Journal article

A micro-mechanical parametric study on the strength degradation of concrete due to temperature exposure using the discrete element method

S Sinaie, A Heidarpour, XL Zhao

International Journal of Solids and Structures | Pergamon Press | Published : 2016

Abstract

The present paper investigates the extent of damage caused by temperature on concrete samples. This is accomplished by a parametric approach using a 2-phase discrete element model which incorporates temperature as a global variable. Two factors of concrete degradation have been considered in this study: the thermal incompatibility of the aggregates–mortar composite and the degradation of the bonds between the particles. The base models of this parametric study are created using concrete specimens tested in the laboratory after been exposed to elevated temperatures. Using these base models, the coefficient of thermal expansion (CTE) of aggregate and mortar particles are varied independently a..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Funding Acknowledgements

The research work presented in this paper was supported by the Australian Research Council through a Discovery Project (DP1096454) awarded to the second author. The authors also acknowledge the financial support received from Monash University through the Postgraduate Publication Award.