Attachment_4_-_Cold_Milling_Specifications.pdf

SECTION TABLE OF CONTENTS

SECTION 32 01 16.71

COLD MILLING ASPHALT PAVING

PART 1 - GENERAL

1.1 NOT USED

1.2 QUALITY ASSURANCE

1.2.1 Grade

1.2.2 Surface Smoothness

1.3 EQUIPMENT, TOOLS, AND MACHINES

1.3.1 Cold-Milling Machine

1.3.2 Cleaning Equipment

1.3.3 Straightedge

PART 3 - EXECUTION

3.1 MILLING OPERATION

3.2 SURFACE-SMOOTHNESS TESTING

3.2.1 Surface-Smoothness Tests

3.3 REMOVAL OF MILLED MATERIAL

-- End of Section Table of Contents --

5 April 2018

SECTION 32 01 16.71

COLD MILLING ASPHALT PAVING

PART 1 - GENERAL

1.1 NOT USED

1.2 QUALITY ASSURANCE

1.2.1 Grade

Mill pavement such that the finished surface conforms to the lines, grades, and cross sections indicated. The maximum allowable deviation of the finished milled pavement surfaces from the established plan grade line and elevation will be 1/4 inch.

1.2.2 Surface Smoothness

The maximum allowable deviation of the finished surfaces from the testing edge in the transverse or longitudinal direction will be 1/4 inch.

1.3 EQUIPMENT, TOOLS, AND MACHINES

Maintain in a satisfactory working condition equipment, tools, and machines used in the performance of the work.

1.3.1 Cold-Milling Machine

Provide a cold-milling machine which is self-propelled, capable of milling the pavement to a specified depth and smoothness and of establishing grade control; with means of controlling transverse slope and dust produced during the pavement milling operation. Machine will have capability of adding water in front of equipment to minimize dust during milling operation. The machine will have the ability to remove the millings or cuttings from the pavement and load them into a truck.

The milling machine will not damage any part of the pavement structure that is not to be removed.

1.3.2 Cleaning Equipment

Provide cleaning equipment suitable for removing and cleaning loose material from the pavement surface.

1.3.3 Straightedge

Furnish and maintain at the site, in good condition, one 12 foot straightedge or other suitable device for each milling machine, for testing the finished surface. Make straightedge available for Government use. Use straightedges constructed of aluminum or other lightweight metal, with blades of box or box-girder cross section with flat bottom reinforced to insure rigidity and accuracy. Use straightedges with handles to facilitate movement on the pavement.

PART 3 - EXECUTION

3.1 MILLING OPERATION

Make sufficient passes so that the designated area is milled to the grades and cross sections indicated. If scabbing occurs, the surface will not meet smoothness requirements. Take steps to modify the process as needed to prevent scabbing from occurring. Repair or replace, as directed, items damaged during milling such as pavement that is torn, cracked, gouged, broken, or undercut. Remove the milled material from the pavement and load into trucks.

3.2 SURFACE-SMOOTHNESS TESTING

3.2.1 Surface-Smoothness Tests

After completion of the final milling, the finished milled surface will be tested 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. Correct surface irregularities that depart from the testing edge by more than 1/4 inch. Skin patching for correcting low areas will not be permitted. Remove and replace the deficient low area. Remove sufficient material to allow at least 1 inch of asphalt concrete to be placed.

3.3 REMOVAL OF MILLED MATERIAL

Stockpile material that is removed as specified and in such a manner to prevent segregation or contamination.

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