Pavement quick-repair asphalt mixture, and preparation method and application method thereof

Abstract

The invention relates to a pavement quick-repair asphalt mixture, and a preparation method and application method thereof. The pavement quick-repair asphalt mixture is prepared from water, aggregate, water-based epoxy resin modified emulsified asphalt, ore powder and cement according to the weight ratio of (0-5):100:(5-10):(1-10):(0-3). The pavement quick-repair asphalt mixture is simple and easy to operate, is convenient and quick for construction, does not have volatile contaminants, can implement in-time opening to traffic, and has low requirements for the construction environment.

Description

technical field [0001] The invention belongs to the field of construction, and relates to an asphalt mixture for rapid pavement repair, a preparation method and a use method thereof. Background technique [0002] With the continuous development of my country's highway network, the repair of damaged pavement is becoming more and more important. Usually, hot-mix asphalt is used as the repair material for asphalt concrete pavement potholes, but due to the influence of climate and workload, it is often impossible to achieve timely and rapid repair. Repairing, especially in spring and winter, will lead to more serious road surface diseases such as subgrade muddying. In recent years, cold-patch asphalt materials have been used to quickly repair asphalt pavement diseases. [0003] The currently used cold patch asphalt mixture mainly includes the following two types: solvent type cold patch mixture and emulsion type cold patch mixture. [0004] Among them, the solvent-based cold-pat...

AI Technical Summary

Problems solved by technology

After being paved on the road and compacted, the diluent in the mixture will gradually volatilize under the influence of external environmental factors, and gradually form a strong whole. However, the volatilization of the solvent will easily cause environmental pollution, and the early Low strength, slow strength growth, only suitable for temporary and emergency rapid repair of road surface, difficult to meet the requirements of high-grade highways, especially expressway rapid repair

[0005] Emulsified asphalt is used as the binder of emulsion-type cold patching mixture. Emulsified asphalt has the characteristics of no pollution and easy construction. However, the disadvantages of traditional emulsified asphalt mixture, such as low viscosity and low strength of emulsified asphalt, limit its application range.

Images