Investigations Impact of Super Fly Ash Plus onConcrete Mechanical Behavior

Pozzolanic materials refer to silica and alumina substances that form strong and permanent compounds with adhesive properties when mixed with water and lime. A significant advantage of using pozzolanic materials is their ability to reduce pollutants during cement production while also preventing surface cracking and enhancing resistance against chemical attacks and sulfates. Fly ash (FA), a common byproduct of coal combustion is a green environmentally-friendly material and pozzolanic additive that can substitute a portion of cement and help reduce pollution associated with cement production. In this paper, we present the findings of an experimental study that utilized a pozzolanic additive called Super Fly Ash Plus (SFAP) as a partial substitute for cement. To achieve this, in conjunction with identification through X-ray fluorescence (XRF) analysis, the effects of SFAP contents of 0, 5, and 10% were individually assessed on the compressive strength, and modulus of elasticity measurements for a curing age of 28 days. The findings indicate that when the Water/Cement (W/C) and aggregate grading remain constant, increasing the SFAP content enhances the effectiveness of the concrete. Furthermore, SFAP potentiated an increase in the compressive strength, elasticity modulus, and long-term durability of concrete. The most significant improvements were observed at a 10% content.