To read this content please select one of the options below:

Multi-scale computational modeling for concrete damage by mixed pore pressures – case of coupled alkali–silica reaction and cyclic freeze/thaw

Fuyuan Gong (Institute of Advanced Sciences, Yokohama National University, Kanagawa, Japan)
Yuya Takahashi (Department of Civil Engineering, The University of Tokyo, Tokyo, Japan)
Koichi Maekawa (Department of Urban Innovation, Yokohama National University,Kanagawa, Japan)

Engineering Computations

ISSN: 0264-4401

Article publication date: 15 October 2018

Issue publication date: 18 October 2018




This paper aims to propose a multi-scale simulation approach for the concrete macro-mechanical damage caused by mixed micro-pore pressures, such as the coupled alkali–silica reaction (ASR) and freeze-thaw cycles (FTC).


The micro-physical events are computationally modeled by considering the coupling effect between ASR gel and condensed water in the mixed pressure and motion. The pressures and transport of pore substances are also linked with the concrete matrix deformation at macro-scale through a poro-mechanical approach, and affect each other, reciprocally. Once the crack happens in the nonlinear analysis, both the micro-events (water and gel motion) and the macro mechanics will be mutually interacted. Finally, different sequences of combined ASR and FTC are simulated.


The multi-chemo mechanistic computation can reproduce complex events in pore structures, and further the macro-damages. The results show that ASR can reduce the FTC expansion for non-air-entrained concrete, but may increase the frost damage for air-entrained concrete. The simulation is examined to bring about the observed phenomena.


This paper numerically clarifies the strong linkage between macro-mechanical deformation and micro-chemo-physical events for concrete composites under coupled ASR and FTC.



This study was financially supported by Council for Science, Technology and Innovation, “Cross-ministerial Strategic Innovation Promotion Program (SIP), Infrastructure Maintenance, Renovation and Management” granted by Japan Science and Technology Agency.


Gong, F., Takahashi, Y. and Maekawa, K. (2018), "Multi-scale computational modeling for concrete damage by mixed pore pressures – case of coupled alkali–silica reaction and cyclic freeze/thaw", Engineering Computations, Vol. 35 No. 6, pp. 2367-2385.



Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited

Related articles