628SAWED PAVEMENT

New Hampshire Department of Transportation Standard Specifications – 2016 Description

1.1This work shall consist of sawing concrete pavement, bituminous pavement, or both, as shown on the plans or as ordered.

1.2This work shall consist of sawcutting grooves, routing the grooves and sealing with joint sealant at the end of the concrete

bridge deck at locations indicated on the plans or as ordered. Construction Requirements

3.1Concrete pavement or bituminous pavement to be sawed shall be accurately marked before sawing.

3.1.1 Sawed bituminous pavement for bridge, points shall be marked on curbs at the end of the concrete bridge deck to aid in locating the end of the deck after pavement placement.

3.2The equipment used to saw concrete or bituminous pavement shall be capable of sawing the pavement as shown on the plans

or as ordered and shall produce a substantially vertical and s ound face without deformation of the adjacent pavement. The use of methods other than sawing (i.e. cutting wheels, pavement breakers), which deform the pavement or leave an unsound face, will not be permitted.

3.3Contraction joints to be cut in concrete pavement shall be cut to the width and depth as shown on the plans and filled with

the type of filler shown on the plans. 3.3.1 Grooves to be cut in bridge pavement shall be cut and routed to the width and depth as shown on the plans and filled with the type of filler shown on the plans.

3.4Concrete pavement or bituminous pavement to be sawed in connection with laying pipes, roadway excavation, constructing

curb, and the like shall be sawed to a sufficient depth to permit breaking the pavement at the cut. 3.4.1 Where the pavement is found to consist of an overlay of bituminous pavement above a concrete slab, the cut shall be increased enough to score the underlying concrete so that the concrete can be broken in a reasonably uniform manner. Method of Measurement

4.1Sawed pavement of the type specified will be measured by the linear foot.

4.2Sawed pavement for the purpose of installing culverts, storm drains, catch basins, drop inlets, manholes and conduit will not

be measured for payment. Basis of Payment

5.1The accepted quantity of sawed pavement will be paid for at the Contract unit price per linear foot.

5.1.1 No separate payment will be made for filler.

5.2Sawed pavement for the purpose of installing culverts, storm drains, catch basins, drop inlets, manholes and conduit shall be

subsidiary to their respective items.

5.3Payment will be made under Item 628.3 only when bituminous concrete pavement and concrete pavement are sawed one

above the other.

Pay items and units:

628.1Sawed Concrete Pavement Linear Foot

628.2Sawed Bituminous Pavement Linear Foot

628.22Sawed Bituminous Pavement (Bridge) Linear Foot

628.3Sawed Pavement Linear Foot

New Hampshire Department of Transportation Standard Specifications – 2016

Description

This work shall consist of furnishing, placing and removing white or yellow retroreflective paint pavement markings,

preformed retroreflective tape pavement markings, retroreflective thermoplastic pavement markings at locations shown on the plans or as ordered. Materials

2.1Traffic Paint.

Traffic paint shall be prequalified for use. To prequalify a product, manufacturers shall supply a sample from each lot manufactured to the Bureau of Materials and Research for verification testing. Acceptable lots wil l be included on the Traffic Paint Batch List available at and maintained by the Bureau of Materials and Research. Final acceptance will be subject to testing of materials sample at the project. Each batch of paint delivered to the project shall be accom panied by a document issued by the supplier identifying the manufacturer, product, batch number and date of manufacture. Field sampling will be performed in accordance with NHDOT Test Procedure C1.

2.2Glass Beads.

2.2.1 Glass beads shall conform to AASHTO M 247 and shall be Type 1 with a moisture resistant coating. 2.2.1 Glass beads shall not contain more than 200 parts per million arsenic or lead. A certificate of compliance, as required by 106.04, shall be provided to the Engineer upon delivery of the material to the project. The certificate of compliance from the manufacturer shall include the process, batch or lot number(s); corresponding date(s) of manufacturer; and a statement of the actual levels of arsenic and lead.

2.3Permanent Tape.

2.3.1 Preformed retroreflective pavement marking tape for extended service life shall conform to ASTM D 4505, Retroreflectivity Level I or II, Adhesive Class 2 or 3, Skid Resistance Level A or B. Level I tape should be used when no external lighting source (i.e. overhead lighting) is present and Level II markings should be used when an external lighting source is present. The tape shall be a product listed on the Qualified Products List.

2.4Temporary Tape.

2.4.1 Retroreflective preformed pavement marking tape for limited service life shall conform to ASTM D 4592 Type I

and Type II tapes should be used when the required service life of the tape is less than three months and can be left in place due to pavement overlay or other similar activity. Type I and II tapes shall have a minimum skid resistance of 45 BPN. 2.4.1.1 Type I shall be a product listed on the Qualified Products List. Type II Tape shall be approved by the Engineer 2.4.2 Blackout pavement marking ta pe shall conform to ASTM D 4592 Type I (Removable), except that the material shall be matte black and not be retroreflective. The tape shall be a product listed on the Qualified Products List.

2.5Preformed Thermoplastic.

2.5.1 Preformed thermoplastic material shall be composed of a resin resistant to degradation by motor fuels, lubricants etc. In conjunction with aggregates, pigments, binders, and glass beads which have been factory produced as a finished product. The thermoplastic material shall conform to AASHTO M249 with the exception of the relevant differences due to the material being supplied n a preformed state such as during time and flowability tests. 2.5.2 Preformed thermoplastic material shall have factory applied surface beads in addition to the intermixed beads at a rate of 10 pounds per 100 square feet of markings. It also shall contain a minimum of thirty percent (30%) intermixed graded glass beads by weight. 2.5.3 The surface, with properly applied and embedded surface beads, shall provide a minimum resistance value of 45 PN when tested according to ASTM E 303. 2.5.4 The material shall be applied at a thickness of 80 mils.

2.6Extruded.

2.6.1 Thermoplastic material shall be homogeneously composed of pigment, filler, resins and glass beads. The pre-mix glass beads shall be uniformly distributed throughout the entire thickness of material. The material, when applied in accordance w ith the manufacturer's recommended p rocedures, shall be capable of resisting deformation by traffic. The material shall be tested in accordance with AASHTO T250 requirements.