Strength Properties of Geopolymer Concrete with Various Molar Concentrations (8m to 16m)

Abstract

Concrete is a popular material in the building industry. Concrete is in higher demand than ever before for infrastructure construction. The manufacturing of cement emits CO2 to the atmosphere and it leads to global warming. As Geopolymer concrete is cement free concrete, it is chosen as an alternative concrete. Also Geopolymer concrete comes under green concrete; but it requires temperature curing to get the sufficient strength. Geopolymer concrete is activated by alumina and silica by mixing with alkaline solution containing sodium or potassium hydroxide and sodium or potassium silicate solution. The strength characteristics of several classes of geo-polymer concrete with variable molarity concentrations were investigated in this article. Sodium hydroxide (NaOH) and sodium silicate were the alkaline liquids used in this geopolymerization experiment (Na2SiO3). Different molarities of sodium hydroxide solution (8M to 16M) are used to produce various combinations. As study specimens, 150 x 150 x 150 mm cubes were employed. At 7 and 28 days, the compressive strength of geo-polymer concrete specimens is tested.