Use of plastic waste in sand concrete

This study investigated the utilization of two type of waste plastic (polyethylene terephthalate (pet) and low density polyethylene (ldpe) used for bags manufacture) as a fibers and fine aggregates (powder) in sand concrete. various volume fractions of sand (10%,20%,30% and 40%) were substituted by the same volume of plastic aggregates,and various amount of plastic fibers (0.5%,1%,1.5%,2%) were introduced by volume in sand concrete mixes.the physical and mechanical properties of the composites produced was studied.the results showedthat the use of plastic waste as partial replacement of sand contributes to reduce the bulk density,decrease the air content,causing a increase in compressive and flexural strength and especially for 10% and 20% of replacement. in addition,the reinforcement of the cementing matrix with plastic fibers induced a clear improvement of the tensile strength. this study insures that reusing waste plastic in sand concrete gives a positive approach to reduce the cost of materials and solve some environmental problems.