Transverse Joints. The roller shall pass over the unprotected end of freshly placed mixture only when placing of the course is discontinued or when delivery of mixture is interrupted to the extent that unrolled material may become cold. In all cases, the edge of the previously placed course shall be cut back to expose an even, vertical surface the full thickness of the course. In continuing placement of the strip, the mechanical spreader shall be positioned on the transverse joint so that sufficient hot mixture will be spread to obtain a joint after rolling which conforms to the required density and smoothness specified herein. A string line shall be used to set pavement elevations twenty-five feet after a beginning at a transverse joint or twenty-five feet before an ending at a transverse joint.
Transverse Joints. Where the start or end of a new HMA pavement course meets existing HMA pavement, the existing pavement shall be saw cut or milled to form a transverse butt joint for the full depth of all new pavement courses. The saw cut or milling shall follow a straight line and provide a clean and sound vertical face. Material at any intermediate transverse joint resulting from suspension of placement of a new HMA pavement course shall also be saw cut and removed to provide a clean vertical face before continuing placement of the pavement course. When traffic is to be carried over any transverse joint before completion of an HMA pavement course, the Contractor shall provide a temporary tapered joint with a maximum 12:1 slope. The HMA mixture forming the taper shall be placed on heavy wrapping paper or other suitable material to serve as a bond breaker. The temporary tapered joint shall be saw cut to reveal the full depth of the pavement course and form a transverse butt joint with a clean vertical face. The temporary tapered joint material shall be completely removed before resuming placement of the HMA pavement course. It is preferred to not have any additional transverse joints and to pave each lane continuously start to finish.
Transverse Joints. Revise the fifth sentence to read: Paint the joint face with a thin coating of Class AET, Class E-6 (AASHTO SS-1 or CSS-1) or E-8 (AASHTO SS-1h or CSS-1h) emulsified asphalt instead of hot bituminous material before placing fresh mixture against the joint face, using two applications of AET emulsified asphalt. 00 - b06051 D11 Section 605 Addendum: Associated Item(s): Header: SECTION 605 Provision Body: Section 605.2(f) Other Material. Revise by adding the following: Use only cast-in-place top units in roadway pavement areas. S6081C - b06081 SECTION 608 - MOBILIZATION Addendum: Associated Item(s): Header: SECTION 608 - MOBILIZATION Provision Body:
Transverse Joints. Place the mixture as continuously as possible. Do not pass the roller over the unprotected end of the freshly laid mixture except when discontinuing the laying operation long enough to permit the mixture to become chilled. When thus interrupting the laying operation, construct a transverse joint by cutting back on the previous run to expose the full depth of the mat.
