Application of weak acid crushed stone in pavement Tarmac
Granite stone is acidic and has poor adhesion with asphalt,making it unsuitable for engineering construction.To solve this problem,this article conducts mix design experiments by using different rock types of crushed stones,adding stripping agents,cement,hydrated lime and other materials,and compares and analyzes the test results.It is found that granite greatly improves its anti stripping performance by adding the above materials,and the low-temperature performance of granite and granite modified asphalt mixture is significantly better than that of limestone asphalt mixture.Therefore,granite modified asphalt mixture can be used for the middle and lower layers in low-temperature and less rainy areas in northern China and the lower layers in high-temperature and rainy areas in southern China,while saving costs.
国家科技期刊平台
NSTL
万方数据
