concrete pole specification | how to calculate cement, sand and aggregate quantity in concrete

Today I will tell, how PCC pole concreting is done? Before knowing about our topic, let's take a little knowledge about PCC Polls.full form of pcc pole is Plain  Cement Concrete pole.There are various types of PCC Pole like 8 mtr 8.5 mtr ,9 mtr .but Now I will discuss about only 8.5 mtr pcc pole.

As per Guaranteed Technical Perticulars(GTP)

• Total Length-8.5 mtr
• Pit depth-1.5 mtr
• Working load applied 300 mm from top-180 kg
• Weight of the pole-415 Kg.
• Top dimension-90mmx145 mm
• Bottom dimensions-90mm x 300 mm

we have to maintain pit length is 1.5 mtr and pole should be inside pit is L/6 where L is length of the pole.

Explained:

L=8.5 mtr

Pit depth=L/6+0.075(Base plate)

Pit diameter =20 inch(0.508 mtr)

Let's go to our topic now.

How to calculate cement, sand and aggregate quantities for ratio 1:2:4

Pit Size

• For one cmt cement required -6 bag
• Our pit volume (dia-0.508 mtr where r-0.254, depth-1.5 mtr)
• Volume -pie*r2*h

               =3.14*0.254*0.254*1.5=0.304cmt

• For one cmt, bag of cement required -6 bag
• and our pit volume  is 0.304cmt
• Pole and base plate  in volume  inside pit is 0.3x0.09x1.5=0.04

Total volume=0.304-0.04=0.264 cmt

So we get 0.264 cmt.If  for one cmt,bag of cement require is 6 bag then for 0.264 cmt 

as below.

Cement =0.264x6=1.5 bag cement.

Sand=3 bag (bag is Cement bag size)

Aggregate=6 bag(bag is Cement bag Size)

Conclusion:

I shared my experience through the above blog. If you liked it, please write your remarks in the comment box. And if you have any doubt then you can ask through comment box.