摘要
基于钢纤维和聚丙烯纤维的混杂增强效应,制备了单掺钢纤维和聚丙烯纤维以及复掺的混凝土试件,研究了纤维掺量对混凝土抗压强度、劈裂抗拉强度和抗折强度的影响。研究表明:纤维对混凝土抗压强度的影响不明显,但是可以显著提高混凝土的劈裂抗拉强度和抗折强度;当钢纤维掺量为1.0%、聚丙烯纤维掺量为0.5%时,其劈裂抗拉强度、抗折强度和拉压比均达到最大;纤维复掺能够取得比单掺钢纤维或聚丙烯纤维更好的抗拉增强效果;方差分析显示,混凝土的抗压强度、劈裂抗拉强度和抗折强度与纤维掺量具有密切相关性。
Based on the hybrid reinforcing effect of steel fibers and polypropylene fibers,this paper prepared concrete specimens with single-doped steel fibers and polypropylene fibers as well as co-doped,and studied the impact of fiber content on the compressive strength,splitting tensile strength,and flexural strength of the concrete.The study shows that:fibers have an insignificant impact on the compressive strength of concrete,but can significantly improve the splitting tensile strength and flexural strength of concrete;when the content of steel fibers is 1.0%and polypropylene fibers is 0.5%,their splitting tensile strength,flexural strength,and tension-compression ratio all reach the maximum;co-doping fibers can achieve a better tensile reinforcement effect than single doping with steel fibers or polypropylene fibers alone;variance analysis shows that the compressive strength,splitting tensile strength,and flexural strength of concrete are closely related to the fiber content.
作者
朱雅纯
Zhu Yachun(Beixin Construction Engineering Co.,Ltd.,Liupanshui Guizhou 553000,China)
出处
《山西建筑》
2024年第10期130-133,共4页
Shanxi Architecture
关键词
纤维增强混凝土
劈裂抗拉强度
抗折强度
方差分析
fiber reinforced concrete
splitting tensile strength
flexural strength
variance analysis
