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A water-soluble aggregate-asphalt interface antirust modifier and its preparation method and application

A water-soluble modifier technology, which is applied in the field of water-soluble aggregate-asphalt interface anti-rust modifier and preparation, can solve problems affecting road quality, adhesion indicators that cannot meet the specification requirements, and rust spots on the road surface. Achieve the effects of reducing the use of aggregates and transportation costs, inhibiting the rusting of the road surface, and enhancing the adhesion

Active Publication Date: 2017-03-01
GUANGDONG GT TECH ROAD MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although acidic aggregates such as granite and sandstone are hard in nature and have strong wear resistance, which can meet the requirements of wear resistance and bearing capacity of asphalt pavement, their bonding force with asphalt is weak, and the asphalt film is prone to fall off and pits appear. Groove and other damage
Moreover, different types of acidic aggregates contain iron and other metal elements to varying degrees, which may cause damage such as rust spots on the road surface
Rust on the pavement is a problem that seriously affects the quality of the road. There are large areas of rust spots on the entire pavement surface of some expressways. The extracted aggregates are divided into three types: blue gray, white and red. After testing, the iron content is 0.82% respectively. , 0.94% and 1.72%, and the adhesion index can no longer meet the specification requirements. Among them, the adhesion of the pan-rusty red aggregate is only level 2, and the other two are level 3

Method used

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  • A water-soluble aggregate-asphalt interface antirust modifier and its preparation method and application
  • A water-soluble aggregate-asphalt interface antirust modifier and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) 15 parts of silane coupling agent γ-glycidyl etheroxypropyl trimethoxysilane (15g), 1 part of water-soluble lubricating aid (aqueous emulsion of dimethyl silicone oil), 0.5 parts of alkylbenzenesulfonate Sodium acid emulsifier and 25 parts of water-soluble epoxy film-forming resins are dissolved in 20 parts of deionized water, stirred and mixed evenly;

[0032] (2) 8 parts of p-chlorobenzoic acid promotors, 6.5 parts of aminoethylpiperazine, 7 parts of rust inhibitors (by weight ratio being 0.5:1 anhydrous sodium silicate and particle diameter are nanometer dioxide of 90nm Silicon powder) and 1 part of amino acid surfactant were dissolved in 16 parts of deionized water, stirred and mixed evenly.

[0033] (3) Mix the solutions obtained in step (1) and step (2), and stir and mix evenly at room temperature to obtain a water-soluble aggregate-asphalt interface rust-proof modifier.

[0034] The application of the water-soluble aggregate-asphalt interface antirust modifi...

Embodiment 2

[0043] (1) Mix 18 parts of silane coupling agent γ-glycidyl etheroxypropylmethyl dimethoxysilane (18g), 1.5 parts of water-soluble lubricating aid (aqueous emulsion of dimethyl silicone oil), 2 parts of alkane Dissolve sodium phenylbenzenesulfonate emulsifier and 20 parts of water-soluble epoxy film-forming resin in 20 parts of deionized water, stir and mix evenly;

[0044] (2) 8 parts of triethanolamine accelerators, 7 parts of aminoethylpiperazine, 8.5 parts of rust inhibitors (by weight ratio being 0.4:1 anhydrous sodium silicate and particle diameter are composed of nano-silica sol of 5nm ) and 1.5 parts of betaine-type surfactants were dissolved in 15 parts of deionized water, stirred and mixed evenly.

[0045] (3) Mix the solutions obtained in step (1) and step (2), and stir and mix evenly at room temperature to obtain a water-soluble aggregate-asphalt interface rust-proof modifier.

[0046] The application of the water-soluble aggregate-asphalt interface antirust modif...

Embodiment 3

[0050] (1) 5 parts of silane coupling agent γ-glycidyl ether oxypropyl methyl dimethoxysilane (5g), 0.5 part of water-soluble lubricating aid (polyether modified polysiloxane), 0.3 Part of gum arabic emulsifier and 30 parts of water-soluble acrylic film-forming resin are dissolved in 10 parts of alcohol, stirred and mixed evenly;

[0051] (2) 3 parts of tin protochloride promotor, 10 parts of diethylenetriamine, 3 parts of antirust agents (by weight ratio being 6:1 sodium silicate pentahydrate and particle diameter are the nano silica powder of 50nm Composition) and 0.3 parts of betaine-type surfactants were dissolved in 10 parts of alcohol, stirred and mixed evenly.

[0052] (3) Mix the solutions obtained in step (1) and step (2), and stir and mix evenly at room temperature to obtain a water-soluble aggregate-asphalt interface rust-proof modifier.

[0053] The application of the water-soluble aggregate-asphalt interface antirust modifier of this embodiment in the surface mod...

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Abstract

The invention belongs to the technical field of surface modification agents, and particularly relates to a water-soluble aggregate-asphalt interface rust-proof modifying agent and a preparation method and application. The surface modification agent comprises the following components in parts by weight: 20-40 parts of a solvent, 20-30 parts of water-soluble film-forming resin, 5-20 parts of a silane coupling agent, 3-10 parts of an anti-rust agent, 3-10 parts of an accelerant, 0.5-3 parts of a water-soluble lubricating additive, 0.3-2 parts of an emulsifying agent, 0.3-2 parts of a surface active agent and 5-10 parts of a processing agent. The water-soluble aggregate-asphalt interface rust-proof modifying agent provided by the invention can increase the adhesional degree and improve the rust-proof function of aggregate, can reduce the usage and transportation costs of aggregate, can effectively improve the asphalt pavement quality and prolong the service life of the asphalt pavement, and is suitable for large-scale popularization and application.

Description

technical field [0001] The invention belongs to the technical field of surface modifiers for road engineering materials, and in particular relates to a water-soluble aggregate-asphalt interface antirust modifier, a preparation method and an application. Background technique [0002] my country's highway construction is in a stage of vigorous development. According to the "National Highway Network (2013-2030)" issued by the Ministry of Transport, by 2030, the total scale of ordinary national highways will reach 265,000 kilometers, and the national highway mileage Reach 118,000 kilometers, and invest about 4.7 trillion yuan for this. Among them, more than 90% of expressways adopt asphalt pavement structure. [0003] As the main pavement form of national high-grade highways, asphalt pavement embodies superior functionality. However, with the continuous emergence of early diseases such as road surface water damage, rutting and cracks, existing physical projects have caused huge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42
Inventor 贺紫晗虞将苗罗晗杨伟儒杨逸傅翼飞吴焯雅黄鸿浩谢光源
Owner GUANGDONG GT TECH ROAD MATERIAL TECH CO LTD
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