合成材料老化与应用2023，Vol.52Issue(6)：71-73,86,4.
有机坡缕石改性沥青老化性能及流变性能研究
Study on Aging and Rheological Rroperties of Organic Palygorskite Modified Asphalt
摘要
Abstract
The influence of organic palygorskite on asphalt aging performance was studied by using three asphalt index tests and rotating film test.The rheological properties of organic palygorskite modified asphalt were studied by rotational viscosity test and low temperature rheological test(BBR).The results showed that,with the increase of organic palygorskite content,the indexes of modified asphalt were changed,such as penetration and ductility decreased,softening point increased,residual penetration ratio increased,softening point increment and residual ductility decreased.It is indicated that the addition of organic palygorskite made the asphalt thickened and the anti-aging performance of SBS modified asphalt improved.The organic palygorskite modified asphalt with 20％content made the viscosity increased by 43.5％,the creep modulus value of asphalt mortar was 278.4 MPa,and the creep rate value was 0.482.Indicated that the addition of a large amount of organic palygorskite made the viscosity of asphalt increased and the low temperature performance of asphalt mortar improved.关键词
道路工程/坡缕石/改性沥青/老化性能/流变性能Key words
road engineering/organic palygorskite/modified asphalt/aging performance/rheological properties分类
交通工程引用本文复制引用
尹建伟..有机坡缕石改性沥青老化性能及流变性能研究[J].合成材料老化与应用,2023,52(6):71-73,86,4.基金项目
河南省交通科技项目(2016Y5). （2016Y5）
