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HeidelbergCement in the United Kingdom
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Health and safety

The Control of Substances Hazardous to Health Regulations (COSHH) requirements of the Health and Safety at Work Act, The Consumer Protection Act and The Chemicals Hazard Information and Packaging for Supply) Regulations, require us to provide relevant information regarding our products in respect of their properties, correct use, storage/handling and disposal without risk to health.

Autoclaved aerated concrete building blocks.

Pulverised fuel ash, sand, cement, lime, anhydrite, aluminium slurry and water. 

Hazard identification
When used correctly for their intended purpose, and provided normal good standards of building practice are followed, no significant hazards exist.

First aid measures
There are no specific requirements when using aerated concrete blocks other than the appropriate treatment of minor injuries.

  • Damage to skin – wash with soap and water and apply sterile dressing.
  • Dust in mouth or eyes – irrigate liberally with water.
  • Accidents where products strike or crush parts of the body should be referred to a suitably qualified medical practitioner. In all cases of doubt, or where symptoms persist, medical advice should be obtained. 
Fire fighting measures
Products will not support combustion.

Accidental release measures
Not applicable.

Handling and storage
When blocks are banded or wrapped, care should be taken when releasing or removing this packaging as there is possibility of loose blocks falling from the pack. Packs should not be lifted by the packaging alone, but by a suitable grab capable of carrying the weight of the pack, or by correctly positioned handling forks.

Block packs should be stacked on dry, level ground no more than 3 packs high, to reduce the risk of loose blocks falling. Where blocks are handled manually, personal injury due to strains or ruptures should be avoided if the requirements of The Manual Handling Operations Regulations are implemented.

Exposure controls/personal protection
When cutting blocks with a saw, it is advisable to wear a dust mask to current H.S.E. or European approved standard to protect against the inhalation of dust, which may contain respirable crystalline silica. Protective goggles, spectacles or face shields to BS EN 166 must be worn when cutting plastic bands under tension.

Suitable gloves should be worn to prevent skin abrasion, which could be caused by the rough edges of the blocks. Suitable head and foot protection should be worn where there exists the risk of products falling from a height.
Physical and chemical properties
Aerated concrete blocks are inert and solid when supplied. The main constituents are pulverised fuel ash, which contains amorphous silica and various metal oxides, and cement, which is predominantly made up of calcium silicate and calcium aluminate.

Stability and reactivity
Not applicable.

Toxicological information
Not applicable.

Ecological information
Not applicable.

Disposal considerations
Redundant plastic strapping and waste polythene can be recycled where this facility exists, or disposed of by a registered carrier at an approved landfill site. Waste polythene can be incinerated under approved conditions in compliance with the Environmental Protection Act. Advice on the preferred method should be obtained from the local authority waste disposal officer.

Transport information
No special precautions required.

Regulatory information
Classified as non-hazardous for conveyance and supply.

Other information
In accordance with the Management of Health and Safety at Work Regulations, employers must carry out a risk assessment to ensure the health and safety of their employees and non-employees, who may be affected by their undertaking.