Structure carries in heavy loads.
Concrete mix ratio for roof slab.
Size of aggregates.
702 5 pounds of cement.
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.
Rounded off it s basically a 1.
1 1 5 3 m20 is concrete mix ratio used for roof slab.
Example calculation estimate the quantity of cement sand and stone aggregate required for 1 cubic meter of 1 2 4 concrete mix.
It means 1 part of cement 1 5 part of fine aggregate coarse sand and 3 parts of coarse aggregate.
1217 pounds of sand.
This ratio of concrete also gives very high strength of cement concrete and is recommended for following works.
Materials required are 7 nos.
The 1 2 3 concrete mix ratio is considered the classic mix ratio by many professional builders.
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1587 pounds of stone.
2 concrete mix ratio.
Concrete mix ratio for roof slab.
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.
As such it can productively be used in a wide variety of weight bearing projects.
That is because it is among the most versatile mix ratios regardless of what scale it is being used at.
The strength of this mix ratio is good for most concrete slabs footings steps and foundation walls.
The recommended value of these concrete mixes for various types of construction is presented in table below.
Recommended mixes for different concrete construction type of work concrete mix ratio max.
Of 50 kg bag of cement 0 42 m 3 of sand and 0 83 m 3 of stone aggregate.
The 1 2 3 ratio s make up is described right in its name.
2 26 parts stone 1 73 parts sand.
Concrete mix ratio for beams.