Assessment of Fly Ash-Rice Straw Ash-Laterite Soil Based Geopolymer Mortar Durability

Geopolymer is an inorganic form of alumina-silica that synthesized through materials containing lots silica (Si) and alumina (Al) originating from nature or industrial by-products. The geopolymer binder a two-component system consisting solid components have sufficient amounts SiO2 Al2O3 to compounds such as fly ash, rice straw pozzolan, laterite soil, slag, etc. This study aims analyze the compressive strength, chemical compositions, geopolymerization process geopolymers produced lateritic soil bound with alkaline activator, sodium hydroxide (NaOH), concentration 12 M. durability mortar was determined by soaking for 3, 7, 28 days using water curing sulphate (Sodium Sulphate, Na2SO4, Sulfuric Acid, H2SO4). results showed (NaOH) can release in amorphous phase be used made without oven heat, according process. this support use waste (fly ash soil) local (straw ash) mortar-forming materials. Furthermore, it aid development eco-friendly (environmentally friendly) national infrastructure eliminating need heat initiate polymerization reaction. However, research also developed increase strength mortar, which resembles conventional concrete general. Doi: 10.28991/CEJ-2023-09-06-012 Full Text: PDF