Testing the Effectiveness of Class C and Class F Fly Ash in Controlling Expansion due to Alkali-Silica Reaction Using Modified ASTM C 1260 Test Method
Publication: Journal of Materials in Civil Engineering
Volume 16, Issue 1
Abstract
The effectiveness of several Class C and Class F fly ashes in controlling expansion due to alkali silica reactivity (ASR) was investigated based on a modified ASTM C 1260 test method. Three different strengths of NaOH solution (1N, 0.5N, and 0.25N) were used to test the reactivity of reactive and potentially reactive aggregate in mortars with 20 and 35% Class C and F fly ash replacements by mass of cement. The other variables included high and low alkali cement, extended curing time, and longer testing period of 28 days. Test results confirm that Class F fly ash is more effective than Class C fly ash in controlling expansion due to ASR, but that Class C fly ash can also be used under certain conditions.
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References
ASTM. (1994a). “ASTM C 1260: Standard test method for potential alkali reactivity of aggregates (mortar-bar method).” Annual book of ASTM standards, West Conshohocken, Pa., 652–655.
ASTM. (1994b). “ASTM C 295: Guide for petrographic examination of aggregates for concrete.” Annual book of ASTM standards, West Conshohocken, Pa., 179–186.
Chandra, S. (1997). Waste materials used in concrete manufacturing, Noyes, Westwood, N.J.
Dobrowolski, J. A. (1998). Concrete construction handbook, 4th Ed., McGraw-Hill, New York.
Fournier, B., Langley, W. S., and Malhotra, V. M. (1995). “Effectiveness of fly ash in reducing expansion of concrete made with reactive aggregates from New Brunswick.” Proc., 5th CANMET/ACI Int. Conf. on Fly Ash, Silica Fume, Slag, and Natural Pozzolans in Concrete, American Concrete Institute, Detroit, 1–45.
Fournier, B., and Malhotra, V. M.(1999). “Evaluation of laboratory test method for alkali-silica reactivity.” J. Cem., Concr., Aggregates, 21(2), 173–184.
Joshi, R. C., and Lohtia, R. P. (1997). Fly ash in concrete—Production, properties, and uses, Cordon and Reach Science, Amsterdam.
Kakodkar, S., Ramakrishnan, S., and Zimmerman, L. (1997). “Addition of Class C fly ash to control expansions due to alkali-silica reaction.” Transportation Research Record 1458, Transportation Research Board, Washington, D.C., 109–117.
Lee, C., Lou, I., Shieh, W., and Sheu, S. (2000). “Evaluation of the effectiveness of slag and fly ash in preventing expansion due to AAR in Taiwan.” Proc., 11th Int. Conf. on Alkali-Aggregate Reaction in Concrete, Centre de Recherche Interuniversitaire sur le Beton (CRIB), Quebec, 703–712.
Malhotra, V. M., and Mehta, P. K. (1996). Pozzolanic and cementitious materials, Gordon and Breach, Amsterdam.
Stark, D. (1993). “Eliminating or minimizing alkali-silica reactivity.” Rep. SHRP-C-343, Strategic Highway Research Program, National Research Council, Washington, D.C.
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Copyright © 2004 American Society of Civil Engineers.
History
Received: Apr 22, 2002
Accepted: Mar 13, 2003
Published online: Jan 16, 2004
Published in print: Feb 2004
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