Abstract:
The management of an important volume of Construction and Demolition
Waste (C&DW) in accordance with the applicable legal framework in Portugal and in
European Union represents a significant source of concern for the producing companies
and for the European countries. A research project aiming to contribute to the
sustainable implementation of recycling of C&DW in road pavements is being
developed by two Portuguese research institutions since 2010. The main purpose of the
project is to respond to the issues raised by the national and international technical
community through the development of research concerning the application of
Construction and Demolition Recycled Materials (C&DRM) as unbound granular
material in road pavements. The research plan includes an extensive experimental
programme on several selected C&DRM and a natural aggregate (reference material).
According to chemical characterization of waste defined by the Portuguese legislation,
two recycled aggregates would have to be disposed at non-hazardous waste landfills.
However, either the contents of leached analyses obtained in the compliance batch
leaching tests or in the lysimeters tests indicate that C&DRM leachability is under the
limit values defined by the Portuguese legislation regarding waste admissible for
landfills of inert waste inert.
