ASHE_10_1032_TecSpec100_EN.pdf

U.S. AIR FORCE

31ST FIGHTER WING

31ST CES/CENM

AVIANO AIR BASE, ITALY

Technical Specifications

Project : ASHE 10-1032 INSTALL EMERGENCY

SHOWERS/ EYEWASH ES FOR ACFT,

MX

Location : Area F, Aviano Air Base, Aviano, Italy Project Phase: Final Date: January 2015

PROJECT ASHE 10-1032

Summary:

AC1 - 1 SCOPE OF PROJECT

AC1 - 2 TECHNICAL SPECIFICATION

AC1 - 3 SUBMITTAL OF MATERIALS

AC1 - 4 CONSTRUCTION AREA SCREENING

AC1 - 5 PROJECT SIGN

AC1 - 6 JOB SITE MOBILIZATION

AC1 - 7 SAFETY

AC1 - 8 HAZMAT/HAZWASTE HOUSEKEEPING

AC1 - 9 PRESERVATION OF EXISTING CONDITIONS

AC1 - 10 WORK SITE CONDITIONS

AC1 - 11 AIRFIELD SAFETY TRAINING

AC1 - 12 PARKING

AC1 - 13 ACCESS ROUTES

AC1 - 14 TRUCKING AND ROADS

AC1 - 15 NOISE CONTROL

AC1 - 16 EXCAVATIONS

AC1 - 17 LAWN MAINTENANCE

AC1 - 18 LAWN ESTABLISHMENT

AC1 - 19 CONSTRUCTION SITE RESTORATION

AC1 - 20 PROCEDURES AND WORK PHASES

AC1 - 21 SALVAGEABLE MATERIALS

AC1 - 22 CONSTRUCTION DRAWINGS

AC1 - 23 ADDITIONAL SPECIFICATIONS

AC1 - 24 REVISED MASTER SPECIFICATIONS

AC1 - 25 ADDITIONAL NORMS AND STANDARDS

AC1 - 26 FINAL ACCEPTANCE TEST & CERTIFICATIONS

SECTION 02510 WATER DISTRIBUTION

SECTION 05500 METAL FABRICATIONS

SECTION 01101 – PROJECT SIGN

ASHE 10-1032

31 CES/CENMP

SECTION 02220 – SITE DEMOLITION

SECTION 03300 – CAST-IN-PLACE CONCRETE

SECTION 15400R - PLUMBING

AC1 - 1 SCOPE OF PROJECT

The scope of the project is to install new permanent eyewashes/showers stations in the following thirdyfour (34) facilities:

Sierra loop:

1181,1182,1183,1184,1185,1186,1188,1189,1190,1191,1192,1193,1194,1195,1196,1197, 1198.

Zulu loop: 7830,7910,7920,7930,7940,7960,7970,7980,7990,8000,8010,8020,8030,1237 Other facilities : Bldg. 1174, Bldg. 1434 (Fire Department), 10514 (South POL) All aircraft shelters will have to be connected to the main water distribution system in Area F. The project includes civil and mechanical works.

Works to be performed are shown in the contract drawings, and include but are not limited to the following items:

Civil Work

– Bituminous concrete pavement cut

– Soil excavation

– Pits placing

– Backfilling

– Bituminous concrete pavement repair

– Concrete pavement cut

– Aircraft shelters wall concrete coring

– Demolition and repair of self locking concrete blocks pavings

Mechanical Work

– Furnishing and installation of PEAD pipes

– Furnishing and installation of ball valves

– Furnishing and installation of butterfly valves

– Connection to the main water loop

– Furnishing and installation of galvanized steel pipes

– Furnishing and installation of thermal pipe insulation

– Furnishing and installation of showers/eyewash stations

Electrical Work

– Furnishing and installation of PVC pipes for electrical cable duct

– Furnishing and installation of electrical cables

– Furnishing and installation of circuit breakers

AC1 - 2 TECHNICAL SPECIFICATION

The following Sections of the Master Specifications for construction projects of the Air Base in Aviano (PN), Italy, dated November 2005 and applicable modifications, shall be applicable to the present project, together with the List of Work Items to be performed:

01100 GENERAL CONDITIONS

02231 CLEARING AND GRUBBING

02315 EXCAVATION AND FILL

02722 GRADED CRUSHED AGGREGATE BASE COURSE FOR

FLEXIBLE PAVEMENT

02741 BITUMINOUS CONCRETE PAVEMENT

02921 TURF

02935 LANDSCAPE MAINTENANCE

15080 INSULATION FOR MEHCANICAL EQUIPMENT

15400 PLUMBING

16050 BASIC ELECTRICAL MATERIALS AND METHODS

See Paragraphs AC1 - 23 and AC1 - 24 for the other applicable specifications.

AC1 - 3 SUBMITTAL OF MATERIALS

In accordance with Paragraph 2.5 of the technical specification No. 01100/R, entitled “GENERAL CONDITIONS”, the materials listed in MATERIAL SUBMITTAL SCHEDULE shall be submitted as required by the time schedule indicated, for the approval by the Contracting Officer’s Technical Representative.

The Contractor shall provide, for all the materials that will be furnished and installed, a written certification, completed with catalog data from which shall be clear the total absence of toxic-noxious materials.

The number of copies will be as required on MATERIAL SUBMITTAL SCHEDULE

AC1 - 4 CONSTRUCTION AREA SCREENING

All construction sites and material storage areas shall be securely fenced around the entire perimeter within an area defined by the Contracting Officer’s Technical Representative.

Bilingual signs, "VIETATO L'INGRESSO - LAVORI IN CORSO / WORK AREA - NO ENTRY" shall be placed at the work area entry and along each side of the fencing. Fence type, height, and screening color should also be specified by the Base Civil Engineering (BCE). Fencing shall be completely secured at top and bottom to prevent access.

Fences shall be screened with opaque screening material to prevent visibility inside the fenced area. Fences and screens shall be adequately staked and/or anchored to prevent blowing over during high wind conditions. Contractor shall not start installation of area screening until approved, in writing, by BCE. Contractor shall submit photos or samples of the screening material for approval by BCE. The Contractor shall replace or repair in a timely manner, as determined by BCE, all fences and screening sections that have damage or develop unsightly rips or holes. It is strictly forbidden to install advertisement signs and/or logos including contractor’s along the construction site fence. At the end of the work or when exterior work requires it, temporary fencing shall be removed.

Night warning lights shall be installed to illuminate the work area, from sunset to dawn.

AC1 - 5 PROJECT SIGN

The Contractor shall furnish a project sign on site in accordance with Section 01101/R.

The sign shall be made of a durable material and maintained in good condition. Lettering is to be white gloss, exterior-type enamel. The sign and posts shall be given one prime coat and two finish coats of dark brown gloss exterior enamel paint. The sign shall be erected at the designated location and shall be maintained in good condition by the Contractor until completion of the contract. The sign shall remain the property of the Contractor and shall be removed from the site upon final inspection and acceptance of the facility. Contractor identification and logo shall be allowed only on this sign and nowhere else on the exterior of the job site, with the exception of company vehicles.

There should be no signs for the purpose of advertising anywhere on the site.

Contractors shall submit sign proposal to CE for approval.

AC1 - 6 JOB SITE MOBILIZATION

The Contractor shall submit a proposal to BCE diagramming their construction site and all material storage areas in locations separate from a construction site. The Contractor shall submit this plan 14 calendar days prior to the start of construction. Material mobilization and construction execution can not begin until the plan has been approved by the base. Jobsite utility connections are the responsibility of the Contractor and shall be coordinated through BCE. Temporary overhead utility runs are prohibited. Contractor shall include a plan for supplying required utilities to their site in their proposal.

AC1 - 7 SAFETY

Contractor shall provide barricades, traffic control signs and construction safety signs that meet installation standards and comply with all applicable laws. Actual location, size and final arrangement of these items shall be discussed and approved by the BCE prior to installation. Such approved items shall be of uniform size, design and color. All cones, barricades, warning lights, temporary signs and protective devices shall conform to the current host nation requirements and the U.S. Army Corps of Engineers Safety and Health Requirements Manual EM 385-1-1.

AC1 - 8 HAZMAT/HAZWASTE HOUSEKEEPING

Prior to bringing any hazardous material onto the base, the Contractor must contact BCE to coordinate the storage and handling of all hazardous materials. Contractor is responsible for complying with all applicable environmental regulations and laws pertaining to the storage, handling, and transportation of hazardous materials and hazardous waste.

Hazardous materials: The Contractor shall identify all hazardous materials required for completion of the project.

Material Safety Data Sheets: The Contractor shall furnish English language versions of the Material Safety Data Sheets (MSDS) of hazardous materials, chemical, toxic, and noxious, that will be used in the construction work, to 31st CES/CEV for approval and coordination through SEG and SGPB. The Contracting Officer will provide sample of the MSDS form to the Contractor.

Hazardous Waste Management Plan: The Contractor shall provide an hazardous waste management plan.

Chemicals Materials: The Contractor shall ensure that hazardous materials utilized during construction do not contain any chemicals listed as EPA 17 toxins. A list of the EPA 17 toxins con be obtained from the 31st CES/CEV office.

Liquid, flammable or toxic substances: Any liquid, flammable, or any other toxic substances that are required for the execution of the works, shall be kept in properly labeled, special containers. Relative data (quantity, characteristics and location) shall be transmitted to 31st CES/CEF or 31st CES/CEV through the Director of Works.

AC1 - 9 PRESERVATION OF EXISTING CONDITIONS

The Contractor shall preserve and protect all structures, equipment, and vegetation (such as trees, shrubs, grass) on or adjacent to the work site, which are not to be removed and which do not unreasonably interfere with the work required under this contract. The Contractor shall only remove trees when specifically authorized by BCE to do so, and shall avoid damaging vegetation that will remain in place. If any limbs or branches of trees are broken during contract performance, or by the careless operation of equipment, or by workmen, the Contractor shall trim those limbs or branches with a clean cut and paint the cut with a tree-pruning compound. The Contractor shall return all areas disturbed during construction to their original condition before final acceptance by the base.

AC1 - 10 WORK SITE CONDITIONS

The work areas shall be made available to the Contractor as follows:

a) Building interior area: The Contractor shall remove and dispose, if not otherwise directed by the Contracting Officer’s Technical Representative, all the floor and/or wall fastened furniture items from the rooms interested by the works. Movable furniture items will be by Government personnel removed prior commencement of the work.

b) The 85 % of the project sites are located within a restricted area. Contractor will be escorted and guarded at all time during works execution Contractor shall strictly comply with the Contracting Officer’s instructions. Delays may happen when the Contractor will enter the restricted areas due to military operations or exercises. In this case the unproductive time will not be at the expense of the USA Government.

c) Administrative Containers: Containers required on site for administrative reasons (office space, conference space, break room) must be in like new condition and painted a color which coordinates with the base architectural plan and is approved by BCE, unless it is hidden by the opaque fencing material. Administrative containers in need of painting and / or repairs or that are in an unsightly condition will not be allowed at the project site. A nameplate, no greater than 0.5 meters X 0.5 meters in size, shall be displayed on the exterior of all trailers which lists the name of the Contractor’s company, 24-hour Contractor’s point(s) of contact (POC) and telephone number where they can be reached.

d) Material Storage: Storage containers will be in like new condition, and painted a color which coordinates with the base architectural plan and is approved by BCE, if it is not hidden by the opaque fencing material. Contractor shall display a nameplate on the exterior of all storage units with the name of the Contractor’s company, the Contractor’s point(s) of contact (POC) and telephone number where they can be reached. Storage of materials at the work site is at the Contractor’s risk. The use of private security guards on a job site shall be coordinated with base Security Forces and approved by the installation commander. The Contractor shall not use any area(s) for material or equipment storage that has not been approved by BCE.

e) Loading and Unloading of Construction Materials and Equipment: Unloading of materials will be allowed within the fenced work area. Contractor's personnel, vehicles and equipment must not obstruct access roads to other buildings.

Temporary parking of vehicles, for loading or unloading materials and equipment is permitted in the proximity of the work area; unless such operations will obstruct traffic flow.

f) Housekeeping and Site Cleanup: At the end of each working day, the Contractor shall be responsible for cleaning the area surrounding the building involved in the work. Since the adjacent buildings are used every day, the Contractor shall provide that the surrounding areas are kept constantly clean and accessible, completely safe, and that the facilities are not in any way aesthetically damaged, even temporarily. Such functions include disposal of accumulated waste materials and rubbish and other operations necessary to present a neat appearance at all times.

Grass within the construction sites and material storage areas shall never exceed 10 cm in height. All rubbish and waste materials shall be placed in Contractor furnished containers. Contractors shall ensure all light weight debris at the construction site is properly secured in waste receptacles so that it does not blow to another area or onto the airfield. During the laying of asphalt roads, streets and/or parking surfaces, areas soiled by residual asphalt shall be cleaned the same day.

AC1 - 11 AIRFIELD SAFETY TRAINING

The Contractor shall contact Airfield Management to receive flight line driver and airfield safety training prior to start of any work beginning on the flight line.

AC1 - 12 PARKING

Contractor or Contractor’s employees, including subcontractors, shall obey all traffic laws on installation.

The Contractor shall park all vehicles, including heavy equipment vehicles, only in unobtrusive locations within the fence line of the construction site or laydown areas.

Every effort must be made to avoid parking vehicles or heavy equipment where it can be easily observed by the public.

The Contractor shall not park outside the construction zone unless approved through

BCE.

The Contractor shall clearly identify their vehicles through the use of company logos or signs on their vehicles.

AC1 - 13 ACCESS ROUTES

The Contractor shall provide a haul route plan for approval by BCE. The 85 % of the project sites are located within a restricted area. Contractor will be escorted and guarded at all time during works execution

For road detour/closures the Contractor shall submit a written request to the Contracting Officer or his authorized representative for approval four (3) weeks prior to his scheduled starting of work.

AC1 - 14 TRUCKING AND ROADS

Trucks loaded with loose material that can create a dust, debris or falling hazard shall be secured and covered. Fasten suitable cover, such as tarpaulin, over the load before entering surrounding streets. The Contractor is solely responsible for spillage from their vehicles and such spillage shall be cleaned up immediately. All roads shall be maintained free of debris at all times. The Contractor is responsible for ensuring all haul routes and site access areas are maintained in a clean and orderly fashion, free from mud, debris and clutter at all times. Special consideration must be given to haul routes that cross active taxiways. No amount of debris at these locations shall be tolerated.

The Contractor shall sweep these areas continuously as long as material deliveries are being made.

AC1 - 15 NOISE CONTROL

The Contractor shall comply with all applicable country, local, and installation laws, ordinances, and regulations relative to noise control, to include applicable base quiet hours.

AC1 - 16 EXCAVATIONS

Every trench/excavation shall be returned to its original condition within ten days of the original excavation; this may be extended to 30 days if approved by the BCE. Contractor shall phase trenching and excavation operations in order to comply. At minimum, Contractor shall restore the site to pre-excavation conditions. All soil stockpiles shall be hidden from view to the maximum extent possible. Prior approval by BCE is required if soil stockpiles are to remain exposed for long periods of time. Dust control measures are the responsibility of the Contractor and shall be implemented as directed by BCE. All road cuts must be approved by BCE prior to execution.

AC1 - 17 LAWN MAINTENANCE

Grassy areas disturbed by any type of construction work including storage, equipment staging, and material delivery areas shall be sodded, or hydro-seeded, where required by BCE. Sodding, or seeding, damaged areas should be accomplished at the earliest planting season possible. Contractor shall be responsible for the successful growth and maintenance of all sodded, or seeded, areas under this contract for a period of thirty (30) days or three mowings after final acceptance of the work. All grass, shrubbery, and ornamental plants fenced by the construction site shall be maintained to base standards by the Contractor.

AC1 - 18 LAWN ESTABLISHMENT

Within seven (7) workdays of actual completion of work at contract site, the Contractor shall prepare all disturbed areas inside and outside of the fenced site for sodding, or hydro-seeding, as provided in contract specifications. Contractor shall restore the site to a condition and appearance equal to or better than existing before the work occurred.

Such restoration work will not be considered complete, and the facility not accepted, until approved by BCE. Additionally, no seeding shall be authorized for lawn establishment, whether new, or for restoration purposes unless specifically authorized by BCE.

AC1 - 19 CONSTRUCTION SITE RESTORATION

All Contractor owned items such as, but not limited to, stakes, traffic/safety cones, barriers, warning tape, erosion control fences, that are erected during construction, shall be removed entirely after completion of project and within five (5) days of Government acceptance of the project site. The Contractor, at his own expense, shall return to the site to remove any items left at or near the project site after this time period. All trailers, equipment/storage units, residual construction materials shall be removed also within five

(5) days of Government acceptance of the project site.

AC1 - 20 PROCEDURES AND WORK PHASES

Prior to starting any work the Contractor shall submit a Work Plan for approval by the Contracting Officer.

AC1 - 21 SALVAGEABLE MATERIALS

Not applicable.

AC1 - 22 CONSTRUCTION DRAWINGS

The following Construction Drawings complement this Technical Specification and are an integral part of the project documents:

SHEET SEQUENTIAL

n°

DESCRIPTION

GENERAL

T-1 1 COVER SHEET

CIVIL

C-1 2 GENERAL PLAN

C-2 3 GENERAL PLAN

C-3 4 GENERAL PLAN

C-4 5 GENERAL PLAN

C-5 6 GENERAL PLAN

C-6 7 GENERAL PLAN

C-7 8 DETAILS

AC1 - 23 ADDITIONAL SPECIFICATIONS

In addition to the Norms and Specifications contained in the Master Specifications as noted in Section AC1-02 of these Technical Specifications, the following Additional Specifications shall apply to this project:

02510 WATER DISTRIBUTION

05500 METAL FABRICATIONS

UFGS 33 11 00 – Water Distribution Specification ( go to http://wbdg.org/ccb/browse_org.php?o=70) shall apply to the project.

http://wbdg.org/ccb/browse_org.php?o=70

AC1 - 24 REVISED MASTER SPECIFICATIONS

In addition to the Norms and Specifications contained in the Master Specifications as noted in Section AC1-02 of these Technical Specifications, the following Revised Master Specifications shall apply to this project:

SECTION 01101 - PROJECT SIGN

SECTION 02220 – SITE DEMOLITION

SECTION 03300 - CAST-IN-PLACE CONCRETE

SECTION 15400R - PLUMBING

AC1 - 25 ADDITIONAL NORMS AND STANDARDS

Furthermore the works included in this project shall be in accordance, when applicable, with the NFPA, ASTM, UL, HANDBOOKS, AFOSH.

AC1 - 26 FINAL ACCEPTANCE TEST & CERTIFICATIONS

1. All installed mechanical and electrical equipment shall have the required Italian Mark of Quality and shall conform to D.P.R. No. 459, dated 24 July 1996, with "C.E." Mark;

and three copies of relevant certificates shall be furnished to the Contracting Officer for each item of equipment installed. Furthermore the electric equipment shall be in compliance with the Legislative Decree No. 626/96 and subsequent modifications which apply the Directive 93/68/CEE.

2. At the end of the work, the Contractor shall provide the Government with three copies of the following documents:

- Once issued NTP, Contractor is required to contact CEAOR (Ms. Cristina Rossetto 0434-305691) and schedule a meeting to fill Form DD1354 with appropriate project data for real property capitalization (DD1354 and category codes list CATCODE_LIST_2010 are available in engineering office during normal hour of operations). Contractor is required to provide final Form DD1354 for 31CES/CD signature before contract close out.

- Certificate of Compliance with Law No. No. 37 dated 22 January 2008, for the installation of the electrical and mechanical systems in a workmanlike manner, signed by the Contractor.

- Final Acceptance Test Certifications for mechanical systems signed by a Registered Engineer to be selected among three candidates proposed by the Contractor to the Contracting Officer.

- 3 set of AS BUILT drawings signed and stamped by qualified engineer and CD with autocad and pdf electronic version of same drawings (AUTOCAD Release 2010 for drawings). Drawings shall be geospatially referenced using real world coordinates WGS-1984 UTM 33N. 31CEP/CEPT section (0434-305488) will provide an AutoCAD drawing that is geospatially referenced for the contractor to use as a background);

- 3 copies of O&M manuals and CD with pdf electronic version of same documentation

ADDITIONAL SPECIFICATIONS

The following additional specifications apply to this project.

SECTION 02510

WATER DISTRIBUTION

PART 1- GENERAL

1.1 DESCRIPTION OF WORK

The work includes provision of new water piping, valves, and miscellaneous items. Provide the system complete and ready for operation. Water piping system including equipment, material, installation, and workmanship shall be as specified herein.

1.2 DELIVERY, STORAGE AND HANDLING

1.2.1 Delivery and Storage

Inspect materials delivered to site for damage. Unload and store with minimum handling. Store materials on site in enclosures or under protective covering. Do not store materials directly on the ground. Keep inside of pipes and fittings free of dirt and debris.

1.2.2 Handling

Handle pipes, fittings, valves and other accessories in such a manner as to ensure delivery to the work point in sound undamaged condition.

1.3 SUBMITTAL

1.3.1 Manufacturer Data

- Valves

- Piping

PART 2 - PRODUCTS

2.1 PIPING MATERIALS

2.1.1 Polyethylene Pipe

Underground pipes shall be polyethylene pipes, PN 16 and shall conform to UNI 7615, UNI EN 12201, UNI 10910, UNI ISO/TR 7474. Joints and fittings shall be installed by electrofusion and butt fusion.

2.1.2 Steel Pipe

Aboveground pipes and interior pipes shall be steel pipe, shall conform to UNI 6363 for a minimum working pressure of 16 kg/cm2. Steel pipe shall be coated outside with a bituminous coating of either coal tar or asphalt base with a minimum thickness of 0.025 mm. The finished coating shall be continuous, smooth, neither brittle when cold nor sticky when exposed to the sun, and shall be strongly adherent to the pipe.

2.1.1.1 Joints

Shall be welded joint or mechanical type, as indicated. Welding shall be in accordance with Section

05120. Flanges shall conform to UNI 2223. The mechanical joint shall consist of:

- A flange cast integrally with the socket or bell of the pipe;

- A rubber gasket fitting a recess in the socket;

- A gland or follower ring to compress the gasket;

- Nuts and bolts for tightening the gland.

2.1.1.2 Accessories

Provide flanges, connecting pieces, and other adapters as required.

2.2 VALVES

Valves shall have cast iron body and shall be designed for a minimum water working pressure of not less than 16 kg/sq.cm. Valves shall have mechanical joint bell, or flange joints as required for the piping in which they are installed. Valves shall have a clear waterway equal to the full nominal diameter of valve, and shall be opened by turning counterclockwise. The operating nut or wheel shall have an arrow, cast in the metal, indicating the direction of opening. Each valve shall have the maker's initials, pressure rating, and year of manufacture cast on the body. Prior to shipment from the factory, each valve shall be tested by hydraulic pressure equal to twice the specified water working pressure. Valves 3 Inches and Larger shall be equipped with handwheel or a square operating nut. Wedging surfaces shall be bronze to bronze. Pins and bolts in the wedging mechanism shall be made of bronze. Valves shall be vertically mounted.

A heavy bronze track shall be provided on each side of the valve body and bonnet, and the disk shall be equipped with wide, substantial bronze slides which will permit the disks to ride almost to the point of seating without coming in contact with the valve seats. A bituminous coating equal to that specified above for ductile iron pipe shall be applied to the ferrous part of the valves, except finished or bearing surfaces.

Surfaces shall be clean, dry, and free from grease before coating. Two coats shall be applied to both the inside and outside ferrous metal. The bituminous coating shall be either coal tar or asphalt base with a minimum thickness of 0.025 mm (1 mil). The finished coating shall be continuous, smooth, neither brittle when cold nor sticky when exposed to the sun, and shall be strongly adherent. The inside coating, after drying 48 hours, shall impart no objectionable color, odor, or taste to water in contact with the coating for a minimum of 48 hours.

2.4 VALVE BOXES

Valve boxes shall be of cast iron, complete with cover as shown on the drawings. Cast-iron boxes shall be of extension type with screw or slide type adjustment and with flared base. The minimum thickness of metal shall be 5 mm. The word "WATER" shall be cast on the cover. Boxes shall be installed over each outside gate valve unless otherwise shown on the drawings. The boxes shall be of such length as will be adapted, without full extension, to the depth of cover required over the pipe at the valve location.

2.5 PIPE HANGERS AND SUPPORTS

Provide adjustable type. The finish of rods, nuts, bolts, washers, hangers and supports shall be hot-dip

02510-15 galvanized after fabrication.

2.6 ACCESSORIES

Provide accessories and adaptors as required.

2.7 BURIED UTILITY WARNING AND IDENTIFICATION TAPE

Provide detectable aluminum foil plastic-backed tape or detectable magnetic plastic tape manufactured specifically for warning and identification of buried piping. Tape shall be detectable by an electronic detection instrument. Provide tape in rolls, 7.5 cm minimum width, blue colored for the utility involved.

Use permanent code coloring unaffected by moisture and other substances contained in trench backfill material. Bury tape at a depth of 30 cm below the top surface of earth or the top surface of the subgrade under pavements.

2.8 FLEXIBLE JOINT

Shall be provided on exterior side of pipe at wall penetrations. Provide elastomeric flexible connectors fabricated of multiple plies of tire cord fabric and elastomeric materials with integral reinforced elastomeric flanges with galvanized malleable iron back-up rings. Provide steel restraint cables with fittings, nuts and washers where elongation would exceed manufacturer’s limits at operating pressure.

Flexible joint shall be suitable for the pressure indicated for the connected pipes.

PART 3 - EXECUTION

3.1 EQUIPMENT INSTALLATION

Equipment and appurtenances shall be installed in the position indicated and in accordance with the manufacturer's written instructions. All appurtenances required for a complete and operating system shall be provided, including such items as piping, conduit, valves, sleeves, foundations, anchors, grouting, power supply, seal water units, and controls.

3.2 CONCRETE

Concrete shall conform to Section 03300.

3.3 EARTHWORK

Provide in accordance with Section 02220.

3.4 CONNECTIONS TO EXISTING LINES

Make connections to existing water lines after approval is obtained and minimize interruption of service on the existing line.

3.5 PIPE LAYING

Before each length of pipe is laid, the pipe should be examined for damage. The ends of the pipe should also be examined for fine longitudinal cracks. Pipes damaged at such points shall be replaced at the Contractor's expense. Pipe, specials and fittings shall be lowered, not dropped, into the trench, using suitable slings that will not damage coatings, and, while in the air, the underside shall be inspected for any damage to protecting coatings. Such damage, if existing, shall be repaired prior to setting the pipe in the line. The laying conditions shall be a flat bottom trench. The pipe shall be laid in full contact with the bottom and without blocks to provide uniform bearing for the entire length of the pipe. Sufficient room shall be left at ends of pipe and fittings to make joints and inspect same upon completion. At all points where the outside diameter of the pipe is greater than the barrel diameter, such as flanges or pipe bells, the excavation shall be increased to provide working space. Backfilling shall be done in accordance with Section C1. Tamped backfill shall be placed around all pipes, specials, or fittings in such a manner as to protect coatings, using where necessary, wooden tampers. No metal pipes or rods shall be permitted to be thrust through the backfill around the pipes. No tools shall be thrown, placed, or stored within pipes or fittings. Any damage to coatings, interior or exterior, shall be repaired to the satisfaction of the Contracting Officer, by and at the expense of the Contractor. All pipes shall be laid true to line and grade.

Should any portion of the line move during construction, due to any cause whatsoever, it shall be the Contractor's responsibility to restore the pipe to its designed portion. Joints shall be made in accordance with the manufacturer's instructions. Pipe shall not be laid in water, or when trench or weather conditions are unsuitable for the work. When work is not in progress, open ends of pipe and fittings shall be securely closed so that no trench water, earth, or other substance will enter the pipes or fittings. The work covered by this section shall terminate at a point approximately 1.5 m from the building. Depth of cover over top of pipe shall be as indicated on drawings.

3.6 PIPE DEFLECTION

The deflection at any joint shall not exceed the maximum recommended by the joint manufacturer for the size of pipe being installed. Deflections larger than those recommended by the joint manufacturer shall be accomplished by dividing the deflection between successive joints, if practicable, or by the provision of suitable elbows.

3.7 PIPE ANCHORAGE

Provide concrete thrust blocks for pipe anchorage. Materials shall be as specified in Section S5 and concrete class shall be Rc 150. Thrust blocks at the fire hydrant shall be as indicated on drawings.

3.8 INSTALLATION OF VALVES AND VALVE BOXES

Valves and valve boxes shall be installed where shown, and shall be set plumb.

3.9 DISINFECTION

Each unit of completed water line shall be sterilized with chlorine before acceptance for operation.

1) Liquid Chlorine: Liquid chlorine shall be 99.5% pure by volume as obtained from vaporized liquid chlorine and suitable for use in water pipe sterilization.

2) Hypochlorite:

- Chlorinated Lime for decontamination use shall conform to the requirements listed in

Table I.

02510-17

TABLE I

CHLORINATED LIME

Available chlorine, min. % 30

Moisture, max. % 3

Practicable size:

- Retained on 100-mesh, min. % 0

- Through 30-mesh, min. % 60

- Through 14-mesh, min. % 98

Loss of available chlorine on heat, max. % 25

Total mixed oxides of heavy metal, plus Al2O3, max. 50

Iron, max. % 25

Calcium hydroxide, min. % 15

Calcium hydroxide, max. % 35

Bulk density, min. gr/mm 0.80

A representative sample shall be taken from each delivery and sent to the laboratory for test. Tests shall be made at the expense of the Contractor. Sodium Hypochlorite: May be used for decontamination in place of chlorinated lime. The material shall be clear greenish-yellow liquid free from sediment or suspended matter. Available chlorine in the solution shall be not less than 10% and free alkali shall be not more than 1.5% by weight, calculated as NaOH. A representative composite shall be taken from each delivery, placed in an amber glass bottle, glass-stoppered, and sent to the laboratory for test, at the expense of the Contractor.

3) Method: Sterilization shall be accomplished as described below. The amount of chlorine applied shall be such as to provide a dosage of not less than 50 parts per million. The chlorinating material shall be introduced to the water lines and distribution system in a manner approved by the Contracting Officer.

If possible to do so, the lines shall be thoroughly flushed before introduction of the chlorinating materials.

After a contact period of not less than 8 and preferably 24 hours, the system shall be flushed with clean water until the residual chlorine content is not greater than 0.2 part per million. All valves in the lines being sterilized shall be opened and closed several times during the contact period.

3.10 FIELD QUALITY CONTROL

3.10.1 Pressure Test

After the pipe has been laid and partially backfilled between joints, each section of pipe between valves shall receive the following hydrostatic test: The pipe shall be slowly filled with water and tested to 14 kg/cm2 minimum pressure. The pressure shall be applied by means of a pump connected to the pipe in a manner satisfactory to the Contracting Officer. A meter to measure make-up water shall also be installed.

The pump, pipe connections, taps into the pipe, all necessary apparatus and necessary labor shall be furnished by the Contractor. Before applying the specified test pressure, all air shall be expelled from the pipe. All exposed pipes, fittings, valves and joints shall be carefully examined during the open trench test.

Any cracked or defective pipes, fittings or valves discovered in consequence of this pressure test shall be removed and replaced by the Contractor with sound material and the test shall be repeated until satisfactory to the Contracting Officer. While the test pressure is being maintained, all exposed pipes, fittings, valves, hydrants and joints shall be inspected for leaks. The test pressure shall be maintained for a period of not less than two hours. Any joints showing visible leakage shall be repaired to the satisfaction of the Contracting Officer. Where concrete thrust blocking is provided, the pressure test shall not be made until at least five days have elapsed after the concrete thrust blocking was installed.

3.10.2 Leakage Test

A leakage test shall be conducted after the pressure test has been satisfactorily completed. The

Contractor shall furnish all necessary gages and measuring devices, pumps and apparatus and labor for conducting the test. The duration of each leakage test shall be two hours, and during the test, the pipe shall be subjected to the normal working pressure for the section of line being tested. These pressures will be based upon the lowest point of the section of line under test. Leakage is defined as the quantity of water to be supplied to the newly laid pipe, or any valved section thereof, necessary to maintain the specified leakage test pressure after the pipe has been filled with water and the air expelled. No pipe installation will be accepted until the leakage is less than the number of liters per hour as determined by the following formula:

L = ND times the square root of P in which: L equals the allowable leakage, in liters per hours, N is the number of field joints in the length of pipeline tested, D is the nominal diameter of the pipe in mm and P is the average test pressure during the leakage test, in kg/sq.cm gauge. Should any test on pipe laid disclose leakage greater than specified above, the Contractor shall, at his own expense, locate and repair the line until the leakage is within the specified allowance.

3.10.3 Operational Test

Prior to acceptance, an operational test of all control systems shall be performed to determine if the installed equipment meets the purpose and intent of the specifications. Tests shall demonstrate that the equipment is not electrically, mechanically, structurally, or otherwise defective; is in safe and satisfactory operating condition; and conforms with the specified operating characteristics. Prior to applying electrical power to any motor driven equipment, the drive train shall be rotated by hand to demonstrate free operation of all mechanical parts. Tests shall include checks for excessive vibration, leaks in all piping and seals, correct operation of control systems and equipment, proper alignment, excessive noise levels, and power consumption.

3.10.4 Retesting

If any deficiencies are revealed during any test, such deficiencies shall be corrected and the tests shall be reconducted.

3.10.5 Manufacturer's Services

Services of a manufacturer's representative who is experienced in the installation, adjustment, and operation of the equipment specified shall be provided. The representative shall supervise the installation, adjustment, and testing of the equipment.

-- END OF SECTION --

02510-19

SECTION 05500

METAL FABRICATIONS

PART 1 - GENERAL

1.1 SCOPE

The work covered by this section consists in furnishing all plant, labor, equipment, materials and accessories and performing all operations in connection with the installation of metal ladders, handrails, and other miscellaneous steel.

1.2 SUBMITTALS

Submit the following for approval.

1.2.1 Drawings

Show all information necessary for fabrication and installation of items. Indicate materials, sizes, thicknesses, fastenings, profiles and color.

1.3 DELIVERY, STORAGE, AND PROTECTION

Deliver materials to the site in an undamaged condition. Carefully store materials off the ground to provide proper ventilation, drainage, and protection against dampness, they shall be free from nicks, scratches, and blemishes. Faulty or damaged material shall be replaced at the contractor’s expense.

PART 2 - PRODUCTS

2.1 MISCELLANEOUS ITEMS

Shall be made of galvanized steel profiles type Fe360 with the dimensions as indicated. The hot galvanized process shall be done after the item has been assembled. If, for the contrary, it is done to the single elements then, the assembling shall be executed utilizing galvanized steel bolts.

2.2 PROTECTION FROM CONTACT OF DISSIMILAR MATERIALS:

2.2.1 Metal

Paint metal in contact with mortar, concrete, or other masonry materials with alkali-resistant coatings such as heavy-bodied bituminous paint.

PART 3 - EXECUTION

3.1 CLEANING

Clean interior and exterior surfaces.

-- END OF SECTION –-

REVISED MASTER SPECIFICATIONS:

The following master specifications are revised as follows:

SECTION 01101 – PROJECT SIGN

- Part 2 – General: Change “120 cm wide x 80 cm high” to read “244 cm wide x 122 cm high”.

ASHE 10-1032 INSTALL EMERGENCY SHOWERS

EYEWASHES FOR ACFT, AREA F

SECTION 02220 – SITE DEMOLITION

- Paragraph 3.1 – EXISTING ITEMS TO BE REMOVED: Add “as indicated and specified”.

- Paragraph 3.2.2 – Revised to read “Material to be salvaged and reinstalled: Salvaged material to be reinstalled shall be stored as directed by the Contracting Officer until it is reinstalled”.

SECTION 03300 – CAST-IN-PLACE CONCRETE

- Add the following reference to paragraph 1.1.3 Italian National Institute for the Unification of Standards

(UNI) Publications:

UNI EN 206-1 (2001, supersedes 9858, replaced) Concrete – Specification, per-formance, production and conformity.

- Paragraph 1.3.1 Manufacturer’s Catalog Data. Printed Installation Instructions of the following.

Replace::

a. Chemical Floor Hardener with

a. Chemical Floor Hardener: not applicable

- Paragraph 1.5.1 General to be revised to read: Concrete will be in strict accordance with applicable portions of Law 1086 and referenced D.M. dated January 1996.

Unless otherwise noted on structural drawings the concrete shall have a 28-day compressive strength of Rck 350 for reinforced concrete and Rc150 for leveling concrete.

- Paragraph 1.5.1 Revise last three lines to read:

Maximum aggregate size shall be 25 mm. The maximum water cement ratio, by weight, for all concrete with Rck of 350 kg/cm2 shall not exceed 0.45:

- Paragraph 2.4 AGGREGATES to be revised to read:

Aggregates shall conform to UNI 8520 and shall be type A in accordance with the limits there indicated.

SECTION 15400R – PLUMBING

Paragraph 1.1:

Add after "Decree 1391, dated 22 December 1970 ....." the following:

Ministry of Health Decree Regulation concerning materials and objects No. 174 dated 6 April 2004 that can be used in the collecting, treatment, supply and distribution of fixed systems of the water to be used by human being.

Add:

UNI EN 1057 (2010) Copper and copper alloys - seamless, round copper tubes for water and gas in sanitary and heating applications

UNI 7615 (1976) High density polyethylene pipes. Test methods.

UNI 1519-1 (2001) Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Polyethylene (PE) - Specifications for pipes, fittings and the system.

UNI ISO/TR 7474 (1983) High density polyethylene pipes and fittings. Chemical resistance with respect to fluids.

UNI 10954-1 (2001) Metallo-plastic multilayer piping systems for hot and cold water – Pipes.

Paragraph 2.1.1:

Delete:

“Pipes and fittings shall be cast iron without socket (hubless pipes) conform to DIN 19522.”

“Pipes and fittings shall be, as shown on drawings and on work items:

a) Cast iron made without socket (hubless pipes) conform to DIN 19522.

b) High density polyethylene (HDPE) made conforming to UNI 7615, UNI 1519-1 and UNI ISO/TR 7474 norms.”

Paragraph 2.1.2:

Delete:

“Pipes and fittings shall be cast iron with socket, hub and spigot pipes with caulked and leaded joints, conform to DIN 19502-19507.”

Add:

“Pipes and fittings shall be, as shown on drawings and on work items:

a) Cast iron made with socket, hub and spigot pipes with caulked and leaded joints, conform to DIN 19502-

19507.

b) High density polyethylene (HDPE) made conforming to UNI 7615, UNI 1519-1 and UNI ISO/TR 7474 norms.”

Paragraph 2.2.1

Delete:

“All cold and hot water pipes 50 mm and smaller shall be type K copper pipe of quality CU-DHP, conforming to UNI EN 1057 e UNI 9182 unless otherwise indicated on drawings. Piping 65 mm to 100 mm shall be seamless galvanized steel pipe, UNI EN 10255. Exposed cold and hot water supply piping to the plumbing fixtures shall be chrome-plated brass pipe.”

Delete:

“Domestic cold and hot main distribution piping inside the building shall be galvanized steel conforming to UNI 10255 norm.”

Domestic cold and hot terminal distribution piping inside the building shall be, as shown on drawings and on work items:

a) Galvanized steel conforming to UNI 10255 norm.

b) Type K copper made pipe of quality CU-DHP, conforming to UNI EN 1057 e UNI 9182.

c) Multilayer type PE-Xb/Al/HDPE made conforming to UNI 10954-1, Class 1, Type A.

Multylayer pipes shall be:

- IIP Italian Plastics Institute and/or equivalent European institute marked.

- Suitable for potable water piping according to Ministry of Health Decree dated 6 April 2004, No.174.

– Made by a producer provided with a Certified Quality Management System conforming to ISO

9001:2000.

– Warranted for a 10 bar working pressure, with 0°C up to 70°C working temperature range, with 95°C peak value for 150 hours/year, for 50 years.

Multilayer pipes shall have the following characteristics:

– Thermal conductivity 0.43 W/mk

– Working temperature 0-70 °C

– Working pressure 10 bar

Multilayer pipes shall have chemical or mechanical, warm applied indelible marking with the following information:

– Reference norm: UNI EN 10954-1.

– Producer and/or product name.

– Nominal Diameter.

– Type: A.

– Material layers identification (PE-Xb/Al/HDPE).

– Working pressure: 10 bar.

– Class: 1.

– Serie: S.

– Producer Identification Code (No. IIP xyz).

– Production date.”

Paragraph 3.1:

Add:

Multylayer pipes shall have pressfittings junctions, with brass or bronze press-forged fittings, with EPDM O- Ring and anti electrolytic corrosion PE-LD washer, or with PVDF (polyvinylfluorid) fittings with EPDM O- Ring. Pipes junction shall be realized directly pressing the pipe on the fitting by suitable tools type approved by the system producer. Multilayer pipes installation shall be according to installation manual of pipes producer.

Paragraph 3.2:

HDPE waste pipes installation shall be according to installation manual of pipes producer.

Paragraph 3.3:

In table, MAXIMUM SPACING METERS

Nominal Pipe 25 mm 32mm 40mm 50mm 65mm 75mm Size (mm) and under

Steel Pipe 2.1 2.4 2.7 3.1 3.4 3.7

Copper Pipe 1.8 2.1 2.4 2.4 2.7 3.1

Add in the table:

Multilayer 1,0 2,0 2,0 2,0 2,5 2.5 Pipe

--End of Section --

SCHEDULE OF WORK ITEMS

EACH ITEM OF THE SCHEDULE IS INCLUSIVE OF FURNISHING AND INSTALLATION OF MATERIALS

AND EQUIPMENT, SCAFFOLDING, TRANSPORTATION TO DUMP OR STORAGE OF DEMOLISHED

AND/OR REMOVED MATERIALS, IN ACCORDANCE WITH CONTRACTING OFFICER'S INSTRUCTIONS

AND ALL FINISHING WORK REQUIRED TO MAKE EACH ITEM COMPLETE IN A WORKMANLIKE

MANNER.

ALL THE QUANTITIES THAT ARE INDICATED OR SUCCESSIVELY ADDED, ARE ESTIMATES.

THEREFORE THE GOVERNMENT SHALL BE NOT HELD RESPONSIBLE FOR THE ACCURACY OF THE

ESTIMATED QUANTITIES. THE CONTRACT REQUIRES A COMPLETED PROJECT ON A LUMP SUM

BASIS.

IT IS THEREFORE THE RESPONSIBILITY OF THE CONTRACTOR TO CALCULATE, FORESEE AND

PERFORM ALL QUANTITIES AND WORK NECESSARY EVEN IF NOT MENTIONED IN THE

SPECIFICATIONS BUT INCLUDED IN THE DRAWINGS OR MANIFESTLY NECESSARY TO DELIVER A

COMPLETE PROJECT BASED ON ITS OVERALL SCOPE..

PART I - DEMOLITIONS, EXCAVATIONS AND REMOVALS

PART Ia - Architectural Works

Not applicable

PART Ib - Structural Works

Not applicable

PART Ic - Civil Works

1) Trench excavation in any kind of soil for new water pipe lines installation and electrical cableducts until the depth of 1.20 mt. Item includes :

- Trench excavation 0,80 m3/lm;

- Loading and transportation of resulting material to authorized dump site and dumping fees;

- All operation necessary for the workmanlike execution of the work.

2072.00 m3

2) Backfilling operation of previous excavated trenches.

Item includes:

- Furnishing and installation of 100+100+100 mm of selected river sand 0.20 m3/lm;

- Furnish and installation of 16 mm 2 detectable copper wire and plastic warning tape;

- 900 mm backfilling with selected previously digged earth material;

- Soil Compaction at 95% of max density AASHO modified test;

- All operation necessary for the workmanlike execution of the work.

2072.00 m3

3) Demolition of existing bituminous asphalt pavement.

Item includes:

- Saw cut of the pavement edges;

- Removal/ demolition of 10/12 cm thickness asphalt paving , including sub-base;

- Loading and transportation of resulting material to authorized dump site and dumping fees;

- All operation necessary for the workmanlike execution of the work.

80.00 m2

4) Demolition of existing reinforced concrete slab.

Item includes:

- Saw cut of the pavement edges;

- Demolition until 30 cm thickness reinforced concrete surfaces, including sub-base;

- Loading and transportation of resulting material to authorized dump site and dumping fees;

- All operation necessary for the workmanlike execution of the work.

65.00 m2

5) For asphalt paved area, furnishing and placing of 8 cm thickness modified binder course, including sub-base preparation and any other operation necessary for the workmanlike execution of the work.

6) For asphalt paved area, furnishing and placing of 3 cm thickness modified wearing course , with modified bituminous, including tack coat (1.5 kg/m2) and any other operation necessary for the workmanlike execution of the work.

7) Furnishing and installation of concrete industrial floor for external area (pad and sidewalks), up to 30.0 cm height, consisting of concrete cast-in-place of class C25/30 and reinforced with B450C 20x20cm, 8 mm diameter electro-welded steel wire mesh. Floor surface will be hardened with quartz 4kg/mc and final finish will be rough and worked with helicopter. Item includes any other burden to give a job performed in a workmanlike manner.

73.00 m2

8) In the Sierra Loop (drawings C-2) perform taxiway crossings using pipe percussion jack/endless screw method. A steel pipe of 50 cm. diameter and 10 mm thickness will be pushed horizontally with jacks under the taxiway at a depth of approx. 1.80 mt. with an endless screw within it to remove earth, cobles, gravel and in general all material encountered while pipe progresses horizontally under the taxiway. Item includes excavation works until the depth of 2.00 for an area of 15.00 x 10 mt for the installation of pipe percussion equipment, area backfilling and land restoration. Contractor shall use all necessaries precautions, as determining an adequate depth other than 1.80 mt., to avoid any damages to the taxiway structures and the existing utilities in the area.

30 L.M

9) Supply man hours and equipment for the execution of concrete coring with 150 mm diameter on existing shelter walls (65 cm thickness) necessary to perform openings for the installation of new water line, including the furnish and installation of dia. 140 mm stainless steel sleeves. The portion of water line above ground, before entering into the shelter wall, it will be protected by a corrugated PVC pipe with 20 cm thickness cast in place concrete all around (class C25/30), starting from ground level and encasing the external part of water line.