Rcc Roof Concrete Ratio

3 rcc roof slab in the construction industry when they use the word concrete they are talking about reinforced cement concrete also known as rcc.

Rcc roof concrete ratio.

A general rule of thumb is if the water is palatable then it is suitable for mixing concrete. Labor guideline for steel bars in rcc. It can be measured easily on standard sized cube 15 cm and is often taken as an index of the overall quality of concrete. Like the normal concrete the ratio depends on aggregate type cement content age etc.

The ratio means for every 130 kg concrete 100 kg of steel is needed. 1 1 5 3 1 2 4 1 3 6 1 4 8 1 5 10. For maximum size of coarse aggregates as 20mm and over sand should be two thirds as much as coarse aggregates. The lower the w c ratio the higher the concrete strength.

All materials used for a design including the water quality should be to a high standard. Elastic modulus and poisson s ratio. 100 kg of steel strengthen the structure in rcc. Concrete mix ratio compressive strength is the most important property of hardened concrete.

Failing this ratio of steel to concrete would cause weakening the structure and fatal cracks to it. Rcc mixture has low elastic modulus because the heat of hydration generated is proportional to elastic modulus. It means 1 part of cement 1 5 part of fine aggregate coarse sand and 3 parts of coarse aggregate. This ratio of concrete also gives very high strength of cement concrete and is recommended for following works.

Mortar mix ratios cement sand gravel. When both fine and coarse aggregates are poorly graded the following general rules regarding suitable proportioning of these will be found helpful. The reinforced concrete features combined the strength of cement and steel bars which are the basic components of a modern structural design. Where cement concrete 1 1 5 3 is used.

Ratio of steel required to cement concrete in civil engineering the thumb rule for steel to concrete ratio is 100 130. Structure carries in heavy loads. Rcc mixture has low heat of hydration. Poisson s ratio ranges from 0 15 to 0 20.