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

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)18-23
Number of pages6
JournalAIJ Journal of Technology and Design
Volume27
Issue number65
DOIs
Publication statusPublished - Feb 2021

All Science Journal Classification (ASJC) codes

  • Architecture
  • Building and Construction

Fingerprint Dive into the research topics of 'Study on optimization of binders to achieve high strength concrete with design standard strength of 300 N/MM<sup>2</sup>'. Together they form a unique fingerprint.

Cite this