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Posted By Peter MacDonald
Hello
Scenario - Sprayed asbestos coating has been removed previously some years ago from concrete bison type slabs. The removal did not catch the residue of coating that found it's way into the slab joints.
Has anyone (Dave Wilson?) specifically dealt with the removal of residue such as this. Can it actually be removed?
Please don't tell me about licensed contractors, type 3, regulations etc. I'm looking for a particular technique or best practice for discussion with asbestos dept.
Pete
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Posted By MarkJAWatkins
Peter,
Do you have size of the concrete slabs, how big a gap, is the concrete smooth finish or rough?
Let me know.
Regards, Mark
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Posted By Peter MacDonald
Mark
Only seen the type three and some less than detailed photos. I have a site visit lined up late next week. When that's done I'll pass on info.
Cheers
Peter
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Posted By hoops
hi There
the only experience i have had is that i had to sand blast the entire surface under controlled conditions
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Posted By MarkJAWatkins
Your HEPA filter on your NPU will keep clogging up using this method. There other options available but require more info.
Pete, get back to me after your site visit.
Regards,
Mark
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Posted By Renny Thomson
Do you need to remove it?
Why not encapsulate it and record the location in the Asbestos Register. You can then make sure all contractors are made aware of it in case they disturb it. This should be less costly and easy to carry out with minimal dsruption.
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Posted By Robert K Lewis
Totally agree with Renny - You stand to cause more than a minor problem if you try to remove the material, you may also weaken the structure. Much better to seal and record the locations on the final scheme drawings. Do the marking up of the drawings early though before you forget where it all is. Yes I have seen this happen!!
Bob
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Posted By Dave Wilson
The only other way if you insist on removal is spraying with a surfactant and breaking the concrete slab, all goes off site as contaminated waste.
best option wold be encapsulate as described.
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