摘要
Abstract
In this paper,the change rules of physical and mechanical indexes of rubber powder modified asphalt under the conditions of different content of rubber powder and cracking agent were studied.The results show that the softening point is positively correlated with the content of rubber powder and negatively correlated with the content of cracking agent.The penetration degree was negatively correlated with the content of rubber powder,and positively correlated with the content of cracking agent.The ductility was negatively correlated with the content of rubber powder,and was first positively correlated and then negatively correlated with the content of cracking agent.The viscosity was positively correlated with the content of rubber powder and negatively correlated with the content of cracking agent.The elasticity recovery was positively correlated with the content of rubber powder and negatively correlated with the content of cracking agent.When the content of cracking agent is 1.5％,the content of rubber powder can be effectively increased under the condition of ensuring the performance of rubber powder modified asphalt.关键词
橡胶粉改性沥青/橡胶粉改性剂/物理及力学性能Key words
Rubber powder modified asphalt/Rubber powder modifier/Physical mechanical property分类
建筑与水利
