THE DEVELOPMENT OF GREEN CONCRETE MIXED WITH USED EPS FOAM FOR CONSTRUCTION

Abstract

The purpose of this research is to study the efficiency of green concrete that mixed with used ESP foam for construction by mixed EPS foam with typical mixing, comparing with typical concrete and assessment for cost of concrete mixed with used ESP foam. The testing of compressive strength compared with typical concrete and green concrete which mixed with EPS foam in rate of 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, and 0.7% by weight of fine aggregates and the curing age of 7,14 and 28 days. The results have shown that increased EPS foam the lower the strength compare to typical concrete. The proper percentage of EPS foam is no more than 0.3 % by weight, average strength of 218 kg/cm² and average density of green concrete is 2%-6% lower than density of typical concrete.   The cost of green concrete is around 1980 baths per cubic meter which is 3% lower than typical concrete. The CO₂ reduction of EPS foam disposal processing is around 0.02-0.17 kg per 1 m³ of green concrete.