Sustainable concrete with scrap tyre: Impact on strength and health

Abstract

The increasing of scrap tyres is unknown to what extent these tyres are disposed of in a way that is environmentally friendly and legal. Therefore, one way should be worked out to reduce scrap tyres and preserving the environment. To relate the issue of achieving enviro mental sustainability with the construction industry, this study was carried out by adopting scrap tyres crumbs replacing coarse aggregates in the concrete mixture called as tyre crumbs concrete (TCC). This study aimed to investigate the compressive strength of TCC and the effect of its use as construction materials, to consumer health. The TCC mixtures were designed in various replacement of coarse aggregate with tyres crumbs of 5%, 10%, and 15% over coarse aggregate volume. All specimens were tested in both material strength and environmental laboratory to determine TCC structural strength and also the hazardous level of TCC to the life health through water quality test. The result of this study found that 10% of the scrap tyres replacement is the most optimum TCC mixture design in which the strength is similar to the control concrete. The environmental test on curing water also found the pH, BOD, and COD gave no harmful substances leaching from the cube specimens. In conclusion, the use of scrap tyres in concrete manufacturing can reach the sustainability of construction resource, environmentally and economically, in line with Sustainability Development Goal 2030, the agenda of the United Nations Development Program.