Properties of Lightweight concrete Using Different percentages of PVC as Fine Aggregate Replacement
Abstract
Each year, the concrete industry needs millions of tons of aggregate, including natural sand and gravel. The trend towards the use of recycled aggregates to save natural resources and to produce lightweight concrete has been increasing in recent years. The impact of using granular polyvinyl chloride (PVC) waste as a sand replacement on the concrete to produce lightweight concrete is investigated in this paper. The PVC waste was collected and partially replaced with fine aggregate from a PVC door and window manufacturing plant. (10%, 30%, 50%, 70%, 90% and 100%) by weight. This study investigated the fresh density, dry density, compressive strength, flexural strength, and splitting tensile strength at ages of curing (7, 14, 28, and 90) days. The results revealed that the compressive strength, tensile strength and flexural strength decreased when Increased PVC ratio. The compressive strength reduced by about 88% compare to reference mix at 90 days and fully replacement of PVC. The density was 1799 kg/m3. This is useful for non-structural components such as low-side construction, backfill cement, pavements, and others
