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Bamboo for
Reinforced Concrete Construction
by Kathir
Civil Snapshot
The steel as a reinforcing material
is a demand that is increasing day by day in most of the developing countries.
There are situations when the
production is not found enough to face the demand for steel.
Hence it is essential to have an
alternative that is worth compared to steel.
Bamboo is found in abundance.
They are resilient and hence these
can face the demand as a reinforcing material and become an ideal replacement
for steel.
The tensile strength property which
is the main requirement of a reinforcing material is seen appreciable for
bamboo, compared with other materials including steel.
The structure of bamboo from its
origin gives this property.
The hollow tubular structure has high
resistance against wind forces when it is in natural habitat. Working on the
weak points of bamboo and bringing up an innovation of bamboo as a structural
steel replacement, would be a great alternative.
Advantages of Bamboo in
Reinforcement:
1.
Bamboo is extremely strong natural fiber.
2.
It has high tensile strength.
3.
Due to its hollow structure, it is highly flexible.
4.
Lightweight compared to steel.
5.
Low cost and environment-friendly.
6.
It has great shock absorbing capacity.
Disadvantages of Bamboo in
Reinforcement:
The biggest part which discourages
the use of bamboo as reinforcement is its disadvantages.
1.
Less durable than steel, cannot be used in permanent structure.
2.
Shrinking problems.
3.
More prone to environmental degradation and insect attack.
4.
Cannot be used in cold climate.
5.
It does not have longer life compared to steel.
6.
Low modulus of elasticity, poor adherence to concrete mix.
7.
Due to lower modulus of elasticity, it can crack and deflect
more than steel reinforcement.
Selection of Bamboo for Reinforced
Concrete Construction
Selection of bamboo for reinforcement
can be done based on these factors
Color and Age – Employ
bamboo having an evident brown color. This shows the age of bamboo to be at
least 3 years.
Diameter – Use the one
with long large culms.
Harvesting – Try to
avoid those bamboos that are cut either during spring or summer seasons.
Species – Among 1500
species of bamboo, the best one must be checked, tested to satisfy the
requirement as a reinforcing material.
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