From Plastic Waste to Sustainable Infrastructure
For decades, plastics have provided us with transformative inventions. As a consequence, our irresponsible use of the material had an impact on our planet. The plastic crisis is an increasingly growing problem, and each year more than 359 million tonnes of plastic is produced [1]. Hence, a large number is being discarded in our oceans, mountains, and soils. Naturally, we consider plastic as being an issue for the environment. In order to take better care of our planet, we must think of responsible ways to deal with plastic. Influenced by the idea of a circular economy, plastic waste can be repurposed into different forms of life. This is a concept that is becoming of interest in architecture and urban planning. In particular, using plastic waste as an eco-friendly alternative to usual construction materials such as bricks and concrete. This may be the future of sustainable infrastructure. Let’s dive deeper into the subject, shall we?
Preserving Natural Resources
Considering the current world population and increasing urban development, the demand for construction resources is bigger than ever. As there is a growing scarcity of natural resources, there is potential in working with plastic waste. Indeed, it can reduce the need for natural materials and an effort to preserve biodiversity [1]. Plastics are affordable and easy to mould compared to traditional building materials. For instance, the Canadian company Goodwood Plastic Products converts plastic waste into fake wood to create outdoor furniture. In addition, they reuse 80% of recycled plastic from the city of Halifax [2].
By creating products similar to raw materials, the prospect of keeping plastic waste away from our ecosystem will have a positive impact. In turn, the deep-rooted longevity of natural resources will be protected for future generations.
Sustainable Infrastructure for decades
Plastics Europe states that “the use of plastics in buildings and construction saves energy, reduces costs, enhances quality of life and helps to protect the environment at the same time” [3]. Plastic waste has properties that make it difficult to fully decompose in the long run. Statistics have shown that the lifespan of plastic is 30 to 50 years [3]. That being said, relying on plastic waste as a material means less of a need to frequently replace and build new infrastructure. Moreover, there would be more emphasis on improving existing buildings which meet environmental and societal needs.
Using plastic waste “enables significant long-term financial and energy savings” [3]. In other words, it may control sprawling developments throughout the city. With plastic’s long-lasting features, there is less financial strain as construction would be less impulsive. Plus, there is more concern for proper and sustainable urban planning. In terms of energy saving, plastic waste conserves an additional 16% compared to alternative insulation materials [3]. This also cuts out on greenhouse gas pollution which is highly produced from buildings and construction.
The World’s First Recycled Bike Lane
In the Netherlands, the city of Zwolle introduced a bike path made entirely of recycled plastic. Although it is still in its pilot phase, the project can be used as a model for future sustainable endeavors in other cities. Furthermore, the bike lane is a perfect example of plastic waste being applied to architecture and urban planning.
The 30 metres two lane bike path is made of old plastic bottles, beer cups, cosmetic packaging and plastic furniture [4]. Proven to be 60% more durable than asphalt, it can be removed and recycled into new materials and infrastructure, if there is any damage. With that in consideration, there are other benefits to the plastic bike lane such as storing rainwater, “which can help prevent flooding with plenty of room to accomodate cables and pipes” [5]. The project is aiming to branch out in different areas including parking lots, train platforms and sidewalks. The goal is to use 100% recycled materials to create new infrastructure.
References:
[1] BBC - “Why Plastic Waste is an Ideal Building Material”
[2] World Economic Forum - “This ‘fake wood’ is transforming the Canadian furniture industry”
[3] Plastics Europe. (2012). Plastics Architects of Modern and Sustainable Buildings. 1-13. Plastics Europe.
[4] Tree Hugger - “World’s First Recycled Plastic Bike Path Opens in the Netherlands”
[5] Archdaily - The Netherlands Unveils the World’s First Recycled Plastic Bike Lane
