Akademik Veri Yönetim Sistemi
INSAC International Researches Congress on Natural and Engineering Sciences (INSAC-IRNES'23), Konya, Türkiye, 18 - 19 Mart 2023, ss.94-105
This study was conducted to examine the behavior of natural perlite and expanded perlite powders, which are widely preferred as lightweight aggregates, against alkali-silica reaction (ASR) induced expansions. Compressive and flexural strength tests of mortars containing 6%, 12%, 18%, 24%, 30% and 36% natural perlite powder and 3%, 6%, 9%, 12%, 15% and 18% expanded perlite powder were carried out with ASR. Comparisons were also carried out with control mortars without perlite powder. ASR results decreased as the proportion of natural perlite powder increased. 15% expanded perlite powder substitution caused 9 times more expansion. Against the durability problems stemming from ASR, 30% natural perlite powder is the ideal ratio. Both compressive and flexural strength results of natural perlite powder-substituted mortars were greater than those of expanded perlite powder-substituted mortars.