Published: 2022-09-23

Potential alkaline reactivity of sands from domestic deposits

Daria Jóźwiak-Niedźwiedzka , Aneta Antolik , Kinga Dziedzic , Paweł Lisowski


Sand used as fine aggregate in concrete may, under unfavorable environmental conditions, cause alkali-silica reaction and the consequent deterioration of durability and functional properties of concrete. The aim of this work is to compare alkali-silica reactivity of 18 natural sands of various origin. The potential reactivity of sands was tested according to the procedures PB/1/18 and PB/3/18 established in the Technical Guidelines issued by the General Directorate for National Roads and Motorways. Mineral composition of aggregate was analyzed in order to identify reactive minerals. Mortar bar expansion tests and microscopic analyses of the products of alkali-silica reaction were performed. The research indicated that 6 (33%) out of 18 tested aggregates should be classified as “moderately reactive” and 12 (67%) aggregates should be classified as “non-reactive”. It was demonstrated that the origin of sand affects its susceptibility to alkali-silica reaction.


alkali-silica gel, expansion, fine aggregate, reactive minerals, sand.

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Jóźwiak-Niedźwiedzka, D., Antolik, A., Dziedzic, K., & Lisowski, P. (2022). Potential alkaline reactivity of sands from domestic deposits. Roads and Bridges - Drogi I Mosty, 21(3), 253–271.

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