信阳地区路面水泥混凝土质量检测与评定研究

Quality Detection and Evaluation of Pavement Cement Concrete in Xinyang City

弯拉强度是水泥混凝土路面质量检验的一个重要指标。采用小梁标准试验及路面钻芯取样圆柱体劈裂强度折算的弯拉强度进行评定,通过试验统计建立了河南省信阳市二级公路路面芯样劈裂强度与标准小梁弯拉强度的相关关系式,与以往经验公式对比分析,表明本文的推导公式能更准确地用于评定本地区路面水泥混凝土工程质量。

In road construction, the flexural tensile strength is a key index of cement concrete. It can be com- prehensive evaluated by flexural tensile strength of standard specimen beams and core boring sample. Through experimental statistics, we established the conversion expression between the flexural tensile strength of stand- ard specimen beams and the splitting strength of core boring sampling. Compared with other empirical formu- las, we can obtain that formula derived in this paper is more suitable for assessing the quality of cement con- crete in this areas.