制备温度与搅拌速率对废旧胶粉改性沥青粘度的影响  

Effect of preparation temperature and stirring rate on viscosity of crumb rubber modified asphalt

作　　者：赵学锋 李海莲[2] 李良英[2] 

机构地区：[1]甘肃省民航机场集团有限公司,甘肃兰州730030 [2]兰州交通大学甘肃省道路桥梁与地下工程重点实验室,甘肃兰州730070

出　　处：《中国建材科技》2016年第5期56-59,共4页China Building Materials Science & Technology

基　　金：长江学者和创新团队发展计划滚动资助(IRT_15R29);甘肃省杰出青年基金项目(1606RJDA318);甘肃省自然科学基金(1506RJZA064)

摘　　要：采用三种制备温度和搅拌速率制备得到了橡胶沥青,以布氏旋转粘度为指标研究了对废旧胶粉改性沥青粘度的变化规律,采用统计方法探讨了各因素水平对橡胶沥青粘度的影响。结果表明:制备温度和搅拌速率对废旧胶粉改性沥青的粘度都有显著性影响,制备温度越高,搅拌速率越快且制备时间越长,橡胶沥青反应越充分;废旧胶粉改性沥青的生产工艺参数不是单个因素的单独作用,而是所有因素共同作用下的复杂反应。The rubber asphalt were prepared by three three preparation temperature and stirring rate.The variation of the viscosity of crumb rubber modified asphalt was evaluated using Brook rotational viscosity index.And the effects of various factors and level on viscosity of rubber asphalt were discussed using statistical method.The results showed that preparation temperature and stirring rate has a significant impact on the viscosity of crumb rubber modified asphalt.The higher the temperature and the faster the rate of stirring and the longer preparation time can get the full rubber asphalt reaction.The production process parameters of crumb rubber modified asphalt are not a single factor alone,but all factors together in complex reactions.

关 键 词：橡胶沥青 废旧胶粉 改性沥青 制备温度 搅拌速率 

分 类 号：U414[交通运输工程—道路与铁道工程]