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Advances in Materials Science and Engineering
Volume 2017, Article ID 8425718, 13 pages
https://doi.org/10.1155/2017/8425718
Research Article

Late-Age Properties of Concrete with Different Binders Cured under 45°C at Early Ages

Sichuan College of Architectural Technology, Deyang 618000, China

Correspondence should be addressed to Hu Jin; moc.361@uhtnijuh

Received 15 December 2016; Revised 7 February 2017; Accepted 15 February 2017; Published 6 March 2017

Academic Editor: Xiao-Yong Wang

Copyright © 2017 Hu Jin. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

It is commonly accepted that high curing temperature (near 60°C or above) results in reduced mechanical properties and durability of concrete compared to normal curing temperature. The internal temperature of concrete structures at early ages is not so high as 60°C in many circumstances. In this paper, concretes were cured at 45°C at early ages and their late-age properties were studied. The concrete cured at 20°C was employed as the reference sample. Four different concretes were used: plain cement concrete, concrete containing fly ash, concrete containing ground granulate blast furnace slag (GGBS), and concrete containing silica fume. The results show that, for each concrete, high-temperature curing after precuring does not have any adverse effect on the nonevaporable water content, compressive strength, permeability to chloride ions, and the connected porosity of concrete at late ages compared with standard curing. Additionally, high-temperature curing improves the late-age properties of concrete containing fly ash and GGBS.