Effect of Used Engine Oil in Properties of Fresh and Hardened Concrete Containing Fly Ash

Application of mineral, agricultural and industrial wastes in concrete manufacturing are
being popular in current practices. It is due to fact that most of them have proved to be
beneficial in enhancing the several characteristics of concrete. Used engine oil is an
industrial waste that is hazardous in nature and its safe and legal dispose is an issue.
Earlier research on the effects of used engine oil on basic properties of concrete was quite
encouraging and concluded that it behaves as superplasticizers without the loss of
strength of concrete. In this research strength, porosity and permeability of wide range of
concrete mixes containing OPC and OPC blended with fly ash mixes were investigated
and the effects of used engine oil on such properties were found quite positive.