Assessment of the alkali-silica reactivity potential in granitic rocks

摘要

The alkali-silica reactivity of granites may significantly affect the durability of road and airfield concrete pavements. The aim of the study was to evaluate the reactivity of granites commonly used as an aggregate in concrete pavements, with particular emphasis on microscopic methods. The research was focused on petrographic diagnosis of reactive minerals in granites, their quantitative analysis and comparison of the obtained results with standard measurements. The strained quartz was recognized as a reactive component and the linear relationship between its content and specimens expansion was found.(c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).