The contamination levels of recycled aggregates from construction and demolition waste in compliance with Italian and Spanish regulations.

The aim of this study is to perform a comparative analysis of Italian and Spanish regulations for construction and demolition (C&D) waste management, to produce recycled aggregates (RAs). Furthermore, this study seeks to compare the results derived from the examination of leaching test results from RAs collected in both countries to identify the most critical pollutants. Our research involved a comprehensive comparison and analysis of waste management regulations in Italy and Spain, highlighting both commonalities and disparities.

Impact of Recycled Aggregate on the Mechanical and Environmental Properties of Concrete: A Review.

This review aims to present and discuss the mechanical and environmental properties of two different type of recycled aggregates obtain from construction and demolition waste (CDW): (1) Recycled Concrete Aggregates (RCA) and (2) Mixed Recycled Aggregates (MRA). In addition, the properties of the concrete in the fresh (workability, water/cement ratio) and hardened state (mechanical and durability properties), as well as the environmental impact of the concrete produced with the two types of recycled aggregates, are presented and discussed. Due to the heterogeneous composition of recycled aggregates, the concrete properties can be significantly variable.