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Historic Preservation - Technical Procedures

Spectitle:
Removing Asbestos-Containing (Vat) And Mastic

Procedure code:
0208003R

Source:
Federal Building/Uspo, Spokane, Wa - Gsa/Pbs

Division:
Sitework

Section:
Hazardous Material Abatement

Last Modified:
02/24/2012

Details:
Removing Asbestos-Containing (Vat) And Mastic



REMOVING ASBESTOS-CONTAINING (VAT) AND MASTIC


THIS PROCEDURE MUST BE USED IN CONJUNCTION WITH 02080-01-R
"PROCEDURES FOR REMOVING ASBESTOS-CONTAINING MATERIALS".  IT
CONTAINS IMPORTANT REQUIREMENTS, PRECAUTIONS, EQUIPMENT AND
MATERIALS REQUIRED FOR ASBESTOS ABATEMENT.


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on removing
         asbestos-containing vinyl asbestos tile (VAT) and mastic.
         

PART 2---PRODUCTS

                          [Refer to 02080-01-R]


PART 3---EXECUTION

3.01 ERECTION, INSTALLATION, APPLICATION

    A.   Use water-wetted, non-mechanical removal methods (hand
         spudding) and promptly remove loosened material from the
         floor. Continuous wetting of loosened material is not a
         substitute for immediate removal, containment and
         disposal.

    B.   If air monitoring indicates airborne levels at or above
         0.05 fibers per cubic centimeter, an approved amended
         water solution, utilized in accordance with the
         manufacturers directions, shall immediately be
         substituted for water wetting at the direction of the
         Contracting Officer s Representative.

    C.   Remove all loosened materials immediately from floor
         areas including floor tile, mastic and wood subfloor and
         place in burlap bags. Then insert filled burlap bags into
         6-mil plastic bags. Filled plastic bag shall be placed
         into covered dumpsters or other covered portable
         containers lined with 6-mil polyethylene located on the
         same floor. Dispose of removed material as asbestos
         waste.

    D.   Remove plywood subfloor using power tools as required.
         Perform power cutting while inside negative pressure
         enclosure.

    E.   Limits of Removal:

         1.   Tile and mastic shall be removed only from the
              rooms and areas indicated.

         2.   The vinyl asbestos tile and asbestos-containing
              mastic shall be removed from each floor or feature
              indicated to a distance indicated. DO NOT CUT
              TILES, EXCEPT ALONG EDGES OF THE WALLS TO REMAIN.

         3.   The Contractor shall remove all partial (non-whole)
              pieces of tile and mastic.

         4.   Remaining tiles shall abut against the other
              remaining tiles on at least two sides.

         5.   Asbestos-containing mastic shall be removed by
              solvents approved by the Contracting Officer. The
              surface where mastic is removed shall be sprayed
              with an approved encapsulant.

         6.   The Contractor shall take all precautions that the
              tile remaining after the abatement is secure and
              completely fastened to the floor. All loose tiles
              to remain must be re-cemented and secured.

                             END OF SECTION