Cement mixers use a rotating drum to combine cement and other aggregate materials to form concrete. Since cement hardens quickly, the drum on a cement mixer must be in constant rotation when in operation. Severe injuries and even death can occur if machines are not maintained and operated properly. To avoid injury, operators should receive adequate training and follow proper safety procedures.
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Crush injuries can occur if jewellery or any part of the body gets caught on truck parts or equipment near rotating drums. Parts of the body can also get caught between rotating drums and stationary parts of the mixer. Safety shoes should be worn to prevent operators from slipping and falling into machinery. If cement mixers are not operated on a level, sturdy surface, machines can tip or roll over causing crush injuries or death.
Cement dust or aggregate particles can cause eye irritation. Severe eye injury can occur if chemicals are splashed or aggregate particles fly into the eyes.
Exposure to cement dust can result in skin irritation and skin thickening. Wet concrete can also cause chemical burns.
In addition to lung irritation from cement inhalation, prolonged exposure to silica can cause serious conditions, such as silicosis or lung cancer.
Explosion can occur if gas-powered mixers are not turned off when fuelling or refuelling. Indoor operation without proper ventilation can cause a build-up of carbon monoxide.
Electric shock can occur if the mixer is not properly maintained and grounded. Improper shutdown procedures can also lead to electric shock.
Musculoskeletal injuries, such as strains and sprains, may be caused by repetitive motions and not standing or lifting properly.
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