The Influence of Initial Curing Temperature to the Strength Development and Compressive Strength of Normal Concrete

• Published in: Transactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering Vol. 2002; no. 220; pp. 507 - 514
• Main Authors: SATO, Shushi, TAKADA, Ryuuichi, HATTORI, Kunio, OGATA, Hidehiko
• Format: Journal Article
• Language: English; Japanese
• Published: The Japanese Society of Irrigation, Drainage and Rural Engineering 2002
• Subjects: Compressive strength; Initial curing temperature; Ordinary Portland cement; Strength development; X-ray powder diffraction method
• ISSN: 0387-2335; 1884-7234
• DOI: 10.11408/jsidre1965.2002.507

In this research, the influence of high temperature to the compressive strength ofnormal concrete used the ordinary Portland cement are investigated with varying the maximum curingtemperature of the concrete at the initial age. As a result, the strength development of concrete changed depending on the curing temperature at its initial age. When concrete was cured from age 1 to 7 days with high temperature, especially 60°C above, the strength development turned out to be very small. The compressive strength of concrete exposed to 60°C below showed almost 90% of standard cured specimen constantly, however, the compressive strength exposed to 60°C above started decreasing significantly. The factors that affect to this phenomenon are considered as, first of all, the difference of hydration products due to the high temperature history, and secondly, interfacial voids occured between the cement paste and coarse aggregate.