CEMENT SAFETY HAZARDS & CONTROLS
Cement based products, like concrete or mortar, can cause
serious skin problems such as dermatitis and burns.
Health Effects
Cement can cause ill-health mainly
by:-
Skin contact: contact with wet cement can cause both burns
and dermatitis:
• Cement burns: if freshly mixed
concrete or mortar gets trapped against the skin, e.g. by falling inside your boots or gloves, very
serious skin burns or ulcers can result which can take several months to heal
and may need skin grafting;
• Dermatitis: skin affected with
dermatitis feels itchy and sore and looks red, scaly and cracked. Two sorts of dermatitis can occur:
Irritant dermatitis
• results from direct damage to the
skin caused by the combination of wetness, chemical corrosiveness and
abrasiveness of cement in concrete and mortar;
Allergic dermatitis
• Results when you become sensitised
to chromium salts present in the raw materials used to make cement. Sensitisation to additives such as pigments,
epoxy resins and hardeners can also occur.
Eye contact: contact with cement
powder or wet cement can cause irritation and inflammation.
Inhalation of dust: high levels of dust can be produced when cement is handled, for example when emptying bags of cement or during their disposal. In the short term, exposure to high levels of cement dust irritates the nose and throat and causes difficulty with breathing. There is uncertainty about the long term effects of breathing in cement dust; chronic chest trouble is possible.
Abrading hardened concrete e.g. in
scrabbling or concrete cutting, can give rise to large amounts of inhalable
dust which could contain high levels of silica, depending on the aggregate that
has been used. By breathing in silica
dust you are at an increased risk of developing chest complaints.
Work in a way which minimises the
amount of dust produced. So, open bags
of cement with care mix carefully etc.
Handle dry material in a well-ventilated area.
Controlling Exposure
Avoiding exposure to cement powder by
using pre-mixed concrete / mortar
Using work methods that increases the distance between the worker and the substance such as longer handled tools
Employee must wear clothing to protect your skin from cement and cement mixtures, e.g.:
Personal Protection
gloves
overalls with long sleeves and
full-length trousers
waterproof boots
Hygiene
Personal hygiene is important. Adequate welfare facilities are available on site and employee should wash hands and face at the end of a job and before eating, drinking or smoking, and wash hands before using the toilet.
First Aid
Ensure eyewash stations are available at work locations. Contaminated skin should be washed
with cold running water as soon as possible.
Particular attention should be paid to any wound which should be covered
with a suitable dressing. Eye contamination
should be washed with cold tap water for at least 10 minutes before you should be
taken to hospital.
No comments:
Post a Comment