A Review on Selected Durability Parameters on Performance of Geopolymers Containing Industrial By-products, Agro- Wastes and Natural Pozzolan

Year 2022, Volume: 7 Issue: 4, 375 - 400, 30.12.2022

Festus Ngui , Najya Muhammed Fredrick Mulei Mutunga Joseph Marangu , Ismael Kithinji Kınotı

https://doi.org/10.47481/jscmt.1190244

Cited By: 3

Abstract

The applications of geopolymers as cementitious systems are becoming an alternative source of cement daily. The use of potentially suitable aluminosilicate inorganic waste materials incorporated with agro-industrial waste in the production of suitable geopolymer binders has been reported. Calcined clay and some agro-waste ash, such as coconut shells, are examples of aluminosilicate materials that exhibit strong pozzolanic activity because of their high silica-alumina composition. The pozzolanic reaction is primarily caused by the amorphous silica present in properly burned agricultural waste and clay. Based on a variety of available literature on concrete and mortar including geopolymers synthesized from agro-industrial waste, a critical review of raw materials and the mechanism of synthesis of the geopolymer has been outlined in this work. Additionally, the durability characteristics of agro-industrial waste geopolymer concrete and mortar, including resistance to chloride, corrosion, sulfate, acid attack, depth of carbonation, water absorption, thermal resistivity, Creep and drying shrinkage, are briefly reviewed.

Keywords

agro-industrial waste, calcined clay, coconut ash, durability, geopolymer

Supporting Institution

MAPRONANO ACE, Makerere University-Uganda

Project Number

MAP/PhD/046 2019

Thanks

The authors wish to acknowledge the MAPRONANO ACE in collaboration with the World Bank and Pwani University, Kenya, for funding this research.

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