Palm Oil Fuel Ash (POFA) and Eggshell Powder (ESP) as Partial Replacement for Cement in Concrete

Abstract

This study is an attempt to partially replace Ordinary Portland cement (OPC) in concrete with palm oil fuel ash (POFA) and eggshell powder (ESP). The mix proportions of POFA and ESP were varied at 10% of cement replacement and compared with OPC concrete as control specimen. The fineness of POFA is characterized by passing through 300 μm sieve and ESP by passing through 75 μm sieve. Compressive strength testing was conducted on concrete specimens to determine the optimum mix proportion of POFA and ESP. Generally the compressive strength of OPC concrete is higher compared to POFA-ESP concrete. Based on the results of POFA-ESP concrete overall, it shows that the optimum mix proportion of concrete is 6%POFA:4% ESP achieved compressive strength of 38.60 N/mm 2 at 28 days. The compressive strength of OPC concrete for the same period was 42.37 N/mm 2 . Higher water demand in concrete is needed due to low fineness of POFA that contributing to low compressive strength of POFA-ESP concrete. However, the compressive strength and workability of the POFA-ESP concrete were within the ranges typically encountered in regular concrete mixtures indicating the viability of this replacement procedure for structural and non-structural applications.

Incorporation of Palm Oil Fuel Ash and Egg shell Powder as Supplementary Cementitious Materials in Sustainable Foamed Concrete

“…Thus total 40% of cement replacement is possible without losing compressive strength of concrete. The trend observed during this experimental work is similar to previous studies [36,37].…”

“…Cement is a vital ingredient of all types of concrete; thus, with the increase in construction using concrete, the demand for production of cement increases. Researchers [3,[13][14][15][16][17][18][19][20] have focused on the utilization of waste materials attempting to find alternative cementitious materials that can be used instead of cement and resolving the ever-growing environmental issues related to the generation of waste materials.…”

Preliminary Investigation of Thermal Behavior of Lightweight Foamed Concrete Incorporating Palm Oil Fuel Ash and Eggshell Powder

“…6 Compressive strength of lightweight sustainable foamed concrete w.r.t control (S0) sample [24] |177 concrete but also increased the cement replacement content as 5-10 % ESP can also be used along with increased POFA content as cement substitute material, making a total of 40 % cement substitution without compromising the strength of concrete. The pattern found in this experimental study parallels previous studies [36,37].…”

Effect of Palm Oil Fuel Ash and Eggshell Waste Powder on Compressive Strength and Heat of Hydration for Concrete

“…Concrete mainly consists of cement, aggregates (coarse and fine aggregates) and water. Each material plays an important role in the mix, but cement is the most crucial as its binder material [1]. When water is mixed with cement, a cement paste is created, which glues fine and coarse aggregates together and hardens to form the hard mass called concrete [2].…”