Mar 25, 2012· According to some figures I have typical iron ore mine overburden will go between tonnes/loose cubic metre ( after blasting), let's for the sake of argument take the middle ground of T/m3. Your 740's are rated as metric tonnes maximum payload. / gives cubic metres of loose material.
Jun 12, 2005· Solid uncrushed basalt (= bluestone) weighs around 3 tonnes per cubic metre. The weight of gravel or aggregate depends largely on the shape of the particles and therefore the proportion of empty space. I would estimate that coarse gravel would be between 2 and tonnes per cubic metre.