Effect of curing conditions on the properties of OPS-concrete

The effect of six types of curing conditions on pulse velocity and compressive strength of OPS-concrete (oil palm shell as coarse aggregate) and control concrete has been studied. The development in the pulse velocity and the compressive strength of OPS-concrete is more in full water curing followed by partial plastic, full plastic and partial water curing. Compressive strengths of OPS-concrete, ranges 20–24.25 N/mm2 for 28-day, were satisfactory for structural lightweight concrete. In this study, it appears that strength development is impeded due to early drying and due to the presence of organic OPS aggregate.