415COLD PLANING OF BITUMINOUS PLANT MIX PAVEMENTS

415.01 Description ................................ ................................ ................... 381

415.02 Equipment ................................ ................................ .................... 381

415.03 General Requirements ................................ ................................ .. 382

415.04 Surface Requirements ................................ ................................ .. 383

415.05 Method of Measurement ................................ .............................. 383

415.06 Basis of Payment ................................ ................................ .......... 384

DESCRIPTION

415.01 Description

This work consists of cold planing an existing bituminous plant mix pavement. EQUIPMENT

415.02 Equipment

Provide a power broom, a water truck, and a planing machine, as well as equipment to remove the material planed from the pavement. The planing machine shall be a power operated, self -propelled milling machine or grinder capable of removing bituminous concrete to the required width, depth, profile, cross -slope, and surface texture. The machine shall be capable of accurately establishing profile by referencing from either the existing pavement or from an independent grade control and shall have positive means for cont rolling cross -slope. The machine shall have a floating moldboard with sufficient down pressure to plane the milled surface. The machine shall have an effective means of removing cuttings from the pavement and for preventing dust from escaping into the ai r. When milling the Interstate or controlled access freeways, the planing machine shall be capable of restoring pavement profile with a non -contact leveling system. T he non-contact leveling system shall have a minimum of three sensors dispersed the length of the machine. 415.03 382 The maximum spacing between teeth on the cutter drum shall not exceed 5/8 inches. Provide supplemental equipment as necessary to remove material in areas that cannot be reached by the planing machine. CONSTRUCTION REQUIREMENTS

415.03 General Requirements

Coordinate operations so that vertical longitudinal faces do not exceed 1-1/4 inches in height in areas to be used by public traffic. Taper transverse faces in a manner approved by the Engineer to avoid creating a traffic hazard. Perform cold planing in the direction of traffic. When milling roadways for hot mix overlays, operate the planing machine at a consistent forward speed to provide an acceptable surface texture. The maximum allowable forward speed shall be 60 feet per minute whe n the teeth spacing is between ½ and 5/8 inches, and 80 feet per minute when the teeth spacing is less than ½ inch. After planing, ensure that the finished surface provides a smooth riding surface free of scallops, scabs, gouges, ridges, oil film, and othe r imperfections of workmanship, has a uniform texture, and is true to the required grade and cross -section. The elevation of the longitudinal edges of adjacent cuts shall not differ more than 1/8 inch. Do not begin milling unless the subsequent layer of p avement can be placed within the limitation specified in 407.09. Thoroughly sweep the planed pavement immediately behind the machine, and haul away all materials swept up. When the Engineer deems necessary, provide and use a wat er truck to control dust. Where sound pavement has been gouged, torn, or otherwise damaged during the milling operations, or damage is done to any other property of any kind including utility frames, grates, and covers, make repairs at no cost to the Department. Take appropriate measures so that the cold planing operation does not trap water. 415.04 383 415.04 Surface Requirements Where the planed pavement is not to be resurfaced, provide a uniform texture throughout the Project and a satisfactory riding surface. T he average texture depth shall be no less than 0.20 inches. The finished surface on the Interstate and controlled access freeways shall be of uniform profile throughout, without any scabbing, scallops, gouges, ridges, or other imperfections resulting from worn cutter teeth, improper operating speeds, poor equipment maintenance, or other instances of poor workmanship. The cross -slope shall be as shown on the Plans in the tangent, transition, and super -elevated curve sections. The finished surface after the final cut shall not show a deviation greater than 1/8 inch from a 10 -foot straightedge, and the cross -slope shall not deviate more than 3/8 inches in 10 feet. Correct all irregularities exceeding these limits. Texture all approaches and tapers when requir ed by the Engineer. Length, width, and depth of cut on approaches and tapers shall be as determined by the Engineer. Match the approaches and tapers to the finished cut on the main line, and transition to the existing surface to within plus or minus 1/8 inch. When deemed necessary by the Engineer, transition private entrances to provide a smooth approach to the roadway. Unless otherwise shown on the Plans, take ownership of the cuttings and remove them from the Project. COMPENSATION

415.05 Method of Measurement

The Department will measure Cold Planing of Bituminous Pavement by the quantity of material removed in tons or cubic yards, or by the square yard of planed pavement. The method of measurement will depend upon the pay item designate d in the proposal. Where payment is by the square yard, the Department will measure the pavement acceptably planed by the square yard in accordance with 109. 415.06 384 Unless otherwise specified, the Department will not measure water u sed to control dust for separate payment but will consider it incidental to the planing operation.

415.06 Basis of Payment

The Department will pay for the accepted quantity of Cold Planed Bituminous Pavement at the contract unit price, which payment shall be full compensation for all labor, materials, equipment, hauling, and incidentals necessary to plane the pavement, control dust, and dispose of the cuttings.

Part 5

385 PART 5 – RIGID PAVEMENT SECTION 501 – PORTLAND CEMENT CONCRETE PAVEMENT ................................ ................................ .............. 386

Part 5

386 SECTION 501 – PORTLAND CEMENT CONCRETE PAVEMENT