Utilization of electronic scraps on making a concrete brick

Department of Chemical Engineering, Universitas Riau, Pekanbaru, Indonesia

^* Corresponding author: yusnisahan@lecturer.unri.ac.id

Abstract

Electronic scraps is becoming one of the environment issues globally, including in Indonesia. Innovation in the electronic technologies is growing very rapidly (printer, computers, mobile phones, etc.) and consumers tend to replace électronic goods in a relatively short time. However, the development of electronic tools is not comparable with the invention of its recycling technology, so landfill becomes the first choice to over come the number of electronic scraps that are increasing every year. Most of the electronic scraps are made from ± 30-65% engineering thermoplastics and the rest are metal alloys. In this research, an alternative effort has been made for utilization of thermoplastics as a partial filler replacement for fine sand into commercially valuable products, a concrete brick. As a result, the maximum compressive strength of the concrete brick is 219.968 kg/cm² by using thermoplastics ± 10% higher than a concrete brick normally, it does not cause scratches when scratched with nails, also not cause a loud sound when two bricks beaten one with the other and a punch is not too hard.