how to calculate quantities of sand , cement & aggregate in
1m3 - M20 , 1m2 of 6mm/12mm/20mm plaster , 1m3 20cm/ 1m2 of
10cm brick wall, paint quantity for 1m2 snowcem and lime
painting?
Re: how to calculate quantities of sand , cement & aggregate in
1m3 - M20 , 1m2 of 6mm/12mm/20mm plaster , 1m3 20cm/ 1m2 of
10cm brick wall, paint quantity for 1m2 snowcem and lime
painting?
1. Grade of concrete M20 so ratio is 1:11/2:3
let volume of concrete - 1cum
total ratio- 1+1.5+3 = 5.5
cement = 1x15.4/5.5 = 2.8 cum so cement is =2.8/.347=8 bags
sand-2.8*1.5= 4.2cum
aggregate- 2.8*3= 8.4 cum
2. plaster = suppose 12mm palster
consider 1 sqm ratio is 1:6
volume of concrete= .012x1= .012cum ( per 1sqm)
incrase 20% for joint, filling and wastage=.012*20%=.0144
calculate 1/3rd of mortar when
dry= .0144*1/3+.0144= .0192cum
summation of ratio=7 so cement= .0192/7=.00274cum
= .0789bags
sand= .00274*6=.0164cum
this formula applied for 6mm and 20mm also.
plaster area= paint area
Re: how to calculate quantities of sand , cement & aggregate in
1m3 - M20 , 1m2 of 6mm/12mm/20mm plaster , 1m3 20cm/ 1m2 of
10cm brick wall, paint quantity for 1m2 snowcem and lime
painting?
1. Grade of concrete M20 so ratio is 1:11/2:3
let volume of concrete - 1cum
total ratio- 1+1.5+3 = 5.5
cement = 1x1.54/5.5 = 0.28 cum so cement is =0.28x
1440Kg/cum = 403.2 Kg = 8.064 bags
sand-0.28*1.5= 0.42cum
aggregate- 2.8*3= 0.84 cum
2. plaster = suppose 12mm palster
consider 1 sqm ratio is 1:6
volume of concrete= .012x1= .012cum ( per 1sqm)
incrase 20% for joint, filling and wastage=.012*20%=.0144
calculate 1/3rd of mortar when
dry= .0144*1/3+.0144= .0192cum
summation of ratio = 7
cement= .0192/7=.00274cum
= .0789bags
sand= .00274*6=.0164cum
this formula applied for 6mm and 20mm also.
plaster area= paint area
What is the dimension of Slump cone which is used to measure
the Slump value of concrete? Slump value for Pile concrete?
Slab concrete? Column concrete?
we are roofing contractors,we are filling a bill in work
contract 4.12% method, we collecting 4.12% from our customer
but every month we have been paying the vat at 2% from our
pocket on the total value of bill. our auditor told me the
above method do not collect 2% from the customer side is it
true?