摘要
聚乙烯醇(PVA)纤维具有高弹性模量且与水泥基体的粘结强度很高。为预防和控制混凝土的早期塑性裂缝,将PVA纤维掺入混凝土可以提高混凝土的增韧性和抗冲击性。对纤维长度不同的PVA纤维混凝土试件进行抗压强度和轴心抗压强度测试,考察了PVA纤维对混凝土试件力学性能的影响。结果表明:掺入PVA纤维后混凝土试件抗压强度略微下降,混凝土试件轴心抗压强度未发生明显变化。
Polyvinyl alcohol fiber(PVA)fiber has high elastic modulus and high bonding strength with cement matrix.In order to prevent and control the early plastic crack of concrete,adding PVA fiber into concrete can improve the toughness and impact resistance.The compressive strength and axial compressive strength of PVA fiber concrete specimens with different fiber lengths were tested.The results showed that the compressive strength of concrete specimens decreased slightly after adding PVA fiber,but the axial compressive strength of concrete specimens did not change significantly.
作者
许有俊
李明浩
张治华
刘志伟
王建军
孙瑞隆
Xu Youjun;Li Minghao;Zhang Zhihua;Liu Zhiwei;Wang Jianjun;Sun Ruilong(College of Civil Engineering,Inner Mongolia University of Science and Technology,Baotou 014000;No.6Engineering Co.,Ltd.of CCCC First Highway Engineering Co.,Ltd.,Tianjin 300451)
出处
《化工新型材料》
CAS
CSCD
北大核心
2020年第1期250-252,共3页
New Chemical Materials
基金
国家自然科学基金(51868062)
内蒙古自然科学基金(2017MS(LH)0523)
城市地下工程教育部重点实验室开放研究基金(TUE2017-02).
关键词
PVA纤维
抗压强度
轴心抗压强度
polyvinyl alcohol fiber
compressive strength
axial compressive strength
