2007-12-04 03:11:38 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
According to the Portland Cement Association:
"Concrete: Concrete is a mixture of cement, coarse and fine aggregates, water, and sometimes supplementary cementing materials and/or chemical admixtures. A normal weight concrete weighs approximately 2400 kg/m3 (145 lbs/ft3). The unit weight (density) of concrete varies, depending on the amount and density of the aggregate, the amount of air that is entrapped or purposely entrained, and the water and cement contents, which in turn are influenced by the maximum size of the aggregate."
2007-12-04 04:04:08 · answer #1 · answered by Patrick 5 · 0⤊ 0⤋
Weight Of Concrete
2016-11-01 08:54:51 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Concrete with the correct proportions of sand, gravel and cement plus water weighs 150 lbs per cu feet.
2007-12-04 12:49:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Depending on the mix, a ballpark average is around 2400 kg per cubic metre. This approximates to 150 lb/cu ft.
2007-12-04 03:26:35 · answer #4 · answered by Michael B 6 · 2⤊ 0⤋
150 pounds per cu.ft
2007-12-04 03:22:49 · answer #5 · answered by felixcamaya 1 · 2⤊ 0⤋
iT DEPENDS UPON:
Whether it is ordinary or reinforced
Quality & variety of sand
How much steel rod is used
what is the proportion of sand, cement, & granite
2007-12-04 03:20:31 · answer #6 · answered by Joymash 6 · 0⤊ 2⤋