Experimental Analysis of Surface Hardness Method for Detecting the Solid Strength of Grouting Material
In order to improve the quality of node connections in prefabricated concrete structures,the surface hardness method was studied to test the physical strength of grouting materials.The TIME5350 Leeb hardness tester was used for testing.The surface hardness value and com-pressive strength of standard test blocks were comprehensively compared,as well as the strength of grouting materials at the grouting hole end and the discharge hole end.The research results showed that the surface hardness value of grouting materials basically followed a normal distri-bution,and the relative error with the same condition specimen method was small.It can be judged that the surface hardness method has a bet-ter detection effect.
国家科技期刊平台
NSTL
万方数据
