The construction industry, one of the world’s largest consumers of natural resources, faces a growing challenge: the depletion of natural sand and the mounting problem of construction and demolition (C&D) waste. Traditionally, river sand has been the primary fine aggregate used in concrete production. However, the environmental cost of river sand mining — from ecosystem degradation to... http://medium.com/@doctorsand2021/recycled-concrete-sand-building-sustainability-from-construction-debris-02f9d59c6514