Effects of Moisture, Temperature, and Freezing and Thawing on Alkali-Silica Reaction

Publication Information:

Deschenes, R.A., E.R. Giannini, T. Drimalas, B. Fournier, and W.M. Hale, “Effects of Moisture, Temperature, and Freezing and Thawing on Alkali-Silica Reaction”, ACI Materials Journal, Vol. 115(4), pp. 575-584, 2018. DOI: 10.14359/5170219.

Year: 2018

Alkali-silica reaction (ASR) and freezing and thawing (F/T) deterioration reduce the service life of concrete. The influence of relative humidity (RH), temperature, wetting-and-drying (W/D), and F/T on the development of ASR were evaluated herein. These factors exacerbate concrete deterioration, and understanding the relationship between moisture and deterioration is necessary for mitigation. The results of this study confirm a relationship between deleterious expansion and environmental conditions such as moisture and temperature. The results confirm the aggravating effect of F/T on ASR. The results indicate that sufficient drying may prevent both ASR and F/T deterioration in non-air-entrained concrete. Silane was evaluated as a mitigation measure for concrete exposed to a combination of ASR, F/T, and W/D and found to increase drying.

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