ABSTRACT
This chapter is dedicated to qualitative and quantitative characterization of the resource of reusable materials in concrete in France. It originates from two sources:
a statistical study based on the exploitation of data issued from the reports written by a French regional organization acting in the frame of the departmental construction and public works waste management plan. This study allows to approach a national consistent evaluation by waste types clarifying several evolution tracks related observed practices;
466a recycling platforms supervision – 13 representative sites of national diversity – showing medium course of recycled aggregates over several months with a focus on two sites during 24 months.
The first study integrates the conclusion of the platforms monitoring in order to approach the ways of actions to increase recycling in concrete considering the current practice and its knowledge. Furthermore, a geographical characterization of twelve of the main French urban areas is made by the inventory of recycling sites and their spatial distribution in relation to concrete production units (ready-mix and precast concrete factories). Thus, scenarios are prepared to provide the life cycle analysis that has been carried out on four towns (Lyon, Lille, Strasbourg, Bordeaux, see chapter 30). Finally, recycling target published in the 2015 Energy Transition Law has been added with a specific development linked to the increased risk of competition in the recycling between public works (road subbases and embankments) and concrete utilizations.
