T A B L E O F I N D I C A T O R S

IN 2020

Two pilot projects launched

in 2020 Two pilot projects – the development of

the Saint-Denis Canal, with Plaine Commune

and Plaine Commune Développement,

and the urban renewal scheme in Francs

Moisins – were launched in 2020. The aim is

to integrate concrete made from recycled

materials into these development projects

and, more importantly, to create momentum

beyond the Grand Paris Express to make the

approach more widespread.

Raising awareness of

materials reuse Société du Grand Paris is currently

developing an “eco-friendly materials

guide” for programme managers, to raise

awareness of the potential for reusing spoil.

The aim is to standardise Société du Grand

Paris’s approach and promote its practices.

The visibility of its recycling approach has

also increased among the general public,

thanks to a special exhibition space at

the Fabrique du Métro, numerous

articles published in newspapers, and

multidisciplinary events organised by the

youth unit.

A incentive-based procurement

strategy for promoting the

circular economy In the tender documents for the first

design-build contract for Line 15 West,

Société du Grand Paris set some ambitious

targets for the use of eco-friendly materials

from spoil excavated from the Grand Paris

Express: 20% for filler materials and 40%

for tunnel lining materials. The technical

feasibility of these reuse practices has been

verified by means of formulations developed

in the laboratory and by approaching partner

platforms that are already able to recycle

spoil. Initial tenders are expected in 2021.

The partnership with Plaine

Commune is bearing more fruit Following the signing of the partnership

in 2019, Société du Grand Paris completed

a study of the specifications for two

neighbourhood developments and made

proposals for alternative materials for land

reinforcement at Fort d’Aubervilliers.

ACTION 15 Promote the production/use

of recycled materials in construction

In addition to its efforts to expand the industry and develop

processes, Société du Grand Paris has begun efforts

to incorporate incentives into its works contracts and

ensure reuse of the excavated spoil in materials to meet

local development needs.

To that end, in 2019 it signed a partnership agreement with

the Plaine Commune public territorial establishment to

convert spoil from the Grand Paris Express into eco-friendly

materials for use in local construction and development

projects.

Société du Grand Paris also assists its public procurement

partners, through working groups or proposals, to find

incentive mechanisms that can be incorporated into

development contracts for pilot sites.

SUCCESSFUL FORMULATIONS

DEVELOPED AT THE LABORATORY

STAGE FROM SPOIL FOR

COMMON AGGREGATE

APPLICATIONS (PROCESSED

GRAVEL, GROUT, MORTAR,

CONCRETE, DYKES, FILLER).

THIS WILL HELP TO OVERCOME

ANY TECHNICAL OBJECTIONS

23

F O C U S 6

RISKS AND CHALLENGES

2020 ACTIVITY

CSR APPROACH

Actions

IDENTITY