For a right roof slab concreting we have to prepare proper concrete mix.
Rcc mixing ratio for roof.
To find out the exact amount it will take to construct an rcc roof slab let s take an example.
This article provides a brief view of steel bars in cement concrete work.
A concrete mixture ratio of 1 part cement 3 parts sand and 3 parts aggregate will produce a concrete mix of approximately 3000 psi.
These are actual concrete mix ratios for 3000 3500 4000 and 4500 psi concrete.
And know about roof slab steel calculation.
3 ratios of rcc are used in construction work.
3 in which one part is cement 1.
Various ratios of rcc.
Reinforced concrete requires very strong steel bars.
The way you measure the ratio could be in shovels buckets or wheel barrows.
Try and keep the mix manageable a moderately stiff and not more than the specified cone test.
The main point to bear in mind is keep the ratio between fine aggregate and coarse aggregate should be 1 2.
Usually about 4 to 5 slump test results would make the work ability acceptable.
This is most important part of the structure generally 1 2 4 and 1 1 5.
In case of single or two story house the ration of concrete mix will be 1 2 4.
5 part is sand and 3 part is aggregate rcc slab construction cost for 1800 square feet steel bar calculation in roof slab there is a two types of steel bar used main bar and cross bar.
Rcc denotes re in forced cement concrete in which cement sand and bajri are laid with the help of mild steel.
These concrete mix ratios for 3000 3500 4000 and 4500 psi concrete come from the ready mix concrete company i use to pour concrete floors slabs patios pool decks and stamped concrete.
And the concrete mix ratio is 1 2 4 then to find out the construction cost you will need to calculate.
This roofing is very versatile and provides great protection.
3 in which one part is cement 1.
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.
5 part is sand and 3 part is aggregate.
If the rcc roof slab size is 25x20 sq.