b. Bridging encapsulant (used to provide a tough,
durable surface coating to asbestos containing
material).
c. Penetrating encapsulant (used to penetrate the
asbestos containing material encapsulating all
asbestos fibers and preventing fiber release due to
routine mechanical damage).
d. Lock-down encapsulant (used to seal off or
"lock-down" minute asbestos fibers left on surfaces
from which asbestos containing material has been
removed).
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Encapsulants shall conform to USEPA requirements, shall contain no toxic or
hazardous substances and no solvent.
2.2
ENCASEMENT PRODUCTS
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NOTE: This technique is not used often. Before
specifying, consult state requirements and ensure
that the materials, use requirements and warranties
are fully developed with the customer. See RESPONSE
ACTION DETAIL SHEETS 66, 67, 69 and 90.
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Encasement shall consist of primary cellular polymer coat, polymer finish
coat, and any other finish coat as approved by the CO.
[2.3
RECYCLABLE MATERIALS
Recyclabe materials shall comform to EPA requirements in accordance with
Section 01670 RECYCLED / RECOVERED MATERIALS.
]PART 3
EXECUTION
3.1
GENERAL REQUIREMENTS
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NOTE: EPA NESHAP at 40 CFR 61, Subpart M and OSHA
29 CFR 1926.1101(g)(1)(ii) require adequately wet
removal procedures. There are two exceptions to
this policy allowing dry removal; they are specified
in the EPA 340/1-90/019 NESHAP guidance handbook.
In most cases, use wet removal procedures because it
is the preferred method and the least hazardous.
Dry removal is an option that should be used only
where wet removal may damage adjacent areas or
equipment, or where safety hazards are identified.
If dry removal alone is allowed, carefully edit the
specification to remove references to amended water
and wetting down procedures and to include a
requirement for a written variance submitted by the
Contractor, along with the written approval of any
regulatory authority having jurisdiction, to the CO
for review.
Requirements for abatement of asbestos outdoors
varies considerably with the work and the location
SECTION 13280A
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