Using a density of 3150 kilgrams per cubic metre = 196.65 pounds per cubic foot.
42.7kg, or 94 pounds. BTW, a bag of portland cement contains one cubic foot of the product.
Type 1 Portland Cement weighs 196.56 lbs
Answer #1:9 cubic yards cement weight nearly 1260 lbs=============================Answer #2:Answer #1 is a very intriguing one. It says that 9 cubic yards (9 x 27 cubic feet)of cement weighs nearly 1,260 pounds. If so, then each cubic foot would weighnearly 5.2 pounds, which corresponds to nearly 8.3% of the density of water.So cement would float quite high in water. Mysteriously, it doesn't.I found one online conversion reference that says that1 cubic foot of Portland cement weighs 94.02 pounds.(94.02 pounds/cubic foot) x (9 cubic yards) x (27 cubic foot/cubic yard) = 22,847 pounds(rounded)Somehow, that sounds more like it.Also, if the question actually meant 'concrete, limestone with Portland cement"instead of 'cement', then the weight is nearly 60% greater than that.
A cubic foot of what? A cubic foot of feathers is much less than a cubic foot of lead. A cubic foot of water weighs 62.4 lbs per cubic foot. Portland cement weighs 94 lbs per cubic foot.
1 94-pound bag of cement is approximately equal to 1 cubic foot.
Cement weighs about 150 punds per cubic foot, and there are 1728 cubic inches in a cubic foot, so if the block is solid then it weighs 150x8x8x12/1728 = 67 pounds
Assuming you wish to used bagged 'pre-mixed' concrete, the industry standard is 1/2 cubic foot yield from a 60 pound bag. Keep in mind that the true weight will vary due to such things as sand/portland/aggregate ratios. But for a simple answer, you will be close with 3240 pounds. 60 pounds per 1/2 cubic foot, = 120 pounds for each cubic foot. 27 cubic ft. per yard 120 X 27 = 3240
There are 2/3 cubic foot in a 80 pound bag of cement.
62.4 pounds per cubic foot