Asphalt mixture MLC modifier

Abstract

The invention discloses an asphalt mixture MLC modifier. The asphalt mixture MLC modifier comprises a powdery component A and a granular component B, wherein the component A comprises polyethylene glycol terephthalate, polyamide, polyolefin, 10-30 parts by mass of aromatic hydrocarbon oil, acrylamide and hydrazine hydrate. The component B comprises a hyperbranched polymer, rubber, natural latex, avulcanizing agent, a surfactant, tackifying resin, zinc oxide and carbon black. According to the MLC modifier disclosed by the invention, the anti-rutting capability of a pavement is improved; the anti-stripping performance of aggregate is improved, and water damage resistance is improved; the anti-fatigue life of the pavement is prolonged, so that the durability of the pavement is improved. Theconstruction temperature is reduced; an asphalt mixture can be mixed and paved at a lower temperature; the compaction effect is improved; the PG grade of the modified asphalt is improved, and the original low-viscosity characteristic of the matrix asphalt is maintained; energy consumption is reduced, and the pollution discharge is reduced.

Description

technical field [0001] The invention relates to the technical field of asphalt modifiers, in particular to an asphalt mixture MLC modifier. Background technique [0002] In the process of pavement maintenance and reconstruction, conventional asphalt mixtures are difficult to meet the road use requirements under complex climate conditions such as high temperature and rainy conditions. Not only the durability of the pavement cannot be satisfied, but the existing domestic modifiers are generally only for a single To improve performance, there is a lack of technical support to improve road performance in many aspects, and there are many problems in the process of use. For example, anti-rutting modifiers that can improve the high-temperature performance of the pavement are less flexible, and the modified asphalt is prone to cracking in low-temperature environments; high-modulus agents that can improve the strength of the pavement will reduce the asphalt when the modulus is too hi...

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Problems solved by technology

[0002] In the process of pavement maintenance and reconstruction, conventional asphalt mixtures are difficult to meet the road use requirements under complex climate conditions such as high temperature and rainy conditions. Not only the durability of the pavement cannot be satisfied, but the existing domestic modifiers are generally only for a single Improvement with performance, lack of technical support to improve road performance in many aspects, there are many problems in the process of use

For example, anti-rutting modifiers that can improve the high-temperature performance of the pavement are less flexible, and the modified asphalt is prone to cracking in low-temperature environments; high-modulus agents that can improve the strength of the pavement will reduce the asphalt when the modulus is too high. The ability of the mixture to resist water damage; the anti-stripping agent with improved water damage resistance is easy to segregate with the asphalt during use due to the large difference in density between the asphalt and the asphalt, thereby reducing the road performance of the asphalt mixture; Due to the high viscosity of SBS modified asphalt with various properties of asphalt mixture, the required production and construction temperatures are relatively high, resulting in serious pollution emissions and energy consumption

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