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Research Outline
Prepared for Kristin B. | Delivered February 10, 2020
Disruptive Materials in Construction
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Goals
To identify 3-4 disruptive technologies/products in the construction market, with a focus on the materials used.
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Early Findings
3D Printing
3D printing has been more and more attractive in the construction industry due to its
efficiency and fast yields.
3D printing has already been used for the printing of parts and models but also for
modular panels and even entire buildings.
It has been reported that 3D printing a small house takes
only several days
.
For architects, 3D printing makes the creation and designing process
much faster and efficient.
It is also extremely cost-effective, with experts reporting that using a 3D printing saves up to
75%
of the cost associated with designing a new building.
Self-Healing Concrete
There has been a big emergence of cost-effective
new forms of concrete
in recent years, with one of the most prominent examples being self-healing concrete.
The self-healing concrete mix "
uses bacteria
as a healing agent to close concrete cracks". The bacteria itself is enclosed in a sodium silicate, which ruptures when a crack in the concrete appears, releasing a "
gel-like healing agent
that hardens to fill the void."
T
h
e
durability of the concrete
is greatly improved by using that method, which gives a big advantage for any new construction project as the maintenance cost decreases as well.
Moreover, the mix is very cost-effective compared to regular concrete and other energy-efficient concrete options on the market.
Since architects have been worried about the quality of the materials that construction companies used to complete their projects, introducing such a
cost-effective and durable
product will boost the quality of the construction and help better implement the architects' vision.
However, they are also concerned that while new, durable and cost-effective options are being produced there are still few options that use sustainable materials to produce the cement, which accounts for over
8%
of the global CO2 emissions.
Energy Efficient Bricks
Since architects are extremely concerned about the carbon footprint of their projects. In fact, over
40%
of the greenhouse emissions in the UK alone are caused by the construction industry.
As such, they have been trying to find ways to create construction materials that are
sustainable and eco-friendly.
The construction company Thames Water has recently "
found an inventive way
to use sewage to create the material needed for heavy-duty bricks."
The company mixes the ash of the burnt dried waste with "
carbon dioxide, water
, sand and a small quantity of cement to form an aggregate for individual breeze blocks — each weighing 17kg."
Thames Water is expected to be able to produce
18,000 tonnes
of aggregate every year, which can be used to make about 2.3 million construction bricks.
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