Potential reactivity of the andesitic rocks from Cabo de Gata (SE Spain)
DOI:
https://doi.org/10.3989/egeol.40133.090Keywords:
aggregates, andesites, alkali-silica reaction, Cabo de GataAbstract
Andesitic rocks produce an alkali-silica reaction with the components of the interstitial phase of concrete. This reaction can be considered as belonging to the slow-kinetic type, since the incongruent dissolution of the rock-forming minerals leads to the late formation of siliceous calc-alkaline gel. As a conquence, the conventional mortar-bar method does not detect such reaction until 90 days later.
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