TY - JOUR
T1 - Study on optimization of binders to achieve high strength concrete with design standard strength of 300 N/MM2
AU - Kojima, Masaro
AU - Honma, Daisuke
AU - Tsuji, Daijiro
AU - Okada, Kazuhisa
AU - Koyama, Tomoyuki
N1 - Publisher Copyright:
© 2021 Architectural Institute of Japan. All rights reserved.
PY - 2021/2
Y1 - 2021/2
N2 - 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.
AB - 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.
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U2 - 10.3130/AIJT.27.18
DO - 10.3130/AIJT.27.18
M3 - Article
AN - SCOPUS:85102353176
VL - 27
SP - 18
EP - 23
JO - AIJ Journal of Technology and Design
JF - AIJ Journal of Technology and Design
SN - 1341-9463
IS - 65
ER -