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- W2355398711 abstract "The dynamic mechanical properties of the concrete reinforced with various volume fractions of basalt fiber subjected to high strain rates were studied using split Hopkinson pressure bar(SHPB) apparatus,and the validity of experiment was analyzed.The tests reveal that the dynamic strength and toughness of basalt fiber reinforced concrete(BFRC) are strain rate dependent,the strain rate effect can be expressed by linear approximations,and the relationship between dynamic strength increase factor and logarithm of average strain rate is approximately linear.The addition of 0.1%(volume fraction) basalt fiber results in 26% and 14% increase of impact compressive strength and toughness,respectively.The addition of 0.2% and 0.3% basalt fiber results in 25% increase of impact compressive strength and no significant superiority in toughness to plain concrete.During SHPB tests,BFRC specimens begin to fail at 123.3～239.45μs,nearly constant strain rates are obtained over 62% of test durations,and the average relative error of the strain rate is 23%,so the SHPB test results of BFRC are credible." @default.
- W2355398711 created "2016-06-24" @default.
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- W2355398711 date "2008-01-01" @default.
- W2355398711 modified "2023-09-22" @default.
- W2355398711 title "Dynamic mechanical properties of basalt fiber reinforced concrete using a split Hopkinson pressure bar" @default.
- W2355398711 hasPublicationYear "2008" @default.
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