Research on the Influencing Factors of Compressive Strength of C120 Ultra-high Strength Steel Fiber Reinforced Concrete
In order to successfully prepare C120 strength grade steel fiber concrete and improve the mechanical properties of concrete,this pa-per mainly studies the influence of different brands of cement,water glue ratio,aggregate collocation ratio,steel fiber and curing mode on the compressive strength of ultra-high strength steel fiber concrete.The results show that the 60d compressive strength of Jidong Cement system and Jinma Qixin cement system is optimal,both exceeding 130 MPa;the compression strength of concrete cannot be improved;when the con-tent of steel fiber is 12%,the compressive strength of concrete 60d reaches 131.8MPa,which is 104.4%of the strength of 15%.
Ultra high strength concreteSteel fiberMix proportion designPreparation technologyCompressive strength
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