Recycled aggregate concrete (RAC) – comparative analysis of existing specifications

Abstract

This paper presents an overall review on how the production of concrete with recycled aggregates is treated in normative standards of different countries, as well as its response to the need for a sustainable development. Based on existing norms and specifications that allow the use of recycled aggregates in the production of concrete, a comparison is made of the parameters involved, such as density, water absorption and contaminants ratio within the recycled aggregates and maximum strength allowed for the recycled aggregate concrete, among others.