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Materials 2016, 9(5), 378; doi:10.3390/ma9050378

Contrastive Numerical Investigations on Thermo-Structural Behaviors in Mass Concrete with Various Cements

1
State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, Hubei, China
2
Changjiang Survey Planning Design & Research Company Limited, Wuhan 430010, Hubei, China
*
Author to whom correspondence should be addressed.
Academic Editor: Luciano Feo
Received: 23 March 2016 / Revised: 11 May 2016 / Accepted: 12 May 2016 / Published: 20 May 2016
(This article belongs to the Section Structure Analysis and Characterization)

Abstract

This work is a contrastive investigation of numerical simulations to improve the comprehension of thermo-structural coupled phenomena of mass concrete structures during construction. The finite element (FE) analysis of thermo-structural behaviors is used to investigate the applicability of supersulfated cement (SSC) in mass concrete structures. A multi-scale framework based on a homogenization scheme is adopted in the parameter studies to describe the nonlinear concrete behaviors. Based on the experimental data of hydration heat evolution rate and quantity of SSC and fly ash Portland cement, the hydration properties of various cements are studied. Simulations are run on a concrete dam section with a conventional method and a chemo-thermo-mechanical coupled method. The results show that SSC is more suitable for mass concrete structures from the standpoint of temperature control and crack prevention. View Full-Text
Keywords: early-age; supersulfated cement concrete; hydration model; multi-scale early-age; supersulfated cement concrete; hydration model; multi-scale
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. (CC BY 4.0).

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Zhou, W.; Feng, C.; Liu, X.; Liu, S.; Zhang, C.; Yuan, W. Contrastive Numerical Investigations on Thermo-Structural Behaviors in Mass Concrete with Various Cements. Materials 2016, 9, 378.

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