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黄大能先生的“对水泥强度测定方法的探讨”一文,建议用劈裂法测定水泥抗拉强度。此后,吴圣光先生在“用劈裂法测定水泥抗拉强度的一些理论依据”一文中(载于《建筑材料工业》1962年18期),表示完全同意黄先生的意见,并提出了劈裂法的一些理论依据。我们根据一些初步的试验结果,对这个问题却有不同的看法,现提出与黄、吴等先生商榷。由试验得知,劈裂抗拉强度(按2P/πa~2)计算得到)的增进与8字型抗拉强度的增进相比,早期较慢而后期较快。大家知道,同一种水
Mr. Huang Da-neng’s article “A discussion on the determination method of cement strength” suggested that the tensile strength of cement be measured by splitting method. Afterwards, Mr. Wu Shengguang in his article “Some Theoretical Basis for Determining the Tensile Strength of Cement by the Splitting Method” (contained in Building Materials Industry, 1962, 18th) stated that he fully agreed with Mr. Huang’s opinion and proposed the cleaving method. Some of the theoretical basis. According to some preliminary test results, we have different views on this issue. We are now discussing with Mr. Huang and Wu. It is known from the test that the increase in split tensile strength (calculated as 2P/πa~2) is slower in the early stage and faster in the later stage than the increase in the tensile strength of the figure 8. Everyone knows that the same kind of water