Research on the design method of mortar and concrete based on the water-binder-density ratio law
A mix proportion design method based on the water-binder-density ratio law was proposed,and mortar and concrete were prepared with compressive strength and apparent density as design objectives.The design objectives were experimentally verified,and the differences in the main parameters of the calculation results between the design method based on the water-binder-density ratio law and the Baum formula design method were compared.The results show that the apparent density and measured 28 d compressive strength of mortar and concrete prepared by the design method based on the water-binder-density ratio law are basically consistent with the design objectives,with R2 values of 0.891 and 0.888,respectively,and the mortar and concrete have controllable workability.The design method based on the water-binder-density ratio law can achieve the simultaneous design of compressive strength and apparent density of mortar and concrete,and has a certain degree of scientific and practical significance.
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