Use of Waste Materials in the Production of Concrete

Abstract

The world’s demand for construction aggregates has been increasing over the last years, mainly due to the rapid economic growth of countries such as Brazil, China and India. Naturally, this growth stimulates the development of construction and demolition activities, thereby generating increasing amounts of waste. This paper presents a state-of-the-art review of the experimental research on the effect of incorporating aggregates of different types and shapes, sourced from construction and demolition waste. This review also covers studies on the incorporation of waste materials coming from industrial activities, emphasising those performed in the Instituto Superior Técnico, of the University of Lisbon, Portugal.

Possibilities of Using Clinical Waste Combustion Products as an Aggregate in Manufacturing Construction Materials

“…Thus the combustion products may be used as an energy source or may be recycled [16]. The ash is mainly used in the construction industry as a conctrete additive or a cement supplement [17][18][19], for road construction [20,21], for waste areas [22,23] and in agriculture [24,25].…”

Assessment Of Industrial Waste and Additives Materials Use in The Sustainable Design of Concrete

“…GGBS particles, used to replace fine aggregates, are typically less than 5 mm [1], whereas cement substitutes range from 0.1 to 250 mm, reflecting the normal spread of cement particles. According to [2], crushing time greatly affects GGBS particle size for cement substitutes. As an aggregate substitute in concrete, steel slag cement concrete had greater durability and properties than conventional concrete, and it had lower slump and flow values mixture content rises [3].…”