Optimizing Co-blends of Crumb Rubber and Ethylene Vinyl Acetate in 70/100 Bitumen

被引：0

作者：

Nare, Keith ^{[1
]}

Hlangothi, Shanganyane Percy ^{[1
]}

机构：

[1] Nelson Mandela Univ, Ctr Rubber Sci & Technol, Univ Way, ZA-6019 Port Elizabeth, South Africa

来源：

JORDAN JOURNAL OF CIVIL ENGINEERING | 2019年 / 13卷 / 04期

关键词：

70/100; bitumen; Co-blend; Crumb rubber; Ethylene vinyl acetate; Response surface methodology; GROUND TIRE RUBBER; MODIFIED ASPHALT; PERFORMANCE; MIXTURES; STABILITY; BEHAVIOR; BINDER;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Formulation of modified bitumen co-blends presents challenges associated with contributions of individual and interaction effects to thermo-rheological properties. Crumb rubber and ethylene vinyl acetate were used to study the optimization of co-blends in 70/100 bitumen and compared to industrial standards. A laboratory mixer fitted with a dual helical impeller was used to perform the mixing after which dynamic shear rheometer was utilized to characterize the bituminous binders. The results showed that phase angle decreases with co-blend proportions, whereas the rutting parameter and complex shear modulus increase. Response surface methodology can be used to optimize formulations for modification of 70/100 bitumen.

引用

页码：571 / 582

页数：12

共 35 条

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