Using plastic waste from the curtain assembly plant as an ingredient in concrete for plant pots

Abstract

This study aims to use the plastic waste from a Chiang Mai curtain manufacturing facility as a material in concrete to create plant pots by mixing cement binder and gypsum plaster in a 0.5: 0.5 ratio. A sieve with an opening of 25, 10, and 4 mm was used to separate three forms of plastic waste (HDPE, ABS, and POM) into equivalent granules. The binder to water ratio was 1, and plastic waste was combined with 0, 0.05, 0.1, 0.15, and 0.2 by weight. Concrete sample cube with dimensions of 10 x 10 x 10 cm were used. The compressive strength was investigated at 14 and 28 days. A water absorption test was studied at 28 days. The results showed that the mixing of granulated plastic waste in larger quantities resulted in a decrease in density and compressive strength. At the same time, moisture and water absorption tended to be increased. The properties obtained make it suitable for producing small and large plant pots for use in the next entrepreneur's CSR