KR20200042578A - High­level mastic asphalt concrete construction materials and their construction methods improved CO2 generation reduction and construction by sis - Google Patents

Abstract

The present invention relates to a waterproof performance-improved goose asphalt concrete composition for pavement and a construction method thereof. The composition contains: 10 to 20 parts by weight of styrene isoprene styrene; 5 to 15 parts by weight of petroleum resin; 500 to 2,000 parts by weight of aggregate; 30 to 150 parts by weight of fine powder aggregate; and 0.1 to 2 parts by weight of cellulose fiber, with resepct to 100 parts by weight of asphalt. The waterproof performance-improved goose asphalt concrete composition for pavement of the present invention contains the fine powder aggregate having an improved aggregate particle size and SIS, and thus direct on-site formulation and construction are possible and transport construction can be facilitated. The composition has high cohesion and bonding forces, and thus is excellent in waterproofness, durability, and resistance to plastic deformation, aging, and/or peeling. The composition has a PG grade of 82 to 34, prevents infiltrating water and potholes, and facilitates concrete pouring at a low cost.

Description

High-grade polymer mastic asphalt concrete composition and its construction method improved CO2 generation reduction and construction by sis by using SIS to improve CO2 emission reduction and workability

The present invention relates to a paving goose asphalt concrete composition and a construction method thereof for improving waterproof performance, including fine powder aggregate of SIS and improved aggregate particle size, and more specifically, SIS and improved aggregate particle size for improving the properties of asphalt concrete. It relates to a goose asphalt concrete composition for pavement having a PG grade performance of high grade (PG 82-34), including a fine powder aggregate, and improved crack resistance and adhesion, and waterproof performance.

In general, the conventional heating asphalt mixture, which was mainly used for pavement, cannot be installed by the cold-cold construction method, which is applied at sub-zero temperatures in winter, and also in the case of changes in the summer or temperature and load. rutting phenomenon), irregularities in the longitudinal section, corrugation phenomenon, and leveling phenomenon repeatedly occur, causing road cracks, port holes, delamination and separation of the road, thereby reducing road life.

Therefore, on average every 4-5 years, repacking, overlaying, and repairs were repeated repeatedly, which acted as a major factor in increasing the budget for maintenance each year, rather than the pavement budget for new roads in the country.

In order to overcome this problem, a goose asphalt mixture having excellent impermeability, durability, abrasion resistance, impact resistance, flexibility, slip resistance, and adhesiveness has been developed in place of the conventional heated asphalt mixture.

Goose asphalt mixture, also called asphalt coule, is a special asphalt pavement, developed in France and referred to as goose asphalt in Germany and Japan, asphalt mastic or mastic asphalt in the United Kingdom and the United States.

As described above, the goose asphalt mixture has various advantages compared to the conventional heated asphalt mixture, and compaction is unnecessary in the construction, so it is installed by a workforce plastering method or a professional finisher.

The following is a description of a conventional method for constructing such a goose asphalt mixture. Goose asphalt mixture is produced using a mechanical forced mixing method at a high temperature (170 ° C to 250 ° C) of a mixed solution, aggregate, sand, and powder mixed in an appropriate ratio, wherein the weight of the mixed solution is 15 to 34% of the total weight of the mixture. It occupies the degree, and sand, aggregate, and stone powder account for 85 to 66% of the total weight of the mixture.

The mixed solution mixed with the goose asphalt mixture has a high bonding strength, durability and waterproofness that can overcome all disadvantages caused by temperature or load change, unlike the conventional heated asphalt solution.

In particular, when a large amount of the mixture is mixed and heated and mixed at a high temperature, the mixture is excellent in fluidity as lava flowing out of a volcano flows and can be integrated into a packaging layer without performing a compaction process as it is naturally cooled.

When the above-described goose asphalt mixture is to be produced and constructed directly in the field, materials such as a mixed solution, aggregate, sand, and powder and a forced heating mixer, a mixed liquid quantitative supply device, and a heater for heating aggregate and sand, stone, etc. It requires a supply device to supply, a mixture heating device, a fuel supply device, an electric and power supply device, a quality control device to comprehensively control all of them, other equipment and tools, and miscellaneous materials.

As described above, the asphalt pavement sometimes causes a serious driving problem due to plastic deformation occurring along the driving track before 5 years after construction, or even if there is no plastic deformation problem, the pavement material gradually ages with the passage of time and eventually There is a problem that must be periodically maintained by generating a severe crack, as an example of such a repair method, Republic of Korea Patent Registration No. 0880030, 60 to 80% by weight of asphalt cement; 15 to 35% by weight of vegetable oil; and, asphalt pavement composition for urgent repair of road pavement made of a binder characterized in that it contains alapatic polyamides (Aliphatic polyamides).

Moreover, to date, a conventional method of overlaying a general modified asphalt, concrete composition or repair mortar of grades 2 to 3 (PG64-22.76-22) has been applied as a method of paving concrete structures, roads, and / or bridges.

However, the above-mentioned 2 to 3 grades of concrete, etc., have a short life, insufficient adhesion and flexibility, so that material separation and portholes frequently occur and waterproof performance is poor.

Accordingly, there is a need to develop a goose asphalt concrete composition for pavement, which minimizes plastic deformation and minimizes aging for a long period of time, and prevents easy peeling while improving waterproof performance, in order to minimize the cost of maintenance.

Korean Registered Patent No. 1030574 Korean Registered Patent No. 0585225 Korean Registered Patent No. 1513765 Korean Patent Registration No. 0880030

Therefore, the present invention has been devised to solve the above-described conventional problems, and according to an embodiment of the present invention, it is possible to directly mix and construct in the field, and has good waterproofness and durability, plastic deformation, aging and / or peeling. It is an object of the present invention to provide a goose asphalt concrete composition for paving with improved waterproof performance that can prevent penetration and portholes without easily occurring.

On the other hand, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly understood by those skilled in the art from the following description. Will be understandable.

The first object of the present invention, based on 100 parts by weight of asphalt, styrene isoprene styrene 10 to 20 parts by weight; Petroleum resin 5 to 15 parts by weight; Aggregate 500 to 2,000 parts by weight; 30 to 150 parts by weight of fine powder aggregate; And it can be achieved as a goose asphalt concrete composition for pavement comprising 0.1 to 2 parts by weight of cellulose fibers.

In addition, the aggregate is based on 100 parts by weight of asphalt, 5 to 200 parts by weight of aggregates having a particle size of 0.08 to 2.49 mm, 50 to 200 parts by weight of aggregates having a particle size of 2.5 to 5.99 mm, and aggregates of 6 to 9.99 mm, particle size of 45 to It may be characterized in that it comprises 400 parts by weight, aggregate particle size of 10 to 12.99mm 200 to 600 parts by weight, and aggregate size of 13mm aggregate 200 to 600 parts by weight.

In addition, the cellulose fiber may be characterized in that it comprises a natural cellulose fiber.

The second object of the present invention is a rearranging step of arranging a target surface to be constructed; As for 100 parts by weight of asphalt, 10 to 20 parts by weight of styrene isoprene, 5 to 15 parts by weight of petroleum resin, 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, and 0.1 to 2 parts by weight of cellulose fiber Mixing step of mixing goose asphalt concrete composition; A pouring step of transferring the mixed goose asphalt concrete composition to a moving means to pour onto a target surface where the cleaning step has been completed; Compaction step after the pouring step is completed; And a curing step of curing after the compaction step is completed.

The third object of the present invention is based on 100 parts by weight of asphalt on the target surface to be constructed, styrene isoprene styrene 10 to 20 parts by weight, petroleum resin 5 to 15 parts by weight, aggregate 500 to 2,000 parts by weight, fine powder aggregate 30 to 150 parts by weight A base layer manufacturing step of manufacturing a base layer by paving a goose asphalt concrete composition for pavement containing 0.1 to 2 parts by weight of cellulose fiber to a thickness of 2 to 8 cm; Based on 100 parts by weight of asphalt on the upper end of the base layer manufacturing step, styrene isoprene styrene 10 to 20 parts by weight, petroleum resin 5 to 15 parts by weight, aggregate 500 to 2,000 parts by weight, fine powder aggregate 30 to 150 parts by weight, and cellulose A surface layer manufacturing step of manufacturing a surface layer by paving a goose asphalt concrete composition for pavement containing 0.1 to 2 parts by weight of fibers to a thickness of 2 to 8 cm; After the surface layer manufacturing step is completed, compaction step of compacting the pouring surface; And it can be achieved as a construction method of the goose asphalt concrete composition for pavement comprising a curing step for curing the goose asphalt concrete composition for the compaction step is finished.

According to the pavement goose asphalt concrete composition for improving waterproof performance, including fine powder aggregates of SIS and improved aggregate particle size according to an embodiment of the present invention, it is possible to directly mix and construct in the field, so it is easy to carry and construct. PG 82-34 grade with high bonding strength, excellent water resistance, good durability, plastic deformation, aging and / or peeling easily, and preventing penetration and portholes, and easy installation at low cost It has the effect of being able to perform.

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. Will be able to.

The above objects, other objects, features and advantages of the present invention will be readily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed contents are thorough and complete and that the spirit of the present invention is sufficiently conveyed to those skilled in the art.

In the present specification, when a component is referred to as being on another component, it means that it may be formed directly on another component, or a third component may be interposed between them. In addition, in the drawings, the thickness of the components is exaggerated for effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for effective description of technical content. Therefore, the shape of the exemplary diagram may be modified by manufacturing technology and / or tolerance. Therefore, the embodiments of the present invention are not limited to the specific shapes shown, but also include changes in shapes generated according to the manufacturing process. For example, the area illustrated at a right angle may be rounded or have a shape having a predetermined curvature. Therefore, the regions illustrated in the drawings have properties, and the shapes of the regions illustrated in the drawings are for illustrating a specific shape of the region of the device and are not intended to limit the scope of the invention. In various embodiments of the present specification, terms such as first and second are used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another component. The embodiments described and illustrated herein also include its complementary embodiments.

The terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, the singular form also includes the plural form unless otherwise specified in the phrase. As used herein, 'comprises' and / or 'comprising' does not exclude the presence or addition of one or more other components.

In describing the specific embodiments below, various specific contents have been prepared to more specifically describe and understand the invention. However, a reader who has knowledge in this field to understand the present invention can recognize that it can be used without these various specific contents. It should be noted that, in some cases, parts that are commonly known in describing the invention and that are not significantly related to the invention are not described in order to prevent chaos from coming into account in explaining the present invention.

Hereinafter, the present invention will be described in detail.

In one aspect, the present invention is based on 100 parts by weight of asphalt, styrene isoprene styrene 10 to 20 parts by weight; Petroleum resin 5 to 15 parts by weight; Aggregate 500 to 2,000 parts by weight; 30 to 150 parts by weight of fine powder aggregate; And 0.1 to 2 parts by weight of cellulose fibers.

In another aspect, the present invention is a rearranging step of arranging a target surface to be constructed; As for 100 parts by weight of asphalt, 10 to 20 parts by weight of styrene isoprene, 5 to 15 parts by weight of petroleum resin, 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, and 0.1 to 2 parts by weight of cellulose fiber Mixing step of mixing goose asphalt concrete composition; A pouring step of transferring the mixed goose asphalt concrete composition to a moving means to pour onto a target surface where the cleaning step has been completed; Compaction step after the pouring step is completed; And a curing step of curing after the compaction step is completed.

The asphalt according to the present invention is not particularly limited as long as it is commonly used in the art, but it is possible to use petroleum-based asphalt or an asphalt mixture.

The asphalt mixture is not particularly limited as long as it is an asphalt mixture commonly used in the art, but is preferably straight asphalt, Trinidad lake asphalt, Trinidad epure asphalt, or at least one selected from them. It is preferable to use the above mixture, more preferably a straight asphalt having a penetration degree of 20 to 40 and, for example, a trinidad lake asphalt and / or a trinidad epure asphalt mixture, more preferably a penetration degree of 20 to 40 It is recommended to use a mixture of 70 to 80% by weight of straight asphalt and 20 to 30% by weight of asphalt consisting of Trinidad Lake asphalt or Trinidad ePure asphalt.

Here, the straight asphalt (straight asphalt) is a conventional asphalt refined residues by distillation or distillation of raw materials with petroleum asphalt, particularly having an intrusion of 20 to 40 is more convenient because of the ease of construction on the road.

The straight asphalt is preferably included in the asphalt mixture at 70 to 80% by weight. If the content is less than 70% by weight, it may take a long time to harden after paving the asphalt, the softening point may be lowered, and when it exceeds 80% by weight, fluidity may be reduced.

In addition, the asphalt serves to improve the fluidity of the goose asphalt concrete composition for pavement, which has improved waterproof performance, including the SIS of the present invention and fine powder aggregate with improved aggregate size, and also increases deformation resistance, slip resistance, and friction resistance. .

The asphalt may be trinidad lake (trinidad lake) asphalt and / or trinidad epure (Trinidad epure) asphalt and the like.

The asphalt is preferably included in the asphalt mixture in an amount of 20 to 30% by weight, and when the content is less than 20% by weight, the effect of improving fluidity, deformation resistance, sliding resistance and friction resistance is negligible, exceeding 30% by weight In this case, the asphalt of the present invention may be softened and the softening point may be lowered.

The content of the rest of the components other than asphalt constituting the goose asphalt concrete composition for pavement with improved waterproof performance, including fine powder aggregate of SIS and improved aggregate particle size according to the present invention is based on 100 parts by weight of asphalt.

Styrene isoprene stylene (SIS) according to the present invention suppresses the occurrence of cracks in the asphalt concrete composition, specifically SIS and fine aggregates of improved aggregate particle size, to improve the waterproofing performance of the goose asphalt concrete composition for pavement. , It not only prevents portholes, but also provides cohesion and improves strength.

The preferred amount of styrene isoprene styrene can be changed according to the user's choice, but is preferably 10 to 20 parts by weight based on 100 parts by weight of asphalt.

The petroleum resin according to the present invention is intended to provide adhesion and waterproofness, and any conventional petroleum resin having the purpose may be used, but preferably, the melting temperature is 100 ° C. or higher and the penetration degree Petroleum resins having a viscosity of 50 to 500 cps at a viscosity of 3 dmm or less and 140 ° C. (hereinafter referred to as 140 ° C.) are suitable, but the melting temperature is 110 ° C. to 140 ° C. and the penetration is 0.5 to 2 dmm, 140 ° C. viscosity is 50 to 300 cps Phosphorus aliphatic C-5 petroleum resin is preferred, but is not necessarily limited thereto.

Here, when the melting temperature of the petroleum resin is 100 ° C or less, it may be a bad product due to sticking to each other or forming lumps when the temperature is high, and if the penetration is 0.5dmm or less, it is too soft to improve the high temperature properties of asphalt. It becomes a problem.

In addition, if the 140 ° C viscosity of the petroleum resin is 500 cps or higher, the viscosity is higher than that of the asphalt, so manufacturing time is too long.

Here, when the melting temperature of the petroleum resin is 100 ° C or less, it may be a bad product due to sticking to each other or forming lumps when the temperature is high, and if the penetration is 0.5dmm or less, it is too soft to improve the high temperature properties of asphalt. It becomes a problem.

In addition, if the 140 ° C viscosity of the petroleum resin is 500 cps or higher, the viscosity is higher than that of the asphalt, so manufacturing time is too long.

The amount of the preferred petroleum resin is not particularly limited, but is preferably 5 to 15 parts by weight based on 100 parts by weight of asphalt.

The aggregate according to the present invention is a mineral material for construction that can be agglomerated by a binder such as asphalt, petroleum resin and / or styreneisoprestyrene, and is chemically stable.

The aggregate refers to sand, gravel, basalt, filthy stone, basalt, and other similar materials.

Specifically, the aggregate may further include basic malignant having an absorption rate of about 0.7% and / or bauxite having an absorption rate of about 5.40%.

Here, it is preferable that the aggregate has a particle size of 0.08 to 13 mm.

The preferred amount of aggregate is preferably 500 to 2,000 parts by weight based on 100 parts by weight of asphalt, preferably 5 to 200 parts by weight of aggregate with a particle size of 0.08 to 2.49 mm, and particles with a particle size of 2.5 to 5.99 mm, based on 100 parts by weight of asphalt. 50 to 200 parts by weight of aggregate, 45 to 400 parts by weight of aggregate having a particle size of 6 to 9.99 mm, 200 to 600 parts by weight of aggregate having a particle size of 10 to 12.99 mm, and 200 to 600 parts by weight of aggregate having a particle size of 13 mm It is good to maximize the waterproofing performance by filling the gaps between the aggregates.

The fine powder aggregate according to the present invention is filled with a gap between the aggregate, particularly fine aggregate and coarse aggregate, and is also referred to as a filler to improve water resistance, and any fine powder aggregate commonly used in the art having this purpose You can use it.

The size of the fine powder aggregate is preferably at least 0.08 mm, more preferably, it is recommended to have a particle size of 0.001 to 0.0799 mm, and the amount is preferably 30 to 150 parts by weight based on 100 parts by weight of asphalt.

In general, the fine powder aggregate used in the waterproof asphalt is not particularly used because of its limited size, and its usage is not limited, so the fine powder aggregate and aggregate are used in combination. It is used as 30 parts by weight or less, but in the present invention, by improving this, the particle size of the fine aggregate is limited and used together with SIS to maximize the waterproofing performance. It can be seen that the graph appears to exceed the upper limit and the lower limit of the specification, and is suitable for waterproof asphalt.

In addition, the fine powder aggregate refers to fine powder, limestone fine powder, sand fine powder, gravel fine powder, basalt fine powder, calcite fine powder, basalt fine powder, and other similar materials.

The cellulose fiber according to the present invention is intended to provide tensile force and / or light weight, etc. by stress applied in the longitudinal-transverse direction of a bridge formed of an asphalt concrete composition, and any cellulose fiber having this purpose may be used. However, preferably, it is preferable to use natural cellulose fiber, and the amount thereof is preferably 0.1 to 2 parts by weight based on 100 parts by weight of asphalt.

The goose asphalt concrete composition for pavement having improved waterproof performance according to the present invention may further include one or more additives that are carried out in the following specific embodiments.

As a specific aspect, the goose asphalt concrete composition for improving the waterproofing performance according to the present invention, specifically the SIS and the fine aggregate aggregate for improved aggregate size, the goose asphalt concrete composition for improving the waterproofing performance has improved bonding properties and durability, etc. In order to improve the asphalt may further include 3 to 15 parts by weight of a silane compound based on 100 parts by weight.

Preferred silane compounds include perfluoroalkoxysilanes such as perfluoromethoxysilane and perfluoroethoxysilane or tetraalkoxysilanes such as tetramethoxysilane and tetraethoxysilane, and trialkoxysilanes as siloxane oligomers. It is preferred to use tetraalkoxysilane, dialkoxysilane or a mixture of at least one selected from these.

As another specific aspect, the paving goose asphalt concrete composition with improved waterproof performance according to the present invention is based on 100 parts by weight of asphalt in order not to have more fluidity than necessary during construction using the paved goose asphalt concrete composition with improved waterproof performance 1 To 10 parts by weight may further include a flow inhibitor.

Preferred flow inhibitors can be zinc stearate, calcium stearate, stearic acid or a mixture of at least one selected from them.

As another specific aspect, the goose asphalt concrete composition for improving waterproof performance according to the present invention may further include 2 to 15 parts by weight of an anti-deformation agent based on 100 parts by weight of asphalt in order to reduce plastic deformation of the composition.

It is recommended that the preferred anti-deformation agent include polyethylene, ethylene vinyl acetate, polybutene, high impact polystyrene, polypropylene, or mixtures thereof.

At this time, if the amount of the deformation inhibitor is less than 2 parts by weight, the effect of preventing deformation is negligible, and when it exceeds 15 parts by weight, there is a problem that mixing with other components is not easy when preparing an asphalt concrete composition.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention further includes a viscosity index improver of 3 to 20 parts by weight based on 100 parts by weight of asphalt to slow the viscosity change changing at high temperature or low temperature. can do.

Preferred viscosity index improvers are Poly-iso-Butylene, Olefin Copolymer, Ethylene-Propylene Copolymer, Styrene-Butadiene Copolymer , It is preferable to use a styrene-maleic acid ester copolymer (Stylene-maleic acid-ester Copolimer) and / or poly-methacrylate (Polymethacrylate).

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention restores the alkalinity of the neutralized concrete structure to suppress and prevent rebar corrosion by neutralizing the concrete, and the concrete structure is carbon dioxide gas in the atmosphere In contact with calcium carbonate and water, it may further include 3 to 10 parts by weight of lithium silicate (Li ₂ O-nSiO ₂ -xH ₂ O) based on 100 parts by weight of asphalt to prevent deterioration. When less than 3 parts by weight is added, the alkalizing effect of the concrete structure is lowered, and when it exceeds 8 parts by weight, the alkalizing effect is improved to some extent, but the effect is not large, and only the cost of the product is increased.

In the lithium silicate, +1 valent lithium present in lithium silicate replaces CO ₃ through ion bonding, and neutralizes the pH of the concrete structure in which neutralization has progressed to 11 to 12, making it strong alkaline, and through ion bonding, inside the concrete structure. By crosslinking with the liberated cement component, it serves to increase the mechanical strength of the concrete's surface and interior.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention may further include 0.1 to 5 parts by weight of calcium fluoroaluminate based on 100 parts by weight of asphalt to secure the gel time of the composition. , Calcium fluoro aluminate is a major component of C ₁₁ A ₇ CaF ₂ , if the amount used is less than 0.1 parts by weight, the gelation time of the composition becomes longer, so it is impossible to obtain the desired performance and exceed 5 parts by weight. In this case, excessive gelation may cause problems in workability.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention may further include 1 to 10 parts by weight of sodium alginate, based on 100 parts by weight of asphalt, to increase viscosity and enhance adhesion. If it is less than 5 parts by weight based on 100 parts by weight of this asphalt, the hydrophobicity decreases, and if the content exceeds 10 parts by weight, the viscosity is excessively increased, which is not good.

The sodium alginate, as one of the polysaccharides represented by (C6H8O6) n, has a carboxyl group and can be made by soda ash treatment, so it has viscosity in sodium alginate itself, thereby enhancing viscosity and adhesion.

As another specific aspect, the paving goose asphalt concrete composition having improved waterproof performance according to the present invention is based on 100 parts by weight of asphalt to prevent harmful components present in the asphalt concrete from being released to the outside and causing environmental pollution. As 5 to 15 parts by weight of dimethyl ammonium chloride may further include.

As another specific aspect, the goose asphalt concrete composition for improving the waterproofing performance according to the present invention controls 1 to 5 parts by weight of butyl glycidyl ether based on 100 parts by weight of asphalt in order to control the viscosity of the composition and improve adhesion. (Butyl glycidyl ether) may further include, if the amount used is less than 1 part by weight, the effect of viscosity adjustment and adhesion improvement is negligible, and if it exceeds 5 parts by weight, there is a disadvantage that the curing is delayed and the hardness of the surface is lowered. .

As another specific aspect, the goose asphalt concrete composition for improving waterproof performance according to the present invention may further include 1 to 3 parts by weight of diatomaceous earth based on 100 parts by weight of asphalt to prevent peeling while promoting drying of the coating film. However, diatomaceous earth has a high porosity and a large surface area, so it is effective in preventing drying and peeling of the coating film.

As another specific aspect, the goose asphalt concrete coating composition for pavement according to the present invention may further include 10 to 30 parts by weight of coal tar pitch based on 100 parts by weight of asphalt to further improve water resistance.

As another specific aspect, the goose asphalt concrete composition for pavement according to the present invention may further include 10 to 30 parts by weight of talc based on 100 parts by weight of asphalt to improve water resistance and improve tensile strength and flexural strength. With respect to the content of less than 10 parts by weight, it is difficult to expect an effect of improving water resistance, and if the content exceeds 30 parts by weight, it is not good because it causes thickening.

The talc is a hydrated magnesium silicate mineral having excellent whiteness, and is also called talc. Because talc is an inorganic mineral, its melting point is not only resistant to fire at a temperature of 1,400 ° C, but also improves water resistance, and also increases tensile strength and flexural strength. There is.

As another specific aspect, the goose asphalt concrete composition for improving waterproof performance according to the present invention further comprises 1 to 5 parts by weight of hydrazine phenyl triazine, based on 100 parts by weight of asphalt, to absorb ultraviolet rays and prevent the generation of cracks can do.

As another specific aspect, the goose asphalt concrete composition for improving the waterproofing performance according to the present invention according to the present invention comprises 1 to 100 parts by weight of an isothiazoline derivative based on 100 parts by weight of asphalt to prevent corrosion of the composition. It may further include 3 parts by weight.

As another specific aspect, the goose asphalt concrete composition for improving waterproof performance according to the present invention may further include 1 to 5 parts by weight of sodium fluoride based on 100 parts by weight of asphalt to improve the filling and durability of the composition. There is, sodium fluoride primarily serves as a filler, but secondly, it serves to improve durability, and its effect can be obtained in the above content range.

As another specific aspect, the goose asphalt concrete composition for improving the waterproofing performance according to the present invention accelerates the dissolution of the composition to increase the initial heat of reaction to speed up condensation hardening, thereby increasing potassium phosphate to secure the initial strength. It may further include 1 to 5 parts by weight based on parts by weight, and if it exceeds 5 parts by weight based on 100 parts by weight of asphalt, cracking may occur due to rapid performance, and if it is less than 1 part by weight, the hydrolysis rate decreases and strength It is not good because it is degraded.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention may further include carboxymethylcellulose (CMC) to increase the viscosity of the composition and to improve the adhesion, the amount of which is used for asphalt 100 1 to 5 parts by weight is good based on parts by weight.

As another specific aspect, the goose asphalt concrete composition for improving the waterproofing performance according to the present invention may further include tetraethylenepentamine (TEPA) in an amount of 2 to 8 parts by weight based on 100 parts by weight of asphalt, tetraethylene Pentamine is a type of polyamine, which plays a role in controlling the curing speed and viscosity of the asphalt concrete composition with improved water resistance, and when the amount used is less than 2 parts by weight, the effect is negligible. It is not too economical.

As another specific aspect, the goose asphalt concrete composition for improving waterproof performance according to the present invention uses octylphenol ethoxylate as 100 parts by weight of asphalt for rapid curing and durability improvement of the goose asphalt concrete composition for improving waterproof performance It may further include 1 to 5 parts by weight.

As another specific aspect, the goose asphalt concrete composition for improving waterproof performance according to the present invention is ammonium nonylphenol ether sulfate in order to improve the filling and durability of the goose asphalt concrete composition for improving waterproof performance ) May further include 1 to 5 parts by weight based on 100 parts by weight of asphalt.

As another specific aspect, the goose asphalt concrete composition for improving the waterproofing performance according to the present invention suppresses the rapid reaction when mixing the goose asphalt concrete composition for improving the waterproofing performance to suppress sodium bicarbonate to improve the stability of the reaction. It may further include 1 to 5 parts by weight based on 100 parts by weight.

As another specific aspect, the paving goose asphalt concrete composition having improved water resistance according to the present invention uses asphalt 100 with polyvinylidene fluoride resin to prevent the cohesive force and separation of materials of the paving goose asphalt concrete composition with improved water resistance. It may further include 1 to 5 parts by weight based on parts by weight.

As another specific aspect, the goose asphalt concrete composition for pavement having improved water resistance according to the present invention effectively cures at room temperature and provides amino group-containing siloxanes to provide improved properties such as heat resistance, low temperature performance, chemical resistance, solvent resistance and oil resistance. (Aminofunctional siloxan) may be further included.

The amino group-containing siloxane is not particularly limited, and examples thereof include aminomethyl polydimethylsiloxane, and the amount of use is 3 to 10 parts by weight based on 100 parts by weight of asphalt.

As another specific aspect, the goose asphalt concrete composition for improving waterproof performance according to the present invention may further include 1 to 3 parts by weight of zinc sulfate (zinc sulphate) based on 100 parts by weight of asphalt.

Zinc sulphate is widely used as an alkali-imparting agent, and when zinc sulfate is included in a goose asphalt concrete composition for improved pavement, it restores alkalinity of roads to which the composition is applied, and prevents corrosion by creating an inert film on the surface. Can.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention may further include 1 to 3 parts by weight of polyindolocarbazole based on 100 parts by weight of asphalt for gelation of the asphalt concrete composition.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention is 100 parts by weight of asphalt to improve the acid resistance, alkali resistance, weather resistance, flame retardancy, antibacterial, sound insulation, abrasion resistance and impact resistance of the composition Based on 3 to 15 parts by weight of a micro-hollow (microscopic hollow sphere) powder may be further included.

The micro-hollow powder is a powder having a micro-hollow size of 30 to 100 micrometers based on aluminum silicate.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention may further include 5 to 20 parts by weight of an acrylic polymer resin based on 100 parts by weight of asphalt to improve chemical resistance.

As another specific aspect, the goose asphalt concrete composition for improving the waterproofing performance according to the present invention further comprises 1 to 5 parts by weight of calcined pozzolana to 100 parts by weight of asphalt to further improve the waterproofing performance of the composition. Hasopozolana is prepared by adding calcium to natural pozzolana which is mainly composed of fine red volcanic soil, and in particular, the calcined pozzolana is 1 to 20 weights of calcium in 100 parts by weight of natural pozzolana. It is preferable to use a pulverized mixture having a particle size of 10 to 20 µm after calcining a mixture of parts in a temperature range of 1000 to 1200 ° C for 0.5 to 1 hour.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention improves the adhesion of the composition and fills the voids of the pavement surface to which the asphalt concrete composition is applied (polymetylsilsesquioxane) It may further include 1 to 5 parts by weight based on 100 parts by weight of asphalt.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance according to the present invention is excellent in water resistance and tetra to make it possible to minimize the penetration of rainwater into the pavement surface to which the waterproof asphalt concrete composition is applied. Ethyl orthosilicate (tetraethyl orthosilicate: TEOS) may further include 1 to 5 parts by weight based on 100 parts by weight of asphalt.

As another specific aspect, the goose asphalt concrete composition for improving the waterproof performance in the present invention is polyvinylpyrrolid to allow the asphalt concrete composition to stably disperse and to absorb and swell moisture to maintain the waterproof layer stably. Money (polyvinyl pyrrolidone) may further include 5 to 20 parts by weight based on 100 parts by weight of asphalt.

As another specific aspect, the goose asphalt concrete composition for improving waterproof performance according to the present invention uses 100 weight of dioctyl terephthalate (DOTP) asphalt to improve the thermal stability and plasticizing efficiency of the goose asphalt concrete composition for pavement. It may further include 1 to 5 parts by weight based on parts.

As another specific aspect, the goose asphalt concrete composition for improving the waterproofing performance according to the present invention uses sodium rosin asphalt 100 to improve the dispersibility of the goose asphalt concrete composition for pavement and to prevent entanglement again after mixing the composition. It may further include 1 to 3 parts by weight based on parts by weight.

As another specific aspect, the pavement asphalt concrete composition for improving the waterproof performance according to the present invention is an asphalt nickel nickel powder in which the nickel powder and the chromium powder are mixed in a weight ratio of 1: 1 in order to impart antibacterial and antirust effects. It may further include 10 parts by weight in 3 based on 100 parts by weight, and both nickel powder and chromium powder use powder of 200 mesh or less, and nickel powder and chromium powder used in a weight ratio of 1: 1 is goose asphalt for pavement. In order to prevent the reduction in homogeneity in the slurry state of the concrete composition, the mixture of the high specific gravity nickel powder and the low specific gravity chrome powder is mixed 1: 1 to impart antibacterial and antirust effects, and at the same time, to prevent degradation in the slurry state. In addition, the mixed weight ratio of the nickel chromium powder is the above if the amount used is less than 3 parts by weight based on 100 parts by weight of asphalt When the effect of imparting functionality is weak, and it exceeds 10 parts by weight, uniform dispersibility of the material in the slurry-like mixture is reduced, which is not good.

The construction method using the goose asphalt concrete composition for pavement having improved waterproof performance, including the fine powder aggregate of the SIS and the improved aggregate particle size according to the present invention having such a configuration is as follows.

Here, the following construction method is not limited to one embodiment of the goose asphalt concrete composition for improving the waterproof performance, including fine powder aggregate of SIS and improved aggregate particle size, but is not limited thereto, and the goose for improving the conventional waterproof performance in the art Any construction method using a paving goose asphalt concrete composition with improved waterproof performance, including an asphalt concrete composition, specifically SIS and fine aggregates of improved aggregate particle size, may be used.

As one aspect, the construction method using a goose asphalt concrete composition for pavement improvement with improved waterproof performance, including fine powder aggregates of SIS and improved aggregate particle size according to the present invention comprises a rearranging step of arranging a target surface to be constructed; As for 100 parts by weight of asphalt, 10 to 20 parts by weight of styrene isoprene, 5 to 15 parts by weight of petroleum resin, 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, and 0.1 to 2 parts by weight of cellulose fiber Mixing step of mixing goose asphalt concrete composition; A pouring step of transferring the mixed goose asphalt concrete composition to a moving means to pour onto a target surface where the cleaning step has been completed; Compaction step after the pouring step is completed; And a curing step of curing after the compaction step is completed.

Here, it is preferable to use a dump truck as the moving means in the pouring step.

As another aspect, the construction method using the goose asphalt concrete composition for pavement improving waterproof performance, including fine powder aggregate of SIS and improved aggregate particle size according to the present invention is based on 100 parts by weight of asphalt on the target surface to be constructed. 10 to 20 parts by weight of isoprene styrene, 5 to 15 parts by weight of petroleum resin, 500 to 2,000 parts by weight of aggregate, 30 to 150 parts by weight of fine powder aggregate, and 2 to 8 cm of paving goose asphalt concrete composition comprising 0.1 to 2 parts by weight of cellulose fiber A base layer manufacturing step of manufacturing a base layer by packaging with a thickness of; Based on 100 parts by weight of asphalt on the upper end of the base layer manufacturing step, styrene isoprene 10 to 20 parts by weight, petroleum resin 5 to 15 parts by weight, aggregate 500 to 2,000 parts by weight, fine powder aggregate 30 to 150 parts by weight, and cellulose A surface layer manufacturing step of manufacturing a surface layer by paving a goose asphalt concrete composition for pavement containing 0.1 to 2 parts by weight of fibers to a thickness of 2 to 8 cm; After the surface layer manufacturing step is completed, compaction step of compacting the cast surface; And a curing method of curing the goose asphalt concrete composition for pavement in which the compaction step is completed.

Hereinafter, the present invention will be described in detail through examples. However, the following examples are only intended to specifically describe the present invention and do not limit the scope of the present invention by these examples.

[Example 1]

100 g of straight asphalt with a penetration of 30, 15 g of styrene isoprene, 10 g of aliphatic C-5 petroleum resin having a viscosity of 50 to 300 cps at a temperature of 140 ° C., gravel having a particle size of about 3 mm and gravel having a particle size of about 5 mm at a weight ratio of 5: 5. 1,200g of mixed aggregate, 80g of fine powder aggregate composed of limestone having a particle size of about 0.03mm, and 1g of natural cellulose fiber were mixed to prepare a paved goose asphalt concrete composition with improved waterproof performance.

[Example 2]

It was carried out in the same manner as in Example 1, but instead of 1,200 g of aggregate having a particle size of about 3 mm and gravel having a particle size of about 5 mm in a weight ratio of 5: 5, 50 g of aggregate having a particle size of 0.09 mm and 3 mm of particle size It was carried out using 150 g phosphorous aggregate, 200 g aggregate having a particle size of 6 mm, 400 g aggregate having a particle size of 10 mm, and 400 g aggregate having a particle size of 13 mm.

[Example 3]

It was carried out in the same manner as in Example 1, but was performed by adding 8 g of perfluoromethoxysilane.

[Example 4]

It was carried out in the same manner as in Example 1, it was carried out by adding 5g of zinc stearate.

[Example 5]

It was carried out in the same manner as in Example 1, it was carried out by adding 8g of polybutene.

[Example 6]

It was carried out in the same manner as in Example 1, but was performed by further adding 12 g of poly-iso-butylene.

[Example 7]

It was carried out in the same manner as in Example 1, and was performed by adding 7 g of lithium silicate.

[Example 8]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of calcium fluoroaluminate.

[Example 9]

It was carried out in the same manner as in Example 1, but was performed by adding 5 g of sodium alginate.

[Example 10]

It was carried out in the same manner as in Example 1, but was performed by further adding 10 g of dimethyl ammonium chloride.

[Example 11]

It was carried out in the same manner as in Example 1, 3 g of butyl glycidyl ether was further added.

[Example 12]

It was carried out in the same manner as in Example 1, but was performed by adding 2 g of diatomaceous earth.

[Example 13]

It was carried out in the same manner as in Example 1, it was carried out by adding 15 g of coal tar pitch.

[Example 14]

It was carried out in the same manner as in Example 1, but was performed by further adding 15 g of talc.

[Example 15]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of hydrazine phenyl triazine.

[Example 16]

It was carried out in the same manner as in Example 1, it was carried out by adding 2 g of isothiazoline derivative.

[Example 17]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of sodium fluoride.

[Example 18]

It was carried out in the same manner as in Example 1, it was carried out by adding 3g of potassium phosphate.

[Example 19]

It was carried out in the same manner as in Example 1, it was carried out by adding 3g of carboxymethyl cellulose.

[Example 20]

It was carried out in the same manner as in Example 1, it was carried out by adding 5 g of tetraethylene pentamine.

[Example 21]

It was carried out in the same manner as in Example 1, 3 g of octylphenol ethoxylate was further added.

[Example 22]

It was carried out in the same manner as in Example 1, but was performed by further adding 53 g of ammonium noniphenol ether sulfate.

[Example 23]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of sodium bicarbonate.

[Example 24]

It was carried out in the same manner as in Example 1, 3 g of polyvinylidene fluoride resin was further added.

[Example 25]

It was carried out in the same manner as in Example 1, but was performed by further adding 7 g of aminomethylpolydimethylsiloxane.

[Example 26]

It was carried out in the same manner as in Example 1, but was performed by adding 2 g of zinc sulfate.

[Example 27]

It was carried out in the same manner as in Example 1, but was performed by further adding 2 g of polyindolocarbazole.

[Example 28]

It was carried out in the same manner as in Example 1, it was carried out by adding 10g of powder having a fine hollow of about 50 micrometers in size.

[Example 29]

It was carried out in the same manner as in Example 1, and after mixing 10 g of calcium with 100 g of natural pozzolana, it was fired at 1100 ° C. for 0.5 hour to further add 2 g of calcined pozzolana having an average particle size of 15 μm.

[Example 30]

It was carried out in the same manner as in Example 1, but was performed by further adding 4 g of polymethylsilsesquioxane.

[Example 31]

It was carried out in the same manner as in Example 1, but was performed by adding 5 g of tetraethyl orthosilicate.

[Example 32]

It was carried out in the same manner as in Example 1, but was performed by further adding 7 g of polyvinylpyrrolidone.

[Example 33]

It was carried out in the same manner as in Example 1, but was performed by adding 3 g of dioctyl terephthalate.

[Example 34]

It was carried out in the same manner as in Example 1, 2 g of sodium rosin was further added.

[Example 35]

It was carried out in the same manner as in Example 1, it was carried out by adding a nickel chromium powder 6g mixed nickel powder and chromium powder in a weight ratio of 1: 1.

[Example 36]

It was carried out in the same manner as in Example 1, but was performed by adding together the adducts added in Examples 3 to 35 to Example 1.

[Experiment]

After preparing a goose asphalt concrete layer for a pavement of about 60 mm thick using the composition prepared according to the examples, water resistance, low temperature (at -10 ℃) curability, cracking, dynamic stability, indirect tensile strength, strain strength, compressive strength Table 1 was measured and the like was measured.

Here, the dynamic stability was measured through the strain strength test and test by the Kim Test by evaluating the plastic strain resistance, and the indirect strength was conducted to evaluate the crack resistance, and the compressive strength was measured using an asphalt compressive strength tester.

Waterproof Gelation / 1hr
(at -10 ℃) Cracking degree Dynamic stability
(pass / mm) Indirect tensile strength
(ITS) Deformation strength
(Mpa) Compressive strength (MPa) 7 days 28 days Example 1 99% 65 none 1853 0.89 5.83 31.5 84 Example 2 99% 67 none 1853 0.89 5.82 32.3 87 Example 3 99% 64 none 1865 0.89 5.81 32.2 87 Example 4 98% 66 none 1854 0.87 5.78 31.1 83 Example 5 98% 67 none 1872 0.85 5.84 31.2 82 Example 6 98% 68 none 1884 0.85 5.79 31.2 86 Example 7 99% 65 none 1843 0.87 5.72 34.5 80 Example 8 99% 65 none 1864 0.85 5.63 31.2 83 Example 9 99% 64 none 1873 0.85 5.70 33.1 82 Example 10 99% 65 none 1885 0.86 5.94 27.3 86 Example 11 99% 69 none 1867 0.85 5.74 32.2 80 Example 12 98% 63 none 1845 0.86 5.83 32.4 83 Example 13 98% 66 none 1845 0.88 5.81 31.5 82 Example 14 99% 67 none 1841 0.86 5.81 32.2 86 Example 15 99% 65 none 1840 0.89 5.76 32.2 85 Example 16 99% 68 none 1873 0.89 5.76 31.1 87 Example 17 99% 66 none 1885 0.89 5.73 31.2 82 Example 18 98% 67 none 1867 0.89 5.81 33.5 84 Example 19 99% 64 none 1845 0.87 5.74 32.4 86 Example 20 99% 65 none 1845 0.88 5.69 31.1 86 Example 21 99% 67 none 1841 0.88 5.78 31.2 88 Example 22 99% 67 none 1840 0.89 5.73 33.5 88 Example 23 98% 68 none 1858 0.89 5.79 32.4 83 Example 24 99% 67 none 1884 0.87 5.80 31.2 86 Example 25 98% 68 none 1858 0.88 5.79 33.5 84 Example 26 99% 69 none 1854 0.87 5.76 32.4 86 Example 27 99% 67 none 1885 0.87 5.67 32.6 86 Example 28 99% 68 none 1873 0.89 5.81 32.2 87 Example 29 99% 69 none 1874 0.88 5.83 32.3 88 Example 30 98% 68 none 1878 0.89 5.78 32.4 83 Example 31 99% 67 none 1885 0.88 5.81 31.5 87 Example 32 99% 68 none 1884 0.88 5.79 33.5 85 Example 33 99% 68 none 1874 0.87 5.76 32.4 86 Example 34 99% 67 none 1885 0.87 5.77 32.6 86 Example 35 98% 67 none 1885 0.88 5.82 32.4 88 Example 36 98% 67 none 1885 0.88 5.84 33.2 88

As shown in Table 1, waterproofness, dynamic stability, indirect tensile strength and strain strength of Examples 1 to 36 using a goose asphalt concrete composition for pavement improving water resistance, including fine powder aggregates of SIS and improved aggregate particle size It is good, as well as rapid hardening due to gelation at low temperature, there is no crack, and the compressive strength is 75 megapascals or more at the time when 28 days have elapsed.

As described above, those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the above-described embodiments are all illustrative and not restrictive. The scope of the present invention should be construed to include all modified or modified forms derived from the equivalent concept and meaning and scope of the claims, which will be described later, rather than the detailed description.

Claims (5)

Based on 100 parts by weight of asphalt,
Styrene isoprene 10 to 20 parts by weight;
Petroleum resin 5 to 15 parts by weight;
Aggregate 500 to 2,000 parts by weight;
30 to 150 parts by weight of fine powder aggregate; And
Goose asphalt concrete composition for pavement containing 0.1 to 2 parts by weight of cellulose fibers.
According to claim 1,
The aggregate is based on 100 parts by weight of asphalt, 5 to 200 parts by weight of aggregate having a particle size of 0.08 to 2.49 mm, 50 to 200 parts by weight of aggregate having a particle size of 2.5 to 5.99 mm, 45 to 400 parts of aggregate having a particle size of 6 to 9.99 mm Part, goose asphalt concrete composition for pavement comprising 200 to 600 parts by weight of aggregate having a particle size of 10 to 12.99 mm, and 200 to 600 parts by weight of aggregate having a particle size of 13 mm.
According to claim 1,
The cellulose fiber is a goose asphalt concrete composition for pavement comprising a natural cellulose fiber.
A rearranging step of arranging the target surface to be constructed;
For asphalt 100 parts by weight, styrene isoprene 10 to 20 parts by weight, petroleum resin 5 to 15 parts by weight, aggregates 500 to 2,000 parts by weight, fine powder aggregates 30 to 150 parts by weight, and cellulose fiber 0.1 to 2 parts by weight for packaging Mixing step of mixing goose asphalt concrete composition;
A pouring step of transferring the mixed goose asphalt concrete composition to a moving means to pour onto a target surface where the cleaning step has been completed;
Compaction step after the pouring step is completed; And
Construction method of a paving goose asphalt concrete composition comprising a curing step to cure after the compaction step is finished.
Based on 100 parts by weight of asphalt on the target surface, styrene isoprene 10 to 20 parts by weight, petroleum resin 5 to 15 parts by weight, aggregate 500 to 2,000 parts by weight, fine powder aggregate 30 to 150 parts by weight, and cellulose fiber 0.1 to A base layer manufacturing step of preparing a base layer by paving a goose asphalt concrete composition for pavement containing 2 parts by weight to a thickness of 2 to 8 cm;
Based on 100 parts by weight of asphalt on the upper end of the base layer manufacturing step, styrene isoprene 10 to 20 parts by weight, petroleum resin 5 to 15 parts by weight, aggregate 500 to 2,000 parts by weight, fine powder aggregate 30 to 150 parts by weight, and cellulose A surface layer manufacturing step of manufacturing a surface layer by paving a goose asphalt concrete composition for pavement containing 0.1 to 2 parts by weight of fibers to a thickness of 2 to 8 cm;
After the surface layer manufacturing step is completed, compaction step of compacting the pouring surface; And
Construction method of paving goose asphalt concrete composition comprising a curing step of curing the goose asphalt concrete composition for pavement in which the compaction step is finished.