Recycled Glass-Infused Concrete Bridge for a Greener Tomorrow | Darwin Bridges

Canadian architecture firm Provencher Roy has unveiled the Darwin Bridges, an innovative curved bridge on Nuns’ Island, located outside Montreal. The structure, crafted from concrete incorporating recycled glass, replaces a pair of two-lane bridges erected in the 1960s to cater to the burgeoning suburban community and connect it with the highway system. Provencher Roy has been enlisted to redesign the deteriorating originals, opting for a curving form that maintains its automotive function while prioritizing pedestrian access. Know more about it on SURFACES REPORTER (SR).


Over 40,000kg of glass, equivalent to roughly 70,000 wine bottles, were reportedly utilized.

The studio highlighted the challenge of working within the design and construction standards of the 1960s, which heavily favoured automobiles. The curved bridges, adorned with arches, feature a cast-in-place concrete aggregate with a softer colour than traditional concrete. The aggregate includes recycled glass transformed into ground glass pozzolan (GGP), constituting around 10 per cent of the mix. This not only reduces the total CO2 emissions but also enhances the concrete’s mechanical properties, thanks to the reaction between cement and GGP, forming calcium silica hydrate. Over 40,000kg of glass, equivalent to roughly 70,000 wine bottles, were reportedly utilized.


The aggregate includes recycled glass transformed into ground glass pozzolan (GGP), constituting around 10 per cent of the mix.

The GGP, when ground into a fine particle powder and introduced to concrete, reduces permeability and increases durability. The method is approved by the American Society for Testing and Materials (ASTM). Stainless steel reinforcements further fortify the bridge’s strength. The mixture is also expected to enhance the material’s resistance to Montreal’s harsh climatic conditions, with an estimated lifespan of 125 years.


 A retaining wall between the bridge structures, adorned with plants, forms a tranquil space described as a soothing secret garden.

The studio prioritized the pedestrian experience with an expanded median along the highway, creating a bow-like form. A retaining wall between the bridge structures, adorned with plants, forms a tranquil space described as a soothing secret garden. The exterior faces of the bridge showcase stylized concrete, featuring half circles and flower stems, while LED lights ensure a safe walking environment. The Darwin Bridges stand as the first road bridges completed by engineers in Montreal in half a century, marking a significant achievement in urban infrastructure development.

Image credit: Stephane Brugger

×
×

Post Your Comment


"Content that powers your Business. News that keeps you informed."

Surfaces Reporter is one of India's leading media in Print & Digital Telecast for News on Interiors & Architecture Projects, Products, Building Materials, and the Business of Design! Since 2011, it serves as a referral for designers & architects to know about inspiring projects and source new products. If you have a Product or Project worth publishing in Surfaces Reporter, please email us hello@surfacesreporter.com or you can also submit your project online.

Like Surfaces Reporter on Facebook | Follow us on Twitter and Instagram | Subscribe to our magazine | Sign Up for the FREE Surfaces Reporter Magazine Newsletter

Geometric Office Block Enveloped by Pleated Facades By Peter Pichler Architecture

Italian architectural firm Peter Pichler Architecture has created the modern headquarters for Bonfiglioli, a manufacturing company located in Bologna. The building stands out with its angular design and a tilted roof covered in pleated mesh.

Read more

Indian Grey Stone and WPC in a 22,000-Square-Foot Home Designed by SSDA Architects in Delhi

The most striking feature of the project is its facade, especially the impressive southern part that fusion of Indian grey stone, WPC, white paint, and textured grey paint, accentuated by metallic elements such as columns, louvres, and channel finishing in duco, resulting in a visually striking appe

Read more

Red Pigmented Concrete Facade Adorns BIG’s Latest EPIQ Skyscraper in Quito | Ecuador

Situated adjacent to Quitos vibrant La Carolina Park, this 24-storey architectural wonder stands proudly at a corner intersection, strategically placed opposite a metro entrance for optimal accessibility.

Read more

Indias Construction Boom: Third-Largest Market by 2025

Government investment drives rapid growth and job creation

Read more


This is alt