摘要
依据广西壮族自治区常用材料,制作成型各种等级的混凝土,分别在3~1 200 d的龄期时进行试验,通过数理统计方法对试验数据进行整理,然后通过回归方法得出测强曲线——广西地区拉应力法检测混凝土抗压强度地方曲线,该曲线的相关系数好、平均误差小、检测精度高。
Various strength grades of concrete were produced by using the materials frequently used in Guangxi Zhuang Autonomous Region and they were tested respectively at 3-120 d ages. This paper used mathematical statistic method to prepare the test data and then used the regression method to get the strength measuring curve, namely Guangxi Regional Concrete Compressive Strength Measuring Curve by Tensile Stress Method, which has appropriate correlation coefficient, small mean error and high inspection precision.
出处
《建筑技术开发》
2015年第2期69-73,共5页
Building Technology Development
基金
广西科学研究与技术开发计划项目(桂科攻关11107016-3)
关键词
拉应力法
混凝土强度
测强曲线
tensile stress method
concrete strength
strength measuring curve
