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Reinforced cement concrete


1    Reinforced cement concrete :-  Reinforced cement concrete (R.C.C) is the combination of ordinary concrete with the reinforcement to increase its compressive and tensile strength to a great extent.
Properties of R.C.C.:-
a)     It should be capable of resisting expected tensile, compressive, bending and shear forces.
b)    It should not show excessive deflection and spoil serviceability requirement.
c)    There should be proper cover to the reinforcement, so that the corrossion is prevented.
d)     The hair cracks developed should be within the permissible limit.
e)     It is a good fire resistant material.
f)     When it is fresh, it can be moulded to any desired shape and size.
g)    Durability is very good.
h)   R.C.C. structure can be designed to take any load

Uses of R.C.C:-.
It is a widely used building material. Some of its important uses are listed below:
1. R.C.C. is used as a structural element, the common structural elements in a building where
R.C.C. is used are:
(a) Footings (b) Columns (c) Beams and lintels (d) Chejjas, roofs and slabs. (e) Stairs.
2. R.C.C. is used for the construction of storage structures like
(a) Water tanks (b) Dams (c) Bins (d) Silos and bunkers.
3. It is used for the construction of big structures like
(a) Bridges (b) Retaining walls (c) Docks and harbours (d) Under water structures.
4. It is used for pre-casting
(a) Railway sleepers (b) Electric poles
5. R.C.C. is used for constructing tall structures like
(a) Multistorey buildings (b) Chimneys (c) Towers.
6. It is used for paving
(a) Roads (b) Airports.
7. R.C.C. is used in building atomic plants to prevent danger of radiation. For this purpose R.C.C. walls built are 1.5 m to 2.0 m thick.

Advantage of R.C.C :-
a)     Reinforced concrete has a high compressive strength.
b)     It is economical in ultimate cost.
c)    It can be produced easily at the construction site.
d)    Reinforced concrete has monolithic characters which gives much rigidity to the structure.
e)    It is durable, fire resistant and almost impermeable to moisture.
f)     The materials used in reinforced concrete are easily obtainable.
g)    Maintenance cost of reinforced concrete structure is almost ignorable.
h)   Due to the flexibility and fluidity nature, reinforced concrete can be moulded into any desired shape.
i)     It is most useful and economical material in constructions such as footings, piers, damp etc.

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