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[27241] Artykuł: Investigation of alkali-aggregate reaction in carbonate rocks(Badania realcji alkalia-kruszywo dla skał węglanowych)Czasopismo: Structure and Environment Tom: 2, Zeszyt: 3, Strony: 25-31 ISSN: 2081-1500 Opublikowano: 2010 Autorzy / Redaktorzy / Twórcy
Grupa MNiSW: Pozostałe publikacje (niepunktowane) Punkty MNiSW: 0 YADDA/CEON Słowa kluczowe: reakcja alkalia-kruszywo  reakcja alkalia-węglany ACR  Keywords: alkali-aggregate reaction AAR  ACR  |
Alkali-aggregate reaction (AAR) may occur in concrete through siliceous or carbonate rock and alkaline hydroxides. Depending on the type of minerals present in the rock, it is possible the alkali-silica/silicate (ASR), alkali-carbonate (ACR) or both reactions occurrences. The preliminary study of the rock is an obligatory procedure before the application in a concrete structure. This paper presents a laboratory study with the main purpose of verifying the potential in causing alkali-silica and alkalicarbonate reactivity of dolomite rock. With this approach, several methodologies in the ASR and ACR investigations and a detailed mineralogical analysis of the mentioned rocks are showed and the tested results discussed. The results indicate that alkali-silica reaction does not occur in non-siliceous carbonate aggregate even with a very low content of SiO2.