Study on nonlinear effect of blending manufactured sand
To explore the effect of blending on the key technical indexes and performance of manufactured sand,the key technical indexes between the blending manufactured sand and raw manufactured sand and the relationship between the fluidity of cement mortar and the strength of specimen were studied in detail.The results show that the particle size distribution,fine content,MB value,apparent density and flake particle content of the blending sand are linearly related to the corresponding indexes of the raw sand,while the loose bulk density are nonlinear relationship.The water consumption of blending sand cement mortar with the same fluidity is less than the linear additive value of raw sand.The porosity of the blending sand cement mortar specimen is less than the linear additive value of the raw sand,and the strength is greater than the linear additive value of the raw sand.
万方数据
维普
