Effect of nanosilica particles on polypropylene polymer modified asphalt mixture performance

被引：54
作者：
Bala, Nura [1 ,2 ]
Napiah, Madzlan [1 ]
Kamaruddin, Ibrahim [1 ]
机构：
[1] Univ Teknol PETRONAS, Fac Engn, Dept Civil & Environm Engn, Bandar Seri Iskandar 32610, Perak, Malaysia
[2] Bayero Univ, Fac Engn, Dept Civil Engn, PMB 3011, Kano, Nigeria
来源：
CASE STUDIES IN CONSTRUCTION MATERIALS | 2018年 / 8卷
关键词：
Polypropylene; Fatigue cracking; Stiffness modulus; Modified asphalt; Draindown;
D O I：
10.1016/j.cscm.2018.03.011
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The current study was conducted to investigate the effect of nanosilica particles on the performance characteristics of polymer modified asphalt binders. In this study, control 80/100 binder were modified with polypropylene polymer and nanosilica particles at concentration of 0%-4%. Both nanosilica particles and polypropylene polymer were added by weight of total bitumen content. The asphalt performance tests flexural four point beam fatigue test, indirect tensile strength, indirect tensile stiffness modulus and draindown tests are conducted to evaluate the effect of nanosilica particles. The results of the study shows that nanosilica particles improves the fatigue properties of polypropylene polymer modified binder. This indicates that nanosilica particles have significant effect on improving the performance properties of polymer modified binders. Also, the result reveals that thermoplastic polymer polypropylene with nanosilica particles when used as bitumen modifiers improve the performance and durability of asphalt mixtures.
引用
收藏
页码：447 / 454
页数：8
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