Evaluation of alkali-silica reactivity of granitic aggregates [Granitik agregaların alkali silis reaksiyonu yönünden değerlendirilmesi]

Aggregate has widely used in concrete composition and its properties directly affects the durability of concrete. geological factors such as aggregate type,mineralogy and texture have significant effects on concrete strength and durability. in this study,granitic rocks collected from different parts of turkey,have been investigated from the point of alkali-silica reactions in concrete. firstly,mineralogical,petrographic and chemical characteristics of granitic rocks were investigated. then,accelerated mortar bar tests were performed on these granite samples. the effects of alkali-silica reactions were also investigated by scanning electron microscope (sem). according to results obtained,granites,when used as concrete aggregate,are not generally found to be potentially dangerous for alkali-silica reactions. © 2016,tmmob - jeoloji muhendisleri odasi. all rights reserved.