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混凝土和钢筋混凝土构筑物的质量历来是用立方体试块的抗压强度来评定的,然而由于制作工艺和环境条件、试块尺寸又小于构筑物等差异,对试块强度能否代表构筑物混凝土的实际强度提出异议。最近几年对结构物中混凝土强度问题也引起技术界重视,国内外很多单位对混凝土非破损检测方法及钻孔取芯方法进行了研究和应用,目的是想取得一种能直接确定构筑物的混凝土强度,具有可靠性并能取得一致结果,在工地现场条件下操作简便易行的手段。
The quality of concrete and reinforced concrete structures has historically been evaluated using the compressive strength of cubic test blocks. However, due to differences in the manufacturing process and environmental conditions, and the size of the test blocks, the strength of the test blocks can represent the actual strength of the concrete structures. Raise objections. In recent years, the strength of concrete in structures has also attracted the attention of the technology community. Many units at home and abroad have conducted research and application of non-destructive testing methods for concrete and core drilling methods. The purpose is to obtain a concrete that can directly determine the structure. Strength, reliability, and consistent results, easy to operate at site conditions.