Anti-stripping agent for improving asphalt and stone adhesiveness and preparation method thereof

Abstract

The invention relates to an anti-stripping agent for improving asphalt and stone adhesiveness. The anti-stripping agent is characterized by consisting of the following components in percentage by mass: 0.4-0.6 percent of aluminum chloride hexahydrate and 9.4-9.6 percent of drinking water. The anti-stripping agent for improving asphalt and stone adhesiveness is low in construction cost and simple in manufacturing, and after basalt, granite and other acidic stones are treated, the asphalt and stone adhesiveness can be obviously improved, and the water damage resistance of asphalt mixture is improved. The invention also relates to a method for preparing the anti-stripping agent for improving asphalt and stone adhesiveness. The method is characterized by comprising the following steps of: mixing 0.4-0.6 percent of aluminum chloride hexahydrate and 99.4-99.6 percent of drinking water at normal temperature, and uniformly stirring to prepare an aqueous solution. The method for preparing the anti-stripping agent for improving asphalt and stone adhesiveness is easy to operate and easy to implement and does not have special equipment requirements.

Description

technical field [0001] The invention belongs to the field of asphalt pavement materials for road engineering, in particular to an anti-stripping agent for improving the adhesion between asphalt and stone materials and a preparation method thereof. Background technique [0002] Most of the existing pavement materials are mixtures of asphalt and stone. Insufficient adhesion between asphalt and stone will lead to insufficient water damage resistance of the asphalt mixture, which will lead to early water damage such as pits and looseness on the asphalt concrete pavement. As an important damage factor of asphalt pavement, it seriously affects the service life of asphalt pavement. [0003] The traditional methods to improve the adhesion between asphalt and stone include: ① use dry ground slaked lime powder, quicklime powder, and cement as part of the filler; ② add anti-stripping agent to the asphalt; ③ treat the aggregate with lime slurry use. The existing anti-stripping agents ...

AI Technical Summary

Problems solved by technology

Existing anti-stripping agents generally have many raw materials and complicated processes. There are many technical problems in raw material compatibility and process optimization, and the production cost is high, so they are not suitable for popularization and application.

Moreover, traditional anti-stripping materials have disadvantages such as high mutual repellency with asphalt or stone, poor stability, and environmental pollution.

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