Modelling the early strength of alkali-activated cement composites containing palm oil fuel ash

Palm oil fuel ash (Pofa) and polyvinyl alcohol fibres were used to make an alkali-activated cementitious composite mortar, which was then tested. Based on the test results, a support vector regression model was developed to estimate the effect of the alkaline activator/Pofa ratio on early compressive strength at different added water contents. The results from the model show that the mortar strength increased as the sodium silicate+sodium...