摘要
通过直接拉伸试验探究了钢纤维与POM纤维的掺量以及矿物掺合料对超高性能混凝土(UHPC)拉伸性能的影响。结果表明:UHPC的抗拉强度随着纤维掺量的增加而增大,随着矿物掺合料的增加而降低。其中,钢纤维对UHPC抗拉强度的提升效果最大,粉煤灰对于UHPC抗拉强度的影响强于矿渣。纤维的掺入能够提升UHPC的韧性,而矿物掺和料会降低UHPC的韧性。
In this paper,the effects of steel fiber and POM fiber content and mineral admixtures on the tensile properties of ultra-high performance concrete(UHPC)were investigated by direct tensile test.The results show that the tensile strength of UHPC increases with the increase of fiber content and decreases with the increase of mineral admixture.Among them,steel fiber has the greatest effect on the tensile strength of UHPC,and fly ash has a stronger effect on the tensile strength of UHPC than slag.The incorporation of fibers can improve the toughness of UHPC,while mineral admixtures reduce the toughness of UHPC.
出处
《福建建设科技》
2025年第2期65-68,共4页
Fujian Construction Science & Technology
基金
福建省科技计划引导性(重点)项目(2022Y0045)。
