chimney seals or liners. Contractor shall perform holiday detection testing in the presence
of an inspector with test equipment appropriate for the product. All detected holidays
shall be marked and repaired by abrading the coating surface with grit disk paper or
another hand-tooling method. After aorading and cleaning, additional coating shall be
hand-aoplied to the repair area as needed. All touch-up/reoair procedures shall be in
accordance with the coating manufacturer's recommendations. All verification and
holiday detection testing shall be at no cost to the Owner and shall be paid for by the
menufacturer or the Contractor.
Adhesion (Pull-off) testing shall be required on one randomly-selected chimney seal for
each group of ten manholes rehabilitated with internal chimney seals or liners. A portable
pull-off adhesion tester shall be used to achieve substrate failure. Any chimney seals or
liners failing this test shall be reworked as necessary and retested at no additional cost to
the Owner.
Chimney seals shall be accepted by the Owner and Engineer after they pass holiday
detection testing, adhesion testing, and a visual inspection for voids, pinholes, and
leakage.
Internal liners shall be accepted by the Owner and Engineer after they pass vacuum
testing, holiday detection testing, adhesion testing, and a visual manned entry inspection
for voids, pinholes, cracks, leakage, and ay other defect.
Drop bow! assemblies, and reconstructed channels, inverts, and benches shall be accepted
by the Owner and Engineer after they pass a visual manned entry inspection for voids,
pinholes, cracks, leakage, and any other defect.
END OF SECTION
02800-9
