钢/聚丙烯混杂纤维混凝土性能研究

采用钢纤维和聚丙烯纤维制备了混杂纤维混凝土,并对混杂纤维混凝土的工作性能和力学性能进行了测试和分析。研究结果表明:随着纤维的加入,新拌混凝土的流动性迅速降低;当水灰比较大时,普通混凝土与纤维混凝土的抗压强度和抗弯拉强度都较低;单纯加入钢纤维对混凝土的力学性能提高幅度有限,采用SF/PF混杂纤维不仅可以减少钢纤维的用量,还能明显提高抗压和抗弯拉强度。

Study on the Properties of Steel/Polypropylene Hybrid Fibers Reinforced Cement Concrete

Steel fibers and polypropylene fibers are adopted to produce hybrid fiber reinforced concrete,and the work performance and mechanical properties of hybrid fiber reinforced concrete are tested and analyzed.Research results show that: with the adulterating of fibers,the flowability of new mixed concrete rapidly reduces.When the ratio of water-cement increases,the compressive strength and flexural strength of ordinary concrete and fiber reinforced concrete all decrease.Pure join steel fiber on the mechanical p...