Effects of PVA fiber content on the dynamic mechanical properties of concrete
In order to investigate the effects of different content of PVA fiber on the dynamic com-pressive property of concrete under impact loads,ϕ75 mm split Hopkinson compression bar is adop-ted to conduct impact compression tests on PVARC specimens based on different volume parameters.When the strain rate is around 185 s-1,the dynamic peak stress of 0.75%of the specimen is 50%higher than that of ordinary concrete.The research results can provide reference for selecting appro-priate fiber content in practical engineering.
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