PVA纤维掺量对混凝土抗压及抗弯强度影响研究
Research on the Influence of PVA Fiber Content on the Compressive and Flexural Strength of Concrete
冯光勇1
作者信息
- 1. 武汉路达建设工程检测有限公司,湖北 武汉 430000
- 折叠
摘要
文中采用国产PVA纤维材料,制备不同纤维掺量的混凝土试样,进行抗压及抗弯试验.结果表明,与普通混凝土相比,掺入PVA纤维各龄期混凝土的抗压及抗弯强度均显著提高,且养护龄期 28d时,PVA纤维掺量为 1%的混凝土抗压及抗弯强度增幅最大,分别为普通混凝土的105.22%及141.64%.随着PVA纤维掺量的增加,混凝土强度增速减缓.PVA纤维掺量为1%时,混凝土强度增强最为显著,综合效果较好.
Abstract
To study the mechanical properties of PVA fiber reinforced concrete foundation,domestic PVA fiber materials were used in this pa-per to prepare concrete specimens with different fiber contents,and compressive and flexural tests were conducted.The results showed that compared with ordinary concrete,the compressive and flexural strength of concrete with PVA fiber added at each age were significantly im-proved,and at a curing age of 28 days,the compressive and flexural strength of concrete with 1%PVA fiber content increased the most,which were 105.22%and 141.64%of ordinary concrete,respectively.With the increase of PVA fiber content,the growth rate of concrete strength slows down.The cost-effectiveness of PVA fiber is relatively low,and the concrete strength is most significantly enhanced when the dosage is 1%,with a better overall effect.
关键词
PVA纤维/混凝土/抗弯强度/抗压强度Key words
PVA fiber/Concrete/Bending strength/Compressive strength引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据