プレーンおよびコンファインドコンクリートの圧縮特性の寸法効果に関する実験的研究

Abstract

The effects of the specimen size and aggregate size on the inelastic stress-strain behavior of plain and confined concrete were examined. The following statement can be drawn from the study. For air cured plain microconcrete in which the size of aggregate is reduced in proportion to the size of a specimen, the compressive strength increased and the descending portion of stress-strain curve showed more brittle behavior with increasing size of specimen or aggregate. The compressive strength of confined concrete increased with increasing size of specimen when cured in air. On the other hand, the size effect was almost negligible in water cured specimens. The stress-strain curve of confined concrete showed more brittle behavior with increasing size of specimen and degree of such size effect depended on the spacing of hoops.