3. Specifications - Section 805.pdf

805 MOBILIZATION / EQUIPMENT MOVING (10/16)

1. DESCRIPTION

This Section consists of one or more mobilizations of personnel, equipment, supplies, and incidentals to the project site, or sites listed in the Schedule of Items.

2. REQUIREMENT

a. Make equipment available for inspection before it is used on National Forest System lands.

b. Moving is complete, when the contractor has moved from the present work site to the ordered work site and returned to the previous location.

c. Equipment will be clean and weed free before it arrives on National Forest System lands.

3. LOCATION OF WORK

As specified on roads listed on the Road Listing, Shown on the Plans, or as ordered by the

Contracting Officer.

4. MEASUREMENT

Measurement under this Section will be made by the total number of units for each item listed in the Schedule of Items completed and accepted.

Mile: work activity will be measured along the shortest feasible route to the nearest one (1) mile, from the starting location of the move, to the ordered work site.

5. PAYMENT

a. The accepted quantities will be paid at the contract price per unit of measurement for the

Section 805 pay items listed in the schedule of items. Mobilization is complete when all equipment, personnel, and materials are moved to the project site and work has been started. Payment will be full compensation for the work prescribed in this Section.

Mobilization is incidental unless ordered for a specific project at a specific time.

b. Payment will be made under:

Pay Item Description Pay Unit

805 (1) Mobilization Mile

814 ASPHALT PAVEMENT PATCHING (10/16)

This work consists of patching potholes and skin patching of asphalt surfaces. The work includes preparing the area to be patched, furnishing and placing all necessary materials and work. All areas to be patched will be marked by the Government.

2. MATERIALS

Materials used for asphalt patching shall conform to the requirements in Sections 892 and

893. Bituminous mixture material shall conform to requirements of Special Project

Specifications.

3. MAINTENANCE REQUIREMENTS

a. Potholes

1) Existing materials shall be removed to a minimum of two (2) inches or as necessary to reach firm support, but limited to maximum twelve (12) inch depth. If firm support for a patch is not available, the hole shall be barricaded and the

Government shall be notified. Prior to Contractor placing any materials, Government will determine corrections to be made.

2) The edges of the prepared hole shall be extended to form a vertical face in un-fractured asphalt surfacing. The prepared hole shall generally be round or rectangular in shape and cleaned of all loose material. The bottom and sides shall be sprayed with an emulsified asphalt.

3) Prepared potholes shall be patched or barricaded immediately.

4) The bituminous mixture shall be placed in layers not exceeding four (4) inches. Each layer shall be compacted thoroughly with hand tampers, mechanical tampers, or rollers.

5) Finished surface shall, as a minimum, be compacted with a tamper or an 8- to 10-ton steel roller or comparable vibratory roller. Upon completion, the compacted pothole patch shall be flush with or not more than one quarter (1/4) inch above the level of the adjacent pavement.

b. Disposal

All materials removed from pothole and skin patching operations shall be removed to a disposal site designated by the COR or shown on the drawings.

4. MEASUREMENT

a. Bituminous Mixture

1) Hot and cold bituminous mixture acceptable placed will be measured by the ton.

Bituminous materials incorporated into the mixture will be incidental to the item.

2) Ton Measure - The quantity of mixture will be the number of tons in the accepted work. Any material rejected in the field as not meeting specifications shall be deducted based on estimated quantities. Rejected quantities shall be reconciled between the Government and the Contractor each day. If not reconciled each day, the Government's figures will apply.

b. The following work is incidental:

1) Cleaning of surfaces.

2) Haul and compaction of bituminous mixture.

3) Material removal and disposal.

4) Emulsified asphalt used on existing surfaces will be measured by the gallon prior to dilution. Dilution materials shall be considered incidental.

5. PAYMENT

a. The accepted quantities will be paid for at the contract unit price shown in the Schedule of Items.

b. Payment will be made under:

Pay Item Description Pay Unit

814 (1) Pothole Patching Ton

814 (2) Emulsified Asphalt Gallon

818 ASPHALT CRACK CLEANING AND SEALING (10/16)

This work shall consist of cleaning and filling cracks in existing asphalt concrete surfaces that are 1/4-inch wide and wider. This work shall be performed and paid for in accordance with the following specifications.

2. EQUIPMENT

a. All methods employed in performing the work and all equipment, tools and machinery used for handling the material and executing any part of the work shall be subject to the approval of the Government before the work is started, and whenever unsatisfactory, they shall be changed or improved as required. All equipment, tools, machinery and containers must be kept clean and maintained in satisfactory condition.

b. Sealing equipment shall consist of a double boiler type machine, capable of maintaining the temperature of the material in the range of 350 to 400 degrees Fahrenheit, with continuous circulation and agitation. Material shall never be heated above 400 degrees

Fahrenheit.

3. MATERIALS

The sealing material shall comply with the requirements of ASTM D 3405-78 and AASHTO

M 301-85. The Contractor shall submit a certificate of compliance signed by the manufacturer certifying that the material meets these requirements. The certificate shall be submitted prior to the use of the material in the work.

4. MAINTENANCE REQUIREMENTS

a. Cleaning of cracks:

The cracks shall be steel wire brushed, broomed, cleaned using compressed air or pressurized water jet, or cleaned and dried using a hot lance (use of a back-pack hot air blower will not be sufficient), as shown in the Schedule of Items, in order to remove all loose material, vegetation, and other objectionable material.

b. Filling:

Filling of cracks and voids shall not commence until they are clean and dry. When the use of a hot lance is required, filling should closely follow cleaning. The cracks shall be sealed from the bottom up. The filler material shall be placed within 1/8-inch of the top of the crack. Any excess material shall be leveled flush to the surface with a "V" shaped squeegee device. The excess material will be squeegeed so as not to exceed 1 1/2-inches on each side of the crack. Excess material remaining in the squeegee at the end of the crack will be distributed over the crack in a return motion. If settlement of the filler material occurs, the cracks shall be refilled until they are again within 1/8-inch of the finished surface. No excess build-up of filler material will be permitted. Any spillage or loose material shall be removed from the surface.

c. Weather Limitations:

The filler material shall not be applied when it is raining, excessive moisture is present, or either atmospheric or pavement temperature is 45 degrees Fahrenheit and falling.

Filler material may be applied when moisture is not present and either the atmospheric or pavement temperature is 40 degrees Fahrenheit and rising.

5. MEASUREMENT

The quantity will be measured by the linear foot or pound of filler material used as shown in the Schedule of Items. When measurement by the pound is specified, the Government may require the weighing of equipment for determination of actual quantities of material used.

Payment by the pound will not include any materials wasted or not used as specified.

6. PAYMENT

a. Payment shall be made at the contract unit price for cracks repaired as specified. This payment shall be full compensation for all labor, equipment, materials, traffic control, tools and incidentals necessary to complete the work.

b. Payment will be made under:

Pay Item Description Pay Unit

818 (1) Crack Cleaning and Sealing Linear Foot

818 (2) Crack Cleaning and Sealing, Hot Lance Cleaning Only

Linear Foot

818 (3) Crack Filling Material, Commercial Source Pound