回弹法检测自密实混凝土强度专用测强曲线的制定

自密实混凝土由于掺入了大量的掺合料和外加剂，使其坍落度较大，流动性较好，但在现场采用回弹法检测自密实混凝土的强度时，用现行标准的相关测强曲线不能满足准确测定其实际强度的要求。为此，对在某建筑物抗震加固中采用的自密实混凝土，制定了专用测强曲线。钻芯验证结果表明，该专用测强曲线准确可靠。

Establishment of the Special Measuring Curve to Detect the Strength of Self Compacting Concrete with the Rebound Hammer Method

Self Compacting Concrete has a large slump because of a large number of admixture, the rebound hammer method measuring curve of existing standards can not give on-site accurate strength, this paper established the special measuring curve to detect the strength of self compacting concrete for seismic strengthening of buildings, drilled core testing and verification results shows that the special measuring curve is accurate and reliable.