摘要
通过分析大量试验数据,建立了混凝土抗折强度与超声、回弹测试指标间的相关关系,并详细地研究了现场试验条件对测试结果的影响。制定出一套实用的混凝土强度超声、回弹综合测试方法。经现场实测比较,本方法测试速度快、使用方便,误差在15%以内,能满足工程实用需要。
On the basis of a great amount of experiment,the relationships between fkexural strength of concrete and non-destructive testing data,Schmidt rebound and ultrosanic velocity,have been established,and the effects of defferent experimental condition to practical procedure for testing flexural strength of concrete pavement is determined.Compared with testing re- suits determined by standard testing method,the flexural strength of concrete determined by non-destruet method are accurate enough.This method can be used as a practical measure to controll concrete quality in pavement site.
关键词
混凝土
抗折强度
测试
回弹综合法
flexural strength of concrete
concrete pavement
non-destructive method
