(3) Center bored and through bolted with a 6 mm 1/4 inch minimum
diameter steel shaft having a yield strength of not less than 483
MPa 70,000 psi, with eyes or loops at each end for attaching
pulling cables.
(4) Each eye or loop shall be suitably backed with a flange or
heavy washer such that a pull exerted on opposite end of shaft
will produce compression throughout remote end.
b.
Deflection measuring device: Sensitive to 1.0 percent of the
diameter of the pipe being tested and accurate to 1.0 percent of
the indicated dimension. Deflection measuring device shall be
approved by the Contracting Officer prior to use.
c.
Pull-through device: Pass the pull-through device through each
run of pipe, either by pulling it through or flushing it through
with water. If the device fails to pass freely through a pipe
run, replace pipe which has the excessive deflection and
completely retest in same manner and under same conditions as
specified.
d.
Deflection measuring device procedure: Measure deflections
through each run of installed pipe. If deflection readings in
excess of 4.5 percent of average inside diameter of pipe are
obtained, retest pipe by a run from the opposite direction. If
retest continues to show a deflection in excess of 4.5 percent of
average inside diameter of pipe, remove pipe which has excessive
deflection, replace with new pipe, and completely retest in same
manner and under same conditions.
e.
Warranty period test: Pipe found to have a deflection of greater
than 5 percent of average inside diameter when deflection test is
performed just prior to end of one-year warranty period shall be
replaced with new pipe and tested as specified for leakage and
deflection.
3.9
FIELD PAINTING
[After installation, clean cast-iron frames, covers, gratings, and steps
not buried in masonry or concrete to bare metal of mortar, rust, grease,
dirt, and other deleterious materials and apply a coat of bituminous
paint.] [After installation, clean steel covers and steel or concrete
frames not buried in masonry or concrete to bare metal of mortar, dirt,
grease, and other deleterious materials. Apply a coat of primer, [_____],
to a minimum dry film thickness of [_____] mm mil; and apply a top coat,
[_____] to a minimum dry film thickness of [_____] mm mils, color optional.
Painting shall conform to Section 09900 PAINTS AND COATINGS.] Do not
paint surfaces subject to abrasion.
-- End of Section --
SECTION 02630
Page 41
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