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- W2393446896 abstract "To study the spalling properties of Ultra-high performance cementitious composites(UHPCC) used in defense works,UHPCC with 200MPa compressive strength was prepared by the substitution of ultra-fine industrial waste powder for large quantity(60%) of cement by weight and the replacement of ground fine quartz sand with natural fine sand whose maximum particle diameters were 2.5 mm.The impact tensile behaviors of UHPSFRCC with different fiber volume fractions were researched with the split Hopkinson pressure bar.The effects of the stain rate and the fiber volume fraction on the spalling properties of UHPSFRCC were researched.Results show that the spalling strength of UHPSFRCC is improved with the increase of fiber volume fraction and the increase of the strain rate,that at low strain rates(21～25/s),the spalling strength increases by 2 times and 2.5 times when the fiber volume fractions are 3% and 4% respectively,that the increment of the spalling strength becomes lower with the strain rate increasing and that at low strain rates the specimens always become spalling once,but at high strain rates the spallingon the specimens occurs two times or more." @default.
- W2393446896 created "2016-06-24" @default.
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- W2393446896 date "2009-01-01" @default.
- W2393446896 modified "2023-09-24" @default.
- W2393446896 title "Influence of steel fiber volume fraction and strain rate on spalling behavior of ultra-high performance cementitious composites" @default.
- W2393446896 hasPublicationYear "2009" @default.
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