Open Access Journal

ISSN : 2456-1290 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

A Detailed Review on Alkali-Activated Slag (AAS) and Fly Ash Based Concrete

Author : Sonal Banchhor 1 Dr Meena Murmu 2 Dr Shirish.V.Deo 3

Date of Publication :30th December 2017

Abstract: In the present world, the technology is changing at a high pace, concrete is one among them and has turned into a key piece of our lives. With each passing day, the use of cement is expanding at a high rate. One of the core constituents of concrete is Portland cement. With the increase in utilization of concrete, the manufacturing and consumption of cement have increased drastically. Despite the fact that bond has uncommon restricting properties and is extremely apt for use in concrete, the assembling of concrete outcomes in the discharge of a lot of CO2. Due to this, researchers have commenced finding alternatives to cement that are economical as well as environment-friendly. Fly ash and Ground granulated blast furnace slag are industrial by-products which postulate admirable binding properties to concrete and accommodate as a supersession of cement. These alternatives are generally termed as Supplementary cementations materials (SCMs). The utilization of these materials not only avails in reducing the consumption of cement but withal accommodates as an efficient method for their safe disposal. This paper analyses the effect of utilizing these materials that can be utilized in concrete as partial replacement of cement. The literature review of sundry researchers reveals that a single alternative cannot provide all the benefits that cement does. Rather, a suitable combination of these products can be incorporated in concrete to provide properties better than that of Portland cement concrete. And research in the field of AAS and fly ash concrete states that this new material is high potential to replace an alternative to Portland cement. This article presents an in-depth review of alkali-activated slag and flies ash-based concrete. The paper covers composition, mixing and curing process, benefits, limitations, and applications of AAS and fly ash-based concrete.

Reference :

    1. X. Gao, Q. L. Yu, and H. J. H. Brouwers, “Characterization of alkali activated slag-fly ash blends containing nano-silica,” Constr. Build. Mater., vol. 98, pp. 397–406, 2015.
    2. M. D. A. Thomas, “Optimizing the Use of Fly Ash in Concrete,” Portl. Cem. Assoc., p. 24, 2007
    3. Z. Liu, S. M. Asce, X. Yu, and M. Asce, “Multiscale Chemico-Thermo-Hydro-Mechanical Modeling of EarlyStage Hydration and Shrinkage of Cement Compounds,” J. Mater. Civ. Eng., vol. 27, no. September, pp. 1239–1247, 2013
    4. K.-H. Yang and J.-K. Song, “Workability Loss and Compressive Strength Development of Cementless Mortars Activated by Combination of Sodium Silicate and Sodium Hydroxide,” J. Mater. Civ. Eng., vol. 21, no. 3, pp. 119–127, 2009.
    5. D. Wang, Q. Wang, and Z. Fang, “Influence of alkali activators on the early hydration of cement-based binders under steam curing condition,” J. Therm. Anal. Calorim., vol. 130, no. 3, pp. 1801–1816, 2017.
    6. R. Vinai, A. Rafeet, M. Soutsos, and W. Sha, “The Role of Water Content and Paste Proportion on Physicomechanical Properties of Alkali Activated Fly Ash–Ggbs Concrete,” J. Sustain. Metall., vol. 2, no. 1, pp. 51–61, 2016.
    7. B. Singhi, A. I. Laskar, and M. A. Ahmed, “Investigation on Soil–Geopolymer with Slag, Fly Ash and Their Blending,” Arab. J. Sci. Eng., vol. 41, no. 2, pp. 393– 400, 2016.
    8. R. Siddique and M. I. Khan, “Ground granulated blast furnace slag,” Suppl. Cem. Mater., pp. 121–173, 2011.
    9. G. Mallikarjuna Rao and T. D. Gunneswara Rao, “Final Setting Time and Compressive Strength of Fly Ash and GGBS-Based Geopolymer Paste and Mortar,” Arab. J. Sci. Eng., vol. 40, no. 11, pp. 3067–3074, 2015.
    10. C. H. Sung, R. Huang, C. J. Tsai, Y. H. Wu, W. T. Lin, and T. L. Weng, “Application on cementitious materials to promote durability of alkali-activated concrete containing co-fired fly ash and water-quenched slag,” Monatshefte fur Chemie, vol. 148, no. 7, pp. 1349–1354, 2017.
    11.  A. Wardhono, D. W. Law, and A. Strano, “The strength of alkali-activated slag/fly ash mortar blends at ambient temperature,” Procedia Eng., vol. 125, pp. 650–656, 2015.

Recent Article