• Construction
  • Recycling
Amount granted


The decohesion process is a pavement rehabilitation technique that is carried out in situ, reusing materials from the existing pavement. The process involves decohesifying the in-place bituminous pavement and mixing it with a predetermined thickness of the underlying granular base, sometimes with the addition of a corrective material (virgin aggregate). The decohesive in-place recycling technique is the most widely used rehabilitation technique in Quebec.

As part of this project, we plan to carry out laboratory studies on the potential use of concrete and steel slag residues as grading correction materials to replace natural aggregates. Ultimately, the overall aim of the project is to maximize the circularity of this rehabilitation technique by avoiding the use of virgin granular materials.

Affiliated research axes

Axis 3: Resource and Product Maximization

3.2 – Develop a conceptual framework of tools that may be mobilized to identify better circularization scenarios for products, components and resources at the end of their life cycles


  • Éric Lachance-Tremblay

    ing., M.Sc.A., Ph.D.
  • Jean-Claude Carret

    Ph.D., ing. PRT. Professor


Amir Ali Khanjani

Student at ÉTS

Maicon Basso Dos Santos

Doctoral student at ÉTS

Sébastien Lamothe

Research professional at ÉTS
The RRECQ is supported by the Fonds de recherche du Québec.
Fonds de recherche - Québec