SOCIALSCI JOURNAL

The Use of Recycled Aggregates and Used Tyres As Replacement of Natural Aggregates for Flood Wall

Abstract

Ng Yao Xin Saeralyn1, Ng Kim-Soon1, Nur Fatihin Najila1, Suwarna Subramaniam1,Ismail Yusof

Waste materials that are not biodegradable often cause disposal problem and environmental pollution. The use of recycled aggregates (RA) as replacement natural aggregates (NA) in concrete is a sustainable industry alternative. However, there is lack of useof RA as a substitute to NA as a structural material in the constructio n industry,and this is more so in its application as a construction material to build flood wall to retain water. Thus, this project has been carried out in the laboratory to test thecompressive strength, workability and permeability strength of the formulated RA and design a flood wall model using RA to demonstrate its uses in retaining water. The aggregates used in the investigation comprises of 80% used aggregates and 20% recycledtyres as replacement of the coarse and fine aggregates for structure material for flood wall. Suitability of concrete using the used aggregates and vehicle tyres to cast concrete in the flood wall model has shown positive results. It is suggested that other than its application in flood wall, the concrete using used aggregates and used vehicle tyres to replace natural aggregate can also be used in lightweight structures and in construction where lower strength of concrete can be applied.