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What is Graphene? Graphene is a single layer of carbon atoms arranged in a hexagonal lattice, making it the thinnest material known to man. Despite its thin composition, graphene is incredibly strong — two hundred times stronger and 6 times lighter than steel. First isolated by researchers Andre Geim and Konstantin Novoselov from the University of Manchester in 2004, the material received the 2010 Nobel Prize in Physics, garnering increased global attention and interest. Graphene is durable and malleable, and scientists see promising architectural potential in the new material.
Graphene is also highly conductive and equally holds unique light-absorbing qualities. When it comes to conducting electricity, graphene rivals copper; when it comes to conducting heat, it trumps all other known materials. Meanwhile, graphene is nearly transparent, making it a suitable material for products such as touch screen devices, as well as light and solar panels. When mixed with plastic, graphene becomes a strong conductor of electricity, making it a potentially useful product in the satellite, aviation and automotive industries.
Although it is still in the early stages of research and development, there are many companies and research initiatives already dedicated to understanding the potential uses of graphene. Due to its unique property makeup, graphene can be used and applied in a plethora of ways, making it a worthwhile and lucrative material to research, study and develop commercially. This certainly holds true in the architecture and construction industry. Will this material have a revolutionary role in the design world?
Properties of Graphene:
- Thermal and electrical conductivity
- Flexible and malleable
- Extremely durable
- Ability to generate electricity through exposure to sunlight
- Transparent and lightweight
- Antibacterial & resistant to ionizing radiation
Graphene as a Concrete Additive
In 2018, researchers at the University of Exeter found that incorporating graphene into concrete can produce a durable and water-resistant concrete composite. Researchers at the university suggest this composite material is two times strong and four times more water-resistant than any existing concrete. Through a new nano-engineering technology, the researchers suspended thin graphene in water, which produced an extremely resistant and usable concrete composite. Seeing that concrete releases high levels of CO2 into the air, this new composite material perhaps promises a greener alternative to traditional concrete.
The research was carried out in accordance with the British and European standards for construction, which ensures a safe material for architects to build with. Moreover, graphene’s water-resistant properties could equally be beneficial for sites that are difficult to reach and properly maintain — making this concrete composite not only durable but practical. It is possible that graphene-reinforced composites could be the future.
National Graphene Institute by Jestico + Whiles, Manchester United Kingdom. © Hufton+Crow Photography
Intelligent Cities
Some have suggested that graphene can easily up building’s intelligence. Architect Chenthur Raaghav Naagendran explains his research in a TEDx talk in Vienna, where he explores the possibilities of implementing graphene as a flexible skin for architecture. He proposes that graphene can be used to make architecture interactive, intelligent and adaptable. Chenthur’s research suggests that graphene could be used to replace traditional building materials and wires to create smart structures that respond to societal threats, such as global warming. Essentially, graphene can turn static structures into responsive agents.
Graphene in Paint
In 2017, paint manufacturer Graphenstone released a lime-based paint infused with graphene. Limewash paint has been around for centuries and has been revered for its breathable, bacteria-resistant, odor-absorbing and hypoallergenic properties. The company incorporated graphene into its renowned lime-based paint to create a thermal-regulating product. To resist heat from radiating through walls, the graphene present in the paint assists in capturing heat and thus improves a room’s insulation. Graphene’s thin makeup and durable properties mean less paint is required to achieve a corrosion-resistant and durable finish.
National Graphene Institute by Jestico + Whiles, Manchester United Kingdom. © Hufton+Crow Photography
Summary
Understandings of the role that graphene can play in the architecture and construction sphere are still in the early stages of research. However, there are promising concepts and graphene-present materials in development today. Equally, there are countless research initiatives and institutions dedicated to the commercialization of graphene. For example, the National Graphene Institute at the University of Manchester, designed by architecture firm Jestico + Whiles, is a world-leading research center dedicated to the research and development of graphene. Located at the very same institution where the material was first isolated, this institute demonstrates the UK’s dedication to remaining at the forefront of graphene commercialization.
Although there are still factors standing in the way of graphene commercialization — such as cost and maintaining quality during large-scale production — graphene could lead to more durable and thermally-regulated constructions in the future and is not to be overlooked.
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Properties of Graphene:
