摘要
当前回弹法规程只适用于60MPa以下强度等级混凝土强度的检测,高强度混凝土的检测技术相对落后,本文针对高强混凝土的特点,采用河北省有代表性材料,制作了C40、C50、C60、C70、C80高强混凝土试块,分别养护至1d、3d、7d、14d、30d、60d、90d、180d、360d和730d,进行回弹法测试,用回归分析方法建立了河北省高强混凝土回弹法测强曲线.
Concrete below 60 MPa can be detected by rebound method according to the current criterion, and detection method is relative behind technological development. Adopting Hebei province typical material to make out test specimens of C40- C80, the paper has analyzed the experiment data of 1 d, 3 d, 7 d, 14 d, 30 d, 60 d, 90 d, 180 d, 360 d, 730 d between rebound method and actual strength detection method. Furthermore, curves of measuring strength in Hebei province is set up by regression analysis.
出处
《河北工业大学学报》
CAS
2006年第4期82-85,共4页
Journal of Hebei University of Technology
关键词
回弹法
高强混凝土
回归分析
测强曲线
rebound method
high strength concrete
regression analysis
curve for measuring strength
