Effect of Fiber on Mechanical Properties of Hydraulic Concrete
In this paper,the effects of different fiber types,fiber lengths and fiber content on mechanical strength of hydraulic concrete were studied.The results show that the compressive,tensile and flexural strengths of PVA fiber and PP fiber concrete are not much different,while the compressive,tensile and flexural properties of steel fiber concrete are 16.9%,8.7%and 4.5%higher than those of PP fiber concrete,and 21.8%,13.1%and 22.1%higher than PVA fiber concrete,respectively.The tensile strength,compressive strength and flexural strength of steel fiber reinforced concrete are first positively correlated and then negatively correlated with fiber length and fiber content.Under the test conditions,the best steel fiber length is 20mm;The optimal steel fiber content is 0.4%.
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