梁体混凝土实体强度弹模强度检测研究

Study on Elastic Modulus Strength Test of Beam Concrete Solid Strength

设计制作不同强度等级的模型,通过回弹法和冲击弹性波法检测实体强度的对比,证明混凝土强度与钢筋间距及钢筋保护层厚度无直接关系,并反映出冲击弹性波方法的优越性。由此得出,采用冲击弹性波检测时,实测弹性模量大小与试件尺寸无关的结论,进而提出可考虑采用混凝土立方体抗压试件代替传统弹模试件测试混凝土弹性模量的可行性。

Through the comparison between rebound method and impact elastic wave method,it is proved that there is no direct relationship between concrete strength and reinforcement spacing and reinforcement cover thickness,and reflects the advantages of impact elastic wave method.It is concluded that the measured elastic modulus has nothing to do with the size of the specimen when using shock elastic wave detection,and then it is proposed that it is feasible to use concrete cube compressive specimen instead of traditional elastic modulus specimen to test the elastic modulus of concrete.