Alkali-silicate reactions and corrosion of concrete

In spite of the fact that hundreds of publications are devoted to the problem of alkali-silicate reactions (ASR) in concretes, and practical recommendations have already been worked out for reducing the risk of their origination and development, one nevertheless keeps all the time detecting new cases of their manifestation. Currently major efforts of the researchers are directed at determination of ASR mechanisms, improving the techniques that enable adequate prediction of consequences of using this or that type of fillers, as well as at searching for reliable means of ASR inhibition. The article analyses the present status of this area of Portland cement and concrete science making use of the materials found in foreign scientific and technical publications.

Author: A.S. Brykov

Section: Science and production

Keywords: deformation, concrete frame, alkaline attack, reactive aggregate