Advances in Concrete Construction, Vol. 6, No. 4 (2018) 387-405 DOI: https://doi.org/10.12989/acc.2018.6.4.387 387 Copyright © 2018 Techno-Press, Ltd. http://www.techno-press.org/?journal=acc&subpage=7 ISSN: 2287-5301 (Print), 2287-531X (Online) Feasibility study of ambient cured geopolymer concrete –A review Bharat Bhushan Jindal Department of Civil Engineering, M. M. University, Ambala, Haryana, India (Received April 9, 2018, Revised July 10, 2018, Accepted July 12, 2018) Abstract. Geopolymer concrete is a fastest developing field of research for utilizing industrial and agro waste materials as an alternative for Portland cement based concrete. Geopolymers are formed by the alkaline activation of aluminosilicates rich materials termed as geopolymerization. The process of geopolymerization requires elevated temperature curing which restricts its application to precast industry. This review summarizes the work carried out on developing the geopolymer concrete with the addition of various mineral admixtures at ambient curing temperature conditions. An overview of studies promoting the geopolymer concrete in general building construction is presented. Literature study revealed that geopolymer concrete with the addition of admixtures can exhibit desirable properties at ambient temperature conditions. Keywords: geopolymer concrete; ambient curing; admixtures; compressive strength; durability 1. Introduction Worldwide concrete consumption as a construction material owing to its wide-ranging mechanical properties, better performance, suitability, easy application, and cost-effectiveness encourages the manufacturing of cement on a gigantic scale. The global cement demand is estimated at over 4.216 billion metric tons in 2018 as per International Cement Review Research Report (2017). The estimated approximately 94.76×10 6 Joules/ton of energy is spent in cement production process per year (Davidovits 1994), resulting into estimated 5 to 7% of the total output of carbon dioxide (Mehta 2001) which is considered as a prominent reason to accelerate global warming. Growing industrialization further leads to the release of waste by-products such as fly ash, rice husk ash, ground granulated blast furnace slags, which are pozzolanic in nature. Further, environmentally compatible dumping of waste materials by suitable techniques is of serious concern imposing thought-provoking technical challenges. The world earth summits also expressed their concern about the increased emission of greenhouse gases to the atmosphere (Malhotra 1999), which warn cement industry to switch over from Portland cement to a greener alternative binder with desirable structural properties. Davidovits in 1978 coined the term „geopolymer‟ to represent a broad range of materials Corresponding author, Associate Professor, E-mail: [email protected]
Feasibility study of ambient cured geopolymer concrete –A review
Apr 29, 2023
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