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petroleum typically has a density of 0.8 so 1/0.8 = 1.25 cubic metres
http://wiki.answers.com/Q/How_many_cubic_meters_of...
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Depends on what it's a cubic meter of. A cubic meter of hay will be much lighter than a cubic meter of sand.
http://wiki.answers.com/Q/How_many_metric_tonnes_a...
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1 cubic meter of concrete is made up of. 1,750kg ballast. 300kg cement = 12 bags 25kg. 150 litres water. or. 1,200kg chippings. 350kg cement =14 bags 25kg. 700kg sand. 150 lit water
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Loose dry sand is about 1.5 tonnes per cubic meter, so a tonne of sand would be about two thirds of a cubic meter.
http://wiki.answers.com/Q/How_many_cubic_meters_of...
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