Concrete Mix Ratio For Roof Slab In India

The main point to bear in mind is keep the ratio between fine aggregate and coarse aggregate should be 1 2.

Concrete mix ratio for roof slab in india. The cost of concrete is analysed by type of mix you have to use. Concrete is an all time material for roofing. 25 litres of water for one bag of cement. Minimize the effects of earth quake.

Their is lots of mix mix refer to the ratio of cement sand and aggregate. Materials required are 7 nos. In case of single or two story house the ration of concrete mix will be 1 2 4. Example calculation estimate the quantity of cement sand and stone aggregate required for 1 cubic meter of 1 2 4 concrete mix.

Of 50 kg bag of cement 0 42 m 3 of sand and 0 83 m 3 of stone aggregate. I m going to show you the actual batch plant ticket they give me when the concrete trucks show up on the job and we pour the concrete. As per indian standard code their are lots of predefined mix like m20 m25 etc. Structure carries in heavy loads important rcc structure such as columns beams slabs cantilever chhajja porch and balcony etc.

In m20 mix concrete m is stand for mix and numerical figure 20 is stand for characteristic of compressive strength 20n mm2 after mixing and casting of roof slab quantity of material in slab formation it calculated by m20 mix in which ratio of sand cement and aggregate is 1. Simple flat roofs to sloped roofs concrete roof tiles offered various styles and colors to meet the architectural needs. 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. An ideal water cement ratio for houses and other normal work with m20 concrete should never exceed 0 50 i e.

For a right roof slab concreting we have to prepare proper concrete mix. 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. This ratio of concrete also gives very high strength of cement concrete and is recommended for following works. Generally for slab we use m20 grade of concrete.

The strength of this mix ratio is good for most concrete slabs footings steps and foundation walls.