TREATED SEA COMPONENTS CONCRETE

Abstract

This paper has introduced the concept of sustainable concrete. To save pure water and sand quarries, both seawater and sea sand have been used in concrete mix instead of pure water and normal sand. In addition, the cement has been partially replaced by ash from palm tree wastes to address the effect of salinity on the mechanical properties of the concrete. The workability and compressive strength of concrete were investigated for various percentages of replacement of sea-sand and palm tree waste ash. The slump and compression tests were completed, with the concrete compression test completed after 7 days and 28 days of curing with seawater. The results showed that replacing 30% of the normal sand with sea-sand and 5% of the cement with palm ash wastes in the presence of seawater as a full replacement of the tap water increased the compressive strength by 48.5% when compared to normal concrete with sea water as a mixing water.