Use of fly ash synthesized channel joint impervious material for preparing highway asphalt mixture

Abstract

The invention discloses an application of known flyash-compounded channel seam permeation resistant material on preparing a road asphalt mixed material. A modified asphalt mixing material using flyash-compounded channel seam permeation resistant material as a cementation material comprises normal pulverized stone, stone crumb, sand, slag, mineral powder and the asphalt mixing material used as thecementation material. The asphalt mixing material used as the cementation material in the asphalt mixing material accounts for 30 to 100 weight parts of the asphalt weight, and is replaced by the flyash-compounded channel seam permeation resistant material and the like of the same weight parts. The asphalt mixing material prepared by using the flyash-compounded channel seam permeation resistant material as the cementation material increases the using ways of the high additional value of the flyash, reduces the economic cost of the asphalt mixing material and improves the using performance of the asphalt mixed material. The mixed asphalt material has excellent road surface performance, simple technology, convenient use and easy popularization.

Description

technical field [0001] The invention relates to a new application of a known material, in particular to a new application of a fly ash synthetic channel joint anti-seepage material for preparing road asphalt mixture. Background technique [0002] In recent years, my country's highway construction has developed rapidly, and there is a huge market demand for highway asphalt mixture. In the asphalt mixture, asphalt is used as a cement to combine the mineral materials into a whole, and jointly resist the effects of abrasion, rutting load, and rainwater, so that the road surface becomes an impermeable and smooth whole, and avoids the lower road surface from being directly subjected to driving. and adverse effects of natural factors. Ordinary asphalt has disadvantages such as low softening point, high penetration, and strong temperature sensitivity. If ordinary asphalt is used to pave high-grade pavement, there will be problems such as soft pavement in summer and poor durability ...

AI Technical Summary

Problems solved by technology

Ordinary asphalt has disadvantages such as low softening point, high penetration, and strong temperature sensitivity. If ordinary asphalt is used to pave high-grade pavement, there will be problems such as soft pavement in summer and poor durability such as dry and cracked pavement in winter.

At present, most of the asphalt materials for building high-grade roads in China are mostly SBS modified asphalt, and the performance has been improved, but it needs to be blended and used at a higher temperature, resulting in serious aging of the asphalt and reducing the service life.

Due to the high temperature and long operation time, asphalt releases toxic gas, pollutes the environment and affects the health of operators