Question

Estimation of coarse aggregate proportion by total aggregate by volume

Answer 1

Let's take example of M-25
Which mix proportion is 1:1:2

First part show the cement is 1
Second part is for sand is 1
Third part of aggregate is 2

This is Volumatric batch.

Now we get concrete grade now we require quantity of all materials.

We want material for 1cubic meter
So we increase the volume 52% (it's nothing but the comes from dry volume to wet volume ratio:-1.54)

Because dry mix volume decrease when we add the water so we take more volume so increse the volume
1 C.M. to 1.52 C.M.(1+0.52)

Now for quantity make total of proportion

1+1+2 = 4 total volume if material.

For Cement

1 * (1.52 / 4 ) = 0.38 meter cube

For number of cement beg divide this volume 0.38 with one cement beg volume which is 0.035

So ANSWER is 10.85
So approximately 11 beg are used.

For sand

quantity is same as cement because proportion is same 1:1:2
1 * (1.52 / 4 ) = 0.38 meter cube

For Aggregate

2 * (1.52 / 4 ) = 0.76 meter cube

So you get the quantity of all materials for 1 meter cube.

I hope you will got right thumb's!