3.2.4
Calking
Apply calking around all drains, pipes, and other items which penetrate the
surfaces to be waterproofed.
3.2.5
Recesses
Waterproof recesses, but do not fill to a lesser opening than detailed.
3.2.6
Penetrations
Do not apply waterproofing until anchorage items or other items passing
through or protruding from the surfaces have been installed. Treatment
shall be completed and approved prior to attachment of utilities to
anchorage items.
3.3
MIXING
Follow mixing instructions supplied by the manufacturer.
3.4
APPLICATION
3.4.1
Limits of Application
Completely coat columns integral with exterior walls. Return wall
waterproofing at least 600 mm 24 inches on interior concrete walls and 1200
mm 48 inches onto masonry walls that are in place at the time of the
waterproofing application. Return floor waterproofing at least 300 mm 12
inches vertically up on the face of all interior walls, partitions, and
interior columns in place at the time of waterproofing application.
3.4.2
Walls and Columns
Thoroughly dampen surfaces to receive waterproofing. Apply two coats of
thick slurry to each 10 square meters 100 square feet of surface: first
coat, consisting of 42.6 kilograms 94 pounds of portland cement, 85.3
kilograms 188 pounds of sand, and 4.5 kilograms 10 pounds of metallic oxide
waterproofing compound; second coat, same mix as first coat except with 3.6
kilograms 8 pounds of metallic oxide waterproofing for each 42.6 kilograms
94 pounds of cement. Apply each coat by brushing with stiff bristle
brushes to seal all pores. Allow sufficient time between coats to permit
oxidation of material, but not more than 24 hours before application of
subsequent treatment. Periodically spray each coat with fine fog spray
during oxidation period to ensure thorough curing. Where air circulation
is insufficient to properly oxidize waterproofing, provide fans or other
means to ensure adequate circulation.
3.4.3
Floors
After surfaces are roughened and properly prepared, thoroughly wash and
clean all surfaces prior to application of waterproofing treatment. Apply
two coats of thick slurry as previously specified for walls and columns,
each coat thoroughly scrubbed and broomed to completely coat floor surface.
3.4.4
Bond Coat
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NOTE: If wall or floor finishes such as plaster or
SECTION 07161
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