BIS: Enhancing Standards for Recycled Aggregates in Concrete

S. Divya, Scientist D/Joint Director, Civil Engineering Department, BIS, discusses the inclusion of C&D waste in concrete standards through IS 383:2016 and the development of guidelines for recycled aggregates. She highlights ongoing efforts to refine processing stages and maximize the use of C&D waste effectively in construction materials.

We have IS 383:2016 for aggregates used in concrete, which introduces the term "manufactured aggregates." This category includes C&D waste and other industrial byproducts. These materials can be processed and used in concrete, including PCC, RCC, and lean concrete, up to a certain percentage.