KR101286041B1 - Manufacturing and paving method of recycled color ascon - Google Patents

Abstract

PURPOSE: The recycled color ascone manufacture and construction method is provided to recycle the waste ascon or the waste concrete by using a recycled aggregate, secure a various color and excellent color rendering properties of the color ascone. CONSTITUTION: The recycled color ascone comprises an aggregate mixture 100.0, a transparent or semi-transparent binder including a modifier 4.0-8.0 parts by weight, a pigment 1.0-2.5 parts by weight. The aggregate mixture comprises a recycled aggregate 25-90 weight% which produced by the waste ascone or the waste concrete, and the new aggregate 5-70 weight%, and the filler 1-6 weight%. The recycle color ascone manufacture and construction method comprise the following steps of: storing raw materials, heating new aggregate, selecting / storing new aggregate, heating recycled aggregate, storing heated recycled aggregate, weighing, collecting dust, mixing, exhausting recycled color ascone, putting the recycle color ascone in a box and moving, inspecting paved surface, applying a prime coating agent or tack coating agent, installing color ascone, compacting work, connecting work, measuring flatness and thickness, opening traffic. [Reference numerals] (AA) Manufacturing and constructing flowchart; (BB) Step 1- raw material storage process; (CC) Step 2- new aggregate heating process; (DD) Step 3- new aggregate selection storage process; (EE) Step 4- circuit aggregate heating process; (FF) Step 5- circuit aggregate storage process; (GG) Step 6- measuring process; (HH) Step 7- dust recollection process; (II) Step 8- mixing process; (JJ) Step 8-1-injecting and mixing aggregate, filler and dust; (KK) Step 8-2-injecting and mixing binder; (LL) Step 8-3-injecting and mixing paint; (MM) Step9- discharging process; (NN) Step10-shipment and transportation; (OO) Step11-investigating packed side; (PP) Step12-coating prime tack coating agent; (QQ) Step13-laying color ascon; (RR) Step14-mincingprocess; (SS) Step14-1-first mincing; (TT) Step14-2-second mincing; (UU) Step14-3-final mincing; (VV) Step15-constructing binding work; (WW) Step16-measeuing flat level and thickness; (XX) Step17-traffic opening

Description

Manufacturing and Paving Method of Recycled Color Ascon}

The present invention relates to a method for manufacturing and constructing recycled colored ascone, and more particularly, recycled aggregate mixed with circulating aggregate and new aggregate and a transparent or semi-transparent binder in a mixer, and then re-injected to produce a mixed color pigment. The present invention relates to a method for manufacturing color ascon and a method for constructing recycled color ascon which is produced by packing and compacting the produced recycled color ascon.

The improvement of living standards and the change of environmental awareness are not only satisfied with the construction facilities (roads, bridges, etc.) but also more beautiful and environmentally friendly. It became. The road is also planned not only for the convenience of car and human traffic but also for the beautiful scenery of the road and its harmony with nature through harmony with the surrounding environment.

As conventional asphalt concrete pavement is dark black, color asphalt pavement is preferred for parks and tourist attractions where aesthetic beauty is emphasized. Recently, in the case of sidewalks (packaging) using a water-permeable color asphalt mixture has been used a lot. Color asphalt pavement is widely used in relatively small loads such as park trails and bicycle paths. Color asphalt pavement can be paved in various colors in addition to improving the aesthetics, which can give a visual effect to enhance safety for drivers and pedestrians such as bus lanes, pedestrian crossings, and roads in front of schools. In the case of the US, the road through the park called The Franconia Notch Parkway was paved with color asphalt pavement, which was recommended by an environmental organization in 1988.

However, in comparison with the reality that sidewalk color asphalt pavement is relatively used in Korea, roadway color asphalt pavement has not been widely used yet. This is because in the case of sidewalks or bicycle-only roads, large loads are not generated by vehicles, but in order to use them for roadways, they must exhibit the common performance of asphalt pavement level for general roads.

In general, ascon is a mixture of asphalt, coarse aggregate, fine aggregate, and filling material (limestone powder, cement, etc.), and is widely used for road paving and parking lot. Occasionally, plastic deformation creates serious driving problems, or even if there is no plastic deformation problem, the packaging material gradually ages with time, eventually causing severe cracking. The pavement in question involves a lot of maintenance work mainly to cut or roll off the surface layer and overlay the overlaid pavement to protect the infrastructure.

However, due to the recent increase in the dismantling and maintenance of road pavement, the generation of waste ascon (approximately 6 million tons per year) is rapidly increasing, causing serious environmental pollution and resource waste. Therefore, we are promoting the recycling of waste ascon, which is a large amount of construction waste generated at the national level.In order to prevent the environmental pollution caused by illegal landfilling of waste ascon, waste ascon is designated as a designated by-product and the recycling rate is brought to the level of advanced countries. We are continuing our efforts to raise it. However, the recycling of the waste ascon is extremely poor due to the negative viewpoints and various limitations on the recycling of the waste ascon in each region and the corresponding institution, and the production of high-performance recycled ascon mixtures superior to the new ascon is urgently required.

The method for producing and constructing color ascone, which is disclosed in Korean Patent Application No. 10-1165409, filed by the present inventors, includes a first step, a second step of an aggregate heating process, a third step of a selective storage process of selecting and storing aggregate, and raw materials. The fourth step is a weighing process to measure the dust, the fifth step is a dust recovery process to recover the dust, and the aggregate, filler, dust and binder and the pigment weighed in the mixer is mixed while maintaining the temperature 170 ~ 185 ℃ in the mixer The sixth step of the mixing process, the seventh step of discharging the color ascon, the eighth step of loading and moving the color ascon to the transport vehicle and moving to the site, and the paving surface on which the color ascon is constructed The ninth step of inspecting the stiffness, the tenth step of applying the prime coat material or the tack coat material to the asphalt distributor, the eleventh step of laying the asphalt fabric, the twelfth step of compacting with a roller, and the joint It consists of the thirteenth step of joining the place, the fourteenth step of finishing, and the fifteenth step of opening traffic, but there is a problem in that a concrete method is not provided for the use of recycled aggregates.

The color ascone and its manufacturing method disclosed in Korean Patent No. 10-0679928 are heated to 160-190 ° C., based on the percentage of mass passing through 70 μm sieve flour 3 to 8%, 150 μm sieve aggregate flour 6 to 15%, 10 to 21% of 300μm sieve aggregate aggregate, 15 to 28% of 600μm sieve aggregate aggregate, 30 to 50% of 2.36mm sieve aggregate aggregate, 40 to 63% of 4.75mm sieve aggregate aggregate, 13.2mm sieve aggregate aggregate 70 to 90%, 19.0mm sieve flour aggregate 95-100% and 26.5mm sieve flour aggregate 100%, but the inorganic pigment amount by 1 to 2 parts by weight based on 100 parts by weight of 70㎛ sieve aggregate aggregate Incorporating the aggregate containing the inorganic pigment replaced with an amount of 94 to 95% by weight of the total substrate into the mixer; Adding cellulose fibers to the mixer in an amount of 0.2 to 0.5 parts by weight based on 100 parts by weight of the substrate, followed by stirring; Spraying the colorless binder, heated to 140-180 ° C., into the mixer in an amount of 5-6% by weight of the total substrate; And low molecular weight polyethylene waxes obtained by polymerizing or copolymerizing ethylene, low molecular weight polyethylene waxes obtained by thermal decomposition of these polymers or copolymers, and low molecular weight polypropylene waxes obtained by polymerizing or copolymerizing propylene. And at least one low molecular weight wax selected from among low molecular weight polypropylene waxes, petroleum waxes, Fischer-Tropsch waxes, and ethylene-bis-stearamide waxes obtained by thermal decomposition of these polymers or copolymers. It is intended to include the step of adding and mixing in an amount of 3 to 5 parts by weight relative to parts by weight, but differs in detail from the present invention.

The manufacturing method of the color ascone for a roadway as disclosed in Korean Patent Publication No. 10-0368873 is a colorless binder, an aggregate having a particle size of 200 mesh or less, a fine aggregate having a particle size of 200 mesh to 4 mesh, and an aggregate having a particle size of 4 mesh to 13 mm, a coarse pigment, and a modification. In the method for producing a color ascone mixed to include ash and other additives, the filler, fine aggregate and coarse aggregate ratio is a mixture of the ratio of 1: 1.41: 5.76 to 1: 2.32: 7.68, 2 × 2mm as the additive Although it is supposed to mix the crushed paper to include 1.5 parts by weight to 2.5 parts by weight with respect to 100 parts by weight of the binder, there is no specific manufacturing method can be considered different from the present invention.

The method for producing colored modified asphalt as disclosed in Patent 10-0674436 is 50 to 80% by weight of colored or colored coarse aggregate, 15 to 40% by weight of colored or colored fine aggregate, and 5 to 10% by weight of filler material. 5 to 30 parts by weight of any one asphalt pitch or transparent petroleum resin-based colorless binder selected from colored natural asphalt, petroleum asphalt, tar as a binder material, and mixing the mixture with a mixer; 1 to 10 parts by weight of any one or more additives for asphalt modification and an copolymer of ethylene and methacrylic acid selected from an ethylene copolymer or a styrene copolymer and an ionomer including a metal salt of sodium or zinc in the range of 0.5 to 2 parts by weight, 0.1 to 2 parts by weight of a siloxane oligomer having a number average molecular weight of 200 to 15,000 or a silane compound having a number average molecular weight of 2,000 to 15,000 as a fluidizing agent, and mixing by adding; The step of curing the mixture of the above-described step after laying and compacting the asphalt construction surface, but the method is different from the present invention.

Calado road paving method published in Patent 10-0966679 is to install the asphalt mixture and compact the roller after spraying the cement liquid in the range 130 ℃ -60 ℃ asphalt mixture and compacted with the roller to integrate the asphalt and cement, asphalt mixture temperature 80 It is supposed to finish by second spraying the cement liquid at ℃ -30 ℃ to compact with Laura, but only a rough method is posted.

The method for constructing a color non-slip floor pavement disclosed in Korean Patent No. 10-0526416 includes a pretreatment step of washing a construction surface of concrete pavement or asphalt pavement, repairing a damaged part, and forming a primer layer for priming; A first drying step of drying at room temperature for 30 minutes after applying the primer for priming; Resin coating step of forming a resin layer by applying a styrene-based acrylic emulsion resin to the primer layer for priming; Cemented carbide cement 300 ~ 350 Kg / m3, one or a mixture of artificial sand or fine-grain recycled aggregate 330 ~ 410 Kg / m3, recycled pigment 30 ~ 60 Kg / m3 by stirring and mixing 10 ~ 30mm on top of the resin layer A superhard non-slip mortar coating step of laying or roller compacting to a thickness to form a superhard nonslip mortar layer; 100 parts by weight of the styrenic acrylic emulsion resin, 5 to 10 parts by weight of the aqueous coating solvent, 0.5 to 1 part by weight of the antifoaming agent, 0.5 to 1 part by weight of the dispersant, and 100 parts by weight of water are mixed and stirred before the superscopy nonslip mortar layer is dried. A mixed coating agent applying step of forming a mixed coating agent layer by applying a thickness of 3 to 5 mm on the upper portion thereof; It includes a second drying step of drying for at least 24 hours after the application of the mixed coating agent, but relates to a non-slip bottom packaging material.

The present invention for solving the problems as described above uses recycled aggregates to recycle waste ascon or waste concrete, can choose a variety of colors, excellent color development, manufactured to meet the regeneration heating asphalt mixture specifications, aggregate heating and Conventional heat-mixing plants, such as sorting, provide a method for manufacturing recycled color ascon which can be used as it is and a method for paving places where color packaging such as bicycle roads, parks, general walkways, light traffic roads, and bus lanes is required.

Recycled colored ascon production method of the nickname is a first step of the raw material storage process for storing the raw material and the primary selected aggregate to each raw material storage device according to the particle size distribution; A second step of transferring the new aggregate stored in the raw material storage unit to a new aggregate heating device to directly heat the aggregate to 170 to 190 ° C. with flames from burning LPG or heavy oil in a burner; A third step, which is a new aggregate sorting and storing process of sorting and storing the heated new aggregate on a hot screen; The circulating aggregate is transferred to the circulating aggregate heating device by transferring the circulating aggregate stored in the raw material storage device to the circulating aggregate heating device to indirectly heat the circulating aggregate to 170 to 190 ° C. so that the flame generated by burning LPG or heavy oil from the burner does not directly contact the surface of the circulating aggregate. A fourth step of heating; A fifth step of storing the heated heating circulation aggregate before transferring it to the weighing tank; A sixth step of measuring a heated and sorted new aggregate, a circulating aggregate, a filling material, and a recovered dust, and a weighing process of measuring the input amount of the binder and the pigment in a measuring process unit; A seventh step, which is a dust recovery step of collecting dust generated in the second, third, fourth, fifth, and sixth steps in the dust recovery device and storing the dust in the dust bin; An eighth step of mixing the new aggregate, the circulating aggregate, the filling material, and the dust, the binder and the pigment measured in the sixth step while maintaining a temperature of 170 to 185 ° C. in a mixer; A ninth step of temporarily discharging and discharging the recycled color ascone produced in the eighth step to transport the recycled colored ascon into a vehicle; A tenth step in which the recycled color ascon discharged in the ninth step is loaded on a transport vehicle and moved to a site; An eleventh step of preparing a construction for inspecting and surface treating a packaging surface on which the recycled colored ascon is constructed; When laying the roadbed crushed layer and the colored ascon, the prime coat material is applied to increase the adhesion between the roadbed crushed layer and the recycled colored ascone, and when the recycled colored ascone is laid on the layered ascon layer, the layered ascon layer and the recycled color A twelfth step of applying a tack coat material with an asphalt distributor to increase the adhesion of ascon; A thirteenth step of laying 150-175 ° C. recycled colored ascone on the road in a width and thickness determined by an asphalt faver; A fourteenth step of compacting the installed recycled colored ascon with a roller; A fifteenth step of jointing a construction joint in a longitudinal direction and a transverse direction or a connection portion of a structure to a joint; A sixteenth step, which is a finishing step of confirming and finishing the construction of recycled color ascone by measuring flatness and thickness; When the temperature of the recycled color ascon layer is below 60 ℃ or the surface temperature of the packaging layer is 40 ℃ or less comprises a seventeenth step of opening traffic.

The recycled color ascon is composed of 25 to 90% by weight of recycled aggregates produced from the waste ascon or waste concrete, 5 to 70% by weight of new aggregates, and 1 to 6% by weight of aggregates. And it comprises a 4.0 to 8.0 parts by weight of a transparent or semi-transparent binder containing a modifier, and 1.0 to 2.5 parts by weight of a pigment for coloring.

The eighth step includes the eighth-first step of mixing aggregate, filler and dust into the mixer after the first injection; 8-2 step of mixing the binder into the mixer and then mixing; The pigment is added to the mixer in the third step, and then the mixing step 8-3.

The 14th step is the 14-1 step of the first compacting step of compacting twice (one reciprocating) with 8 tons or more of the Mecadum Roller (Mecadum Roller); Step 14-2, which is a second compaction step of repeatedly compacting until a predetermined compaction degree is obtained with a tire roller of 10 tons or more; It consists of 14-3 steps, which is a finishing compaction step that is carried out 4 times (two round trips) to correct irregularities or roller marks with a biaxial type Tendum Roller of 6 tons or more.

The aggregate is composed of circulating aggregates and new aggregates of coarse aggregates of 5 mm or more and coarse aggregates of less than 5 mm, and the coarse aggregates use circulating aggregates made to recycle crushed crushed stone, waste ascon or waste concrete, and the new aggregates and Recycled aggregates should have a specific gravity of 2.5 or more, absorption of 3.0% or less, abrasion loss of 35% or less, stability test loss of sodium sulfate of 12 or less, coating area of 95% or more according to the peeling test, and flat and thin piece content of 20% or less. , The recycled aggregate produced in the waste asphalt concrete has a content of guaspalt of 3.8 (%) or more, guspalt intrusion (25 ° C., 1/10 mm) of 20 or more, the amount lost in the washing test (%) 5 or less, organic foreign matter. Content (%) 1.0 or less (volume), inorganic foreign matter content (%) 1.0 or less, The fine aggregate is natural sand, crushed sand obtained by crushing gravel, recycled glass produced from waste ascon or waste concrete Or crushed material with natural sand and a mixture of sand aggregate circulation.

The particle size of the aggregate is 26.5mm aggregate 100%, 19mm aggregate 95 ~ 100%, 13.2mm aggregate 70 ~ 90%, 4.75mm aggregate 40 ~ 63%, 2.36mm aggregate 30 ~ 50%, 0.6mm aggregate is 15 ~ 28%, 0.3mm aggregate is 10 ~ 21%, 0.15mm aggregate is 6 ~ 15%, 0.075mm aggregate is 3 ~ 8%. 13.2mm aggregates 95 to 100%, 4.75mm aggregates 50 to 67%, 2.36mm aggregates 30 to 50%, 0.6mm aggregates 15 to 28%, 0.3mm aggregates 10 to 21%, 0.15mm aggregates 6 ~ 15%, 0.075mm aggregate should be distributed as type 2, consisting of 3 to 8%.

The filler should be 1.0% or less of moisture, and use limestone powder without lumps of fine grains, and should have a sintering index of 6 or less, flow test of 50% or less, submersion expansion of 3% or less, and peel resistance of 1/4 or less.

The binder has a penetration (at 25 ℃ 100g, 5s) 80 ~ 100 (0.1mm), softening point (℃) 42 ~ 50 ℃ or more, elongation (at 15 ℃ 5cm / min) 100 or more, flash point (COC) 230 ℃ or more , Evaporation loss 0.5% or less, thin film heating 75% or more, solubility (TCE soluble content) 99% or more, homogeneous quality, and should be heated to 150 ℃ or more into the mixer.

The pigment is an inorganic pigment that is 0.2 μm or more powder or liquid and does not contain heavy metals, and should not be discolored or deteriorated even at a high temperature of 140 ° C. or higher, and the quality standards are 80 to 100 (0.1 mm) permeability (at 25 ° C.) and softening point. Silver red should be 40 ~ 50 ℃, red and green 60 ~ 100 ℃, elongation (5cm / min based on 15 ℃) more than 100cm, thin film heating penetration change rate over 50%.

The above-mentioned recycling color ascon production and construction method can solve the problem to be solved of the present invention.

According to the recycled color ascon production and construction method of the present invention can be recycled waste ascon or waste concrete, it is possible to select a variety of colors, excellent color development, excellent durability of packaging under a variety of harsh natural environment It is possible to maintain beautiful color semi-permanently because it is not discolored, and can produce recycled color ascone according to the specification of heated asphalt mixture, and the storage heat sorting of aggregate can use the conventional heat-mixed plant device as it is. The initial investment can be reduced, and it can be installed anywhere where color pavement such as bicycle road, park, general sidewalk, light traffic road and bus lane is needed as appropriate construction method.

1 is a flow chart according to the recycled colored ascon production and construction method of the present invention
Figure 2 is a construction cross-sectional perspective view according to the application of the recycled color ascon construction method of the present invention
Figure 3 is a block diagram of the entire manufacturing process according to the recycled colored ascon production method of the present invention
Figure 4 is a block diagram of the device of the first step raw material storage process according to the recycled color ascone manufacturing method of the present invention
Figure 5 is a block diagram of the device unit of the second aggregate new aggregate heating process according to the recycled color ascon production method of the present invention
Figure 6 is a block diagram of the device of the third step new aggregate sorting storage process according to the recycled color ascon production method of the present invention
Figure 7 is a block diagram of the device unit of the fourth step recycled aggregate heating process according to the recycled colored ascon production method of the present invention
Figure 8 is a block diagram of the apparatus of the fifth step heating circulation aggregate storage process according to the recycled color ascone manufacturing method of the present invention
Figure 9 is a block diagram of the device of the sixth step of the weighing process according to the recycled colored ascon production method of the present invention
10 is a block diagram of the apparatus of the seventh step dust recovery process according to the recycled color ascon production method of the present invention
11 is a block diagram of the apparatus of the eighth step mixing process according to the recycled colored ascon production method of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, the terms to be described later are defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or the operator, and the definitions thereof describe the "method for manufacturing and constructing recycled colored asphalt" according to the present invention. It should be made based on the contents throughout the specification.

Hereinafter, with reference to the drawings a preferred embodiment of the "recycling color ascon production method and construction method" according to the present invention will be described in detail. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

1 is a flow chart according to the production and construction method of recycled colored ascon of the present invention, Figure 2 is a cross-sectional perspective view of the application according to the application of the recycled color ascon construction method of the present invention, Figure 3 is a recycled colored ascon production of the present invention Figure 4 is a block diagram of the entire manufacturing process according to the method, Figure 4 is a block diagram of the device of the first step raw material storage process according to the recycled color ascon production method of the present invention, Figure 5 is Apparatus block diagram of the two-stage new aggregate heating process, Figure 6 is a block diagram of the apparatus unit of the third stage new aggregate sorting storage process according to the recycled color ascon production method of the present invention, Figure 7 is recycled color ascone of the present invention 4 is a block diagram illustrating a device unit of a fourth stage circulating aggregate heating process according to a manufacturing method, and FIG. 8 is a fifth step heating circulating aggregate storage process according to a method for manufacturing recycled colored ascon of the present invention. 9 is a block diagram of a sixth-stage metering process according to a recycled colored ascon production method of the present invention, and FIG. 10 is a seventh stage dust recovery process according to a recycled colored ascon production method of the present invention. Fig. 11 is a block diagram showing the device portion of the eighth step mixing process according to the recycled colored ascon production method of the present invention.

As shown in the flowchart of the method for manufacturing and constructing recycled colored ascon of FIG. 1 and the overall block diagram of the manufacturing process of FIG. 3, the method for producing recycled colored ascon of the present invention is based on particle size distribution of raw materials and primary aggregates. A first step of storing a raw material in a raw material storage device in accordance with the first storage step; A second step of transferring the new aggregate stored in the raw material storage unit to a new aggregate heating device to directly heat the aggregate to 170 to 190 ° C. with flames from burning LPG or heavy oil in a burner; A third step, which is a new aggregate sorting and storing process of sorting and storing the heated new aggregate on a hot screen; The circulating aggregate is transferred to the circulating aggregate heating device by transferring the circulating aggregate stored in the raw material storage device to the circulating aggregate heating device to indirectly heat the circulating aggregate to 170 to 190 ° C. so that the flame generated by burning LPG or heavy oil from the burner does not directly contact the surface of the circulating aggregate. A fourth step of heating; A fifth step of storing the heated heating circulation aggregate before transferring it to the weighing tank; A sixth step of measuring a heated and sorted new aggregate, a circulating aggregate, a filling material, and a recovered dust, and a weighing process of measuring the input amount of the binder and the pigment in a measuring process unit; A seventh step, which is a dust recovery step of collecting dust generated in the second, third, fourth, fifth, and sixth steps in the dust recovery device and storing the dust in the dust bin; An eighth step of mixing the new aggregate, the circulating aggregate, the filling material, and the dust, the binder and the pigment measured in the sixth step while maintaining a temperature of 170 to 185 ° C. in a mixer; In order to transport the recycled color ascone produced in the eighth step to a transport vehicle, it is composed of a ninth step of temporarily storing and discharging.

The recycled color ascon construction method of the present invention includes a tenth step of loading and moving the loaded colored ascon discharged in the ninth step onto a transport vehicle and moving to a site; An eleventh step of preparing a construction for inspecting and surface treating a packaging surface on which the recycled colored ascon is constructed; When laying the roadbed crushed layer and the colored ascon, the prime coat material is applied to increase the adhesion between the roadbed crushed layer and the recycled colored ascone, and when the recycled colored ascone is laid on the layered ascon layer, the layered ascon layer and the recycled color A twelfth step of applying a tack coat material with an asphalt distributor to increase the adhesion of ascon; A thirteenth step of laying 150-175 ° C. recycled colored ascone on the road in a width and thickness determined by an asphalt faver; A fourteenth step of compacting the installed recycled colored ascon with a roller; A fifteenth step of jointing a construction joint in a longitudinal direction and a transverse direction or a connection portion of a structure to a joint; A sixteenth step, which is a finishing step of confirming and finishing the construction of recycled color ascone by measuring flatness and thickness; When the temperature of the recycled color ascon layer is below 60 ℃ or the surface temperature of the packaging layer is 40 ℃ or less comprises a seventeenth step of opening traffic.

The recycled color ascon is composed of 25 to 90% by weight of recycled aggregates produced from the waste ascon or waste concrete, 5 to 70% by weight of new aggregates, and 1 to 6% by weight of aggregates. And it comprises a 4.0 to 8.0 parts by weight of a transparent or semi-transparent binder containing a modifier, and 1.0 to 2.5 parts by weight of a pigment for coloring.

The aggregate is composed of circulating aggregates and new aggregates of coarse aggregates of 5 mm or more and coarse aggregates of less than 5 mm, and the coarse aggregates use circulating aggregates made to recycle crushed crushed stone, waste ascon or waste concrete, and the new aggregates and Recycled aggregates should have a specific gravity of 2.5 or more, absorption of 3.0% or less, wear loss of 35% or less, stability test loss of sodium sulfate of 12 or less, coating area of 95% or more, and flat and thin piece content of 20% or less. .

The recycled aggregate produced from the waste asphalt has more than 3.8% of gusalt content, more than 20% of gusalt penetration (unit: 25 ° C, 1 / 10mm), less than 5% of amount lost in washing test, organic foreign matter content volume basis It should be 1.0% or less, and 1.0% or less by volume.

The fine aggregate uses natural sand, crushed sand obtained by crushing gravel, circulating fine aggregate produced from waste ascon or waste concrete, or a mixture of natural sand and crushed fine circulating fine aggregate.

The particle size of the aggregate is 26.5mm aggregate 100%, 19mm aggregate 95 ~ 100%, 13.2mm aggregate 70 ~ 90%, 4.75mm aggregate 40 ~ 63%, 2.36mm aggregate 30 ~ 50%, 0.6mm aggregate is 15 ~ 28%, 0.3mm aggregate is 10 ~ 21%, 0.15mm aggregate is 6 ~ 15%, 0.075mm aggregate is 3 ~ 8%. 13.2mm aggregates 95 to 100%, 4.75mm aggregates 50 to 67%, 2.36mm aggregates 30 to 50%, 0.6mm aggregates 15 to 28%, 0.3mm aggregates 10 to 21%, 0.15mm aggregates 6 ~ 15%, 0.075mm aggregate should be distributed as type 2, consisting of 3 to 8%.

The filler should be 1.0% or less of moisture, and use limestone powder without lumps of fine grains, and should have a sintering index of 6 or less, flow test of 50% or less, submersion expansion of 3% or less, and peel resistance of 1/4 or less.

The filler should be completely dry and free of clumps of fine particles.

When the limestone powder is used as a filling material, it must meet the standard of KS F 3501 (packing material for packing).

The binder is composed of 30 to 50% by weight asphalt, 25 to 40% by weight modifier, 5 to 20% by weight diluent and 5 to 15% by weight dispersant in the first embodiment.

The asphalt is advantageous to use colorless asphalt, and color asphalt may be used. However, when the colored asphalt is used, the amount of the pigment should be well controlled according to the amount used, and the color may be insufficient when the amount of the pigment is not appropriate. Coloring is not good, so use caution, especially because recycled aggregates produced from waste ascon should be used.

The modifier may be used by selecting one or more of synthetic resins such as petroleum resin, polyethylene resin, polypropylene resin, polystyrene resin, polyvinyl chloride resin, and EVA resin.

The diluent is selected from one or more of white carbon, titanium dioxide, calcium carbonate, white stone powder, galvanized, clay, whitening, gypsum, and powder.

The dispersant may be used by selecting one or more of an aromatic process oil, a paraffinic process oil or a naphthenic process oil.

In the second embodiment, the binder is prepared by mixing 20 to 75% by weight of process oil, 15 to 55% by weight of thermoplastic resin, 5 to 30% by weight of thermoplastic elastomer, and 5 to 20% by weight of rubbers.

The binder has a penetration (at 25 ℃ 100g, 5s) 80 ~ 100 (0.1mm), softening point (℃) 42 ~ 50 ℃ or more, elongation (at 15 ℃ 5cm / min) 100 or more, flash point (COC) 230 ℃ or more , Evaporation loss 0.5% or less, thin film heating 75% or more, solubility (TCE soluble content) 99% or more, homogeneous quality, and should be heated to 150 ℃ or more into the mixer.

The pigment is an inorganic pigment that is 0.2 μm or more powder or liquid and does not contain heavy metals, and should not be discolored or deteriorated even at a high temperature of 140 ° C. or higher, and the quality standards are 80 to 100 (0.1 mm) permeability (at 25 ° C.) and softening point. Silver reddish 40 ~ 50 ℃ Red and green 60 ~ 100 ℃, elongation (5cm / min based on 15 ℃) 100cm or more, thin film heating penetration change rate of 50% or more, circulating aggregate is used, so the input of pigment is new aggregate You should increase the color better than using it.

The chemical composition and physical properties of the pigment according to each color are as follows, and the tolerance is ± 5.0% of each value for each item.

The chemical composition and physical properties of the red pigment are iron oxide content 99.54%, oil absorption 19.1%, moisture and volatile content 0.17%, loss of heat 0.24%, water solubility 0.15%, pH 5.4, specific gravity 5.1, sieve No. 325 0.07 %, Organic pigment 0.0%, the chemical composition and physical properties of the green pigment is iron oxide content 99.5%, oil absorption 12.28%, water and volatile content 0.14%, water solubility 0.13%, pH 6.0, specific gravity 5.1, sieve No.325 Passage 0.03%, organic pigment 0.0%, the chemical composition and physical properties of the yellow pigment, iron oxide content 87.4%, oil absorption 30.1%, water and volatiles 0.31%, water solubility 0.13%, pH 5.9, specific gravity 4.0, sieve No. 325 0.1% pass through, 0.0% organic pigment, the chemical composition and physical properties of the gray pigment is 0.0% iron oxide content, oil absorption 18.62%, water and volatiles 0.16%, water solubility 0.13%, pH 7.5, specific gravity 5.1, Sieve No.325 passed 0.17%, organic pigment 0.0%, the chemical composition and physical properties of the blue pigment is 0.0% iron oxide content, oil absorption 19.64%, water Moisture and volatile content 0.18%, water solubility 0.12%, pH 6.4, specific gravity 4.9, sieve No. 325 0.15%, organic pigment 0.0%, the tolerance is ± 5.0% of each value for each item to be.

The eighth step includes the eighth-first step of mixing aggregate, filler and dust into the mixer after the first injection; 8-2 step of mixing the binder into the mixer and then mixing; The pigment is added to the mixer in the third step, and then the mixing step 8-3.

The 14th step is the 14-1 step of the first compacting step of compacting twice (one reciprocating) with 8 tons or more of the Mecadum Roller (Mecadum Roller); Step 14-2, which is a second compaction step of repeatedly compacting until a predetermined compaction degree is obtained with a tire roller of 10 tons or more; It consists of 14-3 steps, which is a finishing compaction step that is carried out 4 times (two round trips) to correct irregularities or roller marks with a biaxial type Tendum Roller of 6 tons or more.

The raw material storage unit of the first step is composed of an aggregate storage unit, a filler storage unit, a binder storage unit and a pigment storage unit.

The aggregate storage unit is composed of a plurality of new aggregate cold bean and circulating aggregate cold bean classified by particle size, the circulating aggregate is stored in the circulating aggregate cold bean according to the particle size through the screen before storage in the circulating aggregate cold bean .

The filling material storage unit is composed of a filling material between the filling material elevator and the filling material bin, the filling material is stored between the filling material and then raised by the filling material elevator is stored in the filling material bin.

The binder storage unit comprises a binder storage tank, a binder heating heater for maintaining the binder at a recognized temperature, a reformer tank, and a transfer pump for sending the binder to the binder weighing tank, wherein the binder storage tank is fixed before the production of recycled color ascone is started. The binder temperature must be controlled to maintain the temperature.

The new aggregate heating device of the second stage uses a direct-heating cylindrical rotary dryer for heating while rotating the aggregate directly to 170 ~ 190 ℃ by flame from LPG burner to prevent color contamination.

The hot screen of the third step uses a horizontal type of vibrating screen type.

The circulating aggregate heating device of the fourth stage indirectly heats the circulating aggregate at 170 to 190 ° C. so that flames generated by burning LPG or heavy oil from the burner do not directly touch the surface of the circulating aggregate, and as a primary combustion chamber insert type structure. Horizontal rotary type cylindrical drum rotary type horizontal drum rotates, the dryer body for heating the aggregate, a combustion apparatus attached to the dryer body and supplying heat to the dryer body, the discharge hopper discharged the heated aggregate And a rotating device for rotating the dryer body.

The fifth step is to move the heating circulation aggregate heated in the circulation aggregate heating apparatus to the skipper hopper unit to store in the hot sub-bin, the hot sub-bin uses a cylindrical thermal insulation method.

The sixth step of the weighing process unit unit aggregate aggregate tank consisting of a new aggregate metering tank for discharging and measuring the heating new aggregate stored in the hot bin, the circulation aggregate metering tank for discharging and measuring the heating circulation aggregate stored in the hot sub-bin, and a binder storage tank Binder weighing tank for discharging and measuring the binder stored in the container, Filler weighing tank for weighing the filling material stored between the filling material, Recovering dust weighing tank for weighing the collecting dust stored in the collecting dust bin, and pigments stored in the pigment storage tank. It consists of a pigment weighing tank.

The mixer of the eighth step is a type in which the arm of the two axes rotate in different directions to mix the aggregate and the binder, a main body into which the aggregate and the binder are introduced, a wing installed in the main body and mixing the aggregate and the binder; It is composed of a two-axis rotating arm that the blade is installed, a motor for driving the arm, a drive sprocket for connecting the arm and the motor, and a timing gear for connecting the two-axis arm to rotate together, An inlet gate and an outlet gate are formed on the upper and lower portions of the main body.

In the twelfth step, the prime coat material uses RS (C) -3 emulsified asphalt 1 to 2 l / m 2, and the tack coat material uses RS (C) -4 emulsified asphalt 0.3 to 0.6 l / m 2.

The asphalt pavers of the thirteenth step are equipped with a hopper, a screw, an adjustment screed, and a tamper for laying the color ascon flatly, and the work speed can be adjusted according to the supply amount of the color ascon. do.

The step-by-step details of the recycled colored ascon production and construction method of the present invention are as follows.

The first step is a raw material storage process of storing the raw material and the primary sorted aggregate in each raw material storage device according to the particle size distribution.

As shown in FIG. 4, the raw material storage device of the raw material storage process of the first step includes: an aggregate storage device for storing aggregate, a filler storage device for storing filler, and a binder storage device for storing binder; It comprises a pigment storage unit for storing the pigment.

The raw material storage process of the first step is an aggregate storage process for storing aggregate in the aggregate storage unit, a filler storage process for storing the filler in the filler storage unit, and a binder for storing a binder in the binder storage unit And a pigment storage step of storing the pigment in the pigment storage unit.

The aggregate storage process is composed of a new aggregate storage process and circulating bone restoring process.

The new aggregate storage process is first screened and stores the aggregates in the new aggregate yard for each size in the new aggregate cold bean configured by size as a payloader.

The new aggregate cold bean is to be installed as a separate facility by particle size to be separated and stored three or more by each dimension, type, is a facility to temporarily store the spilled aggregate in a certain amount to send to the dryer, a new aggregate heating device. .

The new aggregate cold bean should have a roof facility, the partition between the cold bean hopper so that the input aggregate is not mixed with each other, or the width of the new aggregate cold bean than the width of the payloader to be introduced, the front of the new aggregate cold bean Check the slope of to ensure that the rainwater does not penetrate into the new aggregate cold bean.

A cold bin gate is installed at the lower portion of the new aggregate cold bin, and the cold bin gate is preferably arc-shaped rather than straight so that the flow rate of the gate can be easily controlled.

In addition, a camera facility should be installed on the new aggregate cold bean hopper to see that the aggregate aggregate is accumulated in the new aggregate cold bean so that the operator always checks whether the input aggregate always maintains a constant height during the production of recycled color asphalt mixture.

In addition, the cold aggregate cold bean must be fixedly attached to the cold bean name panel and must be labeled aggregate type.

The recycled aggregate storage process is to pass through the recycled aggregate in the recycled aggregate yard through the screen and stored for each size in the recycled aggregate cold bin configured by size.

The recycled aggregate cold bean should be installed as a separate facility by particle size so that at least three kinds of each dimension and type can be separated and stored, and a facility for temporarily storing the circulating aggregate to be sent to a dryer, which is a circulating aggregate heating device. to be.

The circulating aggregate cold bean should have a roofing facility, and the partition between the cold bean hoppers should be low or the width of the circulating aggregate cold bean should not be narrower than the width of the payloader so as not to mix the injected aggregate with each other. Check the slope of to ensure that the rainwater does not penetrate into the circulation aggregate cold bean.

A cold bin gate is installed below the circulating aggregate cold bin, and the cold bin gate is preferably circular rather than straight so that the flow rate of the gate can be easily controlled.

A camera facility should be installed above the recycled aggregate cold bin hopper to see if aggregate is accumulated in the recycled aggregate cold bin to ensure that the input aggregate is always at a constant height during the production of recycled colored asphalt mixture.

In addition, the circulating aggregate cold bean is to be fixedly attached to the cold bean name panel and to indicate the type of aggregate.

The filling material storage unit is composed of a filling material for storing the filling material primarily, a filling material bin installed at a predetermined height to be easily discharged by gravity, and a filling material elevator transferring the filling material between the filling material bins.

The binder storage unit includes a binder storage tank for storing a binder, a binder heating heater for maintaining the binder at a constant temperature, a transfer pump for sending the binder to a binder weighing tank, and a binder raw material tank to manufacture the binder. And a binder manufacturing and dispensing apparatus for injecting a binder into the binder storage tank is included in the mixing process unit.

The binder storage tank should be controlled to maintain a constant temperature before the production of color ascon.

The binder raw material tank is composed of an asphalt tank storing asphalt, a reforming tank storing a modifier, a diluent tank storing a diluent, and a dispersant tank storing a dispersant.

Each of the raw materials is mixed at a predetermined ratio in the binder manufacturing and feeding device of the mixing process unit to prepare a binder, and the manufactured binder is transferred to the binder storage tank.

The binder storage tank should be able to maintain a proper temperature before production, the binder heating heater is preferably a method of indirect heating with heat medium oil heated using fuel or electricity to maintain a uniform temperature, the binder 130 ~ 170 Must be heated to < RTI ID = 0.0 >

The new aggregate heating step of the second step is a process of directly heating the aggregate to 170 ~ 190 ℃ with a flame from burning the LPG or heavy oil from the burner by transferring the aggregate stored in the new aggregate cold bin to the heating device.

As shown in FIG. 5, the new aggregate heating process unit of the new aggregate heating process is a new aggregate heating device of a rotary dryer type, and a predetermined amount from the new aggregate cold bin to input a batch amount to the new aggregate heating device. Each new aggregate cold bin feeder (Cold Bin Feeder) and to discharge; It is composed of a new aggregate conveyor for transferring the aggregate discharged from the new aggregate cold bean feeder to the new aggregate heating device.

The new aggregate heating device uses a direct-heating cylindrical rotary dryer for heating while rotating the aggregate directly to 170 ~ 190 ℃ with flames burned from the burner LPG to prevent color contamination.

The new aggregate cold bin feeder (Cold Bin Feeder) is installed on the lower side of the new aggregate cold bin to transfer the aggregates by the rotation of the belt to drop on the new aggregate conveyor and adjust the rotational speed of the belt by using a VS motor The flow rate should be adjustable, the camera should be installed so that the operating condition of the new aggregate cold bean feeder can be monitored at all times, and the cab should be alarmed when the motor trips.

The new aggregate conveyor should be installed so that rain does not enter the roof facility.

The new aggregate heating device is a device for drying and heating aggregate, which requires proper quality control and device operation to maintain the production temperature, and for this purpose, it is necessary to check the device constantly, especially from the new aggregate heating device to a hot elevator. In the middle of the aggregate movement, the chute-mounted thermometer should be checked for operation.

The third step is a new aggregate sorting storage process of sorting and storing aggregate heated in the new aggregate heating device on a hot screen (HOt Screen).

As shown in FIG. 6, the new aggregate sorting and storing process unit, which is a device necessary for sorting the new aggregate sorting and storing process, comprises: a hot bin for storing the heated new aggregate discharged from the new aggregate heating device; Hot screen for heating new aggregate is sintered according to the particle size distribution before heating new aggregate is stored in the hot bin, and installed on top of the hot bin and sieved and then heated new aggregate is discharged to the hot bin by gravity. )and; The hot aggregate is discharged from the new aggregate heating device (rotary dryer) is composed of a hot elevator (Hot Elevator) for conveying up to the hot screen.

In the middle of moving the heating aggregate from the new aggregate heating device to the hot elevator, the chute must be equipped with a thermometer to check the temperature of the heating aggregate.

Preferably, the hot screen uses a vibrating screen type horizontal type, and the size of the sieve used for the hot screen is determined by examining the type of asphalt mixture to be produced and the checker when producing aggregate from quarries. It should be possible to supply hot bean, and hot screen sieves have spare screens for each type so that there is no disruption in production.

The hot elevator is preferably made of a bucket conveyor type as a transportation device for lifting up and feeding the heated new aggregate, that is, the heated new aggregate, from the dryer to the hot screen for sieving the heated new aggregate.

In the recycled colored asphalt mixture of the present invention, namely, recycled colored asphalt concrete has a separation of coarse aggregates and fine aggregates in the mixed particle size of 5.0 mm, it is preferable to install a net that can appropriately adjust the mesh in the asphalt mixture, such as SMA pavement. And, in general, in order to adjust the 4.75mm in consideration of durability and the thick aggregate is 9.5mm, 13.2mm, 26.5mm, etc. is an important control point, so that the aggregate of the corresponding size is appropriately stored in the hot bin the hot screen It is desirable to install it.

Since the aggregates are instantaneously sieved in the hot screen, if the hot screen is installed with a size of 13 mm, the aggregates of about 12 mm or 11 mm or less are mainly stored in the hot bin, and the 13-11 mm aggregate is stored in the heartbeat where larger aggregates are stored. May be stored. In general, the hot screen is preferably installed to about 10% larger than the size of the aggregate to be adjusted.

The hot bin is installed in four or more, such as 6mm, 15mm, 21mm, 40mm can be produced to the surface of the degree of granularity recycled color asphalt mixture and the base color recycled color asphalt mixture.

The hot bean is a device used for the final weighing and input of aggregate used in the production of recycled colored asphalt mixture, the level gauge should be properly operated for quality control during production. In general, two or more level gauges are preferably installed for production control.

As the aggregate overflow often occurs when producing recycled colored asphalt mixture, an overflow aggregate storage bin of sufficient size to separately store the overflowed aggregate from the hot bin and the aggregate separated into oversize should be installed. In addition, the size of the overflow aggregate storage bin is preferably to be able to load more than 10% of the aggregate takes 1 hour.

The fourth step is to transfer the circulating aggregate stored in the raw material storage device to the circulating aggregate heating device to prevent the flame from burning LPG or heavy oil from the burner directly to the surface of the circulating aggregate to 170 ~ 190 ℃ Indirect heating is a circulating aggregate heating process.

As shown in FIG. 7, the circulating aggregate heating process unit part of the circulating aggregate heating process is a circulating aggregate heating device which is an indirect heating rotary dryer for heating the circulating aggregate, and the batch aggregate is input to the circulating aggregate heating device. Each of the circulation aggregate cold bin feeders (Cold Bin Feeder) to discharge a certain amount from the circulation aggregate cold bin; It consists of a circulating aggregate conveyor for transferring the aggregate discharged from the circulating aggregate cold bean feeder to the circulating aggregate heating device.

The circulating aggregate cold bin feeder is installed on the bottom of the circulating aggregate cold bin to transfer aggregate to the circulating aggregate conveyor by rotating the belt, and to adjust the rotational speed of the belt by using a VS motor. The flow rate should be adjustable, the camera should be installed so that the operating condition of the circulation aggregate cold bin can be monitored at all times, and the cab should be alarmed when the motor trips.

The circular aggregate conveyor should be installed so that rain does not enter the roof facility.

The circulating aggregate heating device is a device for drying and heating aggregate, which requires proper quality control and device operation to maintain the production temperature, and for this purpose, a regular check of the device is required, and in particular, aggregate is moved from a dryer to a hot elevator. Check that the thermometer mounted on the chute is in operation.

The circulating aggregate heating device is an indirect heating rotary dryer, which is an indirect heating method of heating LPG or heavy oil from the burner to 130-170 ° C. so that the flame does not directly contact the surface of the circulating aggregate. Horizontal rotary type cylindrical drum rotary type horizontal drum rotates, the dryer body for heating the aggregate, a combustion apparatus attached to the dryer body and supplying heat to the dryer body, the discharge hopper discharged the heated aggregate And a rotating device for rotating the dryer body.

The fifth step is a step of storing the heated heating circulation aggregate before transporting it to the weighing tank.

As shown in FIG. 8, the heating circulation aggregate storage process apparatus unit of the heating cycle aggregate storage process includes a hot sub-bin and a hot sub-bin storing the heating cycle aggregate. It is composed of a skipper hopper unit (Skipper Hopper Unit) for transporting the heating circulation aggregate up and stored in the hot sub-bin (Hot Sub-Bin).

The heating circulation aggregate discharged from the circulating aggregate heating device (indirect heating rotary dryer) screens the circulating aggregate in the circulating aggregate storage site in the circulating aggregate storage process as described above because it is difficult to sift the asphalt by melting the hot screen. As it is stored in the circulation aggregate cold bin configured for each size by passing through to thoroughly control the particle size before heating and stored in the hot sub-bin (Hot Sub-Bin) without sieving and the circulation aggregate heating device ( Indirect heating rotary dryer) to the hot sub-bin is transferred to a skipper hopper unit (Skipper Hopper Unit).

The sixth step is a weighing process for measuring the heated new aggregate and the heated circulation aggregate, the filling material and the recovered dust, and the input amount of the binder and the pigment.

As illustrated in FIG. 9, the weighing process apparatus unit of the weighing process measures a new aggregate metering tank for discharging and measuring the heated new aggregate stored in the hot bin, and a circulating aggregate metering for discharging and measuring the heated circulation aggregate stored in the hot subbin. And a binder weighing tank for discharging and measuring the binder stored in the binder storage tank, a filler weighing tank for measuring the filling material, a collecting dust weighing tank for measuring the collected dust, and a pigment weighing tank for measuring the pigment stored in the pigment storage tank.

It is preferable to measure the weight by attaching a load cell to each weighing tank, and the weight may be measured using a level gauge.

Each metering tank shall be free of external spillage of material during valve operation and opening and closing.

Weighing control shall be installed to maintain ± 1.5% aggregate, ± 0.1% binder and ± 0.5% dust.

The seventh step is a dust recovery step of collecting dust generated in the second step, third step, fourth step, fifth step, and sixth step by collecting the dust in the dust recovery unit.

As shown in FIG. 10, the dust recovery process unit part of the dust recovery process includes the new aggregate and the circulating aggregate heating process of the second and fourth stages, the selective storage process of the third and fifth stages, and the sixth stage. A cyclone type primary dust collector which collects the dust generated in the metering process and sends it to the mixing process, and collects large particles, and a secondary filter of the bag filter type which collects fine particles in the exhaust air from the primary dust collector; The mixing process between the air blower for generating a suction static pressure in the primary dust collector and the secondary dust collector, the year for discharging the gas discharged from the air blower, the recovery dust collecting dust from the secondary dust collector to the bottom, and the recovery dust Recovered dust elevate to transfer dust to and from the recovered dust bin, which is stored for sending to the apparatus section, and the recovered dust bin. It is composed of

The dust recovery mainly comprises dust contained in the discharged hot gas of the rotary dryer of the aggregate heating process, recovers dust generated from the hot screen and the hot bin of the sorting and storage process, and dust generated during the measurement of aggregate in the weighing process. .

The dust recovered from the primary dust collector is discharged to the hot elevator using a dust conveyor by discharging the dust with a rotary valve, and the dust recovered from the secondary dust collector is discharged to the recovery dust through the lower screw conveyor and recovered. Using a dust elevator to the recovery dust bin, discharged by gravity, and sent to the mixing process.

The primary dust collector is a cyclone-type exhaust gas containing the dust entered inside in the cyclone cone portion, the dust collected at the bottom by centrifugal force generated at this time and discharged through the center pipe is sent to the secondary filter of the bag filter type The fine particles are collected and discharged to the outside through the flue which generates the suction static pressure necessary for the primary dust collector and the secondary dust collector in the blower and discharges the gas discharged from the blower.

A plurality of primary dust collectors may be installed for each element, and an air blower may be installed separately.

The secondary dust collector uses a bag made of non-woven fabric coated with Teflon, so if the exhaust gas is too high, the bag may be burned out. If the exhaust bag is too low, sulfuric acid is formed by the sulfur contained in the exhaust gas due to condensation. Be careful of the temperature as it can corrode the bag.

The control of the process in the production of recycled colored asphalt is carried out in the above-mentioned raw material storage process, aggregate heating process, sorting storage process, weighing process, in order to meet the quality standards according to KS F 2349 heated asphalt mixture and GR F 4005-2009 recycled heated asphalt mixture. It should be configured to control the mixing process, the discharge process and the dust recovery process and detailed description thereof is omitted in the present invention because it is a known technique.

The eighth step is a mixing process of mixing the heating new aggregate, the heating circulation aggregate, the filler and the dust, the binder and the pigment in the mixer while maintaining the temperature 170 ~ 185 ℃ in the mixer in the sixth step.

The eighth step includes the eighth-first step of mixing aggregate, filler and dust into the mixer after the first injection; 8-2 step of mixing the binder into the mixer and then mixing; The pigment is added to the mixer in the third step, and then the mixing step 8-3.

As shown in FIG. 11, the mixing process apparatus part of the mixing process includes a mixer for mixing aggregate, filler, recovery dust, binder, and pigment; A binder manufacturing and dispensing device and a binder injecting device for preparing the binder and measuring a loading amount to prepare a binder and injecting the prepared binder into the mixer; A aggregate aggregate transfer chute for transferring the aggregate measured in the aggregate weighing tank to the mixer; A filling material transfer chute for transferring the filling material measured in the filling material measuring tank to the mixer; A recovery dust transfer chute for transferring the collection dust metering tank to the mixer; It is composed of a pigment spraying device for spraying a pigment.

The mixer includes a main body into which aggregate and asphalt are introduced, a blade installed in the main body to mix aggregate and asphalt, a two-axis arm rotated to install the blade, a motor driving the arm, and the arm and the motor. The drive sprocket for connecting the two, and the timing gears to be rotated by connecting the two axes of the arm to each other, the upper and lower portions of the main body is formed in the inlet gate and the discharge gate is formed.

The mixer is a type in which two axes of arm rotate in different directions to mix aggregate and asphalt, and the gap between the liner and the wing is usually 3 to 5 mm, and when the thickness is 10 mm or more, the mixing property is low, so that the wing is mixed normally. Replace the edges of the wearer if they are worn.

Step 8-1 is a step of mixing the aggregate, the filling material and the dust after the first injection and mix the aggregate for 5 to 15 seconds.

In step 8-2, the binder is added to the mixer in a second manner and mixed for 5 to 10 seconds.

In step 8-3, the pigment is added to the mixer in the third step and mixed for 30 to 40 seconds. At this time, care should be taken not to overmix.

The binder is composed of 30 to 50% by weight asphalt, 25 to 40% by weight modifier, 5 to 20% by weight diluent and 5 to 15% by weight dispersant in the first embodiment.

The asphalt is advantageous to use colorless asphalt, and color asphalt may be used. However, when the colored asphalt is used, the amount of the pigment should be well controlled according to the amount used, and the color may be insufficient when the amount of the pigment is not appropriate. Coloring is not good, so use caution, especially because recycled aggregates produced from waste ascon should be used.

The modifier may be used by selecting one or more of synthetic resins such as petroleum resin, polyethylene resin, polypropylene resin, polystyrene resin, polyvinyl chloride resin, and EVA resin.

The diluent is selected from one or more of white carbon, titanium dioxide, calcium carbonate, white stone powder, galvanized, clay, whitening, gypsum, and powder.

The dispersant may be used by selecting one or more of an aromatic process oil, a paraffinic process oil or a naphthenic process oil.

In the second embodiment, the binder is prepared by mixing 20 to 75% by weight of process oil, 15 to 55% by weight of thermoplastic resin, 5 to 30% by weight of thermoplastic elastomer, and 5 to 20% by weight of rubbers.

The binder has a penetration (at 25 ℃ 100g, 5s) 80 ~ 100 (0.1mm), softening point (℃) 42 ~ 50 ℃ or more, elongation (at 15 ℃ 5cm / min) 100 or more, flash point (COC) 230 ℃ or more , Evaporation loss 0.5% or less, thin film heating 75% or more, solubility (TCE soluble content) 99% or more, homogeneous quality, and should be heated to 150 ℃ or more into the mixer.

The pigment is an inorganic pigment that is 0.2 μm or more powder or liquid and does not contain heavy metals, and should not be discolored or deteriorated even at a high temperature of 140 ° C. or higher, and the quality standards are 80 to 100 (0.1 mm) permeability (at 25 ° C.) and softening point. Silver reddish 40 ~ 50 ℃ Red and green 60 ~ 100 ℃, elongation (5cm / min based on 15 ℃) 100cm or more, thin film heating penetration change rate of 50% or more, circulating aggregate is used, so the input of pigment is new aggregate You should increase the color better than using it.

The chemical composition and physical properties of the pigment according to each color are as follows, and the tolerance is ± 5.0% of each value for each item.

The chemical composition and physical properties of the red pigment are iron oxide content 99.54%, oil absorption 19.1%, moisture and volatile content 0.17%, loss of heat 0.24%, water solubility 0.15%, pH 5.4, specific gravity 5.1, sieve No. 325 0.07 %, Organic pigment 0.0%, the chemical composition and physical properties of the green pigment is iron oxide content 99.5%, oil absorption 12.28%, water and volatile content 0.14%, water solubility 0.13%, pH 6.0, specific gravity 5.1, sieve No.325 Passage 0.03%, organic pigment 0.0%, the chemical composition and physical properties of the yellow pigment, iron oxide content 87.4%, oil absorption 30.1%, water and volatiles 0.31%, water solubility 0.13%, pH 5.9, specific gravity 4.0, sieve No. 325 0.1% pass through, 0.0% organic pigment, the chemical composition and physical properties of the gray pigment is 0.0% iron oxide content, oil absorption 18.62%, water and volatiles 0.16%, water solubility 0.13%, pH 7.5, specific gravity 5.1, Sieve No.325 passed 0.17%, organic pigment 0.0%, the chemical composition and physical properties of the blue pigment is 0.0% iron oxide content, oil absorption 19.64%, water Moisture and volatile content 0.18%, water solubility 0.12%, pH 6.4, specific gravity 4.9, sieve No. 325 0.15%, organic pigment 0.0%, the tolerance is ± 5.0% of each value for each item to be.

As described above, a binder manufacturing and dispensing apparatus for preparing the binder and injecting the binder into the binder storage tank is included in a mixing process unit, and the binder is prepared into a binder storage tank by preparing a binder in the binder manufacturing and dispensing apparatus. As a binder composition, the asphalt, the modifier, the diluent and the dispersant are stored in the asphalt tank, the modifier tank, the diluent tank, and the dispersant tank, and then stored in the binder storage tank in the binder production and dispensing apparatus and, if necessary, a binder transfer pump. Transfer to the binder weighing tank.

The ninth step is a process of temporarily storing and discharging the recycled color ascone produced in the ninth step in order to transport it to a transport vehicle.

The discharge process apparatus unit used in the discharge process is composed of an ascon storage bin for continuous shipment or storage after shipment of a predetermined amount, and a bin gate installed at the lower portion of the ascon storage bin to open and close at the time of shipment.

At shipment, the temperature of the mixture shall be between 140 and 180 ° C and the temperature of each batch shall be measured with a non-contact infrared thermometer.

The tenth step is a loading and moving step of loading the recycled color ascon discharged in the ninth step onto a transport vehicle and moving to the site.

Recycled color ascon transportation vehicles should be packed with thermal insulation sheets in the loading box, and the number of transportation vehicles should be appropriately adjusted according to the distance of transport so that the asphalt loading and the transportation amount can be harmonized.

Recycled colored ascon site arrival temperature should be in the range of 150 to 175 ° C by measuring a temperature of 5 to 6 cm from the surface of the asphalt concrete.

The transport of recycled colored asphalt should be carried by vehicles with clean and smooth storage boxes. Spraying of light oil is prohibited on the inside of the loading compartment of the vehicle, and a thin (small amount) solution containing a small amount of detergent may be applied to prevent adhesion of the mixture.

Any foreign matter adhering to the inside of the transport vehicle stack will accumulate the next time you transport the mixture.

The eleventh step is a construction preparation step of inspecting and surface-treating the packaging surface on which the recycled color ascon is constructed, and inspecting the existing packaging surface (concrete, ascon, crushed stone substrate, etc.) before the high-performance color mixture is laid. If there is, repair it, and the surface dust and other impurities should be completely removed.

In addition, ascon plant, transportation and construction equipment, etc., which have a significant impact on the construction, should be checked in advance and maintained in good condition.

It is forbidden to apply light oil spray mill to the equipment used in the field. To prevent the adhesion of the mixture, apply a light (small amount) solution containing a small amount of detergent.

Before installing the mixture, remove dirt, soil, and stones from the surface of the base layer or the middle layer.

Where the base is not stable due to the lack of binders, check whether there are any parts that are partially weak or uneven due to the groundwater.

Surface treatment of ascon pavement and concrete pavement surface ① Remove and clean the foreign substances such as mud and dust, ② Check the dryness by checking moisture, moisture, etc. ③ Prevent the scattering of this substance during strong winds. Establish wind protection measures

When installing the color ascon on the roadbed crushed layer, such as the road dedicated to bicycles as shown in Figure 2-1 ① remove the foreign material such as mud, ② check the compaction state, and carefully compacted, ③ Check the surface irregularities and adjust evenly the areas with high irregularities

In the twelfth step, when installing the roadbed crushed layer and the colored ascon, as shown in FIG. 2-1, a prime coating material is applied to increase the adhesion between the roadbed crushed layer and the colored arsenic, and FIGS. 2-2 and FIG. When installing the colored ascon on the base ascon layer, such as 2-3 is a step of applying a tack coat material with an asphalt distributor to increase the adhesion between the base ascon layer and the color ascon.

It is preferable that the prime coat material uses RS (C) -3 emulsified asphalt 1 to 2 l / m 2, and the tack coat material uses RS (C) -4 emulsified asphalt 0.3 to 0.6 l / m 2.

The prime coat material should be sprayed with an asphalt distributor after surface maintenance, and the exact amount of spray should be determined through field tests before spraying, and checked by nozzle status, spray height, spray pressure, etc. so that it can be sprayed evenly on the surface without any partial bias. The speed must be determined and approved by the supervisor, and must be cured more than 24 hours after the construction of prime coat.

As a result of observing 24 hours after spraying on the surface, the small sprayed part should be additionally sprayed and corrected.In case of excessive or not completely absorbed by the surface, sand should be sprayed on the surface to absorb the excess amount. In this case, the scattered sand should be removed and packed with a tire roller before the upper layer is packed.

The tack coating material is a product made by emulsifying a polymer of a special component as a tack coating material for adhesion between the color ascone mixture layer and the base asphalt layer, and it is preferable to use a one-component polymer emulsion prepared with the best quality to have high adhesiveness and permeability. desirable.

The tack coating material has a viscosity (based on 25 ℃) 50 ~ 150 Cps, body residue (based on 1190㎛) 0.3% or less, storage stability (1 day, based on mass%) 1% or less, adhesion test 2/3 or more, freeze stability Is the coarse particles, no agglomerates, the charge of the particles is negative and the volume of the residue to the volume before evaporation should be 45-50%.

The thirteenth step is a step of installing the recycled color ascone of 150 ~ 175 ℃ on the road with a width and thickness determined by the asphalt faver (AspHalt Paver).

Asphalt paver (AspHalt Paver) is equipped with a hopper, a screw, a control screed and a tamper that can lay the recycled color ascon flat, it should be able to adjust the working speed according to the supply amount of color ascon.

In a heat-mix method, it is of utmost importance that the mixture is finished before it is dishwashed, so it should be laid uniformly as soon as the mixture arrives on site.

Laying is based on the supplemental asphalt paver, but it can also be manned in narrow areas or connections where equipment cannot be used, curved sections with very small radius of curvature, and small constructions.

In general, note the following:

end. The recommended mixture temperature for laying is 150-175 and should not be below 140.

I. When the temperature is below 5, it should be installed in accordance with the laying in the cold. In winter, if the wind is strong even if the temperature is above 5, it should be installed in accordance with the laying in the cold.

la. If it starts raining during laying, the laying should be stopped immediately.

The installation by the asphalt paver (AspHalt Paver) should be installed so that the installation by the finisher is equipped with a construction system according to the performance or site conditions of the finisher to ensure sufficient construction width, thickness and flatness.

When the recycled colored ascon laying is completed, the surface of the laying should be observed before compacting with a roller and should be corrected immediately if any of the following abnormalities are found:

(A) When the bell and cross section drafts are not constructed correctly.

(B) when it is not flat.

(C) When the asphalt is lumpy or rough, or only fine grains are collected, the surface texture is not uniform.

Installation by personnel where no equipment is provided (A) Formwork should be installed as necessary prior to the installation of the mixture. The formwork may serve as a reference for the thickness at the time of laying, and also prevents the horn from being pushed outward when compacting. If the curb, side holes, etc. are at the correct height, this is the form substitute.

(B) Recycled colored ascons shall be immediately installed with a rake or the like so as to have a predetermined thickness and shape with uniform density. Manpower laying is important to work quickly because the temperature of the mixture is likely to decrease.

(C) Manpower laying is difficult to achieve flatness, so it should be carefully laid by a skilled Rake man.

(D) It is preferable to work continuously for laying work, but if work is interrupted and harden in the middle, complete the part.

(E) Start to pledge as soon as possible after installation is complete. Check the surface before compacting with a roller and immediately fix any uneven surface or irregularities.

The fourteenth step is a compaction step of compacting the laid color ascon with a roller.

The 14th step is the 14-1 step of the first compacting step of compacting twice (one reciprocating) with 8 tons or more of the Mecadum Roller (Mecadum Roller); Step 14-2, which is a second compaction step of repeatedly compacting until a predetermined compaction degree is obtained with a tire roller of 10 tons or more; It consists of 14-3 steps, which is a finishing compaction step that is carried out 4 times (two round trips) to correct irregularities or roller marks with a biaxial type Tendum Roller of 6 tons or more.

On-site compaction density should be more than 96% of indoor density and bridge packing should be more than 98%.

Where roller compaction is difficult, compact with a manual compactor or a compact roller.

In case of manpower installation or basket work, compaction work should be done promptly, and in order to minimize surface detachment, work should be carried out to prevent material separation and temperature drop.

In general, the compaction by the roller is compacted by moving the width gradually from the lower side to the higher side in the longitudinal direction. In this case, about half of the width of the driving wheel is overlapped with the macadam roller, and about 10 cm is overlapped with the vibration roller.

The compaction frequency distribution should be as uniform as possible.

The roller is compacted with the drive wheels facing forward. This is particularly important in the first compaction. This is because forward lubrication tends not only to have a small vertical load but also to push the mixture forward.

The first compaction step of step 14-1 should be a working speed of 2-3km / hr mixture temperature 140 ℃, and the temperature is as high as possible to the extent that the mixture does not cause displacement or hair cracks (hair crack) .

The first compaction is good twice (1 reciprocation), the edge portion is compacted to some extent with a tamper or rake before the compaction, and the roller is compacted to the end weight. In the compaction of the edge portion, the roller wheel is compacted so that 5 to 10cm goes out from the edge, and the irregularities generated during the compaction are quickly trimmed by the manpower.

The second compaction step of the second step 14-2 should be a working speed of 2-3km / hr mixture temperature 120 ~ 140 ℃, it is carried out after the first compaction until sufficient compaction degree is obtained.

The third compaction step of step 14-3 should be a working speed of 2-3km / hr mixture temperature 90 ℃, so that the roller marks disappear. The roller is generally compacted with a constant speed at low speed, with the drive wheels following the asphalt finisher facing forward.

The fifteenth step is a joint operation step of performing a joint operation where construction joints in a longitudinal direction and a transverse direction or a joint portion of a structure are required.

Since the compaction tends to be insufficient at construction joints and joints with structures, it is difficult to obtain a predetermined compaction degree and becomes discontinuous and easily becomes a weak point.

For this reason, construction joints should be kept as small as possible. Construction joints should be sufficiently compacted and adhered to the upper fabric. Basically, there are two methods of joining and overlapping.

Horizontal joints shall be installed in the cross direction of the road at the end of construction or when Buddick stops working.The joints shall be finished as flat as possible because the parts of the construction directly affect the running performance of the vehicle. When this is expected, the compaction should be completed up to the end of the existing mixture, and (b) transverse joints should be as small as possible, especially in the surface layer, with regard to flatness, and (c) joints at the time of construction interruption or termination. The formwork should be installed in the horizontal direction in advance to finish at the specified height.

Longitudinal joints are joints installed parallel to the center line of roads when the roadway spans multiple lanes. If the pledge is insufficient, the height of the joints may be different and the phenomenon such as cracks may easily appear. The longitudinal joints of the surface shall in principle be consistent with lane marking, and (b) the joint position of each layer shall in no case overlap the joints of the upper layer above the joints of the lower layer, and (c) the longitudinal joints are finishers. Immediately squeeze it from the rear, and overlap it with 5cm on the installation paving, and carefully remove the coarse aggregate with rake etc. in the overlapping area to compact it sufficiently. (D) For the vertical joint, hang the roller roller wheel about 15cm on the newly installed mixture. Beat

The connection part with the structure should be constructed so that the step, the side hole, the manhole, and the other part with the structure should be constructed so that no step occurs due to tamper or iron when the mixture temperature is high. It is better to finish higher than the upper edge of the structure because there is a risk of sticking. In addition, the connection with the structure is easy to open, so special care should be taken.

The sixteenth step is a finishing step of checking and finishing the construction of recycled colored ascon with the flatness measurement and the thickness measurement.

The finished surface of the colored ascon layer shall not be more than 3mm in the most indentation when a straight line of 3m is placed at right angles or parallel to the center line of the road.

Parts that deviate from the flatness criteria should be reconstructed with the supervisor's instruction.

The thickness should be measured by taking a core at a location selected by the supervisor or every 3000㎡. The finished thickness should not exceed 10% or more than 5% less than the design thickness and the cores should be filled immediately.

The seventeenth step is to open traffic when the temperature of the color ascon layer is 60 ° C. or less or the surface temperature of the pavement layer is 40 ° C. or less.

Opening of traffic should be cured for 24 hours or more in order to prevent contamination of the mixture by this substance (minimum 3 hours curing). Spraying a colorless or colored top coating agent immediately after packing to prevent initial contamination and shorten traffic opening. Coating). Opening traffic above 50 ° C causes plastic deformation and surface color defects.

The surface coating treatment step may be added before the seventeenth step.

Surface coating treatment uses top coating agent for surface reinforcement with high adhesion and permeability for the purpose of prevention of pollution and delay of discoloration and discoloration. The method is as follows.

-Clean the surface of the existing pavement so that there is no foreign matter such as dust, moisture, or oil.

-Remove the moisture on the surface of the mixture and apply it when the surface temperature is below 70 ℃ using a spreader (fudda, airless, etc.), roller, brush, etc.

-Surface coating for new packaging and pollution prevention should be applied about 0.2ℓ / ㎡ or less and surface coating for aging repair should be about 0.4ℓ / ㎡.

Allow at least one hour for curing to dry the coating after application.

Figure 2 is a cross-sectional perspective view of the construction according to the application according to the application method according to the color ascon construction of the present invention, Figure 2-1 is an example of the application in the bicycle road, general walkway, park, laying a filter layer (2) 5cm on the roadbed (1) After laying the roadbed crushed layer 3 on the filter layer 2 by 5 cm, and applying a prime coat material on the roadbed crushed layer 3 to form a prime coat layer 6 to improve adhesion to the color ascone After raising, a 5 cm thick color ascon layer 5 is laid to complete the road of bicycle roads, sidewalks, and parks.

FIG. 2-2 shows a filter layer 2 5 cm on a road 1 including a perforated pipe, and a layer of subgrade crushed layer 3 20 cm on the filter layer 2. Thereafter, 5 cm of base asphalt concrete (4) is laid on the subgrade crushed stone layer (3), and a tack coat layer (7) is formed on the base asphalt concrete (4) to form a tack coat layer (7). After raising, 5cm thick color ascon layer 5 is installed to complete the pavement of the light traffic road and the school zone.

2-3 shows an example of application of a bus lane and installs the filter layer 2 5 cm on the roadbed 1 including the perforated pipe, and installs the roadbed crushed layer 3 20-40 cm on the filter layer 2. After laying the base layer ascon layer 4 on the subgrade crushed layer 3 by 10 cm, and applying a tack coat material on the base layer asphalt layer 4 to form a tack coat layer 7 to increase adhesion to the color ascone. 5 cm thick colored ascon layer 5 is installed to complete the pavement for bus lanes.

According to the recycled color ascon production and construction method of the present invention can be recycled waste ascon or waste concrete, it is possible to select a variety of colors, excellent color development, excellent durability of packaging under a variety of harsh natural environment It is possible to maintain beautiful color semi-permanently because it is not discolored, and can produce recycled color ascone according to the specification of heated asphalt mixture, and the storage heat sorting of aggregate can use the conventional heat-mixed plant device as it is. The initial investment can be reduced, and it can be installed anywhere where color pavement such as bicycle road, park, general sidewalk, light traffic road and bus lane is needed as appropriate construction method.

1: roadbed 2: floater layer
3: roadbed crushed stone layer 4: base layer ascon layer
5: color ascon layer 6: prime coat layer
7: tack coat layer

Claims (4)

delete In the method of manufacturing recycled colored asphalt to recycle asbestos and waste concrete, and to improve aesthetics and harmonize with urban environment by producing various colors.
The recycled color ascon is composed of 25 to 90% by weight of recycled aggregates produced from the waste ascon or waste concrete, 5 to 70% by weight of new aggregates, and 1 to 6% by weight of aggregates. It comprises a 4.0 to 8.0 parts by weight of a transparent or semi-transparent binder containing a modifier, and 1.0 to 2.5 parts by weight of a pigment for coloring,
A first step of storing a raw material and primary selected aggregates in each raw material storage device according to the particle size distribution;
A second step of transferring the new aggregate stored in the raw material storage unit to a new aggregate heating device to directly heat the aggregate to 170 to 190 ° C. with flames from burning LPG or heavy oil in a burner;
A third step, which is a new aggregate sorting and storing process of sorting and storing the heated new aggregate on a hot screen;
The circulating aggregate is transferred to the circulating aggregate heating device by transferring the circulating aggregate stored in the raw material storage device to the circulating aggregate heating device to indirectly heat the circulating aggregate to 170 to 190 ° C. so that the flame from burning the LPG or heavy oil does not directly contact the surface of the circulating aggregate. A fourth step of heating;
A fifth step of storing the heated heating circulation aggregate before transferring it to the weighing tank;
A sixth step of measuring a heated and sorted new aggregate, a circulating aggregate, a filling material, and a recovered dust, and a weighing process of measuring the input amount of the binder and the pigment in a measuring process unit;
A seventh step, which is a dust recovery step of collecting dust generated in the second to sixth steps in the dust recovery device and storing the dust in the dust bin;
The new aggregate, the circulating aggregate, the filling aggregate and the dust and the binder and the pigment measured in the sixth step is composed of an eighth step of mixing the mixture while maintaining a temperature of 170 ~ 185 ℃ in the mixer,
The eighth step includes the eighth-first step of mixing the aggregate, filler and dust into the mixer after the first input;
8-2 step of mixing the binder into the mixer and then mixing;
It is composed of the 8-3 step of mixing the pigment into the mixer in the third and then mixing,
The filling material is 1.0% or less of moisture, using limestone powder without fine grain mass, plasticity index of 6 or less, flow test of 50% or less, submersion expansion of 3% or less, peeling resistance of 1/4 or less,
The binder has a penetration (at 25 ℃ 100g, 5s) 80 ~ 100 (0.1mm), softening point (℃) 42 ~ 50 ℃ or more, elongation (at 15 ℃ 5cm / min) 100 or more, flash point (COC) 230 ℃ or more , 0.5% or less of evaporation loss, 75% or more of thin film heating, 99% or more of solubility (soluble content of TCE), heated to 150 ° C or more, and added to the mixer,
The pigment is an inorganic pigment that is 0.2 μm or more powder or liquid and does not contain heavy metals, and does not discolor and deteriorate even at a high temperature of 140 ° C. or higher, and the quality standards are 80 to 100 (0.1 mm) for penetration (25 ° C.), and the softening point is Dark red is 40 ~ 50 ℃, red and green is 60 ~ 100 ℃, elongation (5cm / min at 15 ℃) 100cm or more, thin film heating penetration change rate of 50% or more,
The binder is composed of 40 to 50% by weight asphalt, 25 to 40% by weight modifier, 5 to 20% by weight diluent and 5 to 15% by weight dispersant,
The chemical composition and physical properties of the red pigment are iron oxide content 99.54%, oil absorption 19.1%, moisture and volatile content 0.17%, loss of heat 0.24%, water solubility 0.15%, pH 5.4, specific gravity 5.1, sieve No. 325 0.07 %, Organic pigment 0.0%,
The chemical composition and physical properties of the green pigment are iron oxide content 99.5%, oil absorption 12.28%, water and volatile content 0.14%, water solubility 0.13%, pH 6.0, specific gravity 5.1, passage No. 325 0.03%, organic pigment 0.0 %
The chemical composition and physical properties of the yellow pigment are 87.4% iron oxide content, oil absorption 30.1%, water and volatile components 0.31%, water solubility 0.13%, pH 5.9, specific gravity 4.0, sieve No. 325 0.11%, organic pigment 0.0 % ego,
The chemical composition and physical properties of the gray pigment are 0.0% iron oxide content, oil absorption 18.62%, water and volatile content 0.16%, water solubility 0.13%, pH 7.5, specific gravity 5.1, passage No. 325 0.17%, organic pigment 0.0 %
The chemical composition and physical properties of the blue pigment are 0.0% iron oxide content, oil absorption 19.64%, water and volatile content 0.18%, water solubility 0.12%, pH 6.4, specific gravity 4.9, sieve No. 325 0.15%, organic pigment 0.0 Recycled colored ascon production method characterized in that
In the method of manufacturing recycled colored asphalt to recycle asbestos and waste concrete, and to improve aesthetics and harmonize with urban environment by producing various colors.
The recycled color ascon is composed of 25 to 90% by weight of recycled aggregates produced from the waste ascon or waste concrete, 5 to 70% by weight of new aggregates, and 1 to 6% by weight of aggregates. It comprises a 4.0 to 8.0 parts by weight of a transparent or semi-transparent binder containing a modifier, and 1.0 to 2.5 parts by weight of a pigment for coloring,
A first step of storing a raw material and primary selected aggregates in each raw material storage device according to the particle size distribution;
A second step of transferring the new aggregate stored in the raw material storage unit to a new aggregate heating device to directly heat the aggregate to 170 to 190 ° C. with flames from burning LPG or heavy oil in a burner;
A third step, which is a new aggregate sorting and storing process of sorting and storing the heated new aggregate on a hot screen;
The circulating aggregate is transferred to the circulating aggregate heating device by transferring the circulating aggregate stored in the raw material storage device to the circulating aggregate heating device to indirectly heat the circulating aggregate to 170 to 190 ° C. so that the flame generated by burning LPG or heavy oil from the burner does not directly contact the surface of the circulating aggregate. A fourth step of heating;
A fifth step of storing the heated heating circulation aggregate before transferring it to the weighing tank;
A sixth step of measuring a heated and sorted new aggregate, a circulating aggregate, a filling material, and a recovered dust, and a weighing process of measuring the input amount of the binder and the pigment in a measuring process unit;
A seventh step, which is a dust recovery step of collecting dust generated in the second to sixth steps in the dust recovery device and storing the dust in the dust bin;
The new aggregate, the circulating aggregate, the filling aggregate and the dust and the binder and the pigment measured in the sixth step is composed of an eighth step of mixing the mixture while maintaining a temperature of 170 ~ 185 ℃ in the mixer,
The eighth step includes the eighth-first step of mixing the aggregate, filler and dust into the mixer after the first input;
8-2 step of mixing the binder into the mixer and then mixing;
It is composed of the 8-3 step of mixing the pigment into the mixer in the third and then mixing,
The filling material is 1.0% or less of moisture, using limestone powder without fine grain mass, plasticity index of 6 or less, flow test of 50% or less, submersion expansion of 3% or less, peeling resistance of 1/4 or less,
The binder has a penetration (at 25 ℃ 100g, 5s) 80 ~ 100 (0.1mm), softening point (℃) 42 ~ 50 ℃ or more, elongation (at 15 ℃ 5cm / min) 100 or more, flash point (COC) 230 ℃ or more , 0.5% or less of evaporation loss, 75% or more of thin film heating, 99% or more of solubility (soluble content of TCE), heated to 150 ° C or more, and added to the mixer,
The pigment is an inorganic pigment that is 0.2 μm or more powder or liquid and does not contain heavy metals, and does not discolor and deteriorate even at a high temperature of 140 ° C. or higher, and the quality standards are 80 to 100 (0.1 mm) for penetration (25 ° C.), and the softening point is Dark red is 40 ~ 50 ℃, red and green is 60 ~ 100 ℃, elongation (5cm / min at 15 ℃) 100cm or more, thin film heating penetration change rate of 50% or more,
The binder is composed of 20 to 75% by weight of process oil, 15 to 55% by weight of thermoplastic resin, 5 to 30% by weight of thermoplastic elastomer and 5 to 20% by weight of rubbers,
The chemical composition and physical properties of the red pigment are iron oxide content 99.54%, oil absorption 19.1%, moisture and volatile content 0.17%, loss of heat 0.24%, water solubility 0.15%, pH 5.4, specific gravity 5.1, sieve No. 325 0.07 %, Organic pigment 0.0%,
The chemical composition and physical properties of the green pigment are iron oxide content 99.5%, oil absorption 12.28%, water and volatile content 0.14%, water solubility 0.13%, pH 6.0, specific gravity 5.1, passage No. 325 0.03%, organic pigment 0.0 %
The chemical composition and physical properties of the yellow pigment are 87.4% iron oxide content, oil absorption 30.1%, water and volatile components 0.31%, water solubility 0.13%, pH 5.9, specific gravity 4.0, sieve No. 325 0.11%, organic pigment 0.0 % ego,
The chemical composition and physical properties of the gray pigment are 0.0% iron oxide content, oil absorption 18.62%, water and volatile content 0.16%, water solubility 0.13%, pH 7.5, specific gravity 5.1, passage No. 325 0.17%, organic pigment 0.0 %
The chemical composition and physical properties of the blue pigment are 0.0% iron oxide content, oil absorption 19.64%, water and volatile content 0.18%, water solubility 0.12%, pH 6.4, specific gravity 4.9, sieve No. 325 0.15%, organic pigment 0.0 %
The raw material storage device of the first step is composed of a new aggregate storage unit, a circulating aggregate storage unit, a filler storage unit, a binder storage unit and a pigment storage unit, the new aggregate storage unit and the circulating aggregate storage unit Consists of a number of cold beans, sorted by star,
The binder storage unit includes a binder storage tank for storing a binder, a binder heating heater for maintaining the binder at a constant temperature, a transfer pump for sending the binder to a binder weighing tank, and a binder raw material tank. The binder temperature is controlled to maintain a constant temperature before the production of colored ascon,
The new aggregate heating device of the second stage uses a direct-heating cylindrical rotary dryer for heating while rotating the aggregate directly to 170 ~ 190 ℃ with flames burned from LPG burner to prevent color contamination,
In the third step, the heated new aggregate heated in the new aggregate heating device is transferred to a hot elevator, put into a hot screen, and sorted on the hot screen, and then hot bin. Bin), the hot screen (Hot Screen) uses a vibrating screen type of horizontal,
The circulating aggregate heating device of the fourth stage indirectly heats the circulating aggregate at 170 to 190 ° C. so that flames generated by burning LPG or heavy oil from the burner do not directly contact the surface of the circulating aggregate, and is horizontally inserted into the primary combustion chamber inner cylinder type structure. A rotary type cylindrical drum rotating in a horizontal drum shape, the dryer body for heating aggregate, a combustion apparatus attached to the dryer body and supplying heat to the dryer body, a discharge hopper for discharging the heated aggregate; Is composed of a rotating device for rotating the dryer body,
The fifth step is to move the heating circulation aggregate heated in the circulation aggregate heating apparatus to the skipper hopper unit to store in the hot sub-bin,
The sixth step of the weighing process unit unit aggregate weighing tank consisting of a new aggregate weighing tank for discharging and measuring the heating new aggregate stored in the hot bin and a new aggregate weighing tank for discharging and measuring the heating cycle aggregate stored in the hot sub-bin, and a binder storage tank Binder weighing tank for discharging and measuring the binder stored in the container, Filler weighing tank for weighing the filling material stored between the filling material, Recovering dust weighing tank for weighing the collecting dust stored in the collecting dust bin, and pigments stored in the pigment storage tank. Consisting of pigment weighing tank,
The dust recovery apparatus unit of the seventh step is a cyclone-type primary dust collector for collecting large particles, a bag filter type secondary dust collector for collecting fine particles in the exhaust air from the primary dust collector, and the primary Sending the dust collector and the secondary dust collector between the exhaust fan and the year to discharge the gas discharged from the exhaust fan, the dust collected from the secondary dust collector to the lower collecting dust, and the return dust to the mixing process unit And a recovery dust elevator for transferring dust from the recovery dust to the recovery dust bin between the recovery dust and
The mixer of the eighth step is a type in which the arm of the two axes rotate in different directions to mix the aggregate and the binder, a main body into which the aggregate and the binder are introduced, a wing installed in the main body and mixing the aggregate and the binder; It is composed of a two-axis rotating arm that the blade is installed, a motor for driving the arm, a drive sprocket for connecting the arm and the motor, and a timing gear for connecting the two-axis arm to rotate together, Recycled colored ascon production method characterized in that the upper and lower portions of the main body is formed with the inlet gate and the discharge gate
delete

Images