The flexible, compression and ratio of compressive strength tests of hybrid fiber reinforced concrete are conducted with hybrid ultra- short and fine steel fibers and ordinary steel fiber. The result shows that the compressive strength of concrete with hybrid fiber is be-tween that of two fibers, and is improved significantly at its the flexural strength of the concrete by the total volume of 6%. When the ratio of ordinary steel fiber and ultra- short ultra- fine steel fiber (volume ratio) equals 1:5, the improvement of hybrid fiber is increased by 124%;additionally, when the hybrid fiber volume rate is improved from 1%to 6%, the ratio of compressive of the concrete decreased by 49.4%, and the toughening effect on cement concrete is better than single- type fiber, reflecting better characteristics of ductile failure.
hybrid steel fiberflexural strengthcompressive strengthratio of compressive strength
NETL
NSTL
万方数据
