Green Concrete Produced by Fly Ash and Silica Fume

Year 2017, Volume: 1 Issue: 2, 46 - 51, 30.06.2017

Bülent Çelik , Turan Özturan

Abstract

In the detailed
study presented in this paper, an experimental study was conducted to
investigate the fresh concrete and compressive strength of concrete when fly
ash and silica fume were used. For compressive strength, concrete specimens at
three water - binder ratios, namely 0.35, 0.50, 0.70 made with various
combinations of portland cement, fly ash, and silica fume were tested at 7, 28
days, and 1 year. The effects of fly ash, silica fume, water - binder ratio,
and age were studied on produced 12 mixtures. From the test results, it was
concluded that the more effective variable on concrete’s performance was the
water - binder ratio; it decreases the compressive strength and unit weight of
the concrete. 

Keywords

Green concrete, Fly Ash, Silica Fume, Environmentally friendly concrete

References

• [1] C. Meyer, “The Greening of the Concrete Industry”, The 2013 World Congress on Advances in Structural Engineering and Mechanics (ASEM13), pp. 79-92, 2013.
• [2] V. M. Malhotra, Povindar K. Mehta, Pozzolanic and Cementitious Materials, Gordon and Breach Publishers, 1996.
• [3] B. Çelik, Effect of Binding Material Composition on Mechanical Properties of Concrete Subjected to Different Exposure Conditions, M. Sc. Thesis, Boğaziçi University, 2001.
• [4] M. Pagé, N. Spiratos, The Role of Superplasticizers in The Development of Environmentally-Friendly Concrete, CANMET/ACI International Symposium on Concrete Technology for Sustainable Development, 2000.
• [5] R. E. Davis, R. W. Carlson, J. W. Kelly, M. E. Davis, Properties of Cements and Concretes Containing Fly Ash, ACI Journal, Proceedings Vol. 33, No. 5, pp. 577-612, May-June 1937.
• [6] E. E. Berry, V. M. Malhotra, Fly Ash for Use in Concrete – A Critical Review, ACI Journal, Proceedings, Vol. 77, No. 8, pp. 59-73, March-April 1980.
• [7] R. L. Yuan, J. E. Cook, Study of a Class C Fly Ash Concrete, ACI SP-79, pp. 307-319, 1983.
• [8] V. M. Malhotra, G. G. Carette, P. C. Aitcin, Mechanical Properties of Portland Cement Concrete Incorporating Blast-Furnace Slag and Condensed Silica Fume, Proc. RILEM-ACI Symp. on Technology of Concrete When Pozzolans, Slags and Chemical Admixtures are Used, pp. 395-414, Monterrey, Mexico, 1985.
• [9] A. Benli, M. Karataş, Y. Bakir, An experimental study of different curing regimes on the mechanical properties and sorptivity of self-compacting mortars with fly ash and silica fume, Construction & Building Materials., Vol. 144, p552-562, Jul 2017.
• [10] S. Marinković, J. Dragaš, I. Ignjatović, N. Tošić, Environmental assessment of green concretes for structural use, Journal of Cleaner Production. Vol. 154, p633-649, Jun 2017.
• [11] O. Zobal, P. Padevět, Long-Term Development of Strength of Cement Paste with Fly Ash, Key Engineering Materials, Vol. 722, p151-156, 2017.
• [12] S. R. Kumar, K. A. Samanta, K. S. D. Roy, An Experimental Study on the Compressive Strength of Alccofine with Silica Fume Based Concrete, Applied Mechanics & Materials, Vol. 857, p36-40, 2017.
• [13] K. K. Senthamarai, L. Andal, M. Shanmugasundaram, An Investigation on Strength Development of Cement with Cenosphere and Silica Fume as Pozzolanic Replacement, Advances in Materials Science & Engineering, p1-5, Jun 2016.
• [14] ASTM International, ASTM C 138: Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete.
• [15] ASTM International, ASTM C 143: Standard Test Method for Slump of Hydraulic-Cement Concrete.
• [16] ASTM International, ASTM C 39: Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens.