Attachment 1 09-0076 Specs.pdf

S P E C I F I C A T I O N

FOR PROJECT

QJFV 09-0076 REPAIR SKID ROW

AT

MINOT AIR FORCE BASE, NORTH DAKOTA

PREPARED BY:

5 CES, ENGINEERING FLIGHT

MINOT AIR FORCE BASE, NORTH DAKOTA

JANUARY 2009

i

QJVF 09-0076

TABLE OF CONTENTS

DIVISION 1 - GENERAL REQUIREMENTS PAGES

01000 Special Provisions 01000-1 thru 9 01300 Submittals 01300-1 thru 6 01431 Environment Protection 01431-1 thru 4

DIVISION 2 - SITEWORK

02110 Demolition 02110-1 thru 3 02241 Graded-Crushed-Aggregate Base Course 02241-1 thru 7 02243 Drainage Layer 02243-1 thru 13 02564 North Dakota Pavements for Small Projects 02564-1 thru 9 02580 Airfield Pavement Markings 02580-1 thru 6 02595 Silicone Joint Sealing in Concrete Pavements For Roads and Airfields 02595-1 thru 5 02751 Airfields and Heavy-Duty Concrete Pavement 02751-1 thru 34 02762 Compression Joint Seals for Concrete Pavements 02762-1 thru 6

DIVISIONS 3 THRU 16 - NOT USED

01000-1

DIVISION 1 - GENERAL REQUIREMENTS

SECTION 01000

SPECIAL PROVISIONS

1. GENERAL:

1.1 DESCRIPTION OF WORK: In general, this project shall include, but is not limited to:

1.1.1 Removal and disposal off-base of existing asphalt cement concrete (ACC) and Portland cement concrete (PCC) pavement.

1.1.2 Removal of existing aggregate base.

1.1.3 Repair stabilized aggregate base course.

1.1.4 Install PCC pavement.

1.1.5 Install new PCC Joint Seal.

1.1.6 Mark airfield pavements.

1.2 LOCATION OF WORK: This work is on the Transient Parking Apron (Skid Row) at Minot Air Force Base (MAFB).

1.3 APPLICABLE PUBLICATIONS: Publications shall be of the most current date at the Invitation For Bid date.

2. PRODUCTS: The products to be used in the work under this contract are described in the other sections of these specifications.

3. EXECUTION:

3.1 TRAFFIC CONTROL: The Contractor shall provide all traffic control devices within the project limits and on all haul routes. The Contractor will be responsible for maintaining all areas of new construction until accepted by the Government. Temporary signs shall have the back and post painted to match Federal Standard 595b, color 20040. Contractor shall provide and maintain barricades in work area of type and in locations shown on the drawings.

3.2 HAULING MATERIALS: Materials will be hauled in vehicles equipped with pneumatic tires. Hauling of materials shall comply with state and local regulations, including seasonal load limitations. Truck traffic will be

01000-2 restricted to designated haul routes on base. The Contractor shall be responsible for establishing and maintaining off-base haul routes. On-base haul routes shall be maintained such that a passenger vehicle may travel safely on it at all times. Dust shall be controlled to prevent creation of a nuisance in the surrounding area. Haul routes shall be restored to existing condition upon completion of the project at no additional cost to the Government.

3.3 DRAWINGS AND SPECIFICATIONS: At least one set of drawings and specifications shall be kept at the job site by each superintendent.

3.4 WORK CONDUCT, CORRELATION, EXECUTION, ETC.:

3.4.1 Work Performance: Contractor shall conduct all work, including materials distribution in an orderly manner with minimum disturbance and inconvenience to traffic operations. Contractor shall confine and limit his personnel to only those areas required for work performance. All work shall be performed in a neat, orderly fashion, with extreme care exercised to avoid damage to all property in and around project areas. Any damage caused by the Contractor shall be replaced, repaired, or restored at no cost to the Government. Upon completion, all work and storage areas shall be cleaned of all evidence of Contractor's debris accumulations. Contractor's proposed work schedule shall be coordinated with 5 OSS/A3AA and the Contracting Officer or his designated representative 14 days prior to the start of any work. All work areas shall be barricaded properly for day and nighttime vehicular safety warning.

3.4.2 The Contractor will be required to coordinate with 5 OSS/A3AA (221 Flightline Drive) daily. The Contractor will attend a weekly meeting with the Air Force to report progress and coordinate future work. This is essential to avoid conflict with other projects that will be constructed concurrently.

3.4.3 Storage: At close of each day's operation, all excess

materials and equipment shall be moved to Contractor's staging area. If Contractor should have storage structure or equipment located on-base, it shall be removed and storage area restored to its original condition within 21 days after final inspection of this project. The Government shall not be liable for the security of any of the Contractor's equipment or material while on Minot Air Force Base.

3.5 QUALITY CONTROL: The Contractor shall provide a qualified Quality Control Inspector who is familiar with all phases of operation. This individual shall be named and qualifications stated in the Quality Control Plan. The Quality Control Inspector's sole responsibility shall be to make

01000-3 constant quality control inspections of all phases of the operation, in order to assure constant compliance with the contract specifications. A Quality Control Plan shall be submitted prior to the start of any work.

3.6 PERMITS AND WORK CLEARANCES:

3.6.1 Clearance Work Request:

3.6.1.1 Contractor shall coordinate with appropriate utility

locating agencies, including base communications cable maintenance (Item 1 through 15 of AF Form 103, Base Civil Engineering Work Clearance Request). AF Form 103 will be given to the Contractor during the pre-construction meeting.

Contractor shall complete and follow all instructions on AF Form 103 before start of work on base. A copy of AF Form 103 instructions will be available to the Contractor during the pre-construction meeting.

3.6.1.2 Before any excavation, alteration, or other

construction work is begun, the Contractor shall obtain and fully process an AF Form 103, Base Civil Engineering Work Clearance Request. The form requires extensive coordination with several base agencies, including furnishing all locations, detailed information, and sketches regarding any proposed excavation(s). Processing a separate request for each planned excavation is required; each phase of processing the form and its attachments shall be completed prior to commencing work involving that phase. The AF Form 103 shall be prominently displayed on the job site at all times for review by the Contracting Officer and/or his or her designated representative. A copy of the signed form shall be submitted to the Contracting Officer and a copy to the project inspector. Completion of the AF Form 103 includes certifying compliance with institutional controls indicated by CEAN, coordination in getting the form coordinated, and returning the form to the Environmental office when the project has been completed.

3.6.1.3 Contractor shall schedule a meeting time to meet with each utility agency at the work site to locate affected utilities.

3.6.1.4 Contractor shall maintain all marked utilities in the field once they are initially marked by each utility agency. If markings are damaged, Contractor shall request new locates and shall give the locating agency 48 hours to perform the new locates. Expenses for time and materials to perform repeat locates shall be borne by the Contractor, unless otherwise approved by the Approving Officer. Cost to do the repeat locates will be deducted from the final invoice. Cost will be calculated using the average shop rate of each agency. In cases where utilities were marked late in the year and operations had to be shut down for winter, marked utilities would still have to be maintained by the Contractor by placing stakes or transcribing the marks on a drawing. When construction resumes, Contractor shall re-mark the site and may request verification of utility locations at no

01000-4 additional cost to him. Off-base utility locates agencies might request additional cost for repeat locates.

3.6.1.5 Clearance request is not valid until signed by the

Approving Officer, block 17 of the AF Form 103. Approving Officer will not sign until all locates are marked and all utility locating agencies signatures are on the form. Excavation work shall commence within 30 days after the Approving Officer's signature; otherwise, clearance request is invalid and a new request is required. Notify Contracting Officer immediately if new utilities were installed by others and not marked after all initial locates are made.

3.6.1.6 Protection of Existing Utilities: The Contractor

shall safeguard and protect from damage all utilities encountered or uncovered during digging, excavation, and backfilling.

3.6.2 AF Form 592: When any welding, cutting, brazing or use of any open flame device is to be used, an AF Form 592 permit must be obtained from the Base Fire Department (Building 896, 320 Flightline Drive) prior to beginning such work. During such work, a fully charged and operable fire extinguisher, appropriate for the task, shall be provided by the Contractor.

3.6.3 Flightline Driving: The Contractor is required to schedule a Flightline Driver's Orientation through 5 OSS/A-3AA (701-723-2347).

3.7 FIELD ENGINEERING: The Contractor shall provide field engineering services; establish grades, lines, and levels by use of recognized engineering survey practices.

3.8 CLEAN-UP: The Contractor will be required to maintain the project site and staging area in a clean, orderly manner. Each section of airfield pavement shall be cleaned with a vacuum sweeper (suitable for airfield pavement cleaning) prior to being opened to aircraft. Debris that may result in foreign object damage shall be removed. Asphalt-surfaced haul routes on-base shall be continuously cleaned by the Contractor. Contractor shall provide a vacuum sweeper at the project site at all times.

3.9 DEWATERING: The Contractor should anticipate ground water when excavating. When water is encountered, the Contractor shall be responsible for dewatering the site.

3.10 SAFETY:

3.10.1 Safety Requirements: Contractor will comply with all

OSHA/NEC requirements and MAFB Instruction 32-2001, Responsibilities of Base Personnel to Eliminate or Control Fire Hazards. Contractor will notify Fire Department prior to project start.

01000-5

3.10.2 Radioactive Sources: The Contractor shall submit to the Contracting Officer the dates the radioactive sources will be on base and the Nuclear Regulatory Commission license shall be submitted in accordance with Section 01300: SUBMITTALS.

3.10.3 Hazardous Waste: Any hazardous waste/material used or

generated by the Contractor shall be come the property of the Contractor. The use, generation, and disposal of all hazardous waste/material will be the responsibility of the Contractor and shall be handled in accordance with all federal and state hazardous waste and toxic substances control regulations.

3.10.4 Hazardous Materials: Contractor shall submit, prior to beginning work, Material Safety Data Sheets (MSDS's) expected to be used during contract performance. Hazardous material shall be defined in the latest version of Federal Standard No. 313.

3.11 AIRCRAFT TIE DOWNS: Aircraft tie downs are to be installed in new pavement as indicated on the drawings. Certification of the suitability of the anchors to be used for airfield applications will be submitted to the Contracting Officer in accordance with Section 01300: SUBMITTALS.

3.12 UTILITIES: Water and electricity required by the Contractor for the completion of the contract shall be provided by the Government at no cost to the Contractor.

3.13 GOVERNMENT-CAUSED DELAYS:

3.13.1 Unscheduled Work Delays: In event of a missile movement or required generation, the Contractor will be required to vacate the area of all personnel, equipment, and materials for an indefinite period. The Contractor shall bid an hourly rate for these delays. The on-site supervisor shall notify the Contract Administrator within 24 hours of the delay.

3.13.2 Scheduled Work Delays: The Contractor will not be allowed to work on the airfield from 15 July 09 to 20 July 09. This is the weekend of the Northern Neighbor’s Day Air Show.

3.14 WINTER EXCLUSION: The winter exclusion shall be from 1 November through 30 April. The work zones shall be surfaced with new or existing pavement and open to aircraft traffic during the winter exclusion.

3.15 ROAD CLOSURES: The Contractor shall notify the MAFB Fire Department and Contracting Officer of any road closure at least 1 hour prior to closure and advise the Fire Department when the road is reopened.

3.16 SECURITY REQUIREMENTS:

01000-6

3.16.1 Base Regulations: All activities of the Contractor and his employees shall be conducted in strict accordance with Minot AFB Security Regulations. Copies of these regulations will be furnished to the Contractor upon request.

3.17 PERFORMANCE OF WORK: The work in this contract shall be divided into three phases.

3.17.1 Phase I: Phase I shall include preparatory work which does not require access to the apron area. The work will include but not be limited to mobilization, scheduling, stockpiling of materials, submittal of materials data and construction methods, and any other off-site work.

3.17.2 Phase II: Phase II shall include all on-site construction activities. The work shall not begin prior to Contracting Officer approval.

3.17.2.1 The Contractor shall request a final inspection

for each work zone with the Contracting Officer three days prior to the pavement being opened to aircraft. The final inspection will be accomplished between the hours of 7:30 a.m. and 4:30 p.m., Monday thru Friday.

3.17.2.2 Work Schedule: Working hours for the Contractor

will be between the hours of 7:30 A.M. and 4:30 P.M., excluding Sundays and federal holidays. If the Contractor desires to work during periods other than above, additional Government inspection forces may be required. The Contractor must make his/her request to the Contracting Officer 3 days in advance of his/her intention to work during other periods to allow assignment of additional inspection forces. If such force is reasonably available, the Contracting Officer may authorize the Contractor to perform work during periods other than normal duty hours/days. However, if inspectors are required to perform in excess of their normal duty hours/days solely for the benefit of the Contractor, the actual cost of inspection at overtime rates will be charged to the Contractor. These adjustments to the contract price may be made periodically as directed by the Contracting Officer.

3.17.3 Phase III: Phase III shall include demobilization, cleanup of storage area, and final inspection.

3.18 AS-BUILT DRAWINGS: The Contractor shall maintain a set of red-lined full scale, as-built construction drawings marked-up to fully indicate as-built conditions. These drawings shall be maintained in a current condition at all times until completion of the work and shall be available for review by Government personnel at all times. The location as dimensioned from permanent features, general description, type of material, and approximate depth below finished grade of all new and existing exterior underground utilities encountered shall be indicated. All variations from the contract drawings for

01000-7 the required coordination between trades, shall be indicated. These variations shall be shown in the same general detail utilized in the initial contract drawings. As-built construction drawings shall be furnished to the Contracting Officer for use during the final inspection. The as-built drawings shall be submitted to the Contracting Officer in accordance with Section 01300: SUBMITTALS.

3.19 EMERGENCY VEHICLE ACCESS: An access route that is 12 feet wide shall be clear at all times to allow emergency vehicles through the work site.

3.20 CONTRACTOR ACCESS TO THE BASE: All materials, equipment, and personnel entering and leaving the Base shall use the gate designated by the Contracting Officer at the time of construction. Schedules will be coordinated with 5 SFS at the weekly meetings.

3.21 CONTRACTOR STAGING AREA: A Contractor staging area will be located as noted on the drawings.

3.22 OPERATIONS ON THE AIRFIELD: The performance of the work will be in the controlled zones of the airfield. ALL access to or through the airfield area shall be coordinated with the Contracting Officer and with the Chief of Airfield Management. The control tower and the Chief of Airfield Management shall be verbally informed when the work is complete and all equipment, labor, and materials have been removed from the airfield by the Contractor. The Chief of Airfield Management shall conduct an apron inspection and visually ensure that the Contractor has removed all tools, equipment, employees, and debris from the apron before opening the apron to traffic.

3.23 RECYCLING/REUSE OF EXCESS MATERIALS AND CONSTRUCTION AND DEMOLITION

(C&D) DEBRIS: The Contractor shall reuse/recycle excess materials and Construction and Demolition (C&D) debris to the maximum extent possible.

C&D debris are those excess/residue materials resulting from construction or demolition activity that would normally be discarded to a landfill.

C&D debris includes but is not limited to soil, rock, vegetation, concrete, asphalt, and building materials such as window, wood, metal, and roofing materials. The Contractor shall recycle C&D debris and excess materials, if determined to be economical. All C&D debris resulting from demolition shall become the property of the Contractor unless specified otherwise or as determined by the Contracting Officer.

3.23.1 Materials not to be returned to the Government and all Contractor-generated rubbish, if not recycled, shall be disposed of by the Contractor off-base at his own expense, and in compliance with applicable environmental codes and regulations of governing authorities.

3.23.2 Reporting Tonnage of C&D Debris: Contractor shall track and report by month the tonnage of C&D debris in two categories:

01000-8

3.23.2.1 Tons of C&D that is or will be recycled or reused.

3.23.2.2 Tons of C&D that is disposed in a landfill.

The C&D recycled/disposed tonnage report shall consist of a written memo with the tonnage of each category (recycled and disposed tonnage) submitted to 5 CES/CEAN through the Contracting Officer. Submit C&D recycled and disposed tonnage report monthly until the project is completed.

END OF SECTION

01300-1

SECTION 01300

SUBMITTALS

1.1 PROCEDURES:

1.1.1 The Contractor shall be required to submit items listed in the Submittal Schedule at the end of this section to the Contracting Officer for approval.

1.1.2 Transmit each item under AF 3000, Material Approval Submittal form. Identify contract number, project number, and Contractor. Identify section and paragraph reference for each item submitted with the AF 3000.

Submit five (5) copies unless otherwise required elsewhere in the specification.

1.1.3 Unless specifically stated otherwise elsewhere in this

specification, each submittal shall be approved by the Contracting Officer prior to incorporation of materials into the work.

1.1.4 Approvals of submittals which do not conform to the contract shall not be construed as a change to the contract.

1.1.5 The Contractor shall fill in the "Required Submission Date" on the AF Form 66s with the date he plans on submitting the submittals to the Government. A copy of the AF Form 66s with the required submission date filled in shall be submitted to the Contracting Officer for use by the contract administrator. Submit in accordance with Section 01300.

1.2 MANUFACTURER'S DATA AND SAMPLES: For the following types of submittals when a specific product of a specific manufacturer is identified (by product number or style) and the Contractor does not desire to propose an alternate product as an equal, where an equal is allowed, a detailed submittal will not be required. The Contractor shall submit on an AF Form 3000 a list of submittals for which the specified products will be used. Submit in accordance with procedures identified in 1.1 above.

1.2.1 Product Data: Submit complete manufacturer's literature which describes all salient characteristics identified as requirements in the specification. Literature which is not specific to the proposed product shall be marked to indicate clearly which item is being proposed for use in this contract.

01300-2

1.2.2 Manufacturer's Certification: Submit a statement from the product manufacturer that proposed products meet the specified standards and other salient characteristics identified as requirements in the specification.

1.2.3 Installation Instructions: Submit manufacturer's printed instructions for delivery, storage, and installation. Information shall include temperature restrictions and any other environmental limitations as well as substrate preparation requirements if any exist.

1.3 SHOP DRAWINGS: Drawings shall illustrate how the specified materials are integrated into the work as a whole. Adjacent materials which affect the complete installation of the specified products shall be shown and identified.

Deviations from Contract drawings shall be clearly identified and reason for deviation clearly explained.

1.4 TEST DATA: Test results shall be dated and signed by the agency performing the test.

1.5 WARRANTY: Submit detailed warranty information which identifies specifically items covered as well as exclusions from the warranty and the warranty period. All copies shall be dated and signed by an authorized officer of the company. The officer's name and title shall be typed on the warranty adjacent to the signature.

1.6 OPERATION/MAINTENANCE INSTRUCTIONS: Submit manufacturer's published instructions.

1.7 MISCELLANEOUS SUBMITTALS: Submittals which are none of the above types shall meet the specific requirements identified in the referenced paragraph of the Specification Section identified in the schedule.

1.8 SUBMITTAL SCHEDULE: The following is a list of required submittals for this Contract.

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END OF SECTION

AF

F or m

01431-1

SECTION 01431

ENVIRONMENT PROTECTION

1.1 The Contractor shall perform all work in such manner as to minimize the polluting of air, water, or land, and shall, within reasonable limits, control noise and the disposal of solid waste materials, as well as other pollutants.

1.2 IMPLEMENTATION: Within 20 calendar days after Notice to Proceed and prior to commencement of the work at the site, the Contractor shall:

1.2.1 Detail his proposal for implementing the requirements for environmental pollution control specified herein.

2. PRODUCTS: (Not Used)

3. EXECUTION:

3.1 PRECONSTRUCTION SURVEY: Prior to start of any on-site construction activities, the Contractor shall make a condition survey after which the Contractor shall record on a layout plan the condition of trees, shrubs and grassed areas immediately adjacent to the site of the work and adjacent to his assigned storage area and access route as applicable.

3.2 PROTECTION OF LAND AREAS: Except for work areas, storage areas, or access routes specifically assigned for the use of the Contractor under this contract, the land areas outside the limits of permanent work performed under this contract shall be preserved in their present condition. The Contractor shall confine his construction activities to areas defined for work on the plans or specifically assigned for his use. Storage and related areas and access routes required temporarily by the Contractor in the performance of the work will be assigned by the Contracting Officer.

3.3 PROTECTION OF WATER RESOURCES: The Contractor shall control the disposal of fuels, oils, bitumens, calcium chloride, acids or harmful materials, both on and off the Government premises and shall comply with applicable federal, state, county and municipal laws concerning pollution of rivers, streams, and wetlands while performing work under this contract.

Special measures shall be taken to prevent chemicals, fuels, oils, greases, bituminous materials, herbicides, and insecticides from entering public waters. Water used in on-site material processing, concrete curing, 01431-2 foundation and concrete cleanup, and other waste waters shall not be allowed to reenter a stream if an increase in the turbidity of the stream could result therefrom.

3.3.1 Disposal of water generated during construction dewatering.

3.3.1.1 Dewatering of Groundwater: For temporary dewatering

of groundwater encountered during construction, the Contractor shall land apply all water generated in accordance with Paragraph: LAND APPLICATION.

3.3.1.1.1 Land Application: Land application shall

follow state requirements; however, no permit will be necessary. "Land application" implies that the Contractor shall discharge water at a rate which allows the water to percolate into the soil. No sheeting action, soil erosion, discharge into storm sewers, defined drainage areas, or discharge into the "waters of the State" shall occur. The Contractor shall contact the State of North Dakota, Division of Water Quality and Permit Program, to discuss the water quality parameters for chemical contaminants (such as chlorine), oil, grease, and total suspended solids and shall ensure that all water intended for land application will meet the state requirements.

3.4 WASTE DISPOSAL: As part of his proposed implementation under paragraph 1.2, and prior to on-site construction, the Contractor shall submit a description of his scheme for handling and disposing of all waste resulting from the work under this contract. If any waste is dumped in unauthorized areas, the Contractor shall remove the waste and restore the area to the condition of the adjacent undisturbed areas. Where directed, soil which is contaminated by the Contractor shall be excavated, disposed of as approved by the Contracting Officer, and replaced with suitable fill material, all at the expense of the Contractor.

3.5 BURNING: Burning shall be prohibited on the Government premises.

3.6 DUST CONTROL: The Contractor shall maintain all excavations, embankments, stockpiles, access roads, plant sites, waste areas, borrow areas, and all other work areas free from excess dust to such reasonable degree as to avoid causing a hazard or nuisance. Temporary methods consisting of sprinkling, chemical treatment, light bituminous treatment or similar methods will be permitted to control dust. Dust control shall be performed as the work proceeds and whenever a dust nuisance or hazard occurs.

3.7 EROSION AND SEDIMENT CONTROL: The Contractor shall be responsible for providing erosion and sediment control measures in accordance with local, state, and federal regulations. The erosion and sediment controls selected and maintained by the Contractor shall be such that local, state, and federal water quality standards are not violated as a result of the Contractor's construction activities. The area of bare soil exposed at any one time by

01431-3 construction operations should be held to a minimum. For areas subject to erosion including, but not limited to, steep slopes, soils spreading areas, and stockpile areas, the Contractor shall disturb as little vegetation as possible, minimize the period of time that the soil is exposed, prevent surface water runoff from flowing across disturbed areas, stabilize disturbed soils as soon as possible, and provide adequate drainage for the increased runoff. Sedimentation/erosion control features may include, but not be limited to, vegetation cover, stream bank stabilization, slope stabilization, construction of terraces, interceptor channels, sediment traps, inlet and outfall protection, diversion channels, and sedimentation basins. Runoff management practices should be employed in areas where the potential for storm water contamination exists that can not be addressed by a prevention or source reduction measure. Runoff management procedures may include vegetative swales, reuse of collected storm water, infiltration devices, and detention/sedimentation basins. Any erosion and sediment control measures which are damaged or found to be ineffective shall be remedied by the Contractor at no additional cost to the Government. Any areas damaged by erosion shall be repaired by the Contractor at no additional cost to the Government.

3.8 CORRECTIVE ACTION: The Contractor shall, upon receipt of a notice in writing of any noncompliance with the foregoing provisions, take immediate corrective action. If the Contractor fails or refuses to comply promptly, the Contracting Officer may issue an order stopping all or part of the work until satisfactory corrective action has been taken. No part of the time lost due to any such stop orders shall be made the subject of a claim for extension of time or for excess costs of damages by the Contractor unless it is later determined that the Contractor was in compliance.

3.9 POST-CONSTRUCTION CLEANUP OR OBLITERATION: The Contractor shall, unless otherwise instructed in writing by the Contracting Officer, obliterate all signs of temporary construction facilities such as haul roads, work areas, structures, foundations of temporary structures, stockpiles of excess or waste materials, and other vestiges of construction prior to final acceptance of the work. The disturbed areas shall be graded and filled and the entire area seeded.

3.10 SPILL PREVENTION AND RESPONSE PLAN: The Contractor shall include a Spill Prevention and Response Plan in the Implementation Proposal. The plan shall describe the Contractor's procedures for preventing and responding to spills of hazardous materials.

01431-4

3.11 ARCHEOLOGICAL PRESERVATION: Should the Contractor uncover any skeletons, artifacts or other archeological remains during the course of excavation, the work shall be stopped and the Contracting Officer notified immediately.

02110-1

DIVISION 2 - SITEWORK

SECTION 02110

DEMOLITION

1.1 GENERAL REQUIREMENTS: The work includes demolition or removal of all construction indicated or specified. All materials resulting from demolition work, except as indicated or specified otherwise, shall become the property of the Contractor and shall be removed from the base daily. Rubbish and debris shall be removed from the base daily.

1.2 SUBMITTALS: The procedures proposed for the accomplishment of salvage and demolition work shall be submitted for approval. The procedures shall provide for safe conduct of the work, careful removal and disposition of materials specified to be salvaged, protection of property which is to remain undisturbed, and coordination with other work in progress. The procedures shall include a detailed description of the methods and equipment to be used for each operation, and sequence of appropriate documentation.

1.3 USE OF EXPLOSIVES: Use of explosives will not be permitted.

2. PRODUCTS: (Not Used)

3. EXECUTION:

3.1 PROTECTION:

3.1.1 Protection of Existing Work: Before beginning any cutting or demolition work, the Contractor shall carefully survey the existing conditions and examine the drawings and specifications to determine the extent of the work. The Contractor shall take all necessary precautions to ensure against damage to existing work that is to remain in place, to be reused, or to remain the property of the Government. Any damage to such work shall be repaired or replaced as approved by the Contracting Officer at no additional cost to the Government. The Contractor shall carefully coordinate the work of this Section with all other work.

3.1.2 Utilities: When utility lines are encountered that are not identified on AF Form 103, or location made known to the Contractor, work shall stop, and the Contracting Officer shall be notified. Any damage done to the existing utilities shall be repaired or replaced by the Contractor at no cost to the Government.

02110-2

3.2 PAVEMENTS:

3.2.1 Existing pavements designated for removal shall be initiated with a full-depth saw cut at the pavement edge or joint to remain and then they shall be removed to the limits and depths indicated on the drawings.

3.2.2 Bituminous Pavements: Existing bituminous pavements shall be completely removed as necessary for construction of new paving as shown on the drawings. Edges of flexible pavement to be matched to new paving shall be cut smooth with a saw. Any damage occurring to surfaces of pavements to remain due to the Contractor's operations, shall be repaired as directed at the expense of the Contractor. Removal shall be by approved methods and the materials removed shall be disposed of off base.

3.3 DUST CONTROL: The amount of dust resulting from demolition shall be controlled to prevent the spread of dust to occupied portions of the airfield and to avoid creation of a nuisance in the surrounding area. Use of water will not be permitted when it will result in, or create, hazardous or objectionable conditions such as ice, flooding, and pollution.

3.4 DISPOSITION OF MATERIAL:

3.4.1 Title to Materials: Title to all materials and equipment to be demolished, excepting materials to be reused, is vested in the Contractor upon receipt of notice to proceed. The Government will not be responsible for the condition, loss or damage to such property after notice to proceed.

3.4.2 Material for Contractor Salvage: Salvage materials shall be removed from the base daily. Material for Salvage shall not be sold on the site.

3.4.3 Unsalvageable Materials: Concrete, masonry, and other

noncombustible materials shall be disposed of off base at a location to be determined by the Contractor.

3.4.4 The use of burning at the project site for the disposal of refuse and debris will not be permitted.

3.5 CLEANUP:

3.5.1 Debris and Rubbish: Debris and rubbish shall be removed from MAFB by the Contractor daily.

3.5.2 Debris Control: Debris shall be removed and transported by the Contractor in a manner as to prevent spillage on streets or adjacent areas. Material that is spilled shall be cleaned up immediately.

02110-3

3.5.3 Regulations: Federal, state, and local regulations regarding hauling and disposal shall apply.

3.6 TEST SECTIONS: The Contractor shall demonstrate his method of removal upon initiation of the work. Any pavement beyond the limits of the removal area that is damaged by the Contractor's removal operations shall be removed and replaced at the Contractor's expense, using methods and materials specified under this contract.

02241-1

SECTION 02241

GRADED-CRUSHED-AGGREGATE BASE COURSE

1.1 APPLICABLE PUBLICATIONS: The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

1.1.1 American Society For Testing and Materials (ASTM) Standards:

C 29 Unit Weight and Voids in Aggregate

C 88 Soundness of Aggregate by Use of Sodium Sulfate or Magnesium Sulfate

C 117 Materials Finer than 75-um (No. 200) Sieve in Mineral Aggregates by Washing

C 131 Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

C 136 Sieve Analysis of Fine and Coarse Aggregates

D 75 Sampling Aggregates

D 422 Particle Size Analysis

D 1556 Density of Soil In-Place by the Sand Cone Method

D 1557 Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 10-lb (4.54 kg) Rammer and 18-in (457 mm) Drop

D 2167 Density and Unit Weight of Soil in Place by the Rubber Balloon Method

D 2487 Classification of Soils for Engineering Purposes

02241-2

D 2922 Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth)

D 3017 Moisture Content of Soil and Soil- Aggregate In-Place by Nuclear Methods (Shallow Depth)

D 4318 Liquid Limit, Plastic Limit, and Plasticity Index of Soils

E 548 Preparation of Criteria for Use in the Evaluation of Testing Laboratories and Inspection Bodies

D 422 Particle Size Analysis

1.2 DEGREE OF COMPACTION: Degree of compaction required under paragraph 3.9: COMPACTION is expressed as a percentage of the maximum density obtained by the test procedure in ASTM D1557, Method D. This will be abbreviated hereinafter as percent of laboratory maximum density.

1.3 MATERIALS: Aggregates shall consist of crushed stone, crushed gravel, angular sand or other approved sound, durable materials processed and blended or naturally combined. Aggregates shall be durable and sound, free from foreign coatings. The Contractor shall obtain materials that meet the requirements specified herein and that can be constructed to meet the gradation, compaction and smoothness requirements specified herein after placement. The material retained on a No. 4 sieve shall be known as course aggregate; that passing the No. 4 sieve shall be known as fine aggregate.

1.3.1 Coarse aggregate conforming to the requirements specified above shall have a percentage of wear not to exceed 40 percent after 500 revolutions. When subjected to five cycles of the soundness test, in accordance with ASTM Standard C 88 using magnesium sulfate, the loss in weight of coarse aggregate shall not exceed 18 percent. Coarse aggregate shall consist of crushed rock or crushed gravel having angular fragments uniform in density and quality. The amount of flat and elongated particles shall not exceed 20 percent. A flat particle is one having a ratio of width to thickness greater than three, and an elongated particle is one having a ratio of length to width greater than three. Crushed gravel shall conform to the requirements of paragraph 1.3.1.1, CRUSHED GRAVEL or paragraph 1.3.1.2, COARSE AGGREGATE below. The Contractor shall select the requirements the crushed gravel shall conform to and the requirements shall be mandatory for the entire job.

02241-3

1.3.1.1 Crushed gravel shall be manufactured from gravel

particles 50 percent of which by weight are retained on the maximum size sieve listed in paragraph 1.3.3: GRADATION, below.

1.3.1.2 Coarse aggregate retained on each sieve specified

shall contain at least 50 percent by weight of crushed pieces having two or more freshly fractured faces with the area of each face being at least equal to 75 percent of the smallest midsection area of the piece. When two fractures are adjacent, the angle between the planes of the fractures must be at least 30 degrees to count as two fractured faces.

1.3.2 Fine aggregate shall consist of screening, angular sand or other finely divided mineral matter processed or naturally combined with the coarse aggregate. The portion of any component, or of the completed course passing the No. 40 sieve shall be either nonplastic or shall have a liquid limit not greater than 25 and a plasticity index not greater than five.

1.3.3 Gradation requirements shall apply to the completed base. The maximum size of aggregate shall be not over 1-1/2 inches and the material shall be well graded within the limits specified below. The material furnished for the project shall conform to the designated gradations after placement and compaction.

Percentage by Weight Passing Square-Mesh Sieve Sieve Designation Gradation No. 1 2 inches ---- 1-1/2 inch 100 1 inch 60-100 1/2 inch 30-65 No. 4 20-50 No. 10 15-40 No. 40 5-25 No. 200 0-10

0.02 mm 3 max

The above gradation represents the extreme limits which shall determine suitability of aggregate for use from all sources of supply. The aggregate used in the work shall have a gradation within the limits designated in the table, and shall not vary from the low limit on one sieve to the high limit on the adjacent sieve or vice versa, but shall be well graded from coarse to fine.

1.4 APPROVAL, SAMPLING AND TESTING: Sampling and testing shall be the responsibility of the Contractor and shall be performed at no additional cost to the Government. Sampling and testing shall be performed by an independent commercial testing laboratory. Tests shall be performed at the frequency

02241-4 specified hereinafter. Copies of test results shall be furnished to the Contracting Officer as soon as tests are performed and in every case prior to placing subsequent construction over completed base course.

1.4.1 General: The Contractor shall perform initial sampling and testing sufficiently in advance to not delay the work. The Contractor shall control his operations during production and placement of material, so that materials in the completed course will meet specified requirements. The Government may perform verification tests for final approval of materials in the completed course.

1.4.2 Samples: All samples including those required and used by the Contractor for control of his operations, shall be representative of materials being placed. In addition, samples shall be taken from the completed and compacted course. All samples shall be taken in conformance with ASTM D 75.

1.4.3 Tests: The following tests shall be performed:

1.4.3.1 Sieve Analyses shall be made in accordance with

ASTM C 117, C 136 and D 422. Sieves shall conform to ASTM E 11.

1.4.3.2 Wear (L.A. Abrasion) Test shall be made in

conformance with ASTM C 131.

1.4.3.3 Soundness shall be determined in accordance with

ASTM C 88.

1.4.3.4 Liquid-Limit and Plasticity-Index shall be determined in accordance with ASTM D 4318.

1.4.3.5 Density Tests: Density shall be measured in the

field in accordance with ASTM D 1556, ASTM D 2167, or ASTM D 2922. For the method presented in ASTM D 1556, the base plate as shown in the drawing shall be used. For the method presented in ASTM D 2922, the calibration curves shall be checked and adjusted if necessary using only the sand cone method as described in paragraph Calibration of the ASTM publication. Tests performed in accordance with ASTM D 2922 result in a wet unit weight of soil and when using this method, ASTM D 3017 shall be used to determine the moisture content of the soil. The calibration curves furnished with the moisture gauges shall also be checked along with density calibration checks as described in ASTM D 3017. The calibration checks of both the density and moisture gauges shall be made by the prepared containers of material method, as described in paragraph Calibration of ASTM D 2922, on each different type of material being tested at the beginning of a job and at intervals as directed.

1.4.3.6 Crushed Particles shall be determined by visual

examination and measurement.

02241-5

1.4.4 Testing Frequency:

1.4.4.1 Initial Tests: One of each of the following tests

shall be performed on the proposed material prior to commencing construction to demonstrate that the proposed material will meet all specified requirements. Results shall be submitted to the Contracting Officer for approval.

Sieve Analysis Including 0.02mm L.A. Abrasion Soundness Loss Particle Shape Crushed Particles Liquid Limit & Plasticity Index Moisture - Density Relationship

1.4.4.2 In-Place Tests: One of each of the following tests

shall be performed on the repaired base course. One tests shall be taken for each 1000 square yards of base under PCC slabs. At least one field density test shall be performed for each day's placement. Results shall be submitted to the Contracting Officer for approval.

Field Density and Moisture

2. PRODUCTS: (Not Used)

3. EXECUTION:

3.1 EQUIPMENT: All plant, equipment, tools and machines used in the performance of the work shall be in satisfactory working condition at all times. The equipment shall be adequate and shall have the capability of producing the required compaction, meeting grade controls, thickness control, and smoothness requirements as set forth herein.

3.2 OPERATION OF AGGREGATE SOURCES: All work involved in the clearing, stripping and excavating in opening or operation of aggregate sources shall be the responsibility of the Contractor. There are no sources on Government land. Aggregate sources on private lands shall be conditioned in agreement with local laws and authorities.

3.3 STOCKPILING MATERIAL: Prior to stockpiling of material, storage sites shall be cleared and leveled by the Contractor. Aggregates shall be stockpiled on designated cleared and leveled areas so as to prevent segregation. Materials obtained from different sources shall be stockpiled separately.

02241-6

3.4 WEATHER LIMITATIONS: Courses shall be constructed only when atmospheric temperature is above 40 degrees F. Areas of completed base course that are damaged by freezing, rainfall, or other weather conditions shall be corrected to meet specified requirements.

3.5 PREPARATION OF EXISTING BASE COURSE: Prior to constructing the crushed aggregate base course, the previously constructed base course shall be cleaned of all foreign substances. The existing base course shall meet the specified compaction and surface tolerances. Ruts or soft, yielding spots in the existing base course, areas having inadequate compaction, and deviations of the surface from requirements set forth therein shall be corrected by loosening and removing soft or unsatisfactory material and by adding approved material, reshaping to line and grade, and recompacting to specified density requirements. For cohesionless-underlying-courses containing sands or gravels as defined in ASTM D 2487, the surface shall be stabilized prior to placement of the graded-crushed-aggregate base course. Stabilization shall be accomplished by mixing graded-crushed-aggregate base material into the underlying course and compacting by approved methods. The stabilized material shall be considered as part of the underlying course and shall meet all requirements of the underlying course. The existing base course shall not be disturbed by traffic or other operations and shall be maintained by the Contractor in a satisfactory condition until the new base course is placed.

3.6 GRADE CONTROL: During construction, the lines and grades including crown and cross slope indicated shall be maintained by means of line and grade stakes placed by the Contractor.

3.7 MIXING MATERIALS: The coarse and fine aggregates shall be mixed in a stationary plant, or in a traveling plant or bucket loader on an approved paved working area. The Contractor shall make such adjustments in mixing procedures or in equipment as may be directed to obtain true grades, to minimize segregation or degradation, to obtain the required water content, and to ensure a satisfactory base course meeting all requirements of this specification.

3.8 PLACING MATERIALS: The mixed material shall be placed on the prepared existing base in layers of uniform thickness. When a compacted layer six-inches or less in thickness is required, the material shall be placed in a single layer.