超音波法,反発度法および複合法による強度推定式の提案とその有効性の検証 : 非破壊試験による構造体コンクリートの強度推定法(その3)

概要

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To estimate strength of concrete in structures non-destructive testing of ultra-sonic, rebound and combined methods are used in this study. From experimental study using full scale model walls regression equations to estimate strength of concrete by these testing methods and allowance of estimations are presented respectively. From field investigations for actual buildings aged 20〜50 years, average value and variation of strength of concrete in structures can be estimated with reasonable accuracy by using regression equations mentioned above and correcting factors as to longer age of concrete obtained from the study. And from statistical study, the numbers of measurements of non-destructive test to estimate strength of concrete required to maintain equivalent accuracy in comparing with the conventional destructive test are proposed.
社団法人日本建築学会の論文
1994-04-30