Using of Para-rubber to Develop Properties of Concrete Block Mixed with Ethylene Vinyl Acetate Plastic in Masonry

Abstract

The aim of this research is to use Para-rubber (vulcanized latex) as an admixture for improving the properties of EVA plastic waste concrete block. In mix design, cement per EVA plastic waste per quarry dust per water ratio is 1:0.5:4:1.6 by weight, vulcanized latex per cement ratios are 0.00, 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, 0.40, and 0.45 respectively (by weight of cement), no charge surfactant is 4% (by weight of vulcanized latex). The suitable ratio of vulcanized latex per cement in this testing is 0.15 (by weight of cement). The properties are obtained as follows. 1) The average density in 14 days is 1,169.59 kg/m³. 2) The average water absorption in 14 days is 9.33%. 3) The average compressive strength in 28 days is 25.74 ksc. 4) The coefficient of thermal conductivity is 0.1527 W/m.K. 5). The sound absorption coefficient at 2,000 hertz is 0.38. 6) The noise reduction coefficient is 0.3. It can be seen that many properties are better than normal EVA plastic waste concrete blocks.