STRUCTURAL PROPERTIES OF LIGHTWEIGHT SELF-COMPACTING CONCRETE MADE WITH PUMICE STONE AND MINERAL ADMIXTURES

This study investigates the structural properties of lightweight self-compacting concrete produced using mineral admixtures and pumice stone as aggregate. Lightweight self-compacting concrete (LWSCC) mixes were prepared using pumice stone as replacement for natural coarse aggregate, and ground granulated blast furnace slag and rice husk ash were added as mineral admixtures. The flowability of the concrete mixtures was achieved by using gelinium B223 super plasticizer. Structural properties such as: density, compressive strength, flexural strength, and split-tensile strength of the concrete samples were determined for different mix proportions. Test results revealed that 30-40% replacement of coarse aggregate by pumice stone is considerable for improved density, compressive strength, split tensile strength and flexural strength development in LWSCC