Minimix Concrete A local company supplying local needs from major construction projects to domestic patios A local company supplying local needs from major construction projects to domestic patios A local company supplying local needs from major construction projects to domestic patios
Ready-Mixed Concrete
  1. Identification
    Readymixed Concrete.
  2. Preparation
    Application. Concrete is designed to allow the customer to cast the material into the required shape prior to hardening.
  3. Composition
    A mixture of natural aggregate, Portland cement and water. Other ingredients may include, pulverised fuel ash (PFA) and Ground granulated blast furnace slag (GGBS). Admixtures may be added to improve the product handling characteristics or the ingredients of the hardened concrete.
  4. Identification of Hazards.
    Contact with eyes -May cause irritation and inflammation. In sever cases, alkali burns. Contact with skin may cause irritation, or in severe cases alkali burns. The combination of wetness, alkalinity and abrasiveness of the mixture may cause irritant contact dermatitis or ulceration, Individuals sensitive to chromium compounds present in trace amounts in cement may experience Allergic contact dermatitis.
    Inhalation: No hazard as supplied.
    Ingestion: In most cases of ingestion, the immediate problem is the potential blockage of the airways and gullet. Ingestion could cause severe irritation due to alkaline burn to the lining of the throat and gut.
  5. First Aid measures.
    Skin -Contaminated skin should be washed with clean water as soon as possible. Particular attention should be paid to any wounds which should be covered with a dressing.
    Ingestion -Do not induce vomiting. Specialised medical attention is required immediately.
  6. Fire -The product is not flammable.
  7. Accidental Release Measures
    Spillages will solidify in approximately four hours. Persons cleaning up spillages must protect against skin and eye contact.
    Environmental issues: Prevent material from entering drains, sewers and water courses
  8. Handling
    Wet Handling -When handling wet material protective equipment is required to prevent skin contact. Ensure clothing is worn with sleeves over gloves, trouser legs over boots to avoid concrete being trapped. Eye protection should be worn if splashes to eyes are likely.
  9. Personal Protection/Exposure Controls
    Eyes -Wet materials: eye protection should be suitable for protection against either impact or chemical splash.
    Skin -Impervious protective clothing should be used to avoid skin contact.
    Inhalation -When material is wet protective equipment is not required.
    Industrial Hygiene.
    Personal hygiene is important. Washing facilities should be provided. Cleaning and storing facilities for personal protective equipment and changing facilities should also be provided.
  10. Physical and Chemical Properties
    Appearance- Grey semi-solid material pH: Abrasive alkaline (pH typically 10 -14) Density Up to 2500 kg/m3.
  11. Stability and Reactivity
    Chemically stable and un-reactive.
  12. Toxicological Information
    Skin Ulceration
    Cement burns can be very serious and can occur if freshly mixed concrete or cement gets trapped against the skin by falling inside boots or gloves. They 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. In the worst cases, serious inflammation and secondary infections can occur. Persons can become allergically sensitised to wet concrete. This is a permanent condition and means that contact with even minute amounts will produce dermatitis which can affect the whole of the body not just where there has been contact. A person so sensitised normally has to give up work with wet cement and concrete.
  13. Ecological Information
    No adverse ecological behaviour or effects.
  14. Disposal considerations
    Waste Material, place in sacks, allow to harden and dispose as inert material under current requirements and regulations.
  15. Transport Information
    This product is not classified as hazardous for transport.
  16. Regulatory Information
    Risk Phrases
    R34 Avoid contact with skin and eyes
    S36/37/39. Wear suitable protective clothing gloves and eye/face protection
  17. Other information
    Ready mixed concrete in its wet state is a substance hazardous to health and as such the employer of persons who may be exposed to it at work must carry out an assessment under the Control of Substances Hazardous to Health Regulations 1994. Possession of this health and safety data sheet does not constitute an assessment. The use of Personal Protection Equipment is subject to the Personal Protection Equipment at Work regulations 1992. All new Personal Protective Equipment must carry the CE Mark of Conformity with European Standards. Where exposure to wet cement is such that there is a reasonable likelihood of dermatitis, then health surveillance for this condition will be required under the COSHH Regulations.

Useful References

The following publications are all available
for HSE Books PO Box 1999, Sudbury,
Suffolk CO10 6PS.
Tel 0178781165
Fax 0178 731885

General COSHH Approved Code of
Practice L5

Booklet L.25 Personal Protective
Equipment at Work. Guidance on
Regulations.

Leaflet MSB.6 Save your Skin Dermatitis.

Construction Industry Advisory Sheet No.
26 Cement.

Guidance Note MS24 Health Surveillance
of Occupational Skin Disease.
© 2006 Minimix Concrete
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