Crushed Stone Value of Aggregate in Asphalt Mixture Test for Different Temperature

摘要

Through the analysis of different temperature crushed stone value, it is found that the specification required by asphalt aggregate selection method is not suitable for all materials. 3 kinds of aggregate are selected and make the crushed stone value test; the different temperature experimental results show that the crushed stone value at room temperature may be higher or lower than that at higher temperature. So, higher temperature crushed stone value are likely to pass or fail whatever normal crushed stone value is qualified or not. The relationships among crushed stone value of aggregate at different temperature and its water absorption, lithology and internal structure are discussed and analyzed in the paper to explain this phenomenon.