Anti-rutting asphalt and preparation method thereof

Abstract

The invention discloses anti-rutting asphalt and a preparation method thereof, and relates to the technical field of asphalt preparation, and the anti-rutting asphalt is prepared from the following raw materials: matrix asphalt, a basic emulsifier, a co-emulsifier, rubber powder, a plasticizer, a stabilizer, an accelerant, epoxy resin, naphthenic oil, an anti-aging agent, modified bentonite, sulfur and an anti-slip agent. The emulsifier used by the modified emulsified asphalt is formed by compounding and combining the basic emulsifier and the co-emulsifier, and then adding a certain amount of stabilizer to enhance the stability of the emulsified asphalt, so that the finally produced emulsified asphalt product has good performance and high storage stability, and has the characteristics of short demulsification time, high storage stability and the like when being used for pavement construction projects, and high adhesion performance with aggregate and the like; and the anti-rutting asphalt is simple in preparation process, low in cost, large in density, high in strength, good in anti-rutting effect, free of additional anti-rutting additives and the like, capable of effectively preventing the problems of upheaval, waves and upheaval, and high in high-temperature stability.

Description

technical field [0001] The invention relates to the technical field of asphalt preparation, in particular to anti-rutting asphalt and a preparation method thereof. Background technique [0002] Road construction is the foundation of national economic development, especially in densely populated or economically underdeveloped areas, roads play a vital role. With the rapid increase of modern vehicles and the increasing traffic load, the requirements for road pavement are becoming more and more stringent, while asphalt pavement is characterized by good driving comfort, low noise, smooth surface, no joints, short construction period, and maintenance and repair. The advantages of simplicity, recyclability, and suitable phase construction are dominant in the road construction system. As one of the indispensable and important materials for asphalt pavement, asphalt is an important support for the rapid development of the national economy. [0003] The construction scale of highwa...

AI Technical Summary

Problems solved by technology

Because ordinary asphalt has performance shortcomings such as poor adhesion, low elongation, high wax content, and high temperature sensitivity, it is difficult to use it on high-grade highways; at the same time, due to the rapid increase in traffic volume due to the development of the national economy, the vehicle load capacity The substantial increase and the large temperature difference between north and south, winter and summer in my country have put forward higher requirements on the quality of asphalt pavement. In the case of extreme weather conditions in the north or south, the asphalt modified pavement in the prior art is still unable to do what it wants. The modified pavement is melted and softened, and the extremely cold winter will cause deep cracks on the modified pavement, which is obviously not suitable for the extreme cold in the north or the hot weather in the south