Abstract: The utilization of pozzolanic materials in concrete construction is increasing, and this trend is expected to continue in the years ahead because of technological advancement and the desire for sustainable development. One of the latest additions to this is Palm oil fuel ash (POFA), a waste material obtained from burning of palm oil husk and palm kernel shell as fuel in palm oil mill boilers, which has been identified as a good pozzolanic material. Palm oil fuel ash which contains siliceous compositions produces a stronger and denser concrete.