衝撃弾性波によるコンクリートの圧縮強度推定方法に関する基礎的研究 : 骨材の種類,養生方法および含水率の違いが弾性波速度に及ぼす影響

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In a nondestructive inspection method for estimating compressive strength of concrete using velocity of impact-elastic wave, it is very important for improving the accuracy of the estimation to study influence of concrete materials, mix proportions and other factors on relation between the velocity and the strength. The previous paper described results of experiments to clarify influence of W/C, slump, bulk volume of coarse aggregate and cement type on elastic wave velocity. In this paper, another six experiments to examine influential factors, such as type of coarse aggregate; maximum size of coarse aggregate; air content; size of specimens; way to cure; and percentage of total moisture content, were conducted. The results to describe influence of the factors on relation between elastic wave velocity and compressive strength were presented.
2005-12-30