How many 20 kg bags of concrete do i need | concrete
@HelloSirJiconcrete, How many 20kg bags of concrete do i need
General Purpose Concrete – 20kg is a premix of cement, sand and aggregate ideal for load bearing, grey concrete applications where a 30MPa strength is required
Ready mix concrete can be used for building or repairing foundation walls, fence post, sidewalks, curbs, steps, shed floor, pergolas, concrete path and ramps and for setting posts and others concrete structure like, footing, slab, beam and columns.
A bag of 20kg concrete yields 0.009m3 volume that equates as volume of 9 litres which is approximately equal to 0.32 cubic feet or 0.0117 cubic yards
A bag of 20kg concrete can can cover around 1.28 sq ft area for standard depth of 3 inch deep and it will required 110 bags of 20kg concrete to make 1 cubic metre.
How many 20kg bags of concrete do i need
1) Determine how thick you want the concrete, suppose thickness = 100mm, length = 5m and width = 4m
2) multiply the length and width of your slab to get square meter area 5m×4m = 20m2
3) Convert the thickness from mm to meter
Such as 100÷1000 = 0.1 meter
4) Multiply the thickness in meter by the square meters area to determine cubic meters of concrete you need such as 20m2 × 0.1m = 2m3
4) How many 20kg bags of concrete do i need is calculated by multiplying required concrete quantity (2m3) by No. of 20kg bag of concrete per m3 such as 2 ×110 = 220 bags
Thus, you will need 220 bags of 20kg concrete for 5m × 4m slab at 100mm thick.
Q 1) How many 20kg bags of concrete do i need
Ans. you will need 110 bags of 20kg concrete to make 1m3 of concrete and for 2m3 concrete 220 bags of 20kg concrete will be required.
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