Influence of portland cement characteristics on alkali silica reactivity
Date
2003Author
Tikalsky, Paul J.
Roy, Della M.
Scheetz, Barry E.
Krize, Tara
Rosenberger, James
Arjunan, Periaswamy
Metadata
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The findings of this study which evaluated 21 portland cements identified K2O and Na2Oeq as significantly contributing to ASR expansion with a less strong correlation to SO3 content The conclusions are based on results of ASTM C 441 Tests. Response surface modeling has identified a negative trend of clinker SiO2 and a direct trend of Na2Oeq as significantly contributing to ASR expansion. The ASTM C 227 analytical results were less conclusive and proved to be a poor indicator of the effects of cement variables in the expansion in tests up to 1 year in duration. In contrast, ASTM C 441 rapidly and clearly delineated the cements contribution to ASR expansion.
Citation
Roy, D. M., Tikalsky, P. J., Scheetz, B. E., Krize, T., Rosenberger, J., & Periaswamy, A. (2003). Influence of portland cement characteristics on alkali silica reactivity. Paper presented at the Transportation Research Board conference.