Pavement hot-pouring crack pouring glue with storage stability and preparation method thereof

Abstract

Belonging to the technical field of preparation of pavement hot-pouring crack pouring glues, the invention discloses a pavement hot-pouring crack pouring glue with storage stability and a preparationmethod thereof, and solves the problems that segregation can occur among the components of existing crack pouring glues in the storage process, and the segregation among the components can seriously affect the pavement service performance of crack pouring glues. The crack pouring glue comprises: 60%-70% of matrix asphalt, 3%-6% of SBS, 12%-20% of rubber powder, 0.02%-0.04% of a stabilizer and 6%-20% of a plasticizer. The preparation method of the crack pouring glue includes the steps of: firstly, conducting low speed stirring and swelling on the matrix asphalt and SBS, then performing high speed shearing, then adding the stabilizer, and further conducting shearing; mixing the rubber powder with the plasticizer, conducting low speed stirring and swelling, then adding the swelled mixture ofthe rubber powder and the plasticizer into the mixed system of the asphalt and SBS, and performing high-speed shearing; and finally conducting constant-temperature development so as to obtain the hot-pouring crack pouring glue with storage stability. The method provided by the invention can be applied to preparation of the pavement hot-pouring crack pouring glue with storage stability.

Description

technical field [0001] The invention belongs to the technical field of preparation of joint-filling glue for roads, and in particular relates to joint-filling glue for roads and a preparation method thereof. Background technique [0002] Among the many diseases of asphalt pavement, crack is the most common, most likely and earliest disease of asphalt pavement. The existence of cracks seriously affects the long-term performance and service life of asphalt pavement, and the damage it produces almost accompanies the entire service process of the pavement, and aggravates with the growth of road age. Studies have shown that filling cracks is the best treatment method with the best benefit-cost ratio among all preventive maintenance measures for pavement. Common grouting materials are roughly divided into hot grouting grouting materials, cold grouting grouting materials and chemical materials. Among them, the polymer-modified asphalt joint-filling material (hereinafter referred ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that segregation will occur between the various components of the existing joint glue during storage, and the segregation between the components will have a serious impact on the road service performance of the joint glue , and proposed a storage-stable pavement heat-filling joint-filling glue and its preparation method

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