Mechanical properties of polyvinyl alcohol fiber-reinforced sulfoaluminate cement mortar containing high-volume of fly ash

被引：24
作者：
Niu, Mengdie [1 ]
Zhang, Junjie [1 ,2 ]
Li, Guoxin [1 ]
Song, Zhanping [3 ]
Wang, Xudong [1 ,4 ]
机构：
[1] Xian Univ Architecture & Technol, Sch Mat Sci & Engn, Xian, Shaanxi, Peoples R China
[2] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan, Hubei, Peoples R China
[3] Xian Univ Architecture & Technol, Sch Civil Engn, Xian, Shaanxi, Peoples R China
[4] Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian, Shaanxi, Peoples R China
来源：
JOURNAL OF BUILDING ENGINEERING | 2021年 / 35卷
关键词：
Sulfoaluminate cement; Fly ash; PVA fiber Reinforcement; Bending strength; Load-deflection curves; SELF-COMPACTING CONCRETE; HYBRID FIBERS; PERFORMANCE; BEHAVIOR; HYDRATION; PVA; RESISTANCE; SHRINKAGE; STRENGTH; BOND;
D O I：
10.1016/j.jobe.2020.101988
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The toughness of sulfoaluminate cement (SAC) was enhanced by adding polyvinyl alcohol (PVA) fibers and fly ash (FA). Mechanical properties of the resulting SAC mortars including compressive strength, flexural strength, and bending strength were investigated. Strength of SAC mortars with 20 wt% FA was comparable to that of SAC, due to the improved the compactness of matrix. PVA fibers had a negative effect on compressive strengths of SAC and SAC-FA, while they had positive effects on flexural strength and bending strength. A post peak softening behavior after undergoing peak loading was observed in SAC and SAC-FA, due to the presence of PVA fibers.
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页数：10
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