Minimum Length of Curing of Silica Fume Concrete
Publication: Journal of Materials in Civil Engineering
Volume 7, Issue 2
Abstract
In an experimental investigation, the minimum length of curing of silica fume concrete was determined and compared with that of plain portland cement concrete and fly ash concrete. Four silica fume concrete mixes with silica fume contents of 5%, 10%, 15%, and 20% of the total cementitious material content were prepared along with one plain portland cement concrete mix and one fly ash concrete mix. After demolding, the concrete specimens from each mix were moist cured in a fog room for six different periods of time: 0, 1, 3, 7, 14, and 28 days. The compressive strength determinations were made after each curing period. From the regression equations developed in this study, relating the strength and curing time, and the guidelines of ACI 308-81(86) the minimum length of curing of silica fume concrete mixes included in this study was determined to be 3 days. Compared to this, the minimum lengths of curing for the plain portland cement concrete mix and the fly ash concrete mix were 3.75 days and 6.5 days, respectively.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Ayers, M. E., and Khan, M. S. (1994). “Overview of fly ash and silica fume concretes: the need for rational curing standards.”Concrete technology past, present, and future, ACI SP-44, American Concrete Institute (ACI), Detroit, Mich.
2.
Bentur, A., and Goldman, A.(1989). “Curing effects, strength, and physical properties of high strength silica fume concrete.”J. Mat. in Civ. Engrg., ASCE, 1(1), 46–58.
3.
Bunke, D. (1988). “ODOT experience with silica fume concrete.”Transp. Res. Record, No. 1204, Transportation Research Board, Washington, D.C., 27–35.
4.
Gopalan, M. K., and Haque, M. N.(1987). “Effect of curing regime on the properties of fly ash concrete.”ACI Mat. J., 84(1), 14–19.
5.
Haque, M. N., Day, R. L., and Langan, B. W.(1988). “Realistic strength of air-entrained concretes with and without fly ash.”ACI Mat. J., 85(4), 241–247.
6.
Holland, T. C. (1989). “Working with silica fume in ready-mixed concrete—U.S.A. experience.”Fly ash, silica fume, slag and natural pozzolans in concrete, SP-114, American Concrete Institute (ACI), Detroit, Mich., 763–781.
7.
Khan, M. S., and Ayers, M. E. (1993). “Curing Requirements of Silica Fume and Fly Ash Mortars.”Cement and Concr. Res., 23(6).
8.
Li, S., Roy, D. M., and Kumar, A. (1985). “Quantitative determination of pozzolans in hydrated systems of cement or Ca(OH) 2 with fly ash or silica fume.”Cement and Concr. Res., 15(6), 1079–1086.
9.
Luther, M. D. (1988). “Silica-fume (microsilica) concrete in bridges in the United States.”Transp. Res. Record No. 1204, Transportation Research Board, Washington, D.C., 11–20.
10.
Luther, M. D.(1993). “Silica fume (microsilica) concrete in bridges.”Concr. Int., 15(4), 29–33.
11.
Maage, M., Smeplass, S., and Johansen, R. (1990). “Long-term strength of high-strength silica fume concrete.”High-strength concrete, SP-121, American Concrete Institute (ACI), Detroit, Mich., 399–408.
12.
Roy, D. M. (1989). “Fly ash and silica fume chemistry and hydration.”Fly ash, silica fume, slag and natural pozzolans in concrete, SP-114, American Concrete Institute (ACI), Detroit, Mich., 117–138.
13.
“Standard practice for curing concrete.” (1981). ACI 308-81(86), ACI Committee 308, American Concrete Institute (ACI), Detroit, Mich.
14.
Thomas, M. D. A., Mathews, J. D., and Haynes, C. A. (1989). “The effect of curing on the strength and permeability of PFA concrete.”Fly ash, silica fume, slag and natural pozzolans in concrete, SP-114, American Concrete Institute (ACI), Detroit, Mich., 191–218.
Information & Authors
Information
Published In
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: May 1, 1995
Published in print: May 1995
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.