A curved roof and one wall that is 24 meters of seamless concrete are two characteristics of Carbonhaus |
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World's First Carbon-Fiber Reinforced Concrete
By: Haseeb Jamal
A two-story
building locally named Carbonhaus on the campus of Technical University in
Dresden, Germany is under construction which will be the first building in the
world built entirely on Carbon Reinforced Concrete.
The building has a
covered area of 2200 Square feet and will be completed with a budget of 5
Million Euros (US$5.63 million).
The building
consists of two major portions: a precast “box”; and the “twist,” a
double-curved roof that is made up of the lighter-weight and bendable reinforced concrete.
This university
building will house a classroom, lab, presentation spaces, and a small kitchen.
The biggest
attraction as well as the engineering marvel of this will be its curved roof as
well as 24-meter length of seamless concrete.
The design
architect of Carbonhaus is Gunter Henn, chairman of Munich-based
architecture firm HENN.
The project is
engineered by Architeckten Ingenieure Batzen (AIB), whereas Assmann Advice +
Plan is providing structural planning services.
Manfred Curbach,
director of the Institute of Concrete Construction at TU Dresden, where he is a
professor, said "When we started publishing the first results on carbon
reinforced concrete at that time, we were smiled at. It is nonsense. The topic
will be off the table in three years".
That was in 1998.
Now 22 years later, despite the difficult current situation, the world's first
building made entirely of carbon reinforced concrete is being built on the
campus of the TU Dresden.
"It is a
quantum leap in the history of civil engineering" he added.
The reinforced concrete is named as Carbon Concrete Composite and named as C3 or Cube..
What is Carbon-Fiber Reinforced Concrete?
Carbon-fiber
reinforced concrete is a composite product that consists of carbon fiber —
which provides strength and stiffness and polymers — which hold the fibers
together in a kind of matrix. The micro or macrofibers can be either synthetic
or natural.
The consensus
within the industry is that this kind of reinforcement can significantly
increase the life of the structure in which the composite is used.
The carbon fiber
being deployed for CUBE is produced from petroleum-based polyacrylonitrile, or
PAN.
It can also be made
from lignin, an organic polymer derived from waste material in paper production.
TU Munich has been
exploring the production of carbon fiber from algae oil.
Importance & Applications of Carbon-Fiber Reinforced
Concrete
It offers more
durability and is better for the environment than the standard mix of building
materials.
The carbon-reinforced
material provides more resistance to cracking and erosion than conventional
steel and concrete building components.
The use of the new
alternative, however, still faces some regulatory and economic hurdles.
As at least half of
the concrete in a typical building component is used to protect the
steel reinforcement from corrosion.
Hence, as much as
60% of a concrete structure is dead weight of the structure which the concrete
and reinforcement has to support, increasing the cost of the structure.
Experts say that
because steel and concrete “work in tandem, but not together,” the
resulting component continues to be prone to cracking and erosion, to the point
where buildings and infrastructure don’t last anywhere near as long as they
should.
“They are designed
for strength, but not durability, and no one is accountable after 10 years of
service.”
On the other hand,
the weight of carbon reinforcement materials is about one-quarter that of
steel, with the same tensile strength.
The composite
component is more durable and saves up to 70% in greenhouse gas emissions.
Though it could
take 20 years to get mainstream and would require regulations but once in
effect it would help accelerate the decline of CO2.
Carbon concrete
can, however, not only be used in the strengthening or refurbishment of bridges or structures.
It paves the way
for the construction industry to develop an entirely new way of building and
living.
Carbon concrete
enables the interior walls of buildings to consist of panels only a few
centimeters thick, thus providing new design possibilities that are
characterized by slenderness, lightness and esthetic principles.
Potential
applications thus extend across the entire spectrum of construction engineering
– whether refurbishment or new construction.
Haseeb
Jamal.
I am a Civil Engineer, graduated from University
of Engineering and Technology, Peshawar, Pakistan in 2010. I also
have a PG-Diploma in Disaster Management and
MS in Urban
Infrastructure Engineering (In Progress). My expertise include civil
related softwares like AutoCAD,
SAP2000, MS Project, Primavera, MS Office and GIS. My technical skills include
project management, monitoring and evaluation, structural assessment, disaster
risk management, Quantity survey, land survey, material testing, site
management and technical writing. I am trained in writing project progress
reports as well as proposals and concept papers. I have also received advanced
training on surveying, proposal writing, Monitoring and Evaluation of projects
as well as organizations.
I have worked as Project
Engineer at National Research and Development Foundation, Peshawar and
CENCON Associates. I also worked with Spectra Engineering Solutions as Senior
Civil Engineer in monitoring of World Bank and UNDP funded projects all
over Khyber Pakhtunkhwa and FATA. Currently, I am working as Deputy
Manager Development at NayaTel, Peshawar.
https://www.aboutcivil.org/carbon-reinforced-concrete-building-cube
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