alkali-silica reaction

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alkali-silica reaction

In portland cement, the reaction between the alkalies and particular siliceous rocks and/or minerals which are present in some aggregates; may result in abnormal expansion and cracking of concrete under service conditions.
References in periodicals archive ?
The existing bridge is suffering from alkali silica reaction, commonly known as concrete cancer.
The CS admixture can thus provide rapid early-strength development and binding of the calcium hydroxide so that it does not participate in alkali silica reaction.
The use of low-lime Class-F fly ash can greatly reduce the expansion due to alkali silica reaction in RCA concrete (ECCO 1999).
Zeller - a recognized innovative curatorial polymer chemist, technical consultant and sculpture professor- immediately recognized that the piece had developed an external efflorescent residue referred to as alkali silica reaction.