[header] How to clean a cement mixer [title] Remove the drum from the mixer. [step] This is usually done by turning the drum in the opposite direction to that of its normal rotation. [title] Place the drum on its side and put some firewood and paper into the drum and set alight. 
[step] The drum needs to be on it's side so it can draw in air. If the drum is upright, it will not and the fire will go out.