1 sand part 2aggregate part.
Roof slab concrete ratio of concrete mixture.
Its compressive.
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Of 50 kg bag of cement 0 42 m 3 of sand and 0 83 m 3 of stone aggregate.
This ratio of cement concrete gives high strength of cement concrete and is recommended for following works.
Used as reinforced cement concrete rcc.
For general rcc work in buildings bed plates lintels rcc shelves pavement etc.
Concrete mix ratio for roof slab.
It means 1 part of cement 2 parts of fine aggregate coarse sand and 4 parts of coarse aggregate.
Mixing ratio is 1 1 5 3 1cement part.
M25 grade concrete ratio is 1 1 2 mixture of cement fine aggregates and course aggregate in which one part is cement one part is sand and two part is aggregate.
Its compressive strength is 20 mpa.
Used for construction of slabs beams columns etc.
1 1 5 3 m20 is concrete mix ratio used for roof slab.
There are two types of m25 concrete ratio concrete mixes nominal mix and design mix.
Materials required are 7 nos.
As we know that roof slab is rcc structure so we can use minimum grade of m20 grade and concrete mix ratio 1 1 5 3 for roof slab maximum grade of concrete m25 m30 and much higher are used as per design for roof slab.
The degree of preparation of the concrete is selected based on the m25 grade concrete mix design.
Standard grades of concrete.
The 1 2 3 ratio s make up is described right in its name.
Concrete mix ratio compressive strength is the most important property of hardened concrete.
Where cement concrete 1 2 4 is used.
The 1 2 3 concrete mix ratio is considered the classic mix ratio by many professional builders.
As such it can productively be used in a wide variety of weight bearing projects.
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.
The strength of this mix ratio is good for most concrete slabs footings steps and foundation walls.
Example calculation estimate the quantity of cement sand and stone aggregate required for 1 cubic meter of 1 2 4 concrete mix.