KR101165409B1 - Manufacturing and paving method of color ascon - Google Patents

Abstract

PURPOSE: A construction method of color asphalt concrete and color asphalt concrete are provided to improve color rendering property and to maintain the color semi-permanently by mixing aggregate mixture, transparent or semi-transparent color pigment and binder. CONSTITUTION: A color asphalt concrete comprises 100.0 parts by weight of aggregate mixture which includes 94-99 weight% of aggregate and 1-6 weight% of filler and 5-8 parts by weight of transparent or semi-transparent binder and 0.1-2 parts by weight of pigment. A construction method of color asphalt concrete comprises the following steps: storing raw materials; heating aggregates; sorting and storing the aggregates; collecting dust; mixing the quantized aggregates, filler, dust, binder, and pigment in a mixer at 170-185 deg. Celsius; discharging color asphalt concrete; transferring the color asphalt concrete to the field; inspecting pave surface which the color asphalt concrete will be constructed; spreading prime coat ash or tack coat ash using an asphalt distributor; installing asphalt paver; hardening with a roller; welding; finishing; and opening the road.

Description

Manufacturing and construction method of color ascon {Manufacturing and Paving Method of Color Ascon}

The present invention relates to a method for producing and constructing color ascon, and more particularly, to a method for producing color ascon which is produced by mixing an aggregate mixture and a transparent or translucent binder in a mixer and then adding color pigments to produce a mixture. The present invention relates to a method for constructing a color ascon, in which a color ascon is laid and compacted.

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.

The color ascone and its manufacturing method disclosed in Patent No. 10-0679928 and heated to 160 ~ 190 ℃, based on the percentage of the mass passing through 70㎛ sieve flour 3 to 8%, 150㎛ sieve through flour aggregate 6-15%, 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 amount of 1 ~ 2 parts by weight based on 100 parts by weight of 70㎛ sieve aggregate aggregate Incorporating the aggregate containing the inorganic pigment replaced by the 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 base material, followed by stirring; Spraying the colorless binder, heated to 140-180 ° C., into the mixer in an amount of 5 to 6% by weight of the entire 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 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 ㎏ / ㎥, one of artificial sand or fine granule recycling aggregate or a mixture of 330 ~ 410 ㎏ / ㎥, recycled pigment 30 ~ 60 ㎏ / ㎥ mixed agitator 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 above problems can be selected from a variety of colors and excellent color development, manufactured to meet the specifications of the heating asphalt mixture, the conventional heat-mixed plant, such as aggregate heating and sorting production of color ascone can be used as it is It provides a method of pavement in places where color pavement is needed, such as bicycle paths, parks, general sidewalks, light traffic lanes, and bus lanes.

The method of manufacturing and constructing color ascon according to the present invention includes a first step of storing a raw material and a primary selected aggregate in a raw material storage unit according to a particle size distribution; A second step of transferring the aggregate stored in the raw material storage unit to a heating device, the aggregate heating process of directly heating the aggregate to 170 to 190 ° C. with a flame from burning LPG or heavy oil in a burner; A third step of sorting and storing process of sorting and storing the heated aggregate on a hot screen; A fourth step of measuring a heated and sorted aggregate, a filling material, and a recovered dust, and measuring an input amount of the binder and a pigment in a measuring process unit; A fifth step, which is a dust recovery step of collecting dust generated in the second, third and fourth steps and storing the dust in a dust bin; A sixth step of mixing the aggregate, the filling material, and the dust, the binder and the pigment measured in the mixer in the fourth step while maintaining the temperature at 170 to 185 ° C. in the mixer; A seventh step of temporarily discharging and discharging the colored ascon produced in the sixth step to transport the colored ascon into a vehicle; An eighth step of loading and moving the colored ascon discharged in the seventh step onto a transport vehicle and moving to a site; A ninth step of inspecting and surface treating the pavement surface on which the colored ascon is constructed; When laying the roadbed crushed layer and the colored ascon, a prime coat material is applied to increase the adhesion between the roadbed crushed layer and the colored ascone, and when laying the colored ascon on the layered ascon layer, the adhesion between the layered ascon layer and the colored ascone. A tenth step of applying the tack coat material with an asphalt distributor to increase the weight; An eleventh step of installing the color ascone at 150 to 175 ° C. on the road with a width and a thickness determined by an asphalt paver; A twelfth step of compacting the installed colored ascon with a roller; A thirteenth step of joining the joints in the longitudinal and transverse directions or where the joints of the structure are required; A fourteenth step, which is a finishing step of checking and finishing the color ascon construction by measuring the flatness and the thickness; The fifteenth step of opening traffic when the temperature of the color ascon layer is 60 ° C. or less or the packaging layer surface temperature is 40 ° C. or less.

The color ascon is 5 to 8 parts by weight of a transparent or semi-transparent binder that combines the aggregate mixture to 100 parts by weight of aggregates composed of 94 to 99% by weight of aggregates and 1 to 6% by weight of fillers, and includes a modifier and a collar. It contains 0.1 to 2 parts by weight of the pigment for the bet.

The sixth step is the 6-1 step of mixing the first aggregate, the filling material and the dust in the mixer after mixing; 6-2 step of mixing the binder into the mixer and then mixing; The pigment is added to the mixer in the third step and then composed of 6-3 steps of mixing.

Step 12-1 includes step 12-1, which is a first compaction step of compacting twice (one reciprocation) with an 8 ton or more Mecadum Roller; Step 12-2, 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 12-3 steps, which is a finishing compaction step that is carried out four times (two round trips) to correct unevenness or roller marks with a biaxial type Tendum Roller of 6 tons or more.

The aggregate is composed of coarse aggregate of 2.36mm or more and fine aggregate of less than 2.36mm as a new aggregate, and the coarse aggregate uses crushed crushed stone, specific gravity of 2.5 or more, absorption of 3.0% or less, wear loss of 35% or less, stability test loss In the case of sodium sulfate, the quality should be 12 or less, 95% or more of the coating area by film peeling test, and 20% or less of the content of flat and thin pieces. The fine aggregate is natural sand, a mixture of crushed sand obtained by crushing gravel, or a mixture of crushed sand Use

Particle size of the aggregate is 26.5mm aggregate 100%, 19mm aggregate 95 ~ 100%, 13.2mm aggregate 78 ~ 90%, 4.75mm aggregate 45 ~ 65%, 2.36mm aggregate 35 ~ 50%, 0.6mm aggregate is 18 ~ 30%, 0.3mm aggregate is 10 ~ 21%, 0.15mm aggregate is 6 ~ 16%, 0.075mm aggregate is 4 ~ 8%. 13.2mm aggregates 95-100%, 4.75mm aggregates 55-70%, 2.36mm aggregates 35-50%, 0.6mm aggregates 18-30%, 0.3mm aggregates 10-21%, 0.15mm aggregates 6 ~ 16%, 0.075mm aggregate is distributed in the second type consisting of 4 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 less than 0.5%, thin film heating more than 75%, solubility (TCE soluble content) more than 99%, the appearance is transparent and homogeneous quality, should be heated to 150 ℃ or more into the mixer.

The pigment is an inorganic pigment which is a powder or liquid and does not contain heavy metals, and should not be discolored or altered 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 dark red color is 40 ~ 50 ℃ Red and green should be 60 ~ 100 ℃, elongation (5cm / min based on 15 ℃) 100cm or more, thin film heating penetration change rate of 50% or more.

The problem to be solved of the present invention can be solved by the method of manufacturing and constructing the colored ascon.

According to the method of manufacturing and constructing color ascon of the present invention, various colors can be selected, excellent color development, excellent durability of packaging under various and harsh natural environments, and do not discolor to maintain beautiful colors semi-permanently. It is possible to manufacture colored ascone according to the specification of heated asphalt mixture, and the storage heating and sorting of aggregate can use the conventional heat-mixed plant device as it is, so that the initial investment of manufacturing equipment can be reduced, and the appropriate construction method There is an advantage that can be installed anywhere where color pavement such as bicycle path, park, general sidewalk, light traffic road and bus lane.

1 is a flow chart according to the manufacturing and construction method of the color ascon of the present invention
Figure 2 is a cross-sectional perspective view of the construction according to the application of the color ascon construction method of the present invention
Figure 3 is a block diagram of the entire manufacturing process according to the color ascon production method of the present invention
Figure 4 is a block diagram of the raw material storage process apparatus according to the manufacturing method of the color ascone of the present invention
Figure 5 is a block diagram of the heating process unit according to the manufacturing method of the color ascone of the present invention
Figure 6 is a block diagram of the sorting storage process apparatus according to the manufacturing method of the color ascone of the present invention
Figure 7 is a block diagram of the weighing process unit according to the manufacturing method of the color ascone of the present invention
8 is a block diagram of the dust recovery process unit according to the manufacturing method of color ascone of the present invention
Figure 9 is a block diagram of the mixing process unit according to the manufacturing method of the color ascone 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, 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 color ascon" according to the present invention. It should be made based on the contents throughout the specification.

Hereinafter, preferred embodiments of the "color ascon production method and construction method" according to the present invention will be described in detail with reference to the drawings. 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 manufacturing method and construction method of the color ascon of the present invention, Figure 2 is a cross-sectional perspective view of the construction according to the application according to the construction method of the color ascon of the present invention, Figure 3 is a manufacturing method of the color ascon according to the present invention 4 is a block diagram of an entire manufacturing process, and FIG. 4 is a block diagram of a raw material storage process unit according to the method of manufacturing color ascon of the present invention. FIG. 5 is a block diagram of a heating process unit unit according to a method of manufacturing color ascon of the present invention. Is a block diagram of the sorting storage process apparatus according to the color ascon production method of the present invention. 7 is a block diagram of the measuring process unit according to the manufacturing method of the color ascon of the present invention, Figure 8 is a block diagram of the dust recovery process unit according to the manufacturing method of the color ascon of the present invention, Figure 9 is a production of color ascon of the present invention It is a block diagram of the mixing process apparatus part according to the method.

As shown in the flowchart of the method of manufacturing and constructing the color ascon of FIG. 1 and the entire block diagram of the manufacturing process of FIG. 3, the method of manufacturing the color ascon of the present invention is adapted to match the particle size distribution of raw materials and primary aggregates. A first step which is a raw material storage process stored in each raw material storage unit; A second step of transferring the aggregate stored in the raw material storage unit to a heating device, the aggregate heating process of directly heating the aggregate to 170 to 190 ° C. with a flame from burning LPG or heavy oil in a burner; A third step of sorting and storing process of sorting and storing the heated aggregate on a hot screen; A fourth step of measuring a heated and sorted aggregate, a filling material, and a recovered dust, and measuring an input amount of the binder and a pigment in a measuring process unit; A fifth step, which is a dust recovery step of collecting dust generated in the second, third and fourth steps and storing the dust in a dust bin; A sixth step of mixing the aggregate, the filling material, and the dust, the binder and the pigment measured in the mixer in the fourth step while maintaining the temperature at 170 to 185 ° C. in the mixer; The seventh step is a discharge step of temporarily storing and discharging the colored ascon produced in the sixth step to transport the colored ascon into a transport vehicle.

The color ascon construction method of the present invention includes: an eighth step of loading and moving the color ascon discharged in the seventh step onto a transport vehicle and moving to a site; A ninth step of preparing and inspecting the pavement surface on which the color ascon is constructed; When laying the roadbed crushed layer and the colored ascon, a prime coat material is applied to increase the adhesion between the roadbed crushed layer and the colored ascone, and when laying the colored ascon on the layered ascon layer, the adhesion between the layered ascon layer and the colored ascone. A tenth step of applying the tack coat material with an asphalt distributor to increase the weight; An eleventh step of installing the color ascone at 150 to 175 ° C. on the road with a width and a thickness determined by an asphalt paver; A twelfth step of compacting the installed colored ascon with a roller; A thirteenth step of joining the joints in the longitudinal and transverse directions or where the joints of the structure are required; A fourteenth step, which is a finishing step of checking and finishing the color ascon construction by measuring the flatness and the thickness; The fifteenth step of opening traffic when the temperature of the color ascon layer is 60 ° C. or less or the packaging layer surface temperature is 40 ° C. or less.

The color ascon is 5 to 8 parts by weight of a transparent or semi-transparent binder that combines the aggregate mixture to 100 parts by weight of aggregates composed of 94 to 99% by weight of aggregates and 1 to 6% by weight of fillers, and includes a modifier and a collar. It contains 0.1 to 2 parts by weight of the pigment for the bet.

The aggregate is composed of coarse aggregate of 2.36mm or more and fine aggregate of less than 2.36mm as a new aggregate, and the coarse aggregate uses crushed crushed stone, specific gravity of 2.5 or more, absorption of 3.0% or less, wear loss of 35% or less, stability test loss In the case of sodium sulfate, the quality should be 12 or less, 95% or more of the coating area by film peeling test, and 20% or less of the content of flat and thin pieces, and the fine aggregate is natural sand, a mixture of crushed sand obtained by crushing gravel or a mixture of natural sand and crushed sand Use

Particle size of the aggregate is 26.5mm aggregate 100%, 19mm aggregate 95 ~ 100%, 13.2mm aggregate 78 ~ 90%, 4.75mm aggregate 45 ~ 65%, 2.36mm aggregate 35 ~ 50%, 0.6mm aggregate is 18 ~ 30%, 0.3mm aggregate is 10 ~ 21%, 0.15mm aggregate is 6 ~ 16%, 0.075mm aggregate is 4 ~ 8%. 13.2mm aggregates 95-100%, 4.75mm aggregates 55-70%, 2.36mm aggregates 35-50%, 0.6mm aggregates 18-30%, 0.3mm aggregates 10-21%, 0.15mm aggregates 6 ~ 16%, 0.075mm aggregate is distributed in the second type consisting of 4 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 45 to 60% by weight of styrene-butadiene copolymer, 20 to 40% by weight of low density polystyrene as a modifier, 5 to 15% by weight of calcium carbonate as a diluent, and 5 to 10% by weight of aromatic process oil as a dispersant. , 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 Weight loss 0.5% or less, thin film heating 75% or more, solubility (TCE soluble content) 99% or more, the appearance is transparent and homogeneous quality, and should be heated to 150 ℃ or more into the mixer.

The pigment is an inorganic pigment which is a powder or liquid and does not contain heavy metals, and should not be discolored or altered 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 dark red color is 40 ~ 50 ℃ Red and green should be 60 ~ 100 ℃, elongation (5cm / min based on 15 ℃) 100cm or more, thin film heating penetration change rate of 50% or more.

The sixth step is the 6-1 step of mixing the first aggregate, the filling material and the dust in the mixer after mixing; 6-2 step of mixing the binder into the mixer and then mixing; The pigment is added to the mixer in the third step and then composed of 6-3 steps of mixing.

Step 12-1 includes step 12-1, which is a first compaction step of compacting twice (one reciprocation) with an 8 ton or more Mecadum Roller; Step 12-2, 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 12-3 steps, which is a finishing compaction step that is carried out four times (two round trips) to correct unevenness 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 cold bins classified by particle size.

The binder storage unit is composed of a binder storage tank, a binder heating heater for maintaining the binder at a recognized temperature, and a transfer pump for sending the binder to the binder weighing tank, wherein the binder storage tank can maintain a constant temperature before the production of color ascon The binder temperature must be controlled.

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

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

The fourth step of the weighing process unit is an aggregate weighing tank for discharging and measuring the heating aggregate stored in the hot bin, a binder weighing tank for discharging and measuring the binder stored in the binder storage tank, and a filler measuring tank for measuring the filling material stored between the filling material; It consists of a recovery dust metering tank which measures the collection dust stored in the collection dust bin, and a pigment weighing tank which measures the amount of the pigment stored in the pigment storage tank to be used.

The mixer of the sixth 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 tenth step, the prime coat material uses 1 to 2 l / m 2 of RS (C) -3 emulsified asphalt, and the tack coat material uses 0.3 to 0.6 l / m 2 of RS (C) -4 emulsified asphalt.

Asphalt Paver of the eleventh step is to be equipped with a hopper, screw, adjusting screed and tamper that can lay the color ascon evenly to be able to adjust the working speed according to the supply amount of color ascon do.

Details of step-by-step manufacturing and construction method of the color ascone of the present invention are as follows.

The raw material storage process of the first step is an aggregate storage process for storing the aggregates in the aggregate storage unit, as shown in Figure 4, a filler storage process for storing the filling material in the filler storage unit, and a binder storage unit A binder storage process for storing a binder and a pigment storage process for storing a pigment in the pigment storage unit.

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

The 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 for temporarily storing the spilled aggregate in a certain amount to send to the dryer.

The cold bean should have a roofing facility, and the partition between the cold bean hoppers should not be low or the cold bean width should be narrower than the width of the payloader to input the aggregate so that the aggregates do not mix with each other. Does not penetrate into the cold bean.

A cold bin gate is installed below the 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 above the cold bean hopper to see that aggregates are accumulated in the cold bin to ensure that the operator always keeps a constant height during production of the asphalt mixture.

In addition, the 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 is composed of a binder storage tank, a binder heating heater for maintaining the binder at a recognized temperature, and a transfer pump for sending the binder to the binder weighing tank, wherein the binder storage tank can maintain a constant temperature before the production of color ascon The binder temperature must be controlled.

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 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 raw material storage unit to the heating device.

The apparatus used in the aggregate heating process is a heating device consisting of a rotary dryer as shown in Figure 5, and each cold bean feeder for discharging a predetermined amount from the cold bin in order to put a batch amount into the rotary dryer ( Cold Bin Feeder); It is composed of an aggregate conveyor for transferring the aggregate discharged from the cold bean feeder to the dryer.

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

The cold bin feeder is installed at the lower part of the cold bin to transfer aggregate to the aggregate conveyor by rotating the belt, and to be dropped onto the aggregate conveyor, and the flow rate can be adjusted by adjusting the rotational speed of the belt using a VS motor. In addition, the camera should be installed so that the operating condition of the cold bean can be monitored so that the operating state can be always monitored in the cab, and an alarm should be issued to the cab when the motor trips.

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

The rotary dryer is a device for drying and heating aggregate, which requires proper quality control and device operation to maintain the production temperature, and this requires regular device checks, and in particular, the intermediate of moving aggregate from the rotary dryer to the hot elevator. The thermometer mounted on the chute must be checked for operation.

The rotary dryer is a direct heating method for heating the aggregate directly to 170 ~ 190 ℃ by the flame from burning the LNG, heavy oil or bunker C oil in the burner.

The third step is a sorting storage process of sorting and storing the aggregate heated in the rotary dryer on a hot screen (Hot Screen).

The sorting storage process unit is a device for sorting the sorting storage process, as shown in Figure 6 Hot Bin (hot bin) for storing the heating aggregate discharged from the rotary dryer; A hot screen for heating the aggregates in accordance with the particle size distribution before the heating aggregates are stored in the hot bin, and installed on the upper portion of the hot bins to be discharged to the hot bins by gravity; It is composed of a hot elevator (Hot Elevator) for conveying the heating aggregate discharged from the rotary dryer up to the hot screen.

In the middle of moving the aggregate from the rotary dryer to the hot elevator, the chute should 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 (Hot Elevator) is preferably manufactured in a bucket conveyor type as a transport device for lifting up the hot aggregate from the dryer to the hot screen to sift the heated aggregate to store in the hot bin.

As the asphalt mixture has a 2.36mm separation between coarse aggregate and fine aggregate in the particle size, it is preferable to install a mesh at the bottom of the asphalt mixture where the aggregate engagement is important, such as SMA pavement. It is preferable to install the hot screen so that the coarse aggregate is 9.5mm, 13.2mm, 26.5mm, etc., so as to control the mm, and the aggregate of the corresponding size is suitably stored in the hot bin.

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 up to the asphalt mixture for the surface layer and asphalt mixture for the base layer.

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

Since the overflow of aggregate often occurs when producing the asphalt mixture, an overflow aggregate storage bin of sufficient size to separately store the aggregate having overflowed from the hot bin and the aggregate separated into oversize should be installed. The size of the flow aggregate storage bin is preferably such that it can be loaded at least 10% of the aggregate required for 1 hour.

The fourth step is a weighing process for measuring the heated and sorted aggregate, filler and recovery dust, and the input amount of the binder and pigment in the metering process unit.

As shown in FIG. 7, the weighing process apparatus unit includes an aggregate weighing tank for discharging and measuring the heating aggregate stored in the hot bin, a binder weighing tank for discharging and measuring the binder stored in the binder storage tank, and a filling material metering tank for measuring the filling material; And a collecting dust weighing tank for measuring the collecting dust and a pigment measuring 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 fifth step is a dust recovery process for collecting dust generated in the second, third and fourth steps and storing the dust in the dust bin.

As shown in FIG. 8, the dust recovery process unit part of the dust recovery process collects dust generated in the aggregate heating process, sorting storage process, and the metering process, and sends it to a mixing process to collect large particles. A dust collector, a bag filter type secondary dust collector for collecting fine particles in the exhaust air from the primary dust collector, a blower for generating a suction static pressure to the primary dust collector and the secondary dust collector, and a gas discharged from the exhaust fan. The dust is discharged between the dust collected from the dust collector and the dust collected from the secondary dust collector to the lower portion, the dust collected for storing the collected dust to be sent to the mixing process unit, and the dust collected from the dust collected to the dust collected. Consists of a recovery dust elevator to convey.

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 colored asphalt is carried out in the raw material storage process, aggregate heating process, sorting storage process, weighing process, mixing in order to satisfy 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 process, discharge process and dust recovery process and the detailed description is omitted in the present invention because it is a known technique.

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

The sixth step is the 6-1 step of mixing the first aggregate, the filling material and the dust in the mixer after mixing; 6-2 step of mixing the binder into the mixer and then mixing; The pigment is added to the mixer in the third step and then composed of 6-3 steps of mixing.

As shown in FIG. 9, 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.

The aggregate is mixed for 5 to 15 seconds as a step of mixing the 6-1 aggregate, the filler, and the dust after the first injection.

In step 6-2, the binder is added to the mixer in a second manner and mixed for 5 to 10 seconds.

In step 6-3, the pigment is added to the mixer in the third step and mixed for 30 to 40 seconds, and care should be taken not to overmix.

The seventh step is a process of temporarily storing and discharging the colored ascon produced in the sixth step in order to transport the colored ascon.

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 eighth step is a loading and moving step of loading the colored ascon discharged in the seventh step onto a transport vehicle and moving to the site.

Color ascon hauling vehicles should be packed with insulating seats in the lading box, and the number of hauling vehicles should be properly adjusted according to the distance of the conveying distance so that the ascon laying quantity and the conveying quantity can be harmonized.

The ascon field 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 ascon.

Carrying of colored asphalt should be carried by a vehicle with a clean and smooth cargo box. 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 ninth step is a construction preparation step for inspecting and surface-treating the pavement surface in which the color ascon is constructed, and if there is a damaged part by inspecting the existing pavement surface (concrete, ascon, crushed stone base, etc.) before the high-performance color mixture is laid. This must be repaired and dust and other impurities on the surface removed completely.

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 tenth step, when installing the roadbed crushed layer and the color 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 ascone, 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 eleventh step is to install the color ascone of 150 ~ 175 ° C on the road with a width and thickness determined by the asphalt paver (Asphalt Paver).

Asphalt Paver is equipped with a hopper, a screw, an adjustment screed and a tamper that can lay the colored ascon flat and should be able to adjust the working speed according to the supply amount of the colored ascon.

In a heat-mix process, it is most important that the mixture be completed before it is dished out.

Laying is done by supplemental asphalt paver, but sometimes by manpower in confined spaces or connections where equipment cannot be used, curved sections with very small radius of curvature, and small construction.

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.

Asphalt paver laying by the finisher should be installed to ensure sufficient construction width, laying thickness and flatness with the construction system according to the finisher's performance or site conditions.

When the color ascon laying is completed, observe the surface of the laying before compacting it with a roller.

(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) Color ascons are 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 twelfth step is a compacting step of compacting the installed color ascon with a roller.

Step 12-1 includes step 12-1, which is a first compaction step of compacting twice (one reciprocation) with an 8 ton or more Mecadum Roller; Step 12-2, 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 12-3 steps, which is a finishing compaction step that is carried out four times (two round trips) to correct unevenness 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 12-1 should be a working speed of 2-3km / hr mixture temperature 140 ℃, and the temperature is carried out as high as possible to the extent that the mixture does not cause displacement or hair crack (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 step 12-2 should be a working speed of 2-3km / hr mixture temperature 120 ~ 140 ℃, and continue to be sufficiently carried out after the first compaction until a sufficient compaction degree is obtained.

The third compaction step of step 12-3 should be a working speed of 2-3km / hr mixture temperature 90 ℃, it is carried out 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 thirteenth step is a joint operation step of performing a joint operation where a joint is required in the longitudinal or transverse construction joint or a structure connecting portion.

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 14th step is a finishing step of checking and finishing the construction of the color ascon by measuring the flatness and the thickness.

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 fifteenth 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.

A surface coating treatment step may be added before the fifteenth 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 method of manufacturing and constructing color ascon of the present invention, various colors can be selected, excellent color development, excellent durability of packaging under various and harsh natural environments, and do not discolor to maintain beautiful colors semi-permanently. It is possible to manufacture colored ascone according to the specification of heated asphalt mixture, and the storage heating and sorting of aggregate can use the conventional heat-mixed plant device as it is, so that the initial investment of manufacturing equipment can be reduced, and the appropriate construction method There is an advantage that can be installed anywhere where color pavement such as bicycle path, park, general sidewalk, light traffic road and bus lane.

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 (2)

In the manufacturing and construction method of color ascon to improve aesthetics and harmonize with the surrounding environment by producing various colors,
The color ascon is 5 to 8 parts by weight of a transparent or semi-transparent binder that combines the aggregate mixture to 100 parts by weight of aggregates composed of 94 to 99% by weight of aggregates and 1 to 6% by weight of fillers, and includes a modifier and a collar. It is made to include 0.1 to 2 parts by weight of the pigment for betting,
A first step of storing a raw material and a primary selected aggregate in a raw material storage unit according to a particle size distribution;
A second step of transferring the aggregate stored in the raw material storage unit to a heating device, the aggregate heating process of directly heating the aggregate to 170 to 190 ° C. with a flame from burning LPG or heavy oil in a burner;
A third step of sorting and storing process of sorting and storing the heated aggregate on a hot screen;
A fourth step of measuring a heated and sorted aggregate, a filling material, and a recovered dust, and measuring an input amount of the binder and a pigment in a measuring process unit;
A fifth step, which is a dust recovery step of collecting dust generated in the second, third and fourth steps and storing the dust in a dust bin;
A sixth step of mixing the aggregate, the filling material, and the dust, the binder and the pigment measured in the mixer in the fourth step while maintaining the temperature at 170 to 185 ° C. in the mixer;
A seventh step of temporarily discharging and discharging the colored ascon produced in the sixth step to transport the colored ascon into a vehicle;
An eighth step of loading and moving the colored ascon discharged in the seventh step onto a transport vehicle and moving to a site;
A ninth step of preparing and inspecting the pavement surface on which the color 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 colored ascone, and when laying the colored ascon on the layered ascon layer, the adhesion between the layered ascon layer and the colored ascone. A tenth step of applying the tack coat material with an asphalt distributor to increase the weight;
An eleventh step of installing the color ascone at 150 to 175 ° C. on the road with a width and a thickness determined by an asphalt paver;
A twelfth step of compacting the installed colored ascon with a roller;
A thirteenth step of joining the joints in the longitudinal and transverse directions or where the joints of the structure are required;
A fourteenth step, which is a finishing step of checking and finishing the color ascon construction by measuring the flatness and the thickness;
It is manufactured and constructed as a fifteenth step of opening traffic when the temperature of the color ascon layer is below 60 ° C. or the surface temperature of the pavement layer is below 40 ° C.
The sixth step is the 6-1 step of mixing the first aggregate, the filling material and the dust in the mixer after mixing;
6-2 step of mixing the binder into the mixer and then mixing;
It consists of a 6-3 step of mixing the pigment into the mixer in the third and then mixing,
Step 12-1 includes step 12-1, which is a first compaction step of compacting twice (one reciprocation) with an 8 ton or more Mecadum Roller;
Step 12-2, 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 12-3 steps, which is a finishing compaction step that is performed 4 times (two round trips) to fix unevenness or roller marks with a biaxial type Tendum Roller of 6 tons or more,
The aggregate is composed of coarse aggregate of more than 2.36mm and fine aggregate less than 2.36mm as a new aggregate,
The coarse aggregate uses crushed crushed stone and has a specific gravity of 2.5 or more, an absorption amount of 3.0% or less, a wear loss of 35% or less, a stability test loss of sodium sulfate of 12 or less, a coating area of 95% or more, a flat and a long piece Have a quality of 20% or less
The fine aggregate uses natural sand, crushed sand obtained by breaking gravel or a mixture of natural and crushed sand,
Particle size of the aggregate is 26.5mm aggregate 100%, 19mm aggregate 95 ~ 100%, 13.2mm aggregate 78 ~ 90%, 4.75mm aggregate 45 ~ 65%, 2.36mm aggregate 35 ~ 50%, 0.6mm aggregate is 18 ~ 30%, 0.3mm aggregate is 10 ~ 21%, 0.15mm aggregate is 6 ~ 16%, 0.075mm aggregate is 4 ~ 8%. 13.2mm aggregates 95-100%, 4.75mm aggregates 55-70%, 2.36mm aggregates 35-50%, 0.6mm aggregates 18-30%, 0.3mm aggregates 10-21%, 0.15mm aggregates 6 ~ 16%, 0.075mm aggregate is distributed in the second type consisting of 4 to 8%,
The filling material should be 1.0% or less of water, using limestone powder without fine grains, and having a sintering 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 , Evaporation loss less than 0.5%, thin film heating more than 75%, solubility (TCE soluble content) more than 99%, the appearance is transparent and homogeneous quality, and should be heated to 150 ℃ or more into the mixer,
The pigment is an inorganic pigment which is a powder or liquid and does not contain heavy metals, and should not be discolored or altered even at a high temperature of 140 ° C. or higher. 40 ~ 50 ℃ red and green 60 ~ 100 ℃, elongation (5 cm / min based on 15 ℃) 100 cm or more, thin film heating penetration change rate of 50% or more characterized in that the manufacturing method and construction method
The method of claim 1,
The binder is composed of 45 to 60% by weight of styrene-butadiene copolymer, 20 to 40% by weight of low density polystyrene as a modifier, 5 to 15% by weight of calcium carbonate as a diluent, and 5 to 10% by weight of aromatic process oil as a dispersant. ,
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 cold bins classified by particle size,
The binder storage unit is composed of a binder storage tank, a binder heating heater for maintaining the binder at a recognized temperature, and a transfer pump for sending the binder to the binder weighing tank, wherein the binder storage tank can maintain a constant temperature before the production of color ascon Binder temperature must be controlled,
The heating device of the second stage uses a direct rotary 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 hot screen of the third step uses a horizontal type of vibrating screen type,
The fourth step of the weighing process unit is an aggregate weighing tank for discharging and measuring the heating aggregate stored in the hot bin, a binder weighing tank for discharging and measuring the binder stored in the binder storage tank, and a filler measuring tank for measuring the filling material stored between the filling material; It consists of a recovery dust weighing tank for measuring the recovery dust stored in the recovery dust bin, and a pigment weighing tank for measuring the amount of pigment stored in the pigment storage tank,
The mixer of the sixth 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, The upper and lower portions of the main body has a structure in which the inlet gate and the discharge gate are formed,
In the tenth step, the prime coating 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,
Asphalt paver of the eleventh step is equipped with a hopper, screw, adjusting screed and tamper that can lay the color ascon evenly, it is possible to adjust the working speed according to the supply amount of color ascon Color asphalt construction and construction method

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