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 measuring the
maximum gap between the straightedge and the pavement surface.
Measurements shall be determined along the entire length of the
straight edge.
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 each 0.1 km 0.1 mile segment of the pavement lot. Grade breaks on
aprons [parking lots] shall be accomodated by breaking the profile
segment into short sections and repositioning the blanking band on each
section. 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 testing of the last 9.1 m 30 feet of a paving lane in
the longitudinal direction from each day's paving operation shall be
counted on the following day's continuation lane. The profile index
shall be computed for each pass of the profilograph (3 per lane) in
each 0.1 km 0.1 mile segment. The profile index for each segment shall
be the average of the profile indices for each pass in each segment.
Profilographs of unequal lengths shall be scaled and proportioned to an
equivalent 0.1 km 0.1 mile as outlined in the CDT Test 526. A copy of
the reduced tapes shall be furnished the Government at the end of each
day's testing.
1.5.5.3
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 percent payment based on
surface smoothness will be 95 percent. When more than 10.0 percent and
less than 15.0 percent of all measurements exceed the tolerance, the
computed percent payment will be 90 percent. When between 15.0 and
20.0 percent of all measurements exceed the tolerance, the computed
percent payment 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 Government.
b. Profilograph Testing: Location and data from all profilograph
measurements shall be recorded. When the Profile Index of a 0.1 km 0.1
mile segment of a lot exceeds the tolerance specified in paragraph
"Smoothness Requirements" above by 16 mm per km 1.0 inch per mile but
less than 32 mm per km 2.0 inches per mile, after any reduction of high
spots or removal and replacement, the computed percent payment based on
surface smoothness will be 95 percent. When the Profile Index exceeds
the tolerance by 32 mm per km 2.0 inches per mile but less than 47 mm
per km 3.0 inches per mile, the computed percent payment will be 90
percent. When the Profile Index exceeds the tolerance by 47 mm per km
3.0 inches per mile but less than 63 mm per km 4.0 inches per mile, the
computed percent payment will be 75 percent. When the Profile Index
exceeds the tolerance by 63 mm per km 4.0 inches per mile or more, the
lot shall be removed and replaced at no additional cost to the
SECTION 02753
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