Publication details

Geovisualization of Aggregates for AAR Prediction and its Importance for Risk Management

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Year of publication 2008
Type Article in Proceedings
Conference Conference Proceedings 13th ICAAR - Program and Abstracts
MU Faculty or unit

Faculty of Science

Field Geology and mineralogy
Keywords Portland cement concrete; alkali silica reaction; sulphate attack; hydrocarbonates; volcanic
Description The paper summarizes the authors' findings regarding alkali-aggregate reactions in constructions made from OPC concretes. Results of micropetrographic and chemical analyses and EDX analyses of volcanic aggregates from a tunnel construction in Central Slovakia are given. Along with them, chemical analyses of binder separated parts and influence of carbonate aggregates are discussed. Subsequently, sulphate attack and zeolitization of OPC concretes accompanying ASR are discussed. Geovisualization of aggregate composition and OPC composition may considerably contribute to prediction of concrete detrerioration risk.
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