KR102574266B1 - High functional modified asphalt-based waterproofing composition having excellent waterproof performance and constructing method of asphalt bridge deck waterproofing using the same - Google Patents

Abstract

The present invention is a highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, comprising 60 to 80% by weight of straight asphalt, 5 to 20% by weight of a high functional polymer modifier, 1 to 10% by weight of a highly functional inorganic reinforcing agent, and 0.1 to 10% by weight of a performance recovery admixture. 5% by weight, including 0.1 to 5% by weight of petroleum resin and 0.1 to 5% by weight of plasticizer;
The high-functional polymer modifier is styrene-butadiene rubber (SBR) 100 parts by weight, styrene-methyl methacrylate copolymer (SMMA) 20 to 30 parts by weight, polypropylene carbonate 20 to 30 parts by weight, tetramethyl succinonitrile 1 to 10 parts by weight, 1 to 10 parts by weight of 3,4-dichloroisothiazole carboxylic acid, 1 to 10 parts by weight of bis (3-triethoxysilylpropyl) tetra sulfide (TSS) and 0.1 to 5 parts by weight of ferulic acid includes wealth;
The high-functional inorganic reinforcing agent includes 100 parts by weight of calcium carbonate, 10 to 30 parts by weight of magnesium hydroxide, 10 to 30 parts by weight of volkonskoite, 1 to 10 parts by weight of lanthanum silicate, and 1 to 10 parts by weight of phytosilica. to include;
By using the performance recovery admixture containing 100 parts by weight of maleic anhydride-modified polyolefin and 1 to 10 parts by weight of L-arginine;
By improving the tensile strength, elongation, tensile adhesive strength, shear adhesive strength, shear adhesive strain (%) and heat-resistant dimensional stability of the waterproof coating film, and forming a watertight waterproof coating film with excellent durability against alkali and acid, excellent waterproof and It relates to a highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance capable of realizing a water-repellent function and a waterproofing construction method for asphalt bridges using the same.

Description

High functional modified asphalt-based waterproofing composition having excellent waterproof asphalt performance and constructing method of bridge deck waterproofing using the same}

The present invention improves the tensile strength, elongation, tensile adhesive strength, shear adhesive strength, shear adhesive strain (%) and heat-resistant dimensional stability of the waterproof coating film, and forms a waterproof coating film with excellent durability against alkali and acid, It relates to a highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance capable of realizing excellent waterproofing and water-repellent functions and a waterproofing construction method for asphalt bridges using the same.

In general, damage caused to the bridge surface of a structure such as a bridge may be caused by the accumulation of loads applied to the bridge surface, rainwater or snow removal material, and deterioration factors as the service life increases. As time passes, this damage expands due to the decrease in the bonding strength between materials and the change in the volume of water due to temperature change, resulting in a decrease in the strength and life of the structure, and rainwater through cracks, median strips, and gaps in joints. When infiltrating, the reinforcing bars inside the structure may be corroded, resulting in a shortened lifespan and collapse of the structure.

Therefore, asphalt waterproofing materials are applied to the bridge surfaces of structures such as bridges in order to prevent deterioration in the strength and life of structures due to penetration of rainwater or snow removal materials. By applying the asphalt waterproofing material to the bridge surface of the structure, it is possible to prevent the deterioration of the structure and the corrosion of the reinforcing bars due to the permeating water and chloride. On the other hand, it is more exposed to an environment in which dynamic applications such as repeated loads, vibrations, shocks, shear, etc., and contractions and expansions due to temperature changes are complexly repeated by driving vehicles, and appropriate adaptability to these is required.

In addition, the coating-type waterproofing method, which applies asphalt waterproofing material to the bridge surface of a structure, forms a waterproofing film by applying liquid waterproofing material to the surface multiple times, so it is easy to transport and construct the material, and it is easy to install even on the surface of a complex structure. There were possible advantages.

However, if the smoothness of the background surface is poor, the thickness of the coating film may be formed unevenly along the irregularities of the background surface, and pinholes may occur due to pores existing on the background surface, and water vapor pressure generated from moisture on the background surface may be affected. It has been pointed out that when the waterproof coating film swells or cracks occur on the base surface, the responsiveness to it is significantly lowered. In addition, there was a problem that phenomena such as curing deterioration due to mixing of materials and climate may occur.

In particular, since the conventional asphalt waterproofing material is applied to the bridge surface after being heated to a high temperature of 180 ℃ or higher in the field, there is a problem that some components are burned due to the high heat, and the elongation rate of the waterproof coating film is lowered. During the expansion and contraction behavior of the waterproof coating film, the waterproof coating film is not sufficiently stretched, so that the waterproof coating film is broken, causing water leakage or shortening the lifespan. As a result, the long-term durability of the structure is reduced, and maintenance costs are increased, thereby increasing the economic burden.

Republic of Korea Patent No. 10-1681001 Republic of Korea Patent No. 10-1954235 Republic of Korea Patent No. 10-2119756

The present invention has been made to solve the above-mentioned problems, and one embodiment of the present invention blocks the penetration of deterioration factors (moisture, snow remover, seawater, acid rain, chemical substances, etc.) from the outside, and at the same time, high temperature High-functional modified asphalt-based waterproofing material with excellent waterproof performance to improve the elongation rate of the waterproof coating film and improve the followability of the waterproof coating film's elongation behavior according to climate change after construction to solve the problem that the waterproof coating film is broken or leaks occur It is intended to provide a composition and an asphalt bridge waterproofing construction method using the same.

Various problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

One embodiment of the present invention is a highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, comprising 60 to 80% by weight of straight asphalt, 5 to 20% by weight of a high-functional polymer modifier, 1 to 10% by weight of a high-functional inorganic reinforcing agent, 0.1 to 5% by weight of a recovery admixture, 0.1 to 5% by weight of petroleum resin and 0.1 to 5% by weight of a plasticizer;

The high-functional polymer modifier is styrene-butadiene rubber (SBR) 100 parts by weight, styrene-methyl methacrylate copolymer (SMMA) 20 to 30 parts by weight, polypropylene carbonate 20 to 30 parts by weight, tetramethyl succinonitrile 1 to 10 parts by weight, 1 to 10 parts by weight of 3,4-dichloroisothiazole carboxylic acid, 1 to 10 parts by weight of bis (3-triethoxysilylpropyl) tetra sulfide (TSS) and 0.1 to 5 parts by weight of ferulic acid includes wealth;

The high-functional inorganic reinforcing agent includes 100 parts by weight of calcium carbonate, 10 to 30 parts by weight of magnesium hydroxide, 10 to 30 parts by weight of volkonskoite, 1 to 10 parts by weight of lanthanum silicate, and 1 to 10 parts by weight of phytosilica. to include;

The performance recovery admixture provides a highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, comprising 100 parts by weight of maleic anhydride-modified polyolefin and 1 to 10 parts by weight of L-arginine.

The surface of the lanthanum silicate is modified with lanthanum fluoride (LaF ₃ );

preparing a mixed powder by mixing and ball-milling La(NO ₃ ) ₃ powder and SiO ₂ powder of the lanthanum silicate whose surface is modified by lanthanum fluoride (LaF ₃ ); heat-treating the mixed powder in a nitrogen gas atmosphere containing 2 to 25 vol% of hydrogen at a temperature of 1000 to 1400 ° C. to obtain lanthanum silicate powder; and loading the obtained lanthanum silicate powder onto a substrate in a vacuum chamber, and then vacuum thermally depositing LaF ₃ crystals having a purity of 99% or higher on the surface of the lanthanum silicate powder, thereby modifying the surface of the lanthanum silicate with lanthanum fluoride (LaF ₃ ). It may be prepared by a method including; preparing a.

The performance recovery admixture is based on 100 parts by weight of the maleic anhydride-modified polyolefin, 1 to 10 parts by weight of milk protein fiber having an amino acid content of 25 to 35% by weight and N-benzhydryl quinuclidine represented by the following formula (1) It may further include 0.1 to 5 parts by weight of the derivative.

[Formula 1]

In the above formula,

R ₁ is hydrogen or a C1 to C4 alkoxy group;

R ₂ is hydrogen or a C1 to C4 alkyl group.

The N-benzhydryl quinuclidine derivative represented by Formula 1 is 2-(diphenylmethyl)-N-(2-methoxybenzyl)quinuclidin-3-amine (2-(Diphenylmethyl)-N-( 2-methoxybenzyl)quinuclidin-3-amine); and (2S,3S)-2-(diphenylmethyl)-N-[2-methoxy-5-(2-methyl-2-propanyl)benzyl]quinuclidin-3-amine ((2S,3S) -2-(Diphenylmethyl)-N-[2-methoxy-5-(2-methyl-2-propanyl)benzyl]quinuclidin-3-amine) may be mixed in a weight ratio of 1:1.

On the other hand, another embodiment of the present invention is an asphalt bridge waterproofing construction method using the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance,

Step of arranging the surface to remove foreign substances and impurities in the bridge waterproofing construction site; forming a primer layer by applying a primer; Forming an asphalt waterproofing layer by applying the highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance using an asphalt coating film waterproofing heating equipment; Installing a fiber protective material; And it provides an asphalt bridge waterproof construction method comprising the step of forming an asphalt pavement layer by paving the bridge surface by laying and compacting the asphalt concrete.

According to the highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance and the asphalt bridge waterproofing construction method using the same according to an embodiment of the present invention, the tensile strength, elongation, tensile adhesive strength, shear adhesive strength, and shear adhesive strain of the waterproof coating film It has the effect of providing excellent waterproof performance by improving dimensional stability (%) and heat resistance. In particular, it has excellent tensile performance (tensile strength, elongation) at high temperatures, and thus has the effect of greatly improving followability of the waterproof coating film according to the temperature change and climate change during the construction process. As a result, it is perfectly integrated with excellent adhesion between the rigid bridge concrete floor plate and the ductile asphalt pavement layer having different coefficients of thermal expansion, effectively preventing the shear performance and tensile adhesion of the asphalt pavement layer from deteriorating, It has the effect of effectively solving the problem of the ascon pavement layer falling off due to sudden braking of a high-speed vehicle or being torn by sharp tools during bridge waterproofing construction. In addition, by preventing cracks, deformation, lifting, peeling or fracture caused by climate change, and at the same time forming a waterproof coating film that is watertight and has excellent durability against alkali and acid, excellent waterproof and water repellent functions are realized, It effectively blocks the penetration of deterioration factors (moisture, snow remover, seawater, acid rain, chemical substances, etc.) from the outside, and has the effect of dramatically increasing the service life of structures such as bridges.

1 shows a schematic construction flow chart of an asphalt bridge waterproofing construction method according to various embodiments of the present invention.
Figure 2 shows a schematic construction flow chart of an asphalt bridge waterproofing construction method according to various embodiments of the present invention, which further includes forming a primer layer.
3 is a schematic perspective view of an asphalt coating film waterproofing heating type equipment that can be used in the asphalt bridge waterproofing construction method according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail. However, this is presented as an example, and the present invention is not limited thereby, and the present invention is only defined by the scope of the claims to be described later.

One embodiment of the present invention is a highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, comprising 60 to 80% by weight of straight asphalt, 5 to 20% by weight of a high-functional polymer modifier, 1 to 10% by weight of a high-functional inorganic reinforcing agent, 0.1 to 5% by weight of a recovery admixture, 0.1 to 5% by weight of petroleum resin and 0.1 to 5% by weight of a plasticizer;

The high-functional polymer modifier is styrene-butadiene rubber (SBR) 100 parts by weight, styrene-methyl methacrylate copolymer (SMMA) 20 to 30 parts by weight, polypropylene carbonate 20 to 30 parts by weight, tetramethyl succinonitrile 1 to 10 parts by weight, 1 to 10 parts by weight of 3,4-dichloroisothiazole carboxylic acid, 1 to 10 parts by weight of bis (3-triethoxysilylpropyl) tetra sulfide (TSS) and 0.1 to 5 parts by weight of ferulic acid includes wealth;

The high-functional inorganic reinforcing agent includes 100 parts by weight of calcium carbonate, 10 to 30 parts by weight of magnesium hydroxide, 10 to 30 parts by weight of volkonskoite, 1 to 10 parts by weight of lanthanum silicate, and 1 to 10 parts by weight of phytosilica. to include;

The performance recovery admixture provides a highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, comprising 100 parts by weight of maleic anhydride-modified polyolefin and 1 to 10 parts by weight of L-arginine.

According to the highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance and the asphalt bridge waterproofing construction method using the same according to one embodiment of the present invention, the tensile strength, elongation, tensile adhesive strength, shear adhesive strength, and shear adhesion of the waterproof coating film It has the effect of providing excellent waterproof performance by improving strain (%) and heat-resistant dimensional stability. In particular, it has excellent tensile performance (tensile strength, elongation) at high temperatures, and thus has the effect of greatly improving followability of the waterproof coating film according to the temperature change and climate change during the construction process. As a result, it is perfectly integrated with excellent adhesion between the rigid bridge concrete floor plate and the ductile asphalt pavement layer having different coefficients of thermal expansion, effectively preventing deterioration in shear performance and tensile adhesion of the asphalt pavement layer, thereby preventing high load vehicles and It has the effect of effectively solving the problem of the ascon pavement layer falling off due to sudden braking of a high-speed vehicle or being torn by sharp tools during bridge waterproofing construction. In addition, it prevents cracks, deformation, lifting, peeling or fracture caused by climate change, and at the same time forms a waterproof coating film that is watertight and has excellent durability against alkali and acid, thereby implementing excellent waterproof and water repellent functions, It effectively blocks the penetration of deterioration factors (moisture, snow remover, seawater, acid rain, chemical substances, etc.) from the outside, and has the effect of dramatically increasing the service life of structures such as bridges.

A highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance according to an embodiment of the present invention contains 60 to 80% by weight of straight asphalt, 5 to 20% by weight of a high-functional polymer modifier, 1 to 10% by weight of a highly functional inorganic reinforcing agent, and 0.1 to 5% by weight of a recovery admixture, 0.1 to 5% by weight of petroleum resin and 0.1 to 5% by weight of a plasticizer.

More specifically, the straight asphalt of the present invention provides excellent waterproofness and has good compatibility with the asphalt pavement layer, thereby improving adhesion, adhesion and tensile performance. In addition, by lowering the melting point and improving fluidity, excellent workability can be provided, elongation is excellent, and crack followability by shear stress is excellent, which can effectively prevent cracking, lifting or peeling. It works.

As the straight asphalt, straight asphalt of AP-3 or AP-5 may be used.

The straight asphalt is preferably contained in the range of 60 to 80% by weight in the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance of the present invention. If the content of the straight asphalt is too small, there is a problem that the above improvement effect may be insufficient, and if the content of the straight asphalt is too large, the adhesive performance is rather reduced and the hardness is excessively increased, resulting in a decrease in resistance to cracking. There are problems that could be.

The high-functional polymer modifier of the present invention functions to improve tensile strength, elongation, tensile adhesive strength, shear adhesive strength, shear adhesive strain (%) and heat-resistant dimensional stability to provide excellent waterproof performance. In particular, by improving the tensile performance (tensile strength, elongation) at high temperatures, it not only improves the conformability to the expansion behavior of waterproof coatings due to temperature changes and climate changes in the construction process, but also cracks, deformations, and lifting due to climate changes. , peeling or breaking phenomenon, and at the same time, by forming a waterproof coating film that is watertight and has excellent durability against alkali and acid, it functions to realize excellent waterproof and water repellent functions.

The high-functional polymer modifier is preferably contained in the range of 5 to 20% by weight in the high-functional modified asphalt-based waterproofing material composition having excellent waterproof performance of the present invention. If the content of the high-functional polymer modifier is too small, there is a problem that the above-mentioned improvement effect may be insufficient, and if the content of the high-functional polymer modifier is too large, the waterproof performance at high temperature may rather deteriorate or the price competitiveness may deteriorate. There are problems that can deteriorate.

More specifically, the high-functional polymer modifier is styrene-butadiene rubber (SBR) 100 parts by weight, styrene-methyl methacrylate copolymer (SMMA) 20 to 30 parts by weight, polypropylene carbonate 20 to 30 parts by weight, tetramethyl succinate 1 to 10 parts by weight of cynonitrile, 1 to 10 parts by weight of 3,4-dichloroisothiazole carboxylic acid, 1 to 10 parts by weight of bis (3-triethoxysilylpropyl) tetra sulfide (TSS) and ferulic acid 0.1 to 5 parts by weight may be preferably used.

First, the styrene-butadiene rubber (SBR) provides excellent waterproofness, water resistance, adhesiveness, flexibility and tensile performance, and functions to improve elasticity, impact resistance and crack resistance due to its high elongation. In addition, heat resistance and shear adhesion strain (%) are improved, and the low-temperature properties of asphalt are improved, and the function of improving thermal stability, plastic deformation resistance, warpage estimation and crack followability is improved.

Hereinafter, the content of other components constituting the high-functional polymer modifier is based on 100 parts by weight of the styrene-butadiene rubber (SBR).

The styrene-methyl methacrylate copolymer (SMMA) provides excellent waterproofness and tensile performance, and has improved heat resistance, thermal stability and shear adhesion strain (%), thereby providing excellent heat resistance dimensional stability, plastic deformation resistance and warpage estimation function to provide.

The styrene-methyl methacrylate copolymer (SMMA) is preferably contained in the range of 20 to 30 parts by weight. If the content of the styrene-methyl methacrylate copolymer (SMMA) is too small, there is a problem that the above improvement effect may be insufficient, and if the content of the styrene-methyl methacrylate copolymer (SMMA) is too large Rather, there is a problem that water resistance may be lowered.

The polypropylene carbonate functions to improve tensile adhesive strength, shear adhesive strength, and shear adhesive strain (%). In particular, it functions to improve not only tensile performance (tensile strength, elongation) at high temperature, but also low-temperature properties such as adhesive performance and low-temperature flexibility at low temperature, and to improve water resistance and waterproof function. In addition, flexibility is improved to improve work performance.

The polypropylene carbonate has a weight average molecular weight in the range of 80,000 to 120,000, and preferably has a hydroxyl group at one or both ends of the molecular chain. As a result, there is an effect of improving chemical resistance as well as further enhancing the above improvement effect.

The polypropylene carbonate is preferably contained in the range of 20 to 30 parts by weight. When the content of the polypropylene carbonate is too small, there is a problem that the above improvement effect may be insufficient, and when the content of the polypropylene carbonate is too large, there is a problem that wear resistance and dent resistance may be deteriorated.

The tetramethyl succinonitrile provides excellent thermal stability and adhesive strength, and workability is improved by adjusting high-temperature fluidity, as well as tensile strength, tensile adhesive strength, shear adhesive strength, shear adhesive strain (%), and heat resistance dimensional stability. And it functions to improve waterproof function, improve durability against alkali and acid, and weather resistance, thereby providing excellent anti-corrosion and anti-aging effects.

The tetramethyl succinonitrile is preferably contained in the range of 1 to 10 parts by weight. If the content of tetramethyl succinonitrile is too small, there is a problem that the above improvement effect may be insufficient, and if the content of tetramethyl succinonitrile is too large, it is difficult to expect further performance improvement effect and price competitiveness There are problems with this degradation.

The 3,4-dichloroisothiazolecarboxylic acid functions to realize excellent waterproof function by forming a waterproof coating film having excellent water resistance, chloride ion permeation resistance, durability against alkali and acid, and weather resistance.

The 3,4-dichloroisothiazole carboxylic acid is preferably contained in the range of 1 to 10 parts by weight. If the content of the 3,4-dichloroisothiazolecarboxylic acid is too small, there is a problem that the above improvement effect may be insufficient, and if the content of the 3,4-dichloroisothiazolecarboxylic acid is too large, the strength performance is poor. There are problems that can deteriorate.

The bis(3-triethoxysilylpropyl)tetra sulfide (TSS) improves miscibility with the inorganic reinforcing agent and straight asphalt, and thus has excellent waterproof and water repellent functions as well as excellent tensile strength, elongation, tensile adhesive strength, It functions to improve shear bonding strength, shear bonding strain (%) and heat resistance dimensional stability.

The bis(3-triethoxysilylpropyl)tetra sulfide (TSS) is preferably contained in the range of 1 to 10 parts by weight. If the content of the bis (3-triethoxysilylpropyl) tetra sulfide (TSS) is too small, there is a problem that the above improvement effect may be insufficient, and the bis (3-triethoxysilylpropyl) tetra sulfide ( If the content of TSS) is too large, it is difficult to expect any further performance improvement effect, and there is a problem in that price competitiveness may be lowered.

The ferulic acid realizes excellent waterproof and water repellent functions, has excellent alkali and acid durability, chloride ion permeation resistance, and provides excellent anti-corrosion and anti-aging effects.

The ferulic acid is preferably contained in an amount of 0.1 to 5 parts by weight. If the content of ferulic acid is too small, there is a problem that the above improvement effect may be insufficient, and if the content of ferulic acid is too large, it is difficult to expect further performance improvement effect. There is a problem that may lower price competitiveness.

The high-functional inorganic reinforcing agent of the present invention functions to provide excellent waterproof performance by filling voids in the coating film waterproof layer to form a watertight and stable coating film. In addition, it improves the strength performance, hardness, abrasion resistance, dent resistance, etc. of the waterproof coating film at high and low temperatures, excellent chemical resistance, chloride ion penetration resistance, waterproof and water repellent function, weather resistance, water permeability, heat resistance, dimensional stability, It functions to provide durability such as low-temperature flexibility.

The high-functional inorganic reinforcing agent is preferably contained in the range of 1 to 10% by weight in the high-functional modified asphalt-based waterproofing material composition having excellent waterproof performance of the present invention. If the content of the high-functional inorganic reinforcing agent is too small, there is a problem that the above-described improvement effect may be insufficient, and if the content of the high-functional inorganic reinforcing agent is too large, crack resistance performance may deteriorate or price competitiveness may deteriorate. There are possible problems.

More specifically, the high-functional inorganic reinforcing agent includes 100 parts by weight of calcium carbonate, 10 to 30 parts by weight of magnesium hydroxide, 10 to 30 parts by weight of volkonskoite, 1 to 10 parts by weight of lanthanum silicate and 1 phytosilica to 10 parts by weight may be preferably used.

First, the calcium carbonate forms a watertight waterproof layer, improves compressive strength, increases water absorption, improves excellent adhesion performance, thermal stability and workability, improves alkali resistance performance, corrosion prevention performance and chloride ion penetration resistance, , which controls the viscosity.

Hereinafter, the content of other components constituting the high-functional inorganic reinforcing agent is based on 100 parts by weight of the calcium carbonate.

The magnesium hydroxide forms a watertight waterproof layer and improves heat resistance, shear adhesion strain (%), and heat resistance dimensional stability, such as high and low temperature strength performance, hardness, abrasion resistance, dent resistance, low temperature flexibility, etc. function to improve.

The magnesium hydroxide, whose surface is modified with fatty acids, further improves the above improvement effect, and also improves durability by improving alkali and acid resistance and chloride ion permeation resistance.

More specifically, the surface-modified magnesium hydroxide with fatty acids includes 100 parts by weight of magnesium hydroxide having an average particle diameter of 0.5 to 3 μm, 100 to 300 parts by weight of a petroleum solvent, 10 to 50 parts by weight of fatty acids, and distearyl-3,3 It may be obtained by mixing with 1 to 10 parts by weight of '-thiodipropionate, kneading and filtering, and drying at 60 to 80 ° C.

At this time, the petroleum-based solvent is generally used in the art, and the type is not particularly limited, but non-limiting examples of the petroleum-based solvent include benzene, toluene, xylene, light oil, heavy oil, kerosene, and these At least one selected from the group consisting of mixtures of may be used. In addition, the fatty acid is generally used in the art, and the type is not particularly limited, but non-limiting examples of the fatty acid include lauric acid, capric acid, tall oil fatty acid (TOFA), and mixtures thereof. One or more types selected from the group consisting of can be used.

The magnesium hydroxide is preferably contained in the range of 10 to 30 parts by weight. If the content of the magnesium hydroxide is too small, there is a problem that the above-described improvement effect may be insufficient, and if the content of the magnesium hydroxide is too large, it is difficult to expect any further performance improvement effect, and price competitiveness may be lowered. there is

The volkonskoite fills the pores to form a watertight and stable coating film to provide excellent waterproof performance, and strength performance at high and low temperatures of the waterproof coating film, hardness, wear resistance, dent resistance, etc. and provides durability such as excellent water repellency, weather resistance, heat resistance dimensional stability, and low temperature flexibility.

The volkonskoite is preferably contained in the range of 10 to 30 parts by weight. If the content of the volkonskoite is too small, there is a problem that the above improvement effect may be insufficient, and if the content of the volkonskoite is too large, the chemical resistance may be lowered. there is.

The lanthanum silicate fills the pores in the coating film waterproof layer to form a watertight and stable coating film, and improves strength performance at high and low temperatures, hardness, abrasion resistance, dent resistance, heat resistance dimensional stability, low temperature flexibility, etc. function.

The lanthanum silicate has a surface modified by lanthanum fluoride (LaF ₃ ) to further improve the above effect, as well as excellent chemical resistance, chloride ion penetration resistance, water repellency, weather resistance, durability such as water permeability There are effects that can be further improved.

More specifically, the surface of the lanthanum silicate modified by lanthanum fluoride (LaF ₃ ) is prepared by mixing and ball-milling La(NO ₃ ) ₃ powder and SiO ₂ powder to prepare a mixed powder; heat-treating the mixed powder in a nitrogen gas atmosphere containing 2 to 25 vol% of hydrogen at a temperature of 1000 to 1400 ° C. to obtain lanthanum silicate powder; and loading the obtained lanthanum silicate powder onto a substrate in a vacuum chamber, and then vacuum thermally depositing LaF ₃ crystals having a purity of 99% or higher on the surface of the lanthanum silicate powder, thereby modifying the surface with lanthanum fluoride (LaF ₃ ) Lanthanum silicate It may be prepared by a method including; preparing a.

At this time, the vacuum chamber is equipped with a conventional vacuum pump, and the pressure inside the vacuum chamber is preferably 1×10 ^-6 to 1×10 ^-10 Torr. In addition, the substrate in the vacuum chamber loaded with the lanthanum silicate powder may be maintained at 400 to 600 °C. In addition, the LaF ₃ crystal having a purity of 99% or more may be loaded into a source boat, and the source boat may be installed separately from the substrate at a distance of 3 to 10 cm.

The lanthanum silicate is preferably contained in the range of 1 to 10 parts by weight. If the content of lanthanum silicate is too small, there is a problem that the above improvement effect may be insufficient, and if the content of lanthanum silicate is too large, it is difficult to expect any further performance improvement effect, and thus price competitiveness may decrease. there is

The phytosilica is a crystalline and biologically active material in the form of fine needles extracted from a plant called Arkocaps phytosilica, and is an eco-friendly new bio material harmless to the human body. The phytosilica has a needle-like structure in which capillaries are formed and contains fine passages, thereby improving excellent adsorption, adhesion performance, and strength reinforcement performance, and in particular, low-temperature properties such as adhesion performance at low temperature and low-temperature flexibility. It can be modified, and it functions to improve weather resistance.

The phytosilica has an average length of 100 to 200 μm; An average width of 10 to 20 μm can be preferably used.

The phytosilica is preferably contained in the range of 1 to 10 parts by weight. If the content of the phytosilica is too small, there is a problem that the above improvement effect may be insufficient, and if the content of the phytosilica is too large, dispersibility and workability may be deteriorated. there is

The performance recovery admixture of the present invention strengthens the cohesion between components, thereby healing microcracks, preventing and preventing larger cracks, and improving adhesive strength and tensile strength to provide excellent waterproof performance. .

The performance recovery admixture is preferably contained in the range of 0.1 to 5% by weight in the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance of the present invention. If the content of the performance recovery admixture is too small, there is a problem that the above improvement effect may be insufficient, and if the content of the performance recovery admixture is too large, durability may decrease or price may increase, resulting in a decrease in price competitiveness. There is a problem with

More specifically, the performance recovery admixture may preferably include 100 parts by weight of maleic anhydride-modified polyolefin and 1 to 10 parts by weight of L-arginine.

First, the maleic anhydride-modified polyolefin functions to heal microcracks, prevent and prevent larger cracks, and improve adhesive strength and tensile strength to provide excellent waterproof performance.

The maleic anhydride-modified polyolefin may preferably be a polyolefin grafted with 0.5 to 2.0% by weight of maleic anhydride and having a crystallinity of 5 to 10%.

At this time, the polyolefin is an ethylene-propylene copolymer (EPR), an ethylene-1-butene copolymer (EBR), an ethylene-1-pentene copolymer, an ethylene-1-octene copolymer (EOR), a propylene-1-butene copolymer It may be at least one selected from the group consisting of a polymer (PBR), a propylene-1-pentene copolymer, a propylene-1-octene copolymer (POR), and mixtures thereof.

Hereinafter, the content of other components constituting the performance recovery admixture is based on 100 parts by weight of the maleic anhydride-modified polyolefin.

The L-arginine serves to improve the adhesive strength by combining with the maleic anhydride-modified polyolefin to enhance the cohesive force between the components, thereby providing excellent waterproof performance.

The L-arginine is preferably contained in the range of 1 to 10 parts by weight based on 100 parts by weight of the maleic anhydride-modified polyolefin. When the content of the L- arginine is too small, there is a problem that the above improvement effect may be insufficient, and when the content of the L- arginine is too large, there is a problem that the thermal stability may be lowered.

In addition, the performance recovery admixture is based on 100 parts by weight of the maleic anhydride-modified polyolefin, 1 to 10 parts by weight of milk protein fiber having an amino acid content of 25 to 35% by weight and N-benzhydryl quino represented by the following formula (1) It may further include 0.1 to 5 parts by weight of a clidin derivative. Thereby, there is an effect that can further improve the above effect.

[Formula 1]

In the above formula,

R ₁ is hydrogen or a C1 to C4 alkoxy group;

R ₂ is hydrogen or a C1 to C4 alkyl group.

At this time, the milk protein fiber having an amino acid content of 25 to 35% by weight combines with the maleic anhydride-modified polyolefin together with the L-arginine to further strengthen the cohesive force between the components, thereby healing microcracks and larger cracks. Not only does it prevent and prevent it, but it also functions to greatly improve the adhesive strength and tensile strength.

Milk protein fibers having a content of 25 to 35% by weight of the amino acid are preferably contained in a range of 1 to 10 parts by weight based on 100 parts by weight of the maleic anhydride-modified polyolefin. If the content of the milk protein fiber containing 25 to 35% by weight of the amino acid is too small, there is a problem that the above improvement effect may be insufficient, and the content of the milk protein fiber having the amino acid content of 25 to 35% by weight If there are too many of them, there is a problem that thermal stability may be deteriorated.

In addition, the N-benzhydryl quinuclidine derivative represented by Formula 1 further strengthens the cohesive force between the components, thereby healing microcracks and preventing and preventing larger cracks, as well as heat resistance stability, shear adhesion strain (%), it functions to improve durability such as chemical resistance and chloride ion permeation resistance.

The N-benzhydryl quinuclidine derivative represented by Formula 1 is 2-(diphenylmethyl)-N-(2-methoxybenzyl)quinuclidin-3-amine (2-(Diphenylmethyl)-N- (2-methoxybenzyl)quinuclidin-3-amine); and (2S,3S)-2-(diphenylmethyl)-N-[2-methoxy-5-(2-methyl-2-propanyl)benzyl]quinuclidin-3-amine ((2S,3S) -2-(Diphenylmethyl)-N-[2-methoxy-5-(2-methyl-2-propanyl)benzyl]quinuclidin-3-amine) may be mixed in a weight ratio of 1:1.

The N-benzhydryl quinuclidine derivative represented by Formula 1 is preferably contained in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the maleic anhydride-modified polyolefin. If the content of the N-benzhydryl quinuclidine derivative represented by Formula 1 is too small, there is a problem that the above improvement effect may be insufficient, and the N-benzhydryl quinuclidine derivative represented by Formula 1 If the content of is too large, it is difficult to expect further performance improvement, and there is a problem in that price competitiveness may be lowered.

The petroleum resin of the present invention reduces viscosity, increases compatibility, mixing and processability between polymers to improve workability, increases heat resistance to prevent dripping, strong adhesive performance regardless of temperature change, crack prevention, In particular, it functions to realize anti-crack performance, waterproofness and long-term storage at low temperatures.

The petroleum resin may be one or more selected from the group consisting of C5 petroleum resin, C9 petroleum resin, and mixtures thereof.

The petroleum resin is preferably contained in the range of 0.1 to 5% by weight in the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance of the present invention. If the content of the petroleum resin is too small, there is a problem that the above-described improvement effect may be insufficient, and if the content of the petroleum resin is too large, the strength performance may be reduced or the price may increase, thereby reducing price competitiveness There is a problem.

The plasticizer of the present invention functions to reduce viscosity, increase compatibility between polymers, mixing and processability to improve workability, and further improve low-temperature flexibility and adhesive performance.

These plasticizers are generally used in the art and the type is not particularly limited, but non-limiting examples of the plasticizers include dioctylphthalate (DOP), dibutylphthalate (DBP), and diisononylphthalate (DINP). ) phthalic acid esters such as the like; At least one selected from the group consisting of glycol oil, mineral spirit oil, and mixtures thereof may be used.

The plasticizer is preferably contained in the range of 0.1 to 5% by weight in the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance of the present invention. If the content of the plasticizer is too small, there is a problem that the above improvement effect may be insufficient, and if the content of the plasticizer is too large, there is a problem that strength and durability may be lowered.

On the other hand, another embodiment of the present invention is an asphalt bridge waterproofing construction method using the highly functional modified asphalt-based waterproofing material composition having the excellent waterproof performance,

Step of arranging the surface to remove foreign substances and impurities in the bridge waterproofing construction site; forming a primer layer by applying a primer; Forming an asphalt waterproofing layer by applying a highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance using an asphalt coating film waterproofing heating equipment; Installing a fiber protective material; And paving the bridge surface by laying and compacting the asphalt concrete to form an asphalt pavement layer, which may include the step of forming asphalt bridge waterproofing.

More specifically, the bridge surface construction target can be applied to both the concrete deck and the steel deck as the base surface of the bridge deck.

In addition, the highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance of the present invention can realize sufficient adhesion to the background surface, so that the application of the primer can be omitted, but the better adhesion improvement effect and integration to the background surface In order to implement the effect, a step of applying a conventional primer commonly used in the art may be further included. As a result, it is possible to implement a more excellent strength reinforcing effect, prevention of moisture increase, and adhesion reinforcing effect. These primers are generally used in the art and are not particularly limited in their kind.

When the application of such a primer is omitted, a schematic construction flow chart of an asphalt bridge waterproofing construction method according to various embodiments of the present invention is shown in FIG. However, the various construction flow charts of the asphalt bridge waterproofing construction method shown in FIG. 1 are only presented as examples, and the asphalt bridge waterproofing construction method of the present invention is not limited thereto.

In addition, various construction flowcharts of the asphalt bridge waterproofing construction method using the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance according to an embodiment of the present invention including forming a primer layer are shown in FIG. 2. However, the various construction flow charts of the asphalt bridge waterproofing construction method shown in FIG. 2 are only presented as examples, and the asphalt bridge waterproofing construction method of the present invention is not limited thereto.

In addition, in the step of forming an asphalt waterproofing layer by applying the high-functional modified asphalt-based waterproofing material composition having excellent waterproofing performance using an asphalt coating film waterproofing heating equipment; After heating and melting in the temperature range of 220 ° C. and completely mixing with each other, it can be applied.

At this time, the high-functional modified asphalt-based waterproofing material composition having excellent waterproof performance may be heated, melted, and transferred in a temperature range of 180 to 220 ° C. using a heated transfer means such as a cougar. A schematic perspective view of the asphalt coating film waterproof heating equipment is shown in FIG. However, the asphalt coating waterproof heating equipment shown in FIG. 3 is only presented as an example, and the asphalt coating waterproof heating equipment that can be used in the present invention is not limited thereto.

In addition, the highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance may be applied multiple times in a range of 1 to 5 times until the asphalt waterproofing layer has a thickness of 3 to 4 mm.

In addition, in the step of installing the fiber protective material, the fiber protective material is generally used in the art and the type is not particularly limited, but, for example, glass fiber, carbon fiber, aramid fiber, basalt fiber and Based on one or more materials selected from the group consisting of these mixed fibers, one made in a net or grid shape and / or non-woven fabric may be used. As a result, there is an effect of minimizing damage to the waterproof layer of the asphalt-based coating film, further reinforcing the strength of the bridge surface, and further suppressing crack propagation and deformation to increase durability.

In addition, after the step of installing the fiber protective material, the step of forming an asphalt pavement layer may be performed by paving the bridge surface by laying and compacting the asphalt concrete.

According to the highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance and the asphalt bridge waterproofing construction method using the same according to an embodiment of the present invention, the tensile strength, elongation, tensile adhesive strength, shear adhesive strength, and shear adhesive strain of the waterproof coating film It has the effect of providing excellent waterproof performance by improving dimensional stability (%) and heat resistance. In particular, it has excellent tensile performance (tensile strength, elongation) at high temperatures, and thus has the effect of greatly improving followability of the waterproof coating film according to the temperature change and climate change during the construction process. As a result, it is perfectly integrated with excellent adhesion between the rigid bridge concrete floor plate and the ductile asphalt pavement layer having different coefficients of thermal expansion, effectively preventing deterioration in shear performance and tensile adhesion of the asphalt pavement layer, thereby preventing high load vehicles and It has the effect of effectively solving the problem of the ascon pavement layer falling off due to sudden braking of a high-speed vehicle or being torn by sharp working tools during bridge waterproofing construction. In addition, it prevents cracks, deformation, lifting, peeling or fracture caused by climate change, and at the same time forms a waterproof coating film that is watertight and has excellent durability against alkali and acid, thereby realizing excellent waterproof and water repellent functions, It effectively blocks the permeation of deterioration factors (moisture, snow remover, seawater, acid rain, chemical substances, etc.) from, and has the effect of dramatically increasing the service life of structures such as roads and bridges.

Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various modifications are made by those skilled in the art within the scope of the technical idea of the present invention. this is possible

[Production Example 1]

Preparation of magnesium hydroxide whose surface is modified with fatty acids

100 parts by weight of magnesium hydroxide having an average particle diameter of 2.4 μm was mixed with 200 parts by weight of toluene and 45 parts by weight of tall fatty acid (TOFA), kneaded and filtered, and then dried at 70 ° C. to prepare magnesium hydroxide whose surface is modified with fatty acids did

[Production Example 2]

Preparation of magnesium hydroxide whose surface is modified with fatty acids

100 parts by weight of magnesium hydroxide having an average particle diameter of 2.4 μm was mixed with 200 parts by weight of toluene, 45 parts by weight of tall oil fatty acid (TOFA) and 9 parts by weight of distearyl-3,3'-thiodipropionate, kneaded and filtered. Then, by drying at 70 ° C., magnesium hydroxide whose surface is modified with fatty acids was prepared.

[Production Example 3]

Manufacture of lanthanum silicate

After preparing a mixed powder by mixing and ball-milling La(NO ₃ ) ₃ powder and SiO ₂ powder, the mixed powder was heat-treated at a temperature of 1200 ° C. in a nitrogen gas atmosphere containing 15% by volume of hydrogen to obtain lanthanum silicate powder was manufactured.

[Production Example 4]

The surface is lanthanum fluoride (LaF ₃ ) Preparation of lanthanum silicate modified by

After preparing a mixed powder by mixing and ball-milling La(NO ₃ ) ₃ powder and SiO ₂ powder, the mixed powder was heat-treated at a temperature of 1200 ° C. in a nitrogen gas atmosphere containing 15% by volume of hydrogen to obtain lanthanum silicate powder was manufactured.

Loading the lanthanum silicate powder obtained above on a substrate in a vacuum chamber, loading 99.995% pure LaF ₃ crystals on a source boat adjusted to a distance of 5 cm from the substrate, and then using an exhaust valve and a vacuum pump. Thus, the pressure of the chamber was maintained at 1×10 ^-6 Torr or less. In addition, the temperature of the substrate loaded with the lanthanum silicate powder was maintained at 500 °C. At this time, the temperature of the sidewall of the chamber was maintained at 25 °C in the low vacuum atmosphere of the vacuum chamber. Thereafter, the thermal evaporation power is set to 200 W, and at the same time, a current is applied to the electric filament so that the LaF ₃ crystal is slowly evaporated due to heat, and the vapors are diffused to the substrate, and the diffused vapor is applied to the lanthanum silicate powder loaded on the rotating substrate. A lanthanum silicate whose surface was modified by lanthanum fluoride (LaF ₃ ) was prepared by vacuum thermal evaporation such that it was deposited on the surface for 45 seconds.

<Examples and Comparative Examples>

After stirring with the ingredients and contents shown in Table 1 below, mixing and melting at a temperature of about 200 ° C., a highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance and a comparative waterproofing material composition were prepared.

Classification (% by weight) Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 straight asphalt
[AP-5] 72 72 72 72 72 Highly functional polymer modifier 11 11 11 11 11 (parts by weight) Styrene-butadiene rubber (SBR) 100 100 100 100 100 Styrene-methyl methacrylate copolymer (SMMA) 27 27 27 - - Styrene-Isoprene-Styrene
Block Copolymer (SIS) - - - - 27 Polypropylene carbonate ¹⁾ 23 23 23 - 23 tetramethyl succinonitrile 5.3 5.3 5.3 - - 3,4-dichloroisothiazole
carboxylic acid 5 5 5 - - Bis(3-triethoxysilylpropyl)tetra sulfide (TSS) 7 7 7 - - 3-Aminopropyltriethoxy
Silane - - - - 7 Ferulic acid 0.7 0.7 0.7 - - Highly functional inorganic reinforcing agent 7 7 7 7 7 (parts by weight) calcium carbonate 100 100 100 100 100 magnesium hydroxide
(Average particle diameter: 2.4 μm) 20 20
[Production Example 1] 20
[Production Example 2] - 20 ballconscoit 20 20 20 - 20 lanthanum silicate 8
[Production Example 3] 8
[Production Example 3] 8
[Production Example 4] - - phytosilica ²⁾ 7 7 7 - - performance recovery admixture 4 4 4 4 4 (parts by weight) Maleic anhydride modified ethylene-1-octene copolymer (EOR) ³⁾ 100 100 100 - - Ethylene-1-octene copolymer (EOR) - - - - 100 L-Arginine 5 5 5 - - milk protein fiber ⁴⁾ - 4.8 4.8 - - N-Benzhydryl Quinuclidine
derivative_
2-(diphenylmethyl)-N-(2-methoxybenzyl)quinuclidin-3-amine - 1.2 0.6 - - N-Benzhydryl Quinuclidine
derivative_
(2S,3S)-2-(diphenylmethyl)-N-[2-methoxy-5-(2-methyl-2-propanyl)benzyl]quinuclidin-3-amine - - 0.6 - - C5 Petroleum Balance 3 3 3 3 3 Plasticizer_Dioctylphthalate (DOP) 3 3 3 3 3 ¹⁾ Polypropylene carbonate: SK Energy GreenPol product (weight average molecular weight; 100,000 g/mole, has a hydroxyl group at one end of the molecular chain, glass transition temperature; 35 ℃)
²⁾ Phytosilica: with an average length of 150 μm; An average width of 17 μm was used.
³⁾ Maleic anhydride modified ethylene-1-octene copolymer (EOR): manufactured by Dow Chemical Co., Ltd., product name "AMPLIFY GR216", weight average molecular weight 150,000, maleic anhydride modified amount = 0.8% by weight Used.
⁴⁾ Milk protein fiber: using amino acid content of 31% by weight.

Hereinafter, prepared according to Examples according to the present invention and Comparative Examples 1 and 2 so that the characteristics of the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance prepared according to Examples 1 to 3 can be more easily grasped. It shows the experimental results comparing the characteristics of the waterproofing composition for comparison.

<Test Example>

With respect to the highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance prepared according to Examples 1 to 3 and the comparative waterproofing material composition prepared according to Comparative Examples 1 and 2, quality standards for waterproofing material for concrete bridges (KS F 4932 ) A physical property test was conducted according to, and the results are shown in Table 2 below.

Test Items Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Workability Good Good Good Good Good Non-volatile (%) 81 83 84 68 75 Seal
Performance tensile strength
(N/㎟) untreated 45 47 48 32 38 alkali treatment 42 45 45 23 33 heat treatment 43 44 45 21 34 elongation
(%) untreated 585 595 600 165 225 alkali treatment 560 575 575 135 205 heat treatment 565 565 570 140 200 shear
adhesion
Performance Shear adhesion strength
(N/㎟) -20℃ 2.2 2.3 2.3 0.5 1.3 20℃ 1.6 1.7 2.0 0.4 1.1 Shear bonding
Strain (%) -20℃ 0.7 0.7 1.0 0.3 0.4 20℃ 1.5 1.6 1.8 0.4 1.0 tensile adhesive strength
(N/㎟) -20℃ 1.5 1.7 1.8 0.7 0.9 20℃ 0.8 1.1 1.3 0.4 0.7 water permeability not pitched
not not pitched
not not pitched
not pitcher occurrence pitcher occurrence Chloride ion permeation resistance (coulombs) 70 60 55 135 95 Chemical resistance (10% sulfuric acid) clear clear clear occurrence of excitation clear Chemical resistance (10% HCl) clear clear clear occurrence of excitation occurrence of excitation Chemical resistance (10% caustic soda) clear clear clear occurrence of excitation clear indentation clear clear clear hole hole heat resistant dimension
stability(%) 150℃,
30 minutes 1.0 0.8 0.7 2.1 1.7 fatigue resistance clear clear clear Balance occurrence clear crack resistance -20℃ clear clear clear Balance occurrence Balance occurrence low temperature flexibility -10℃ clear clear clear crack occurrence crack occurrence Tensile adhesion after 7 days of soaking 20℃ 0.7 0.9 1.0 0.3 0.4

As shown in Table 2, the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance prepared according to Examples 1 to 3 of the present invention is compared to the comparative waterproofing material composition prepared according to Comparative Examples 1 and 2, It was confirmed that excellent performance was exhibited.

As described above, those skilled in the art to which the present invention pertains will be able to understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, all of the embodiments described above are illustrative and should be understood as not limiting. The scope of the present invention should be construed as including all changes or modifications derived from the meaning and scope of the claims to be described later and their equivalent concepts rather than the above detailed description included in the scope of the present invention.

Claims (5)

A highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, comprising 60 to 80% by weight of straight asphalt, 5 to 20% by weight of a high functional polymer modifier, 1 to 10% by weight of a highly functional inorganic reinforcing agent, and 0.1 to 5% by weight of a performance recovery admixture. , 0.1 to 5% by weight of a petroleum resin and 0.1 to 5% by weight of a plasticizer;
The high-functional polymer modifier
Styrene-butadiene rubber (SBR) 100 parts by weight, styrene-methyl methacrylate copolymer (SMMA) 20 to 30 parts by weight, polypropylene carbonate 20 to 30 parts by weight, tetramethyl succinonitrile 1 to 10 parts by weight, 3, 1 to 10 parts by weight of 4-dichloroisothiazolecarboxylic acid, 1 to 10 parts by weight of bis(3-triethoxysilylpropyl)tetra sulfide (TSS), and 0.1 to 5 parts by weight of ferulic acid;
The highly functional inorganic reinforcing agent
100 parts by weight of calcium carbonate, 10 to 30 parts by weight of magnesium hydroxide, 10 to 30 parts by weight of volkonskoite, 1 to 10 parts by weight of lanthanum silicate and 1 to 10 parts by weight of phytosilica;
The performance recovery admixture
A highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, comprising 100 parts by weight of maleic anhydride-modified polyolefin and 1 to 10 parts by weight of L-arginine.
According to claim 1,
The surface of the lanthanum silicate is modified with lanthanum fluoride (LaF ₃ );
Lanthanum silicate whose surface is modified by lanthanum fluoride (LaF ₃ )
preparing a mixed powder by mixing and ball-milling La(NO ₃ ) ₃ powder and SiO ₂ powder; heat-treating the mixed powder in a nitrogen gas atmosphere containing 2 to 25 vol% of hydrogen at a temperature of 1000 to 1400 ° C. to obtain lanthanum silicate powder; and loading the obtained lanthanum silicate powder onto a substrate in a vacuum chamber, and then vacuum thermally depositing LaF ₃ crystals having a purity of 99% or higher on the surface of the lanthanum silicate powder, thereby modifying the surface with lanthanum fluoride (LaF ₃ ) Lanthanum silicate A highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, characterized in that produced by a method comprising the step of preparing a.
According to claim 1,
The performance recovery admixture
Based on 100 parts by weight of the maleic anhydride-modified polyolefin, 1 to 10 parts by weight of milk protein fiber having an amino acid content of 25 to 35% by weight and 0.1 to 5 parts by weight of an N-benzhydryl quinuclidine derivative represented by the following formula (1) A highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance, characterized in that it further comprises a part.
[Formula 1]

In the above formula,
R ₁ is hydrogen or a C1 to C4 alkoxy group;
R ₂ is hydrogen or a C1 to C4 alkyl group.
According to claim 3,
The N-benzhydryl quinuclidine derivative represented by Formula 1 is
2- (diphenylmethyl) -N- (2-methoxybenzyl) quinuclidin-3-amine (2- (Diphenylmethyl) -N- (2-methoxybenzyl) quinuclidin-3-amine); and (2S,3S)-2-(diphenylmethyl)-N-[2-methoxy-5-(2-methyl-2-propanyl)benzyl]quinuclidin-3-amine ((2S,3S) -2-(Diphenylmethyl)-N-[2-methoxy-5-(2-methyl-2-propanyl)benzyl]quinuclidin-3-amine) in a 1: 1 weight ratio. High-functional modified asphalt-based waterproofing material composition having.
An asphalt bridge waterproofing construction method using the highly functional modified asphalt-based waterproofing material composition having excellent waterproof performance according to any one of claims 1 to 4,
Step of arranging the surface to remove foreign substances and impurities in the bridge waterproofing construction site; forming a primer layer by applying a primer; Forming an asphalt waterproofing layer by applying a highly functional modified asphalt-based waterproofing material composition having excellent waterproofing performance using an asphalt coating film waterproofing heating equipment; Installing a fiber protective material; and forming an asphalt bridge pavement layer by paving the bridge surface by paving and compacting asphalt bridge surface.