To find out the exact amount it will take to construct an rcc roof slab let s take an example.
Rcc mixing ratio for roof.
Enough water should be collected in water tanks.
However you can get a rough estimate with a simple rcc roof slab steel calculation formula.
This roofing is very versatile and provides great protection.
This article provides a brief view of steel bars in cement concrete work.
Rcc mixture has low elastic modulus because the heat of hydration generated is proportional to elastic modulus.
The main point to bear in mind is keep the ratio between fine aggregate and coarse aggregate should be 1 2.
Reinforced concrete requires very strong steel bars.
Poisson s ratio ranges from 0 15 to 0 20.
One of the best concrete mix ratios is 1 part cement 3 parts sand and 3 parts aggregate this will produce approximately a 3000 psi concrete mix.
Rcc mixture has low heat of hydration.
The minimum grade of concrete for plain cement concrete pcc is m15 the minimum grade of concrete for reinforced cement concrete rcc is m20 concrete grade and mix ratio table as per is 456 2000 the grades less than m20 should not be used in rcc works.
Like the normal concrete the ratio depends on aggregate type cement content age etc.
A solid roof on building is very important for everybody living in the house.
For a right roof slab concreting we have to prepare proper concrete mix.
If the rcc roof slab size is 25x20 sq.
It means 1 part of cement 1 5 part of fine aggregate coarse sand and 3 parts of coarse aggregate.
And the concrete mix ratio is 1 2 4 then to find out the construction cost you will need to calculate.
Where cement concrete 1 1 5 3 is used.
Elastic modulus and poisson s ratio.
Structure carries in heavy loads.
The strength of this mix ratio is good for most concrete slabs footings steps and foundation walls.