Engineering Attributes of Ternary Geopolymer Mortars Containing High Volumes of Palm Oil Fuel Ash: Impact of Elevated Temperature Exposure

Geopolymer mortars made from various waste products can appreciably reduce carbon dioxide emissions and landfill-related issues, making them viable substitutes for ordinary Portland cement, a workhorse in the concrete industry. Thus, series of ternary geopolymer were characterized to determine effects exposure elevated temperatures (from room temperature up 900 °C) on their engineered (residual compressive strength, weight loss, slant shear bond strength) microstructural properties. These mortars, which contain fly ash, ground blast furnace slag, high volume palm oil fuel designed activate via incorporation an alkali activator solution at low concentration (molarity 4). The temperature-mediated deterioration mortar was quantified using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, thermogravimetric analysis. results revealed improvement mortars’ resistance against when ash level matrix raised 50 70% slag replaced by ash. It asserted that proposed may contribute advancement green concretes demanded construction sectors.