Asbestos Cement

Asbestos cement is a material which is a mixture of cement and usually chrysotile (white asbestos) and which when in a dry state absorbs less than 30% water by weight. Analysis of a sample would be needed to establish if the product is cement and if the cement contained asbestos and the asbestos type(s).   If, after analysis of the asbestos types, there is still doubt about whether a material is an asbestos cement product a water absorption test is carried out to determine if the material is asbestos cement, or whether work on the material requires a licence.

Where do you find asbestos cement?
You can find asbestos cement  inside and outside buildings such as:

Asbestos cement roofs
These are mainly made up of large sheets of corrugated asbestos cement; they are often found on industrial or farmyard buildings, but also can be found as roofs on domestic garages and sheds.

Asbestos downpipes and gutters
Sometimes found attached to cement roofs but have also been used domestic use.

Asbestos wall cladding
Shape and structure is similar to roof sheeting, and is often found on walls/as walls of buildings with asbestos cement roofs.

Asbestos cement flues
These may be found in boiler systems (including domestic) air conditioning and ventilation systems.

What does it look like?
Asbestos cement is just ordinary cement mixed with asbestos. It is a hard, grey material which was moulded and compressed to produce some of the products listed above.