F O C U S 6
ACTION 14 Promote spoil recycling
Spoil recycling means using spoil to meet existing needs
in certain industries or for public works in order to preserve
natural resources. Most spoil from the Grand Paris Express
is currently used in aggregate and gypsum quarry
redevelopment projects. Some is also recycled as clinker
by cement plants.
Recycling spoil as filler for public and private development
Reductions in the volume of spoil excavated are encouraged
at the design stage. Furthermore, the quantity of spoil to be
disposed of can be reduced by assessing the opportunities
to reuse it as filler on the worksite where it was extracted or
across worksites involving other contracts for the various
metro lines.
In addition, the aim is to recycle spoil for development
projects spearheaded by local stakeholders, for example for
the development of urban parks.
(bricks, ceramics, tiles, cladding, cement, etc.) made from
the spoil excavated from its worksites. It identified current and
future recycling capacities through the 2019 publication of
a call for expressions of interest for the spoil recycling industry.
In addition to the platforms that are already accepting
spoil from the Grand Paris Express, 35 other operators in
the industry with 110 platforms were identified. Each platform
can use spoil to replace quarried resources, for uses that vary
depending on the type of spoil.
Recycling as filler and materials diagram
The “Ligne Terre” project for local authorities and public
developers, launched in 2019 to identify new projects,
is ongoing. A call for expressions of interest by private
developers has also been launched. A total of 15 development
projects have been identified. Work on reliability is under
way for several projects; others have already accepted spoil
from the Grand Paris Express.
Recycling spoil for industrial use in construction
material production
Société du Grand Paris is also seeking to encourage recycling
spoil for construction material production. It encourages
the growth of external industries to develop new materials
Recycling as FILLER Spoil is used as filler, with or without pre-treatment (sorting, depollution, etc.)
Recycling for MATERIALS Spoil is transformed and used as a construction material, to replace a natural resource (brick, cement, aggregate, etc.)
Construction projects (real estate projects, infrastructure, etc.)
Quarry filler
Local development projects (parks, landscaping, etc.)
Recycling as FILLER
Recycling as FILLER
Eco-friendly materials (brick, cement, etc.)
Eco-friendly materials (cement, etc.)
Eco-friendly materials (brick, cement, etc.)
Recycling for MATERIALS
Recycling platform
GRAND PARIS EXPRESS WORKSITE
RISKS AND CHALLENGES
2020 ACTIVITY
CSR APPROACH
Actions
IDENTITY
CSR APP OACH
Actions
