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Inventory of our residual materials

→ Green value chain → Circular economy

Since 2021, we have been taking stock of residual materials on our sites to

better understand the f low of materials generated and f ind solutions to divert

them from landf ills.

In 2022, our projects generated 148,228 tons of residual materials (not includ-

ing soil). The deconstruction of the original Champlain Bridge alone generated

104,539 tons of residual materials that year. Across all our projects, we diverted

92% of residual materials from landf ills. Excluding residual materials generated

on the deconstruction of the original Champlain Bridge, we diverted 72% of

residual materials from landf ills, a 4% increase compared with 2021.

For all our building projects seeking sustainable certif ication, this number

rose to 98%, which exceeds the minimum target of 75% required for LEED

certif ication. This proves that seeking certif ication is an important incentive

for recovering residual materials.

In 2023, we will be focussing our efforts on developing a traceability

platform to optimize data collection and track the f low of residual materials

generated by our projects. We’re relying on our sense of innovation and

our teams’ expertise to develop this transformative tool and respond to the

needs of our clients who would like greater visibility in the traceability of

their construction residues.

2021 2022

2021 2022

Diversion rate

Building projects certif ied

or seeking certif ication

Non-certif ied projects

Residual materials generated on site by type, in tons

T o n s

90%

68 %

Aggregates

Metal

Mixed and domestic waste

Gypsum

Paper and cardboard

Plastic

Residual hazardous materials

Fine asbestos f ibres and polystyrene

Concrete and cement

Mixed materials

Wood and f ibres

Asphalt

Our perspective

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Health and safety

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Culture of innovation | Climate change

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Circular economy

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Community relations

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Indigenous relations

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Diversity, equity and inclusion

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Governance

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