Study on the Pozzolan Reaction Degree of Palm Oil Fuel Ash as a Mineral Admixture

Recently, the use of replacement material increased dramatically due to the increase of environmental awareness. This paper presents experimentally investigated the effects of pozzolan made from various by-Product materials on mechanical properties of mortar. Ground fly ash (FA), Ground Blast furnace slag (BFS), and Palm oil fuel ash (POFA) were partially used to replace Portland cement. After curing, the mortar containing 10-30% FA or POFA, and 30% BFS exhibited compressive strengths that of the original Portland cement (OPC). The use of FA, POFA, and BFS to partially replace Portland cement has evaluation method of the Pozzolan activity index