2. Steel Construction Concrete Construction
Heat Prevention:200mm composite
wall's thermal resistance can be
3.2 ㎡·K/W, is 11 times brick wall’s
resistance.
Heat Prevention: concrete construction
is a massive heat sink which always
absorb the heat readily and it takes
about 5 to 6 hours to lose the attained
heat.
As per the prevention of heat the
electric charge used for cooling the
structure get reduced as per the survey
that about 60% of the electric charge
gets conserved due to this type of
construction with good insulating
properties with fine R values.
As this is a massive heat sink it requires
a lot of electric charges to make the
structure cool and without cooling
facilities the residents can’t even survive
at the time of hot weather. Mostly
bricks are used an exterior and interior
walls and a truth about bricks that it
has a negative R value.
Initial cost may be more but it will pay
back by means of energy bill and
comfort. Due to fast progress
investment will be only on
materials not on labors.
The labor cost will be increasing.so you
are going to invest 30% of the project
cost in labors not on materials.
3. Steel Construction Concrete Construction
Fire-proof :Fire-resistant time can be
1-4 hours based on different design. As
per the usage of the thickness of
cladding and the types of retardant
used in insulation.
Fire-proof : Above 95°C threshold
cement paste undergoes shrinkage
(contraction) due to dehydration and
aggregates expand due to temperature
rise which results in overall expansion
of concrete and reduction in its
strength.
Sound absorption–Different materials
with different density is the way to
reduce the sound. Open cell structure
allows for effective absorption of
airborne sound across a broad
frequency range. Reduction of
structure-borne and airborne sound
transmission:∝ 𝒘=0.005.
Sound transmission loss – high air flow
resistance offers beneficial sound
transmission loss properties
Sound Insulation : Concrete is not
considered as being a good sound
insulating material. In general, sound
absorptive properties of floors are often
ensured by a porous layer on the
surface: a carpet or carpeting provide
these properties. Moreover, if concrete
is used as a sound absorptive material,
no coating can be put on the surface
which could trigger some design
issues.
4. Steel Construction Concrete Construction
An insulated house is very comfortable
in both summer and in winter. In
summer it does not absorbs heat from
environment and in winter a light bulb
can heats the room and it does not
dissipates the heat outside.
In concrete house during summer you
feel like sitting in an oven till 10 p.m. In
summer it will be hot inside the house
and in winter it will be cold.
5. Steel Construction Concrete Construction
Even at high magnitude earthquake, the
damage would be only revealed on
cladding no structural damage or
collapse occurs due to light weight.
A high magnitude earthquake can even
collapse the whole structure due
to the main reason behind is poor
quality of workmanship and negligence.
The reason it resists earthquake is the
reduction in weight of the structure and
so the building can vibrate to its extent
and due to the higher elasticity index
,the steel comes to its original state after
some vibration. Even six storey building
under earthquake of magnitude 9.0.
The main reason for collapse is due to
the presence of honeycomb (un
vibrated Concrete) which is being
finished by sand and cement mortar
can create a major issue at the time of
ground motion.
6. Steel Construction Concrete Construction
Earthquake don’t kill people, buildings
do, but steel buildings won’t.
Most of the disasters happens only in
concrete structure with poor design and
inspection.
7. Steel Construction Concrete Construction
Due to light weight steel construction
requires only shallow foundation
with a very simple design
characteristics. A monolithic slab is the
best foundation for Light Gauge Steel
Frame building
Due to heavy weight concrete
construction requires a deep
foundation with tedious design
characteristics.
Future expansion is very easy and
simple. A better aesthetic view during
& after construction.
Future expansion is most tedious
and more costly. A very high
precision would be taken to give a good
aesthetic view.s
8. Steel Construction Concrete Construction
It takes about 1/3 of the construction
time when compared to the normal
construction technique. Sometimes if
concrete construction takes 18 – 24
months to finish the project steel makes
about 6 months to finish it.
It takes a normal and even long
construction time in the lag of
resources in the project.
The workmanship on steel construction
requires about 60% less laborers
involved in RCC construction. Light
Gauge Steel Frame building are printed
in a custom roll former control by a
computer program. Assembly can be
done at factory or on site, erecting is
done on site, reducing time and labor.
The workmanship on concrete
construction requires a lot because of
the heavy weight of the materials. This
will not be rapid until heavy lifting
accessories are installed at the work
site.
9. Steel Construction Concrete Construction
It’s Ecofriendly because during
manufacturing of steel it produces a
small amount of pollution but at the
time of installation at work site it does
not produce any pollution.
It’s not eco-friendly because during
manufacturing of cement it produces a
lot of pollution to the environment and
the production of bricks also produces
pollution by burning it and excavation
of river sand produces soil erosion and
some other natural calamities like
flood.
It can be described that steel can be
recycled even after 250 years of its
existence .then after recycling it can
also be used as a normal steel. So
recycling makes reduction in waste.
So site environment will be tidy.
During construction when cement
mixed with water it releases 𝒄𝒐 𝟐 in the
atmosphere and it also produces a lot of
wastes in day to day construction. Due
to wastes generation by day to day the
site environment will be untidy.