Sustainable or green concrete is made of using raw materials such as fly ash, recycled concrete aggregates, and aluminum can fibers.
Fly Ash- Widely used sustainable raw material for concrete is Fly Ash, which is a waste product from coal power plants and is commonly disposed of in ponds and sent to landfills. Fly ash has the potential to replace cement, a material with large environmental impacts due to air pollution from the cement plants.
Recycled Concrete Aggregates- To reduce the consumption of raw materials and to minimize the wastes generated from demolished concrete structures, crushed concrete can be reused as aggregates.
Aluminum cans- Aluminum cans, which are used for the aerated drinks, can be easily processed into chopped fibers and used as reinforcement in concrete.