An Overview on Waste Materials Used in Engineered Cementitious Composite

Abstract

This paper presents the overview on waste materials used for making engineered cementitious composite (ECC). Micromechanics-based ECC is a superb class of high-performance fibre-reinforced cementitious products. It is a mortar-based fibre-reinforced cementitious matrix and shows ductile nature due to excessive strain hardening under tensile loading. With the growth in industry the quantity of industrial waste product on land is increasing, thus resulting in environment pollution in different ways. In the ECC mix design, huge quantity of industrial waste products have been used such as silica fume, iron ore tailings powder, blast furnace slag, crumb rubber, recycled concrete fines, fly ash, palm oil fuel ash and so on. This study reported the effect of these industrial by-products on fresh, mechanical and durability properties of ECC. The present overview signifies that the subrogation of cementitious materials and fine aggregates with the industrial waste products in ECC improves deflection capacity, strain hardening behaviour, flexural and toughness properties, drying shrinkage tensile strain and width of cracks resistance of cementitious composite. The outcome of overview depicts that the properties of ECC enhanced with the use of waste products up to some replacement level, whereas the carbon dioxide emissions decreased, which made the ECC green in nature.