Abstract
Temperature dependency of the reaction of silica fume on strength development of 200N/mm2-class high-strength concrete was focused, and it was studied for the purpose of clarification of the curing temperature influence. The higher temperature of the curing resulted in higher compressive strength until the age of 91 days, and compressive strength has changed from 30 to 40N/mm2 by the difference of the curing temperature from 20 to 80°C. The reaction ratio of silica fume makes a considerable contribution to the densification of the hardened cement composite and the improvement in strength development, were ordered standard water curing < simple adiabatic curing ≈ 40°C hot water curing < 80°C hot water curing.
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