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.
Roof slab concrete ratio of concrete mixture.
M25 grade mixing ratio is 1 1 2 1cement part.
It means 1 part of cement 2 parts of fine aggregate coarse sand and 4 parts of coarse aggregate.
The degree of preparation of the concrete is selected based on the m25 grade concrete mix design.
Used as reinforced cement concrete rcc.
There are two types of m25 concrete ratio concrete mixes nominal mix and design mix.
That is because it is among the most versatile mix ratios regardless of what scale it is being used at.
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.
1 sand part 2aggregate part.
Example calculation estimate the quantity of cement sand and stone aggregate required for 1 cubic meter of 1 2 4 concrete mix.
Standard grades of concrete.
For general rcc work in buildings bed plates lintels rcc shelves pavement etc.
Its compressive strength is 20 mpa.
The 1 2 3 concrete mix ratio is considered the classic mix ratio by many professional builders.
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Concrete mix ratio for roof slab.
Where cement concrete 1 2 4 is used.
The 1 2 3 ratio s make up is described right in its name.
Its compressive.
Concrete mix ratio for beams.
As such it can productively be used in a wide variety of weight bearing projects.
Materials required are 7 nos.
Mixing ratio is 1 1 5 3 1cement part.
Concrete mix ratio compressive strength is the most important property of hardened concrete.
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.
1 1 5 3 m20 is concrete mix ratio used for roof slab.
Used for construction of slabs beams columns etc.