高掺量橡胶粉改性沥青物理及力学性能研究  

Study on Physical and Mechanical Properties of High Content Rubber Powder Modified Asphalt

作　　者：陈国灿 Chen Guocan(China Construction Union Construction Co.Ltd.,Quanzhou,Fujian 362700)

机构地区：[1]中建协和建设有限公司,福建泉州362700

出　　处：《江西建材》2023年第12期41-43,共3页Jiangxi Building Materials

摘　　要：文中研究了橡胶粉改性沥青物理指标及力学指标的变化规律。结果表明,软化点与橡胶粉掺量呈现正相关关系,与裂解剂掺量呈现负相关关系;针入度与橡胶粉掺量呈现负相关关系,与裂解剂掺量呈现正相关关系;延度与橡胶粉掺量呈现负相关关系,与裂解剂掺量呈现先正相关后负相关关系;黏度与橡胶粉掺量呈现正相关关系,与裂解剂掺量呈现负相关关系;弹性恢复与橡胶粉掺量呈现正相关关系,与裂解剂掺量呈现负相关关系;裂解剂掺量为1.5%时,可在保障橡胶粉改性沥青性能的条件下有效提高橡胶粉的掺量。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 powdermodified asphalt.

关 键 词：橡胶粉改性沥青 橡胶粉改性剂 物理及力学性能 

分 类 号：TU997[建筑科学—市政工程]