Investigation of alkali-aggregate reaction in carbonate rocks

• Autorzy: Owsiak Z.

Warianty tytułu

PL

Badania realcji alkalia-kruszywo dla skał węglanowych

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

alkali-aggregate reaction (AAR); ACR

PL

reakcja alkalia-kruszywo; reakcja alkalia-węglany ACR

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Structure and Environment
• Rocznik: 2010
• Tom: Vol. 2. no. 3
• Strony: 25--31
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Owsiak Z.

• Kielce University of Technology al. Tysiąclecia Państwa Polskiego 7 25-314 Kielce, Poland,

Bibliografia

• [1] ASTM C 1260-04, Standard Test Method for Determining the Potential Alkali Reactivity of Combinations of Cementious Materials and Aggregate (Accelerated Mortar Bar Method). Annual Book of ASTM Standards 2004.
• [2] ASTM C 295 (2003), Standard Guide for Petrographic Examination of Aggregate for Concrete.
• [3] CSA A23.2-26A (2004): Determination of potential alkali-carbonate reactivity of quarried carbonate rocks by chemical composition, Canadian Standards Association, CSA International, Canada.
• [4] Gillott, J. E., Mechanism and Kinetics of Expansion in the Alkali-Carbonate Rock Reaction Canadian J. Of Earth Sciences, 1, 1964, pp. 121-145.
• [5] Grattan-Bellew, P. E., Microcrystalline Quartz, Undulatory Extinction and Alkali-Silica Reaction Proc. 9th Intern. Conf. on AAR in Concrete, London 1992, pp. 383-394.
• [6] Hadley, D. W.: Alkali reactivity of carbonate rocksexpansion and dedolomitization. Highway Research Board Proceedings (40), 1961, pp. 462-474.
• [7] Owsiak Z., The Alkali-Silica Reaction in Concrete, Polish Academy of Science, Polish Ceramics Bulletin vol. 72, Kraków 2002.
• [8] Swenson, E. D., Gillott, J. E.: Characteristics of Kingston Carbonate Rock Reaction, Highway Research Board Proceedings (275), 1960, pp. 18-31.
• [9] Tang, M.: Kinetics of Alkali-Carbonate Reaction, Proc. of 8th Intern. Conf. on AAR, Ed. by K. Okada, Kyoto, 1989, pp. 147-152.