Atch_04_Spec_Section_32_01_16_Milling.doc

MAINTAIN/REPAIR PAVEMENTS IDIQ

IFB No.: F26600-99-R-C118

RKMF 98-0105

Contract No.:

PAVING IDIQ

Solicitation: FA4861-16-R-A300

SECTION 32 01 16

COLD MILLING OF BITUMINOUS PAVEMENTS

1. PART 1 GENERAL

1.1. REFERENCES: None

1.2. EQUIPMENT, TOOLS, AND MACHINES: Equipment, tools, and machines used in the performance of the work shall be maintained in a satisfactory working condition.

1.2.1. Cold-Milling Machine: The cold-milling machine shall be a self-propelled machine capable of milling the pavement to a specified depth and smoothness. Pavement milling machine shall be capable of establishing grade control; shall have means of controlling transverse slope; and shall have effective means of controlling dust produced during the pavement milling operation. The machine shall have the ability to remove the millings or cuttings from the pavement and load them into a truck. The milling machine shall not cause damage to any part of the pavement structure that is not to be removed.

1.2.2. Cleaning Equipment: Cleaning equipment shall be suitable for removing and cleaning loose material from the pavement surface.

1.2.3. Straightedge: The Contractor shall furnish and maintain at the site, in good condition, one 12 foot (3.66 meter) straightedge or other suitable device for each milling machine, for testing the finished surface. Straightedge shall be made available for Government use. Straightedges shall be constructed of aluminum or other lightweight metal, and shall have blades of box or box-girder cross section with flat bottom reinforced to insure rigidity and accuracy. Straightedges shall have handles to facilitate movement on the pavement.

1.3. WEATHER LIMITATIONS: Milling shall not be performed when there is accumulation of snow or ice on the pavement surface.

1.4. GRADE AND SURFACE-SMOOTHNESS REQUIREMENTS

1.4.1. Grade: The finished milled surfaces shall conform to the lines, grades, and cross sections indicated. The finished milled-pavement surfaces shall vary not more than the following tolerances from the established plan grade line and elevation. A tolerance of 12 mm (0.04 foot) will be specified when pavements in aircraft traffic areas of airfield and heliport runways, taxiways and aprons are to be cold milled. A tolerance of 18 mm (0.06 foot) will be specified when pavements in nonaircraft traffic areas such as blast pads, roads and stabilized shoulders are to be cold milled. Finished surfaces at a juncture with other pavements shall coincide with the finished surfaces of the abutting pavements. The deviations from the plan grade line and elevation will not be permitted in areas of pavements where closer conformance with planned grade and elevation is required for the proper functioning of appurtenant structures involved.

1.4.2. Surface Smoothness: Finished surfaces shall not deviate from the testing edge of a straightedge more than 6 mm (1/4 inch) in the transverse or longitudinal direction.

2. PART 2 PRODUCTS (Not Applicable)

3. PART 3 EXECUTION

3.1. MILLING OPERATION: Sufficient passes shall be made so that the designated area is milled to the grades and cross sections indicated. The milling shall proceed with care and in depth increments that will not damage the pavement below the designated finished grade. Items damaged during milling, such as manholes, valve boxes, utility lines, pavement that is torn, cracked, gouged, broken, or undercut, shall be repaired or replaced as directed.

3.2. GRADE AND SURFACE-SMOOTHNESS TESTING

3.2.1. Grade-Conformance Tests: The finished milled surface of the pavement shall be tested for conformance with the plan-grade requirements and will be tested for acceptance by the Contracting Officer by running lines of levels at intervals of 8 meters (25 feet) longitudinally and 8 meters (25 feet) transversely to determine the elevation of the completed pavement. The Contractor shall correct variations from the designated grade line and elevation in excess of the plan-grade requirements as directed. Skin patching for correcting low areas will not be permitted. The Contractor shall remove and replace the deficient low area. Sufficient material shall be removed to allow at least 25 mm (1 inch) of asphalt concrete to be placed.

3.2.2. Surface-Smoothness Tests: After completion of the final milling, the finished milled surface will be tested by the Government with a straightedge. Other approved devices may be used, provided that when satisfactorily and properly operated, such devices reveal all surface irregularities exceeding the tolerances specified. Surface irregularities that depart from the testing edge by more than 6 mm (1/4 inch) shall be corrected.

3.3. REMOVAL OF MILLED MATERIAL: Material that is removed shall be placed in the disposal area as specified.

END OF SECTION

Page 02964-1 (22 Mar 99)

Cold Milling

Page 32 01 16-1 (7 Feb 2016)