KR102146195B1 - The recycling asphalt mixture for reforming - Google Patents

Abstract

Provided is a modified recycled asphalt composition using waste extraction-molded cement to prevent cost increase due to use of a large amount of additives and modifiers. According to the present invention, the recycled asphalt composition comprises cyclic aggregate with large, middle, and small diameters, a filler, a binder, emulsified asphalt, a recycling agent, and a mixed solution. Waste extraction-molded cement aggregate, which is formed by pulverizing waste extraction-molded cement made through first curing and second curing at a particle size of 8 mm or less, is applied as the cyclic aggregate of the small particle size of the cyclic aggregate, wherein the waste extraction-molded cement comprises 5-20 parts by weight of cement and 75-93 parts by weight of fly ash, and 3-5 parts by weight of the waste extraction-molded cement aggregate are included in the cyclic aggregate with respect to the total weight of the cyclic aggregate. The filler and the binder are applied to waste extraction-molded cement powder which is made by pulverizing waste extraction-molded cement made through first curing and second curing, wherein the waste extraction-molded cement comprises 5-20 parts by weight of cement, 75-93 parts by weight of fly ash, and 2 parts by weight of artificial fiber applying polypropylene fiber and 6-8 parts by weight of the waste extraction-molded cement powder are included in the cyclic aggregate with respect to the total weight of the cyclic aggregate.

Description

The recycling asphalt mixture for reforming using waste extrusion cement

The present invention relates to a regenerated asphalt composition, and more particularly, to a modified regenerated asphalt composition using waste extrusion cement.

As is well known, the renovation of old roads and the demolition of old housing complexes are continuing. In addition, it is more difficult to develop recycling methods for recycled aggregates obtained by pulverizing waste asphalt concrete or/and cement concrete, as it is becoming more difficult as time passes for the permission of seoksan to collect crushed stone aggregate for the purpose of protecting the natural environment. The necessary social environment is being created.

In general, room temperature circulating ascon is composed of new crushed stone aggregate, waste asphalt concrete and recycled aggregate obtained by crushing waste cement concrete, filling material, emulsified asphalt, and recycled additives.

Republic of Korea Patent Registration No. 10-0599492 discloses a composition for semi-rigid packaging that does not use emulsified asphalt and uses waste ascon containing a volume expander, an indexing agent, a curing accelerator and a fluid admixture. Since sufficient initial hardening does not occur according to the use of the lamp, there may be a problem in construction in winter, and there may be a concern that the durability or elasticity of the asphalt may be deteriorated.

In addition, Korean Patent Laid-Open Publication No. 10-2011-26038 contains at least one of a softener, an elastic body, a thickener, a peeling inhibitor, an inorganic powder and a short fiber as a regeneration modifier, and at least one of a hydrating agent, a wax and a foaming agent as a medium temperature additive. Although a composition of temperature-controlled modified regenerated ascon is disclosed, the manufacturing process is complicated, and the problems of durability and moisture sensitivity have not been considered.

Korean Patent Registration No. 10-0867097 discloses anionic emulsified asphalt and asphalt concrete for pavement containing acrylic polymer in order to fill the voids by forming a network structure between aggregate and aggregate, and to increase adhesion and tensile strength. No. 10-0946588 discloses a mixture of recycled asphalt concrete containing waste ascon, new aggregate, filling material, emulsified asphalt and recycled additives, but the recycled additives include heavy paraffin distillate, bitumen and mineral pitch ( Mineral pitch), etc., are used, so there is a concern that the bonding strength between recycled aggregate and cement may decrease due to non-heating.

On the other hand, according to the KSF3501 asphalt pavement filler standard, the filler is stipulated as limestone powder, Portland cement, slaked lime, fly ash, recovered dust, electric furnace steelmaking dust, casting dust, various incineration ash, and other suitable mineral powders. Therefore, in general, industrial sites are using Type 1 Portland Cement as a filling material for normal temperature circulation asphalt pavement in order to make up for the lack of rigidity and durability, which is a problem of the existing technology while satisfying the related KS standard.

In addition, Republic of Korea Patent Registration Nos. 10-1242097, 10-1847179, 10-1487180, etc. disclose the filling material and binder technology to replace Portland cement, which is similar to the color of asphalt, such as TDF incineration material and heavy oil mixed incineration material. It is presented as a technical characteristic. As such, the prior technologies of room temperature circulation ascon presented so far are technologies to supplement the physical performance of the existing black asphalt composition, and in the case of the existing room temperature circulation ascon, since cement is used as a binder and filler, it is installed in cold weather in winter. If it is, the hydration reaction of the cement may be delayed, resulting in initial freezing. Even in normal cases, if the construction is carried out at a site with a lot of moisture, the moisture contained in the mixture may become too much and the predetermined purpose may not be achieved.

In addition, Korean Patent Laid-Open Publication No. 2000-0030064 discloses a method of manufacturing a high-performance modified recycled asphalt mixture for road pavement using fly ash and organic fibers, which are industrial by-products, without using cement to improve physical properties while limiting the amount of waste ascon. Are disclosed. However, there is a problem that the content of used waste ascon is low, mechanical properties are poor, or additional equipment and processes are required to mix different materials.

Thus, the present invention is invented to solve the general problems of the conventional recycled asphalt composition,

The problem to be solved by the present invention is to prevent an increase in cost due to the use of a large amount of additives and modifiers, and to reinforce the protection of natural aggregate resources and environmental protection by using the waste extrusion molding as recycled aggregate or filler and binder. At the same time, it is to provide a modified regenerated asphalt composition using waste extruded cement that has the strength, hardness, viscosity, stability, and flexibility of existing asphalt concrete.

Another problem to be solved by the present invention is that, without additionally using fly ash as a filling material separately with cement, waste extrusion moldings containing fly ash as a main component can be applied as recycled aggregate or filling material. It is to provide a modified recycled asphalt composition using waste extrusion cement that does not require equipment and processes.

Another problem to be solved by the present invention is the process of adding synthetic fibers or natural fibers separately by applying the waste extrusion mold including artificial fibers or carbon fibers as a binder as a filler and a binder, that is, an additional process for incorporating various other materials. It is to provide a modified recycled asphalt composition using waste extrusion cement that does not require equipment and processes.

As a specific means of the present invention for solving the above problems;

In a recycled asphalt composition comprising a recycled aggregate having a particle size of upper, middle, and lower, a filler and a binder, an emulsified asphalt, a regeneration additive, and a mixed solution,

The recycled aggregate contains waste extrusion-molded cement aggregate of 5 to 20 parts by weight of cement and 75 to 93 parts by weight of fly ash as the main raw materials, and crushed waste extrusion cement used as a construction material to a particle diameter of 8 mm or less. It is applied as a lower particle diameter recycled aggregate, and the waste extrusion-molded cement aggregate is included in 3 to 5 parts by weight based on the total weight of the recycled aggregate,

The filler and binder include 5 to 20 parts by weight of cement, 75 to 93 parts by weight of fly ash, and 2 parts by weight of man-made fiber to which polypropylene fiber is applied, and the first and second curing materials are used as construction materials. Reformed and regenerated using waste extrusion cement, characterized in that the pulverized waste extrusion cement crushed into pulverized powder is applied, wherein the pulverized waste extrusion cement is included in 6 to 8 parts by weight based on the total weight of the recycled aggregate. It has an asphalt composition.

In a preferred embodiment, the filler and the binder contain 5 to 20 parts by weight of cement, 75 to 93 parts by weight of fly ash, and 2 to 20 parts by weight of carbon fiber, and are manufactured for primary and secondary curing and used as a grounding member. The waste extrusion cement fine pulverized powder crushed into fine pulverized powder can be applied.

In a preferred embodiment, the filler and the binder may be a mixture of the pulverized waste extrusion cement used as a building material and the pulverized waste extrusion cement used as a grounding member in a ratio of 50:50.

The modified recycled asphalt composition using the waste extrusion cement according to the present invention can prevent an increase in cost due to the use of a large amount of additives and modifiers as the waste extrusion cement is applied to the lower particle diameter recycled aggregate, the filling material, and the binder.

In addition, by using the waste extrusion molding as recycled aggregate or filling material and binder, the protection of natural aggregate resources and environmental protection are reinforced, and at the same time, the modified and regenerated with the strength, hardness, viscosity, stability, and flexibility of existing asphalt concrete. Asphalt compositions can be provided.

In particular, the present invention does not additionally use fly ash as a filling material separately with cement, and can be applied as a recycled aggregate or filling material, which is a waste extrusion mold containing fly ash as a main component and containing artificial fibers. There is an effect of reducing manufacturing cost because additional equipment and processes are not required.

Hereinafter, a preferred embodiment of the present invention will be described in detail.

<First Example>

The modified regenerated asphalt composition using the waste extrusion cement according to the first embodiment of the present invention includes a recycled aggregate including waste extrusion cement aggregate, a pulverized waste extrusion cement applied as a filler and a binder, emulsified asphalt, and a recycled additive. And a mixed solution.

Here, in the first embodiment of the present invention, in the waste extrusion cement, the extruded cement used as a building material, for example, the interior and exterior materials of the building (including linings, moldings, and double floor materials) and soundproof panels and soundproof walls of the soundproof walls, and The waste extrusion cement used for the deck board of the prefabricated deck structure is applied. At this time, the waste extrusion cement is manufactured by including cement, natural fiber, artificial fiber, and thickener, and includes fly ash as the main raw material.

Looking at the manufacturing process, a step of measuring and mixing a composition consisting of cement, natural fiber, artificial fiber, thickener and water is performed. At this time, in the present invention, fly ash is added as a main material in the step of measuring and mixing the composition. Thereafter, the extrusion molding and cutting steps of the mixture are performed, and the first curing step of the extrudate is performed. In the first curing step, the extrudate is first cured at a temperature of 60°C to 75°C for 10 to 18 hours. do. Thereafter, a second curing step is performed in the autoclave of the first cured extrudate, in which case the first curing step is performed for 10 to 18 hours in a temperature of 150° C. to 180° C. and a pressure environment of 80 kg/cm ² to 10 kg/cm ² . It is prepared by secondary curing the cured extrudate to be ceramic.

Such extrusion-molded cement has an absorption rate of 20 (g/cm3) or less, a length change rate of 18% or less for absorption, a flexural strength of 12 (N/mm ² ) or more, an allowable displacement (elastic displacement) of 50 (mm) or less, and an allowable displacement (permanent). Residual displacement) It has a property value of less than LA/500.

The recycled aggregate is sieved by passing through a sieve of KSF2572 standard 008, 015, 03, 06 and 12, 25, 5, 10, 13, 15, 20, 25, 30, 40, 50, 60, 80, 100mm. Waste ascon/waste concrete recycled aggregate obtained by classifying waste ascon or waste concrete according to particle size is employed. In such recycled aggregate made of waste ascon/waste concrete, the particle diameter distribution of the recycled aggregate is distributed in the upper, middle, and lower particle diameters, and the upper particle diameter is given a particle diameter of 25 to 13 mm and 20 to 70 parts by weight of the total weight of the recycled aggregate. A weight part is applied, and a particle diameter of 13 to 8 mm is given for the median particle diameter, and 20 to 50 parts by weight is applied to the total weight part of the recycled aggregate. In addition, the recycled aggregate made of waste ascon/waste concrete applied to the upper and medium particle diameters may be used alone or in combination with waste ascon or waste concrete.

At this time, in the recycled aggregate, the lower particle diameter recycled aggregate is a waste extrusion-molded cement aggregate made of 5 to 20 parts by weight of cement and 75 to 93 parts by weight of fly ash as the main raw materials to a particle diameter of 8 mm or less. The waste extrusion-molded cement aggregate can be obtained by crushing the waste extrusion-molded cement applied to the building material to a particle diameter of 8 mm or less as described above, and is included in 3 to 5 parts by weight based on the total weight of the recycled aggregate. Therefore, the waste extrusion molded cement aggregate applied as a lower particle diameter recycled aggregate as described above has a property of low rigidity against the recycled aggregate (upper particle diameter, medium particle diameter) made of waste ascon/waste concrete, so the load of the upper layer is transmitted to the lower side. Performs the function of

The filler and the binder are crushed waste extrusion cement containing 5 to 20 parts by weight of cement, 75 to 93 parts by weight of fly ash, and 2 parts by weight of man-made fiber to which polypropylene fiber (PP) or carbon fiber is applied. The waste extrusion molding cement fine powder is applied. Such waste extrusion-molded cement fine powder is included in 6 to 8 parts by weight based on the total weight of the recycled aggregate.

At this time, the waste extrusion molded cement pulverized powder applied as a filler and a binder as described above includes 5 to 20 parts by weight of cement, 75 to 93 parts by weight of fly ash, and 2 parts by weight of an artificial fiber to which polypropylene fiber (PP) is applied. It can be obtained by crushing molded cement (waste extrusion molded cement used as a building material) into pulverized powder, so the properties of fly ash, that is, calcium hydroxide produced by hydration of cement, are consumed by the pozzolanic reaction of fly ash and are insoluble. As it changes into salt, acid resistance is improved, and the structure of recycled asphalt is made dense, and it has excellent advantages in terms of erosion resistance.

In addition, the cement may increase the bonding force between the aggregates and prevent plastic deformation of asphalt concrete from occurring.

In addition, the artificial fiber agent to which the polypropylene fiber (PP) is applied has various reinforcing functions to prevent cracking of recycled asphalt, improve impact resistance, and improve abrasion resistance. In other words, the artificial fiber to which polypropylene fiber (PP) is applied improves the mechanical performance and durability of recycled asphalt such as flow resistance, abrasion resistance, dynamic stability, crack resistance, etc. to improve plastic deformation (Rutting), pothole, and push. (Shoving, Corrugation), bleeding, wheel press marks, etc. In the long term, it minimizes the occurrence of fatigue cracks, low temperature cracks, joint cracks, abrasion, labeling and grid cracks.

Alternatively, in the first embodiment of the present invention, the waste extruded cement containing natural fiber may be crushed into fine pulverized powder and applied as a filler and a binder. In other words, the waste extruded cement applied as a filler and a binder can be applied to those containing natural fibers together with the aforementioned artificial fibers. At this time, the natural fiber is pulp, which is a material having little change in length according to temperature variation and excellent in water resistance, fire resistance, and sound insulation, and is included in 2 parts by weight based on the total weight of the waste extrusion cement.

Here, when the waste extrusion-molded cement pulverized powder is applied as a filler and a binder as in the present invention, there is an advantage that the process of mixing cement, fly ash, and artificial fiber as in the prior art into each and each recycled aggregate can be omitted. . In other words, since the pulverized waste extruded cement contains cement, fly ash and artificial fibers, these components are separately added to each of the recycled aggregates only by adding the crushed waste extruded cement to the recycled aggregate. Since operations can be omitted, additional equipment and processes are not required to mix different materials. In addition, since it is possible to recycle waste extrusion cement that is classified as industrial waste and is mainly disposed of by landfill, there is an advantage of reducing landfill cost and cost by recycling.

The emulsified asphalt, also known as an asphalt emulsion, refers to asphalt in which an emulsifier is added to maintain a dispersed state without causing a phase separation phenomenon in water. At this time, the emulsifier is usually a surfactant. If it has a positive charge (+), it is called a cation-based emulsified asphalt, and if it has a negative charge (-), it is called an anion-based emulsified asphalt. As such emulsified asphalt is in contact with the surface of the recycled aggregate, the asphalt and water are separated and only the asphalt adheres to the surface of the recycled aggregate. It forms a film on the surface of the aggregate and adheres well. In addition, the use of emulsified asphalt is economical because the construction period is shortened, and the construction equipment is simple, so it is advantageous for paving narrow roads, and there are advantages in that there is little risk of fire, burns, pollution, etc.

Therefore, the emulsified asphalt performs a function of emulsifying the existing asphalt attached to the recycled aggregate made of waste ascon and making it possible to attach again when mixing and laying. It is preferable that the emulsified asphalt is contained in an amount of 01 to 7 parts by weight based on 100 parts by weight of the recycled aggregate. If it is contained less than 01 parts by weight, the ability to emulsify the old asphalt attached to the recycled aggregate will be insufficient, and if it contains more than 7 parts by weight, the amount of asphalt compared to the recycled aggregate will increase, improving the fluidity and workability of the mixture, but It becomes too easy to flow and the rigidity and durability of the package decrease.

The regenerative additive and the mixed solution function as an additive, that is, to improve general physical properties by making the emulsified asphalt well compatible with the recycled aggregate. It is preferable that the regeneration additive and the mixed solution contain 1 to 7 parts by weight based on 100 parts by weight of the recycled aggregate. Regeneration additives (generally maleic acid, sodium carboxylcellulose, water glass, etc.) and mixed liquids (water mixed with acrylic resin polymer or SBR resin polymer) are too small to support the role of emulsified asphalt if it is contained in less than 1 part by weight. If more than 7 parts by weight is included, the initial strength may decrease because too much of the amount of water used as the mixture is contained in the mixture.

Thus, the manufacturing process of the modified regenerated asphalt composition according to the first embodiment of the present invention will be described.

Collected waste ascon/waste concrete is crushed to select 20 to 70 parts by weight of recycled aggregate with a top particle diameter of 13 to 25 mm, and 20 to 50 parts by weight of recycled aggregate with a medium particle diameter of 8 to 13 mm, and crush the waste extrusion cement to circulate less than 8 mm Select 3 to 5 parts by weight of aggregate. 6 to 7 parts by weight of pulverized waste extrusion cement applied as a filler and binder, 1 to 3 parts by weight of asphalt emulsion, 1 to 3 parts by weight of additives per 100 parts by weight of manufactured waste ascon/waste concrete and waste extrusion cement recycled aggregate , After preparing a composition of 1 to 6 parts by weight of a mixture consisting of a latex-based SBR polymer or an acrylic resin polymer and water, added to an omnimixer for a uniform concentration and particle size distribution, and mixed to prepare a recycled asphalt. The detailed composition is shown in Table 1.

division

Parts by weight
Recycled aggregate
(Including waste extrusion cement aggregate)

Upper mouth diameter 20~70
Medium particle diameter 20~50
Lower mouth diameter 3~5
Filling material and binder
(Waste extrusion cement fine powder)


6~7
Asphalt emulsion
1~3

additive
1~3

Mixed liquid
1-6

Next, in accordance with KS F 2327, the marshall stability and flow value of the recycled asphalt of the present invention, in which the waste extruded cement was applied as a lower particle diameter recycled aggregate, a filler, and a binder were measured. At this time, the comparative example was different from the preferred formulation of the above example, and used as a comparative sample by applying a commercially available one type of ordinary portland cement as a filler and a binder, and the marshall stability and flow value were measured according to KS F 2327. Detailed measurements are listed in Table 2.

division Weight(Kg) Thickness(cm) Marshall stability (Kn) Flow value (1/100cm) Example 11.569 6.46 7.933 30.16 Comparative example 11554 6.38 5.239 33.25

Explaining the specific measurement method, the preparation and quantity of the specimen and the sample collection of the mixture were in accordance with KS F 2350, and the specimen was manufactured with Marshall Compactor, and after curing for 48 hours in an oven at 60 ±5 ℃, After oven curing, the specimens were left in the room at room temperature for 2-3 hours and then demolded. The specimen demolded from the mold was placed in an air bath at 25±1° C. for testing and maintained for 2 hours.

As can be seen from Table 2, the examples of the present invention exhibited higher marshall stability compared to the comparative examples, and the flow value was also lower.

In addition, the results of quality tests and inspection results for the modified regenerated asphalt composition according to the first embodiment of the present invention are shown in Table 3.

Test and inspection items unit result Saturation % 69 Porosity % 5.3 3 Aggregate film ratio % More than 95

As shown in Table 3, the results were derived with higher levels of saturation, porosity, and aggregate film ratio than that of general asphalt concrete. In particular, it can be seen that it is suitable for use as a general road pavement material, showing a very good result in porosity, which is a particle of waste extrusion cement applied as a lower particle diameter recycled aggregate and waste extrusion cement applied as a filler and a binder. It is known that it serves to fill the gaps between the waste ascon recycled aggregate and the recycled concrete recycled aggregate, and when it is made of the above composition, it is possible to obtain the effect of improving the stability, temperature sensitivity, durability, etc. of the mixture and reducing the porosity. I can. In addition, the effect of reducing the porosity can solve the problem of consuming a large amount of emulsified asphalt and cement to mix the waste ascon recycled aggregate and the waste concrete recycled aggregate.

Therefore, the present invention protects the depleted natural aggregate by using only waste ascon, waste concrete, cement, and waste extrusion cement without using natural aggregate, and is eco-friendly by using recycled aggregate, especially waste extrusion cement. To have.

<Second Example>

In the recycled asphalt composition according to the second embodiment of the present invention, waste extrusion cement used as a ground member is applied to a filler or a binder. In other words, in the second embodiment of the present invention, in the waste extrusion molded cement, the waste extrusion used as a grounding member installed and used in the ground so as to be connected to the ground wire drawn out from the electric pole to the ground or the ground wire drawn out from the grounding facility of the building. Apply forming cement. In this way, the waste extrusion-molded cement used as the grounding member includes cement, conductive material, fly ash, and thickener, but is manufactured by including fly ash as the main raw material.

At this time, the waste extrusion molded cement for the grounding member includes 5 to 20 parts by weight of cement, 75 to 93 parts by weight of fly ash, and 2 to 20 parts by weight of carbon fiber, and is manufactured by first and second curing. Accordingly, fly ash and cement exhibit the same actions and effects as in the first embodiment described above.

Here, it is preferable to use carbon fibers having a length of 5 to 10 mm, and such carbon fibers are fibers made by heating and carbonizing organic fibers in an inert gas, and are lighter than metal but have strength and elasticity compared to metal. It is known to have excellent heat resistance, impact resistance, and corrosion resistance, and serves as a binder that improves the compressive strength and improves the blendability between materials.

Therefore, in the recycled asphalt composition according to the second embodiment of the present invention, waste extrusion cement used as a grounding member is crushed into pulverized powder and applied as a filler or a binder, so that waste ascon recycled aggregate with large particles and recycled concrete recycled aggregate It serves to fill the gap of the mixture, and improves the stability, temperature sensitivity, durability, etc. of the mixture, and can obtain the effect of reducing the porosity. In addition, it is eco-friendly by using the waste extrusion cement used as a grounding member.

In addition, as in the second embodiment of the present invention, when the pulverized waste extruded cement used as a grounding member as a filler and a binder is applied, cement, fly ash, and carbon fibers are mixed with each of the recycled aggregates. There is an advantage in that the process of doing so can be omitted. In other words, since the pulverized waste extruded cement contains cement, fly ash and carbon fiber, these components are separately added to each and each recycled aggregate only by adding the pulverized waste extruded cement to the recycled aggregate. Since operations can be omitted, additional equipment and processes are not required to mix different materials. In addition, since it is possible to recycle waste extrusion cement that is classified as industrial waste and is mainly disposed of by landfill, there is an advantage of reducing landfill cost and cost by recycling.

On the other hand, the waste extrusion cement used as the main material of the above fly ash and the waste extrusion cement used as the grounding member are mixed in a ratio of 50:50 when used as a lower particle diameter recycled aggregate or as a filler and a binder. Can be used. In other words, waste extrusion cement containing fly ash, cement, and man-made fibers and waste extrusion cement containing fly ash, cement, and carbon fiber can be mixed in a ratio of 50:50. According to this, various reinforcing functions and a binder function that improves blendability between materials can be obtained at the same time by including the artificial fibers and carbon fibers at the same time.

<Third Example>

In the recycled asphalt composition according to the third embodiment of the present invention, waste extrusion-molded cement aggregate, which is the lower particle diameter recycled aggregate, and waste color extruded cement as the filler and binder are applied. Such waste color extrusion cement includes cement, inorganic raw materials, minerals and artificial fibers, thickeners and inorganic pigments, and the inorganic raw materials include silica sand, wollastonite, sand 6, and the mineral and artificial fibers , It contains either pulp or artificial fibers.

At this time, the inorganic pigment is made of any one of iron oxide, synthetic pigment iron oxide, mica, and pearlite, and is added in an amount of 15 to 30 parts by weight based on the total weight of the waste color extrusion cement composition.

Accordingly, the recycled asphalt composition according to the third embodiment of the present invention crushes the waste color extruded cement to a particle diameter of 8 mm or less in order to apply the waste extruded cement aggregate as the lower particle diameter circulating aggregate and the filler and the binder. Or crushed with fine crushed powder.

Therefore, the recycled asphalt composition according to the third embodiment of the present invention can provide various color development effects, and thus the use limited to the existing black pavement for the base layer can be used for various landscape pavement purposes.

Meanwhile, the above-described embodiments are merely specific examples so that those skilled in the art can easily understand and implement the present invention, and are not intended to limit the scope of the present invention. Therefore, it should be noted that various modifications or changes can be made to the above-described embodiments. In principle, the scope of the present invention is determined by the claims to be described later.

Claims (3)

Containing recycled aggregate having particle diameters of upper, middle, and lower, fillers and binders, emulsified asphalt, recycled additives, and mixed solutions, the recycled aggregate contains 5 to 20 parts by weight of cement and 75 to 93 parts by weight of fly ash as main raw materials. Apply the waste extrusion-molded cement aggregate obtained by crushing the primary curing-produced waste extrusion cement to a particle diameter of 8 mm or less as a lower particle diameter recycled aggregate, and the waste extrusion-molded cement aggregate is included in an amount of 3 to 5 parts by weight based on the total weight of the recycled aggregate. The filling material and the binder include 5 to 20 parts by weight of cement, 75 to 93 parts by weight of fly ash, and 2 parts by weight of man-made fiber to which polypropylene fiber is applied, and the first and second curing materials are used as construction materials. Reformed regenerated asphalt composition using waste extrusion-molded cement containing 6 to 8 parts by weight based on the total weight of the recycled aggregate by applying the waste extrusion-molded cement crushed cement into pulverized powder In,
The filler and binder contain 5 to 20 parts by weight of cement, 75 to 93 parts by weight of fly ash, and 2 to 20 parts by weight of carbon fiber, and are manufactured for the first and second curing, and the waste extrusion cement used as a grounding member is crushed into pulverized powder. A modified recycled asphalt composition using waste extrusion cement, characterized in that one waste extrusion cement fine powder is applied. delete delete