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卵石混凝土强度随着石子最大粒径的减小而提高的规律性,在三年前的研究中就已揭示了。那么,碎石混凝土是否也存在这种规律性,它们之间有无差异?我们对这一问题也进行了研究。我们在大量的试验数据基础上认定:碎石混凝土的棱柱体强度具有随着石子最大粒径减小而提高的规律性,而立方体强度则没有这种规律性。在数据分析中还发现:碎石混凝土的棱柱体强度与立方体强度的比值也随着石子最大粒径减小而提高。这些规律的揭示,对于混凝土强度理论的研究和混凝土工程实践,无疑是有积极意义的.
The regularity of the increase in the strength of the pebble concrete as the maximum particle size of the stone is reduced has been revealed in the study three years ago. Then, whether there is such a regularity in gravel and concrete, and is there any difference between them? We have also conducted research on this issue. Based on a large number of experimental data, we have determined that the strength of the prisms of gravel concrete increases with the decrease of the maximum particle size of the gravel, while the cubic strength does not have this regularity. In the data analysis, it was also found that the ratio of prismatic strength to cube strength of gravel concrete also increased as the maximum particle size of the stone decreased. The disclosure of these laws is undoubtedly positive for the study of concrete strength theory and concrete engineering practice.