CPT as an evaluation method of concrete mixture for ASR expansion

Kazuo Yamada, Shinya Karasuda, Shoichi Ogawa, Yasutaka Sagawa, Masahiro Osako, Hidenori Hamada, Mohd Isneini

研究成果: ジャーナルへの寄稿学術誌査読

16 被引用数 (Scopus)

抄録

Highly reactive andesite aggregates including opal or tridymite were evaluated by concrete prism test (CPT) in two ways and the suitable conditions of CPT were discussed. 18 concrete mixtures were used to examine the effect of the type and content of aggregate, the type of cementitious material. Two methods for detecting for ASR reactivity were used; RILEM AAR-4 and JASS 5N, and the latter one is of which authors revised few points. As the results, different performances of andesite depending on the size and the different required amounts of fly ash suppressing ASR depending on the mixture proportion were well demonstrated by CPT that is difficult for mortar bar test. As a curing method to avoid alkali leaching, wrapping with wet paper showed much less leaching than curing in a sealed box. From the viewpoint of easiness of operation, small size 75 × 75 × 250 mm is suitable than large size 100 × 100 × 400 mm.

本文言語英語
ページ(範囲)184-191
ページ数8
ジャーナルConstruction and Building Materials
64
DOI
出版ステータス出版済み - 8月 14 2014

!!!All Science Journal Classification (ASJC) codes

  • 土木構造工学
  • 建築および建設
  • 材料科学(全般)

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