Experimental Study on Mechanical Properties of Steel Fiber Reinforced Concrete under Different Curing Conditions
Steel fiber reinforced concrete(SFRC)is a new composite material formed by adding short steel fibers distributed randomly into ordinary concrete.Based on the experiment,the compressive strength and axial compressive stress-strain curves of concrete specimens with different steel fiber content cured in the solution of 5%NaCl and water were studied.The experimental results show that the compressive strength of concrete increases with the increase of time and age,and the compressive strength of steel fiber reinforced concrete cured in water is higher than that cured in 5%NaCl solution.Generally speaking,the compressive strength of concrete decreases after adding steel fiber,but its ductility is better,which can effectively prevent the expansion and extension of micro-cracks and the formation of large cracks in concrete.To some extent,it is proved that adding steel fiber is beneficial to the chloride corrosion resistance of concrete.
steel fibercuring environmentcompressive strength growth rateelastic modulusstress and strain
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万方数据
维普
