254.01 Description. This work consists of planing the existing
asphalt concrete and disposing of the
cuttings, and, if specified in the Contract, patching the planed surface.
254.02 Equipment. Use self-propelled planing equipment that has
sufficient power and stability to consistently and efficiently meet the
requirements of 254.05 and the plans. Use equipment with either grinding, sawing,
or milling type cutters. Ensure that the
cutters are mounted rigidly to the carrier and are adjustable to control the
depth of cut and cross-slope. Accomplish
longitudinal planing action by using equipment with a suitable carrier
wheelbase or with an automatic control system having an external
reference. Ensure that cross-slope
adjustments or automatic controls are capable of producing either a variable or
a constant cross-slope, as required.
For small
or confined areas, the Contractor may use
suitable supplemental equipment or methods approved by the Engineer.
254.03 Planing. Make one or more planing passes, as necessary,
over the designated area to the depth specified in the plans. Remove irregularities such as bumps,
corrugations, and wheel ruts, when required, to establish a new pavement
surface elevation or cross-slope.
Remove cuttings from the surface following
each pass. Before opening the completed
area to traffic, thoroughly clean the surface of all loose material that would
create a hazard or nuisance, or would redeposit into the surface texture. Dispose of cuttings according to 202.
Implement effective measures to control dust,
pavement contamination, and the scattering of loose particles during planing
and cleaning operations.
If planing
damages the adjacent pavement, repair the
damaged area to the Engineer’s satisfaction. Ensure that the repaired area matches the
adjacent pavement in terms of smoothness and mix type.
254.04 Surface Patching. Patch areas of the planed surface that the
Engineer designates to have spalling or dislodged
unsound pavement. Before patching, clean
areas of loose material, coat with 407.02
asphalt material, and fill with Item 448, Type 1
material. Level and compact new material
flush to the adjacent planed pavement.
254.05 Surface Tolerances. Plane the surface free from grooves, ridges,
gouges, or other irregularities detrimental to the safe operation of vehicles
on the planed surface.
If the Contract specifies planing without
resurfacing, plane the surface to a smoothness of 1/8 inch in 10 feet (3 mm in
3 m). If the Contract specifies
resurfacing after planing, plane the surface to a smoothness of 1/4 inch in 10
feet (6 mm in 3 m). Match the surfaces
at the edges of adjacent passes within 1/8 inch (3 mm). Ensure that the cross-slope of the planed
surface is within 3/8 inch in 10 feet (10 mm in 3 m) of the specified
cross-slope.
254.06 Method of Measurement. The Engineer will
measure the quantity of Pavement Planing, Asphalt Concrete by the
number of square yards (square meters).
The Engineer will
measure the quantity of Patching Planed Surface by the number of square yards
(square meters).
254.07 Basis of Payment. The Department will not pay for repairs due to damage caused by planing
operations. If the depth of the planed
surfaces is increased by more than 3/8 inches
(10 mm) the Department will compensate for the additional work.
The
Department will pay for accepted quantities at the contract prices as follows:
Item unit Description
254 Square Yard Pavement Planing, Asphalt Concrete
(Square Meter)
254 Square Yard
(Square Meter) Patching Planed Surface