Study on optimization of binders to achieve high strength concrete with design standard strength of 300 N/MM2

Masaro Kojima, Daisuke Honma, Daijiro Tsuji, Kazuhisa Okada, Tomoyuki Koyama

研究成果: Contribution to journalArticle査読

抄録

This study optimized the binder composition for making 300N/mm2 ultra-high-strength concrete. The use of silica fume with a replacement ratio of 24%, which contained 50% coarse silica flour, attained both high compressive strength and high fluidity. The newly developed chemical admixture showed excellent dispersibility down to 10% water-to-binder ratio, which improved concrete workability, mitigated the delayed setting times, and resulted in 30% less shrinkage and 7% strength gain. For the design strength of 300N/mm2, satisfactory strength and workability can be reached with the specific aggregates and curing scheme reported in our previous study.

本文言語英語
ページ(範囲)18-23
ページ数6
ジャーナルAIJ Journal of Technology and Design
27
65
DOI
出版ステータス出版済み - 2 2021

All Science Journal Classification (ASJC) codes

  • 建築
  • 建築および建設

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