Research on Workability of Interlocking-structure Dense Cement Concrete

According to the vibration filling test and the theory of coarse aggregate gradation structure,this paper selects the coarse aggregate of interlocking structure,and uses uniform design to annalyze the affecting factors of concrete slump test with U*6 form.It calculates the slump regression equation through the multiple quadratic regression model,i.e.the slump increases linearly with the water-cement ratio,and decreases linearly with sand ratio and aggregate-cement ratio,and the impact factor relation to:water-cement ratiosand ratioaggregate-cement ratio.