Lightweight Low Carbon Concrete Using Secondary Aggregates- A Review Study

Increased urbanization and industrialisation have made concrete the most widely used material. Due to natural resources scarcity, not only raw materials as constituents can fulfil the requirement. The prime need is to reduce the overall carbon footprint and solid waste management by using recycled concrete, agricultural and industrial waste material. This paper reviews some researches of obtaining lightweight concrete using waste and recycled materials such as agricultural waste, plastic waste, expanded clay aggregates and scrap rubber tyres. The physical and mechanical properties of these materials have also been discussed in this paper. A comparative study has been done showing compressive strength, flexural strength, workability, durability of lightweight concrete and conventional concrete to promote the idea of using these materials in concrete