thodob;12391 said:
we use a modified asphalt cutter head (more and smaller knobs) attached to an excavator. We mill out between 2-5mm paint, mortar/concrete and between 50-100m2 pr hour. The debris is picked up using tarpaulin on the ground. This method demands possibility for reaching the contaminated wall/floor with an excavator. We have just been using this method for PCB-contaminated paint though. This method cant be use if dust is a problem in the surroundings.If the paint is on a floor, you can use centrifugal blastcleaning. Very effectiv if the layer isnt very big.
Anyone knows a good method for removal of LBP on steel structures? (and not sandblasting.... )
Cold cut is the best method on large steel...shears etc. They do make a solvent that can be applied if you're torching the steel to cut it...apply a small amount around your cut wait a day, strip it off and dump it in a 5/gal bucket. Keep in mind the more waste streams you generate the more the Consultant/Engineer wants to get into your business.
Pentek produces concrete scabblers that are dust free. Their web site is Dustless, lead abatement, nuclear decontamination, surface removal,- Pentek, Inc
we use a modified asphalt cutter head (more and smaller knobs) attached to an excavator. We mill out between 2-5mm paint, mortar/concrete and between 50-100m2 pr hour. The debris is picked up using tarpaulin on the ground. This method demands possibility for reaching the contaminated wall/floor with an excavator. We have just been using this method for PCB-contaminated paint though. This method cant be use if dust is a problem in the surroundings.
If the paint is on a floor, you can use centrifugal blastcleaning. Very effectiv if the layer isnt very big.
Anyone knows a good method for removal of LBP on steel structures? (and not sandblasting.... )
I understand the Consultants and "learned-Engineers" are leary of recycling LBP on concrete however in my experience.... Typically... 5ppm is the action level for lead nationally and in most states. In 2002 I crushed a 650/K sf factory with interior LBP. With proper misting and dust control during the crushing operation, the 20 random samples we were required by the NJDEP to take..."ALL" were well below the mandated TCLP for apporved backfill. Roughly 45,000/cy of brickbat/concrete & masonry fill the basement void after demo saving the City quite a bit of change. Compactions exceeded the 95% threshold as well.
Check this link out it may be of some information that will be of help.....
Recycling Today Magazine :: Article :: Lead-Based Paint Picture
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