@inproceedings{6a90a3ad966b4e2f96849e1b2658519b,

title = "Computational Modeling of Concrete Degradation Due to Alkali Silica Reaction",

abstract = "This paper presents a computational multi-level model for the description of alkali and moisture transport in concrete structures coupled to a macroscopic ASR induced phase-field damage model. Concrete is modeled as a heterogeneous material consisting of a partially saturated pore space with diffusively distributed microcracks and the solid skeleton (cement paste and potentially reactive and inert aggregates). The influence of the topology of the pore space and the presence of oriented microcracks on ion diffusion and moisture transport is taken into account through a novel continuum micromechanics homogenization model. The transport model is connected to a phenomenological reaction kinetics model to account for the ASR induced volume expansion of the affected aggregates. At the macroscopic scale, crack propagation and effects of induced topological changes on the fluid and ion transport are taken into account using a phase-field model.",

author = "Timothy, {Jithender J.} and Nguyen, {Minh N.} and G{\"u}nther Meschke",

note = "Publisher Copyright: {\textcopyright} ASCE.; 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures, CONCREEP 2015 ; Conference date: 21-09-2015 Through 23-09-2015",

year = "2015",

doi = "10.1061/9780784479346.023",

language = "English",

series = "CONCREEP 2015: Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures - Proceedings of the 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures",

publisher = "American Society of Civil Engineers (ASCE)",

pages = "194--201",

editor = "Johann Kollegger and Christian Hellmich and Bernhard Pichler",

booktitle = "CONCREEP 2015",

}