Mechanical Properties of Hybrid Fiber Reinforced Rubber Concrete

被引：8

作者：

Su, Qiang ^{[1
]}

Xu, Jin-Ming ^{[1
]}

Wang, Yong-Dong ^{[2
]}

机构：

[1] Shanghai Univ, Dept Civil Engn, Shanghai 200444, Peoples R China

[2] Shanghai Shancheng Survey & Design Co Ltd, Shanghai 201803, Peoples R China

来源：

MATERIALS | 2021年 / 14卷 / 20期

关键词：

concrete; mechanical properties; basalt fiber; PVA fiber; rubber; SEM microscopic; EDS quantitative analysis; BEHAVIOR;

D O I：

10.3390/ma14206028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Orthogonal experiments were designed for hybrid fiber rubber concrete (HFRC). The mechanical properties of HFRC were tested and compared with ordinary concrete. The effects of basalt fiber volume ratio (V-BF), PVA fiber volume ratio (V-PF) and rubber volume ratio (V-R) on the compressive strength, splitting tensile strength and flexural strength of HFRC were analyzed. The results show that the strength of HFRC is the best when the volume ratio of basalt fiber is 0.3%, the volume ratio of PVA fiber is 0.2% and the volume ratio of rubber is 5%. Basalt fiber has the greatest influence on the strength of HFRC. The strength of HFRC mixed with hybrid fiber is greatly improved, which reflects the good fiber "positive hybrid effect ". With the increase of rubber volume ratio, the strength of HFRC decreases gradually. With the help of SEM and EDS, the toughening and cracking resistance mechanism of the fiber to HFRC was analyzed. Finally, the strength of HFRC was predicted by model.</p>

引用

页数：13

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