Engineering Properties of Alkali Activated Slag Concrete Under Ambient And Heat Curing

Engineering Properties of Alkali Activated Slag Concrete Under Ambient And Heat Curing

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2017 by IJETT Journal
Volume-50 Number-3
Year of Publication : 2017
Authors : G.Madhuri, K. Srinivasa Rao
DOI :  10.14445/22315381/IJETT-V50P225

Citation 

G.Madhuri, K. Srinivasa Rao "Engineering Properties of Alkali Activated Slag Concrete Under Ambient And Heat Curing", International Journal of Engineering Trends and Technology (IJETT), V50(3),161-166 August 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
This paper presents an investigation into the engineering properties of alkali activated slag concrete (AASC) made with ground granulated blast furnace slag (GGBS) as sole binder. Four mixes of AASC were prepared using different Alkaline to GGBS ratios (0.4 and 0.5), Na2SiO3 to NaOH ratios (2.33 and 1.0) with concentration of NaOH solution as 12M and 16M.Specimens were cast and cured under ambient and heat curing(24 h at 60?C) conditions after undisturbed for 24 h in moulds at room temperature. Their performance was discussed and compared with conventional concrete (M20) produced using ordinary Portland cement. Engineering properties like compressive strength, flexural strength, splitting tensile strength and stress strain behaviour were evaluated as part of this study. The test results show that S-0.4-2.33-16M mix is better in compressive and splitting tensile strengths whereas S-0.5-2.33-16M mix exhibited higher flexural strength and S-0.5-1.0-12M mix has the highest toughness index.

Reference
1. C.A Hendriks, E. Worrell, D. Jager, K. Blok, P. Riemer., `Emission reduction of greenhouse gases from the cement industry`, In: Proceedings of the 7th international conference on greenhouse gas control technologies, IEA GHG R&D Probram, Vancouver, Canada, 2004.
2. A.M. Fernandez-Jimenez, A. Palomo, C. Lopez-Hombrados, Engineering properties of alkali-activated fly ash concrete, ACI Mater. J. V. 103 (2), 2006, 106-112.
3. A. Palomo, M.T. Blanco-Varela, M.L. Granizo, F. Puertas, T. Vazquez, M.W. Grutzeck, Chemical stability of cementitious materials based on metakaolin, Cem. Con Res. 29, 1999, 997-1004.
4. T. Bakharev, Resistance of geopolymer materials to acid attack, Cem. Con Res. 35 2005a, 658-670.
5. T. Bakharev, Durability of geopolymer materials in sodium and magnesium sulfate solutions, Cem. Con. Res. 35 (6), 2005b, 1233-1246.
6. D.L.Y. Kong, J.G. Sanjayan, Effect of elevated temperatures on geopolymer paste, mortar and concrete, Cem. Con. Res. 40 (2), 2010, 334-339.
7. C.K. Yip, G.C. Lukey, J.S.J. van Deventer, The coexistence of geopolymeric gel and calcium silicate hydrate at early stage of alkaline activation, Cem. Con.Res. 35, 2005, 1688-1697.
8. D. Ravi Kumar, N. Neithalath, Effects of activator characteristics on the reaction product formation in slag binders activated using alkali silicate powder and NaOH, Cem. Concr. Comp. 34 (7), 2012, 809-818.
9. C. Shi, P. V. Krivenko, D. M Roy, Alkali-activated cements and concretes. London: Taylor & Francis; 2006.
10. F. Pacheco-Torgal, J. Castro-Gomes, S. Jalali, Alkali-activated binders: a review. Part 2. About materials and binders manufacture. Constr Build Mater 2008, 22:1315–22.
11. A.R Brough, A. Atkinson, Sodium silicate-based, alkali-activated slag mortars: Part I. Strength, hydration and microstructure. Cem Concr Res 32(6), 2002, 865–79.
12. A. Palomo, M.W. Grutzeck, M.T. Blanco, Alkali-activated fly ashes: a cement for the future. Cem Concr Res 29(8), 1999, 1323–9.
13. D. M. Roy, Alkali-activated cements opportunities and challenges. Cem Concr Res 29(2), 1999, 249–54.
14. BS 6699:1992. Specification for ground granulated blast furnace slag for use with Portland cement, 1992.
15. Indian Standard Code of Practice for Specification for Ordinary Portland cement IS 12269:1987, Bureau of Indian Standards, New Delhi.
16. N.P. Rajamane, R. Jeyalakshmi, Quantities of sodium hydroxide solids and water to prepare sodium hydroxide solution of given molarity for Geopolymer concrete mixes, ICI Journal, 2015, 33-36.
17. Indian Standard Code of Practice for Specification for coarse and fine aggregates from the natural sources for concrete IS 383:1970, Bureau of Indian Standards, New Delhi.
18. Indian Standard Code of Practice for Guidelines for concrete mix design proportioning IS 10262:2009, Bureau of Indian Standards, New Delhi.
19. Indian Standard Code of Practice for Method of test for strength of Concrete IS 516:1959, Bureau of Indian Standards, New Delhi.
20. Indian Standard Code of Practice for Method of splitting tensile strength of the concrete IS 5816: 1999, Bureau of Indian Standards, New Delhi.
21. F. Collins and J.G. Sanjayan,Micro cracking and strength development of alkali activated slag concrete, Cement and Concrete composites, 23, 2001, 345-352.
22. A. Wardhono A, D.W. Law and T.C.K. Molyneaux, Long term performance of alkali activated slag concrete, Journal of Advanced concrete technology, 13, 2015, 187-192.

Keywords
Alkali activated slag concrete, conventional concrete, compressive strength, flexural strength, splitting tensile strength, stress strain.