3.11.8
Surface Smoothness
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NOTE: Edit these paragraphs as appropriate to the
project. It is desired to restrict surface
smoothness testing and evaluation to either
straightedge method or profilograph method. Retain
the one and delete the other; otherwise, retain both
as a Contractor's option. Generally, designer
should require use of the profilograph method. If
the profilograph method is allowed, and there are
areas with dimensions less than 60 m (200 feet) in
any direction, part of the straightedge method must
be retained for these short runs.
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The Contractor shall use [one] [both] of the following methods to test and
evaluate surface smoothness of the pavement. All testing shall be
performed in the presence of the Contracting OfficerEngineer. Detailed
notes of the results of the testing shall be kept and a copy furnished to
the GovernmentEngineer immediately after each day's testing. The
profilograph method shall be used for all longitudinal and transverse
testing, except where the runs would be less than 60 m 200 feet in length
and the ends where the straightedge shall be used. Where drawings show
required deviations from a plane surface (crowns, drainage inlets, etc.),
the surface shall be finished to meet the approval of the Contracting
OfficerEngineer.
3.11.8.1
Smoothness Requirements
a. Straightedge Testing: The finished surfaces of the pavements shall
have no abrupt change of 3 mm 1/8 inch or more, and all pavements shall
be within the tolerances specified in Table 9 when checked with an
approved 4 m 12 foot straightedge.
Table 9.
Straightedge Surface Smoothness--Pavements
Pavement Category
Direction of Testing
Tolerance, mm
-----------------
--------------------
-------------
Runways and taxiways
Longitudinal
3
Transverse
6
Calibration hardstands and
Longitudinal
3
compass swinging bases
Transverse
3
All other airfields and
Longitudinal
6
helicopter paved areas
Transverse
6
Table 9.
Straightedge Surface Smoothness--Pavements
Pavement Category
Direction of Testing
Tolerance, inches
-----------------
--------------------
-----------------
Runways and taxiways
Longitudinal
1/8
Transverse
1/4
Calibration hardstands and
Longitudinal
1/8
compass swinging bases
Transverse
1/8
SECTION 02749
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