High-performance road joint glue and preparation method thereof

Abstract

A high-performance road joint glue and a preparation method thereof are disclosed. The road joint glue comprises the raw materials in parts by weight: 80-110 parts of modified asphalt, 30-50 parts ofchloroprene, 10-30 parts of petroleum resin, 10-30 parts of rubber powder, 5-8 parts of asphalt softener, 6-12 parts of styrene-butadiene-styrene block copolymer, 10-20 parts of asphalt stabilizer, 10-15 parts of long glass fiber, and 2-5 parts of antioxidant. The preparation method includes the following steps: a, heating the modified asphalt to 160-200 DEG C; b, separately adding chloroprene, aasphalt softener, a styrene-butadiene-styrene block copolymer into the above melt modified asphalt under stirring; and c, after complete dissolution, adding petroleum resin, rubber powder, an asphaltstabilizer, long glass fiber and an antioxidant, and conducting uniform stirring. The object of the present invention is to provide the high-performance road joint glue with a reasonable formula, lowproduction cost and convenient construction.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a high-performance road surface gap filler and a preparation method thereof. Background technique [0002] With the continuous improvement of people's living standards, automobiles are also increasingly long, and the damage suffered by the road surface is also increasing. The road maintenance department must often repair the cracks and potholes on the road surface in time. However, the currently used caulking glue has the following problems: (1) the formula is relatively complicated; (2) the high temperature stability and aging resistance are poor, and it is easy to become brittle and crack when the temperature is low in winter. Adapt to cold temperature difference areas, poor adhesion to asphalt pavement, and will move outward in summer; (3) When the temperature is below zero, it is necessary to heat the joint sealant before use, which is a problem for the road mainte...

AI Technical Summary

Problems solved by technology

However, the currently used caulking adhesives have the following problems: (1) the formula is relatively complicated; (2) the high temperature stability and aging resistance are poor, and it is easy to become brittle and crack when the temperature is low in winter. Adapt to the cold temperature difference area, the adhesion with the asphalt pavement is not good, and it will move outward in summer; (3) When the temperature is below zero, the joint filler needs to be heated before it can be used, which gives the road maintenance department the maintenance and use process Cause trouble, waste manpower and material resources; (4) high production cost; (5) serious environmental pollution