sublots is not required. If any pavement areas are ground, these areas
shall be retested immediately after grinding. The entire area of the
pavement shall be tested in both a longitudinal and a transverse direction
on parallel lines. The transverse lines shall be 4.5 m 15 feet or less
apart, as directed. The longitudinal lines shall be at the centerline of
each paving lane for lines less than 6.1 m 20 feet and at the third points
for lanes 6.1 m 20 feet or greater. Other areas having obvious deviations
shall also be tested. Longitudinal testing lines shall be continuous
across all joints.
a. Straightedge Testing. The straightedge shall be held in contact
with the surface and moved ahead one-half the length of the
straightedge for each successive measurement. The amount of surface
irregularity shall be determined by placing the freestanding
(unleveled) straightedge on the pavement surface and allowing it to
rest upon the two highest spots covered by its length, and measuring
the maximum gap between the straightedge and the pavement surface in
the area between these two high points.
b. Profilograph Testing. Profilograph testing shall be performed
using approved equipment and procedures described in CDT Test 526. The
equipment shall utilize electronic recording and automatic computerized
reduction of data to indicate "must-grind" bumps and the Profile Index
for the pavement. The "blanking band" shall be 5 mm 0.2 inches wide
and the "bump template" shall span 25 mm 1 inch with an offset of 10 mm
0.4 inch. The profilograph shall be operated by an approved,
factory-trained operator on the alignments specified above. A copy of
the reduced tapes shall be furnished the GovernmentEngineer at the end
of each day's testing.
3.11.8.3
Payment Adjustment for Smoothness
a. Straightedge Testing. Location and deviation from straightedge for
all measurements shall be recorded. When between 5.0 and 10.0 percent
of all measurements made within a lot exceed the tolerance specified in
paragraph Smoothness Requirements above, after any reduction of high
spots or removal and replacement, the computed pay factor for that lot
based on surface smoothness, will be 95 percent. When more than 10.0
percent of all measurements exceed the tolerance, the computed pay
factor will be 90 percent. When between 15.0 and 20.0 percent of all
measurements exceed the tolerance, the computed pay factor will be 75
percent. When 20.0 percent or more of the measurements exceed the
tolerance, the lot shall be removed and replaced at no additional cost
to the GovernmentOwner. Regardless of the above, any small individual
area with surface deviation which exceeds the tolerance given above by
more than 50 percent, shall be corrected by diamond grinding to meet
the specification requirements above or shall be removed and replaced
at no additional cost to the GovernmentOwner.
b. Profilograph Testing. Location and data from all profilograph
measurements shall be recorded. When the Profile Index of a lot
exceeds the tolerance specified in paragraph Smoothness Requirements
above by 16 mm/km 1.0 inch/mile, but less than 32 mm/km 2.0 inches/mile,
after any reduction of high spots or removal and replacement, the
computed pay factor for that lot based on surface smoothness will be 95
percent. When the Profile Index exceeds the tolerance by 32 mm/km 2.0
inches/mile, but less than 47 mm/km 3.0 inches/mile, the computed pay
factor will be 90 percent. When the Profile Index exceeds the
tolerance by 47 mm/km 3.0 inches/mile, but less than 63 mm/km 4.0
SECTION 02749
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