李龙梓,曹鑫铖,叶国林,潘从玲,夏如茜
李龙梓,曹鑫铖,叶国林,等.混杂纤维混凝土的工作性、力学性能和弯曲韧性研究[J].混凝土与水泥制品,2024(2):61-64.
LI L Z,CAO X C,YE G L,et al.Study on workability, mechanical properties and bending toughness of hybrid fiber reinforced concrete[J].China Concrete and Cement Products,2024(2):61-64.
混杂纤维混凝土的工作性、力学性能和弯曲韧性研究
李龙梓,曹鑫铖,叶国林,潘从玲,夏如茜
李龙梓,曹鑫铖,叶国林,等.混杂纤维混凝土的工作性、力学性能和弯曲韧性研究[J].混凝土与水泥制品,2024(2):61-64.
LI L Z,CAO X C,YE G L,et al.Study on workability, mechanical properties and bending toughness of hybrid fiber reinforced concrete[J].China Concrete and Cement Products,2024(2):61-64.
摘 要:在混杂纤维(PVA、PP纤维)总掺量不变的情况下,研究了纤维混掺比例VPVA∶VPP(0∶5、1∶4、2∶3、3∶2、4∶1、5∶0)对混凝土工作性、力学性能和弯曲韧性的影响。结果表明:随着PVA纤维掺量的增加,混凝土的流动度降低,抗压强度和初裂荷载变化不大,抗折强度、峰值荷载、等效弯曲强度和等效弯曲韧性显著增大。
Abstract: When the total content of hybrid fibers(PVA fiber and PP fiber) remained unchanged, the effects of fiber mixing ratio VPVA:VPP (0:5, 1:4, 2:3, 3:2, 4:1, 5:0) on the workability, mechanical properties and bending toughness of concrete were studied. The results show that with the increase of PVA fiber content, the fluidity of concrete decreases, the compressive strength and initial crack load do not change much, the flexural strength, peak load, equivalent bending strength and equivalent bending toughness significantly increase.
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