天然橡胶改性沥青性能研究及应用展望  

Natural Rubber-modified Asphalt Performance Research and Application Prospects

作　　者：赵雁斌 马永 袁广学 封志佼 王磊[4] ZHAO Yanbin;MA Yong;YUANGuangxue;FENG Zhijiao;WANG Lei;无(Yunnan Binnan Expressway Co.,Ltd,Dali Yunnan 671000,China;Zhaotong Expressway Investment and Development Co.,Ltd.,Zhaotong Yunnan 657000;Yunnan Changtan Technology Co.,Ltd,Kunming Yunnan 650000,China;Yunnan University,Kunming Yunnan 650000,China)

机构地区：[1]云南宾南高速公路有限公司,云南大理671000 [2]昭通市高速公路投资发展有限责任公司,云南昭通657000 [3]云南畅坦科技有限公司,云南昆明650000 [4]云南大学,云南昆明650000

出　　处：《交通节能与环保》2021年第4期88-90,96,共4页Transport Energy Conservation & Environmental Protection

基　　金：云南省交通科技项目(云交科教〔2020〕113号)。

摘　　要：天然橡胶具有自粘性好,柔韧性优等特点,是一种生物可再生资源。为响应国家绿色低碳要求,提高沥青混凝土抗裂能力及自愈能力,文章先以天然浓缩胶乳制备改性沥青,并开展针入度、延度、软化点及动态剪切流变仪温度扫描试验试验。结果表明,天然橡胶胶乳改性后针入度减小、软化点提高,延度显著增大,仍呈现粘弹性特性,可改善沥青的黏弹性性能,增加沥青的柔韧性和自粘性。Natural rubber is a kind of bio-renewable resource with good self-adhesive and flexibility.In order to respond to the national green and low-carbon requirements and improve the crack resistance and self-healing ability of asphalt concrete,the modified asphalt was prepared with natural rubber latex in the study.Then ductility,soft point,penetration degree and temperature scanning test of DSR were tested.The results showed that natural rubber can effectively improve the viscoelastic,flexibility properties,and self-adhesiveness of asphalt.

关 键 词：天然橡胶 胶乳 碳中和 改性沥青 路用性能 

分 类 号：U416.218[交通运输工程—道路与铁道工程]