RESIDUOS DE HORMIGÓN COMO ÁRIDO GRUESO EN MATRICES CEMENTANTES:REVISIÓN

The aggregates present in concrete composition are non-renewable resources obtained through multiple mining or extraction innovations, which cause significant damage to nature. At the same time, the increasing generation of concrete waste is a worrisome reality. Most construction and demolition waste is quimically inert and nonhazardous, however it represents a problem when it is disposed of, since landfills have their useful life shortened due to the large volume of this type of disposal. Therefore, this article’s objective is to survey the caracteristics of concrete waste and the properties of concretes produced using this type of residue as coarse aggregate. A systematic literature review is carried out and the feasibility of applying hardened concrete waste as recycled aggregate in cement matrices is discussed. It is observed that composites with recycled aggregates present similar characteristics to conventional concrete, being within usable ranges based on normative references, such as the properties of compressive strength, water absorption, density and modulus of elasticity. Therefore, it is viable to incorporate recycled aggregates as partial replacement for conventional aggregates.