It should be 50kg/bag + 1% packing.
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Well, isn't that a happy little question! Typically, a bag of cement can fill about 10 to 12 standard-sized shovels, depending on the size of the shovel and the amount of cement in the bag. Just remember, it's not about the number of shovels, but how you use them to create something beautiful!
It depends on the weight of the bag. To calculate the volume of any bag we need to know the density. In freshly packed bags the standard density is 94 lbs/ft3 (1505 kg/m3). Example: to know the volume of a 50kg cement bag we divide the bag weight by the density, i.e.: 50 kg ÷ 1505 kg/m3 = 0.0332 m3 In practise, sand, cement and gravel are sold by weight, yet they must be mixed by volume. the black rubber buckets used in the building trade hold one 25kg bag of cement. a standard builders wheelbarrows volume is 70Lts so holds 4 of these buckets. The standard shovel here in Ireland is the long handled dovetail and 4 heaped shovels fills a bucket as near as need be.
1 94-pound bag of cement is approximately equal to 1 cubic foot.
The acceptable standard is 4:1 (That is 4 wheelbarrows of sand to TWO bags cement) as the volume of a wheelbarrow is roughly double that of a 50kg bag of cement. Lots of builders get "confused" by this.
26 bags (40kgs cement bag)