Meso-scale finite element modeling of Alkali-Silica-Reaction

The Alkali-Silica Reaction (ASR) in concrete is a chemical reaction, which produces an expansive product, generally called “ASR gel”, and causes cracking damage over time. Affecting numerous infrastructures all around the world, ASR has been topic of much research past decades. In spite that, many aspects this reaction are still unknown. numerical-investigation paper, three-dimensional meso-structure model simulated using finite-element method. Coarse aggregates, cement paste, gel explicitly represented. A temperature dependent eigen-strain applied on pockets to capture their behavior. This applies pressure surrounding aggregates leading cracks initiation propagation. Free expansion specimens due modeled validated experimental data. Influence different key factors generation paste macroscopic discussed.