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One cubic foot of concrete weighs about 144.05 lbs, so one cubic meter of concrete equals 2307.46 kg/m^3 or 5087.08 lb/m^3. This can vary depending on strength, additives, and other factors. ASTM C138/C138M-01a is the standard test method for finding the density (unit weight) of concrete.
The cement density is used in the calculation of the total aggregate content and of the concrete density.Normal concrete has a density around 2400 kg/cubic meter or 4048 lb/cubic yard. There are many different kinds of concrete, many of which are much lighter. Cement is the liquid (or paste like) form, and tends to be much heavier than when it has cured into concrete. "Cement" is not concrete, but can be used to make concrete by mixing with sand, stone and water. The density of cement is about 3120kg/m3.
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For M20 grade concrete, the mix proportion is 1:1.5:3 (cement:sand:coarse aggregates). If we consider a volume of 1 cubic meter, approximately 320 kg of cement would be needed.
.050 meter cube
4000PSI, 12bags, .5cum3sand 1cu.m3 gravel
The mixture depends on the concrete strength, flow properties and other specifications required, quality of cement, aggregates and other chemical additives that will be used. Typically 1 cubic meter concrete should include about 310kg cement, 800kg sand, 900kg gravel and 220kg water.
7 cement bags per 1 cubic meter of concrete......
One cubic meter of concrete is equal to 1.308 cubic yards of concrete. If there are 5 1/2 bags of cement in 1 cubic yard of concrete, there would be 7.2 bags in 1 cubic meter of concrete. These are the 94 pound bags of portland cement or roughly 40kg bags so figure 8 bags total. Some will be left over
Mix: 320 kilograms cement, 600 kilograms sharp sand, 1200 kilograms gravel, and 176 liters water.
To properly answer this question, one would need to know the volume of a "bag", since "bag" isn't any standard of volume or weight. Typical Portland Cement has a density to 1505kg / cubic meter. In addition, one would also need to know the coarseness of the gravel, as the ability of the sand and cement to fill in the aggregate depends heavily on the average size of the gravel pieces.
Daft question really! Should be what is the density of cement. Does the question mean cement ( dry powder), wet concrete, set concrete or what?
300kg
15 milligrams
How much cement sand and stone do you need for 1 cubic meter of concre
I cant accuratly help you with the cement content but you need about 1 ton of sand and 1 ton of stone for every cubic meter of concrete. The cement content would depend on what you are using the concrete for. At 15 newtons of strength you would ( and this is just an educated guess) need about 95kg of OPC cement, 85kg of GGBS slag, 1.5lt of WRA (water reducing agent) and about 70lt of water to gain a 50mm slump per cubic meter. If I were you I would get it ready mixed. 70 Cube is a LOT of cocrete. Ready mixed 15 Newton concrete is about £75 inc vat per meter delivered. Regards Colin, a Tarmac concrete batcher.
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