But whereas the air raid sirens' noise lasted for a minute or two, that of the cement mixer goes on for hour after hour, unceasingly.
Take a man harrowing sand on a building site filling up a cement mixer.
The first 3 vehicles were a road roller, muir hill dumper and a cement mixer.
Pneumatic drills, a compressor, a cement mixer, and something that sounds like a monstrous saw, have been lacerating our nerves.
I raised the question of the cement mixer.
One of my constituents fell into a cement mixer which had a faulty safety grille.
In recent years the cement mixer has been greatly improved in its capacity to produce more cement, but that has meant that it also makes a great deal more noise.
The machinery included a steam and pulley operated cement mixer and a steam powered planing machine used to shape timbers.
