Abstract: By analyzing main influential factors of tensile strength of RCC, and comparing the similarities and differences between the splitting and axis tensile strength, collecting lots of project data about splitting tensile strength, axis tensile strength and conpressive strength of RCC, we can draw a rough conclusion: the increasing rate of splitting or axis tensile strength ofRCC and its date is logarithmic; The relations between splitting tensile strength and axis tensile strength, compressive strength and splitting or axis tensile strength are linear. The five regressive equations are listed in the text. The aim of this text is to provide the credible evidence for existing theory and practice.

摘要： 本文分析了碾压混凝土抗拉强度的影响因素，并比较劈拉强度与轴拉强度的异同，在此基础上搜集劈拉强度、轴拉强度与抗压强度的大量工程室内试验数据，对数据进行分析，得出初步结论：劈拉强度或轴拉强度的平均增长率与龄期呈对数关系；抗压强度与劈拉强度或轴拉强度、劈拉强度与轴拉强度的关系均为线性，5个相关方程在文中分别列出。