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Production of Geopolymer Binder from Coal Fly Ash and Limestone to make Cement-Less Concrete to Strengthening of Structures

UMESH KUMAR MAHTO, Kamlesh Kumar, Gaurav Chaturvedi, Amit Kumar, Yogeshwar Saw

Abstract


In 2012, more than 100 million tons of Coal Combustion By-products (GCBs) were generated in the USA out of which more than 50% was disposed of in ponds and landfills as tailing materials that could be hazardous to the environment. The other environmental issue is related to Ordinary Portland Cement (OPC), a raw material for construction industry, which is responsible for 5–8% of the total CO2 emissions in the world. Production of one ton OPC generates one ton of CO2, a greenhouse gas affecting global warming. Therefore, the main objectives of this study were to address these two environmental challenges through finding a new application for CCBs stored in landfills, and replacing OPC by a new binder to reduce CO2 emissions. “Geopolymer” or cement-less concrete is the solution to these challenges.

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References


Struble L, Kim E. Gómez-Zamorano L. Overview of Geopolymer Cement. Geopolymer Binder Systems. ASTM International; 2013 Apr 30; 1–10.

Zubrod RW. Performance-Based Specification for Geopolymer Cement Binders and Supporting Laboratory Data. Geopolymer Binder Systems. ASTM International; 2013 May 8; 165–84.

Yen TF. Asphaltenes and Asphalts. I. Amsterdam: Elsevier, 1994. 476 Jan 27

Cement & Concrete Composites. Cement and Concrete Composites. Elsevier BV; 2003 Jan; 25(1):161–4.

Influence of Limestone and Fly Ash (Class F) as Partial Replacement Materials on the Mechanical Properties of Concrete. International Journal of Science and Research (IJSR). International Journal of Science and Research; 2015 May 5; 5(5):860–5.

Turgut P. Masonry composite material made of limestone powder and fly ash. Powder Technology. Elsevier BV; 2010 Dec; 204(1):42–7.

Golewski GL. Fracture Toughness of Concrete Containing Fly Ash. Coal Fly Ash Beneficiation - Treatment of Acid Mine Drainage with Coal Fly Ash. In Tech; 2018 Jan 31

Peffer JR. Fly Ash Disposal in a Limestone Quarry. Ground Water. Wiley; 1982 May; 20(3):267–73.




DOI: https://doi.org/10.37628/.v2i1.476

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