不同测强方法对C40/C50混凝土强度测试结果的影响研究  

Study on the Influence of Different Strength Measurement Methods on the Strength Test Results of C40/C50 Concrete

作　　者：王孙睿 WANG Sunrui(Xiamen Tianrun Jinlong Building Materials Co.,Ltd.)

机构地区：[1]厦门天润锦龙建材有限公司

出　　处：《广东建材》2025年第3期50-52,共3页Guangdong Building Materials

摘　　要：完成C40/C50两种强度等级混凝土在28d/40d/60d/90d四个龄期下,采用回弹法、钻芯法(不同芯样直径Φ75/100mm)、不同养护条件(标准养护/同条件养护)、不同试块尺寸(边长为a=150mm/100mm)的测强方法,分别进行强度测试并对比分析,得出作为评定方法中的回弹法,参考价值低,其原因在于其测强数据离散型较大,相比之下,作为评定方法的钻芯法,参考价值高,但取芯的同时会破坏实体构件的美观性,有待权衡利弊,从而得出不同测强方法之间的关系并总结。C40/C50 concrete with two strength grades at four ages of 28d/40d/60d/90d,using rebound method,core drilling method(with different core sample diameters ofΦ75/100mm),different curing conditions(standard curing/same condition curing),and different test block sizes(with a side length of a=150mm/100mm)of the strength measurement method,respectively,for strength testing and comparative analysis.The rebound method as the evaluation method has low reference value due to its large dispersion of strength measurement data.In contrast,the core drilling method as the evaluation method has high reference value,but at the same time of core sampling,it will damage the aesthetics of the solid component.The pros and cons need to be weighed to determine and summarize the relationship between different strength measurement methods.

关 键 词：混凝土 养护条件 试块尺寸 测强方法 

分 类 号：TU755.7[建筑科学—建筑技术科学] TU528