HomeMy WebLinkAbout04-01-87.5SUMMARY OF PAVEMENT CONDITION SURVEY*
RUNWAY 15 - 33
The first 840 feet of the runway on the north end has a concrete
surface. The size of the panels are 12-1/2' by 15'. The pavement surface
is in good shape with very little distress noted. A 500 foot sample
section was surveyed in detail which revealed two or three minor cracks
and a few small spalled areas along joints. The joints, on the other hand
are in poor condition throughout the concrete surfaced section. The joint
sealant is hard and brittle and has come out of the joints in some places.
There is grass growing in many of the joints.
The remaining 4543 feet of the runway has an asphalt surface. A
detailed condition survey was made in four different sample sections:
10+00 to 15+00; 26+00 to 30+00; 36+00 to 40+00; and 45+00 to 49+00. The
sample sections covered the full width of the runway. The sample areas
were typical of the pavement's condition throughout the runway length.
The overall condition of the asphalt portion of the runway is fair to
poor on the north end and changes to poor condition going toward the south
end. The typical distresses found were:
o alligator or fatigue cracking
o longitudinal cracking
o transverse cracking
o diagonal cracking
o patching
The fatigue cracks were observed in the wheel paths on either side of
the taxi -stripe at the intersection of Taxiways D & K. The cracks were
generally low to medium severity and occurred for the full width of the
runway. Low severity fatigue cracking was also noticed in the wheel paths
on either side of the runway centerline for a short distance on the south
end of the runway.
The majority of longitudinal cracks observed on the runway coincided
with the longitudinal construction joints and occurred throughout the
length of the asphalt section of the runway. The sample section in the
middle of the runway length indicated the highest extent of longitudinal
cracking which occurred on all paving joints for the majority of the
sample length. The sample areas on either end of the runway showed a
relatively low extent of the longitudinal cracking. The cracks noted
ranged from low to high severity.
A low extent of transverse cracking was observed on the asphalt
surface. Most of the cracks were one to ten feet long and ranged from low
to high severity. There were several high severity transverse cracks
which extended the full width of the runway. Based on a core taken on one
of these cracks, the full width cracks seem to be reflection cracks which
have occurred due to a crack or joint in the underlying PCC.
Several medium to high severity diagonal cracks were also noted.
These cracks were almost full width of the runway. Two patches were found
in the sample sections. The patches are deteriorated with numerous
longitudinal & transverse cracks.
TAXIWAY A / WEST RAMP
A detailed condition survey was performed for three sample sections
along the taxiway: Sta. 3+00 to 8+00 (south end of taxiway), 20+00 to
25+00 (center of taxiway), and 37+00 to 41+00 (north end of taxiway).
Overall, the asphalt -surfaced taxiway appeared in fair to poor condition.
The distress noted in the sample sections was fairly consistent and
included the following:
* CONDITION SURVEY CONDUCTED OCTOBER 1986
o longitudinal cracking
o transverse cracking
o patching
The longitudinal cracking is mostly at longitudinal construction
joints. The cracks range in severity from low to high. About one-half of
the construction joints show some degree of longitudinal cracking.
The transverse cracking was observed throughout the taxiway length.
However, the cracks were relatively short, usually going through one or
two paving lanes only. The severity levels ranged from low to high.
Some relatively small patches were observed. The patches appeared to
be in fair to good condition.
A portion of the taxiway has been removed and replaced on the east
side of the centerline. This new surface is in very good condition.
TAXIWAY B
Overall the asphalt -surfaced taxiway is in fair to poor condition
with the exception of some newly placed pavement west of the taxiway
centerline. The new pavement is in very good condition. Several types of
cracking were apparent on the older portion of the taxiway: longitudinal,
transverse and diagonal. There were several high severity transverse
cracks that extended the full width of the taxiway. The remaining cracks
were from one foot to fifty -feet in length and ranged from low to high
severity.
TAXIWAY C.
The taxiway is asphalt surfaced and in fair to poor condition. A
number of moderate to high severity transverse cracks are present which
are nearly the full width of the taxiway.
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