交通节能与环保2025，Vol.21Issue(4)：201-205,5.DOI:10.3969/j.issn.1673-6478.2025.04.042
不同纤维掺量及组合下混杂纤维混凝土力学性能研究
Study on the Mechanical Properties of Hybrid Fiber Reinforced Concrete with Different Fiber Contents and Combinations
摘要
Abstract
This article studies the effects of steel fiber and cellulose fiber separately and in combination on the 28 day compressive strength of concrete.Through 25 sets of mix proportion experiments,the regulation laws of fiber types,dosages,and combination methods on the mechanical properties of concrete were revealed.The results showed that when steel fiber was added alone,the 28 day strength reached 54.70 MPa at a dosage of 20 kg/m3,which was 4.1%higher than the benchmark group;When cellulose fiber is added alone,the 28 day strength at a dosage of 0.5 kg/m3 is 55.12 MPa,which is 4.9%higher than the benchmark group;When steel fibers(10 kg/m3)and cellulose fibers(0.5 kg/m3)are mixed in,the 28 day strength is 51.27 MPa,but excessive fibers(such as steel fibers of 40 kg/m3+cellulose fibers of 2 kg/m3)cause the 28 day strength to decrease to 52.88 MPa.The result analysis shows that fibers enhance early strength by bridging cracks and strengthening interfaces,but excessive fibers can easily cause agglomeration and weaken compactness.The study provides a theoretical basis for the optimization design of hybrid fiber reinforced concrete.关键词
钢纤维/纤维素纤维/抗压强度/混杂效应/纤维掺量Key words
steel fiber/cellulose fiber/compressive strength/hybrid effect/fiber content分类
建筑与水利引用本文复制引用
邓娅,唐锦芸,龙华,孙晓玲,何毅,陈有聪..不同纤维掺量及组合下混杂纤维混凝土力学性能研究[J].交通节能与环保,2025,21(4):201-205,5.基金项目
西藏自治区科技厅-日喀则市区域科技协同创新专项(QYXTZX-RKZ2023-02) （QYXTZX-RKZ2023-02）
日喀则市科技局科技计划项目 （）
四川省自然科学基金青年基金(2024NSFSC0935) （2024NSFSC0935）
