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Abestos Contamination in Recycled Construction Materials
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Posted By Chris Shaw
Good Morning,
I have just been asked by a colleague if there is any guidance available on the above subject.
Background
The original scheme included the demolition and on site mechanical crushing for reuse of an existing hard-standing, some areas of which had basement areas with an asbestos soffit. This material has since been spread over the site and is suspected to contain asbestos materials.
Unfortunately i know very little about the scheme, my thoughts are that a huge clanger has been dropped and the entire site is now contaminated, and that this layer should be removed by a licenced contractor and disposed of as contaminated waste.
However the original question asked by my colleague was, is there any guidance as to the permissible or acceptable levels of asbestos contamination in recycled materials used as fill.
Thanks, Chris
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Rank: Guest
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Posted By Adrian Watson
Dear Chris,
Unfortunately a clanger has been dropped! You have committed a strict liability offense of failing to prevent the spread of asbestos! You cannot use the material as this another offense under CAR 2006.
You should see if you can segregate the material. The waste to be hazardous waste must display the hazardous properties (H7) and be more than 0.1% by weight.
Regards Adrian
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Rank: Guest
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Posted By Adrian Watson
Dear Chris,
Unfortunately a clanger has been dropped! You have committed a strict liability offense of failing to prevent the spread of asbestos! You cannot use the material as this is another offense under CAR 2006.
You should see if you can segregate the material. The waste to be hazardous waste must display the hazardous properties (H7) and be more than 0.1% by weight.
Regards Adrian
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Posted By Jim Masson
Double clanger, the site duty holder should have surveyed the basement areas and maintained a 'Register of Asbestos Containing Materials' for the past few years!
They'll need to carry out air tests to determine the amount of airborne fibres as well as the concentration in the crushed material.
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Posted By steven bentham
Asbestos soffit can vary widely.
The solution will vary depending upon what you have.
I would advise that you establish the exact type of asbestos soffits you have (is it cement or asbestos insulation board and the asbestos type).
Asbestos insulation board is much more of a problem.
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Posted By Dave Wilson
firstly you have to ascertain what type of Material it was either AIB / Cement etc.
You should have had a type 3 survey done by the client as a requirement of CAR 06 and CDM 07 - If not the client and the PC could be in the Poo! The survey would have done this or you.
There is a document IRCL on remediation of contaminated land with asbestos. Its old 1990 but still is in use today.
depending on type of ACM it will depend on whether a Licensed Contractor would have to be used, generally not required for asi cement. Basically a hand pick of visible asbestos and the rest disposed of as hazardous waste if above the 0.1 w/w per volume.
Type 5 overalls , industrial wellies, P3 half mask, DCU or other suitable decontamination procedures.
Email me if you want any more info mate
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Posted By Doug Kelly The document Dave refers to is ICRCL 64-85 Asbestos on Contaminated Sites (2nd edition 1990) a useful starting point. It is a little dated but may be a useful starting point. The document is available as a free pdf download at: http://www.eugris.info/envdocs/ICRCL64_85.pdf
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