Anti-rut agent and preparation method therefor

Abstract

The invention relates to an anti-rut agent, which is characterized in that the anti-rut agent is composed of the following materials by weight: 40-50% of trivalent ferric salt, 40-50% of synthetic rubber and 10-12% of sulphur stabilizer. A preparation method for the anti-rut agent is characterized in that the steps are as follows: (1), the synthetic rubber is smashed to the degree that the fineness is less than 80 meshes; (2), the smashed synthetic rubber and the sulphur stabilizer are added into trivalent ferric salt solution according to the component proportion; and (3), the mixed solution is stirred uniformly under the normal temperature, so as to obtain the anti-rut agent. The raw materials of the anti-rut agent are obtained easily, the preparation method is simple, the excellent effect can be realized with smaller dosage of the raw materials, the cost is low, the mixing time is short, and the energy consumption is low; the construction is realized under the normal temperature, so that the construction process is controlled easily, and no pollution is discharged, thereby improving the high-temperature stability and the anti-rut capability of an asphalt mixture and realizing higher innovation. The preparation method for the anti-rut agent is simple in operation, is controlled easily and does not cause pollution.

Description

technical field [0001] The invention belongs to the field of pavement materials, in particular to an anti-rutting agent for enhancing the anti-rutting ability of asphalt mixture and a preparation method thereof. Background technique [0002] The problem of early damage to the asphalt pavement of expressways has become a prominent contradiction affecting the healthy development of highways in our country. The problem of premature pavement damage exists to varying degrees in various parts of the country. And it shows the characteristics of early damage time, wide damage range and heavy damage degree. In the early damage of asphalt pavement, the high temperature rutting damage is the most prominent, not only in the south, but also in the north. At present, in order to solve the rutting damage of asphalt pavement and improve the anti-rutting ability of asphalt mixture, the common methods mainly include: [0003] 1. Grading improvement. Grading improvement is a double-edged sw...

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Problems solved by technology

[0006] At present, there are many kinds of anti-rutting agent products on the market, and most of them are asphalt mixture additives composed of various polymers. However, there are the following problems: large amount of addition, relatively high cost; prolonged mixing time, increased energy consumption; need to increase construction temperature, increase construction control difficulty and pollution emissions; anti-rutting ability The improvement is relatively low

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