Specifications - Lord and Son Construction, Inc.

4. Wet floor tiles with amended water during removal to minimize fiber release
during removal. Use amended water sparingly and apply with a sponge, cloth
or mop to eliminate standing water and to prevent water from traveling to other
areas. If approved in advance by the Contracting Officer, a damp towel may
be placed over tiles during removal as an alternate to a direct application of
amended water.
5. Remove individual floor tiles by wedging a scraper under one edge of the tile
and exerting a twisting, prying force as it is moved under the tile until the tile
releases from the substrate. Avoid breaking floor tiles. If tiles do not release
easily, a mallet or hammer may be used to strike the scraper and force it under
the floor tile; hot air blowers may be used to heat the tile and soften the
adhesive. Place tiles in asbestos disposal bags immediately after removal
from substrate.
6. Scrape up remaining mastic and adhesives and deposit scrapings in disposal
bags as small areas of floor are cleared of tile.
7. Clean floor of all visible mastic residue by wet mopping with approved solvent.
3.3 EQUIPMENT REMOVAL PROCEDURE
A. Clean external surfaces of contaminated containers and equipment thoroughly by
wet sponging or HEPA vacuum before moving such items into the equipment
decontamination enclosure system washroom for final cleaning and removal to
uncontaminated areas. Ensure that personnel do not leave work areas through the
equipment decontamination enclosure system.
3.4 FIRST CLEANING – GENERAL
A. First Cleaning: Carry out a first class cleaning of all surfaces of the work area
including items of remaining sheeting, tools, scaffolding and/or staging by use of
damp cleaning and mopping, and/or a High Efficiency Particulate Absolute (HEPA)
filtered vacuum. (Note: A HEPA vacuum will fail if used with wet material.) Do not
perform dry dusting or dry sweeping. Use each surface of a cleaning cloth one
time only and then dispose of as contaminated waste. Continue this cleaning until
there is no visible debris from removed materials or residue on plastic sheeting or
other surfaces.
B. Remove all filters in air handling system(s) and dispose of as asbestos containing
waste.
C. Wait 24 hours to allow negative air machines to clean air of airborne asbestos
fibers. Use oscillating fans as necessary to assure circulation of air in all parts of
work areas during this period. Maintain negative pressure system in operation for
the entire 24 hour period.
D. Encapsulation of Substrate: Perform encapsulation of substrate where required at
this time. Maintain negative air system in operation during encapsulation work.
Encapsulant shall be spray applied with coverages as recommended by the
manufacturer. Encapsulant shall be tinted a contrasting color to the substrate, to
facilitate verification of coverage.
MAHG121038 02 11 50 - 11 ASBESTOS REMOVAL