TechnicalSpecificationsFormatRevised.pdf

INDEX

SECTION Ia

GENERAL PROVISIONS

SECTION Ib

QUALITY CONTROL BY CONTRACTOR

SECTION IIIa

DEMOLITION AND REMOVAL

SECTION IIIb

EXCAVATION AND BACKFILLING

CAPITOLO IVa

REINFORCED CONCRETE WORK

SECTION Va

MASONRY

SECTION Ve

MISCELLANEOUS METALWORK

SECTION VIa

FLOORING

SECTION VIb

WAINSCOTING

SECTION VIIa

SURFACE PREPARATION

SECTION VIIb

PLASTERING

SECTION VIId

WALLS PAINTING

SECTION VIIIa

REPAIR OF THE ROOF MEMBRANE

SECTION IXa

ALUMINUM DOORS AND WINDOWS

SECTION Xa

MARBLE AND NATURAL STONE WORK

SECTION Xb

FALSE CEILING

SECTION XId

REPAIR OF BITUMINOUS PAVINGS

SECTION XIIa

PLUMBING

SECTION XIIb

PLUMBING FIXTURES AND FIXTURE TRIMMINGS

SECTION XIIc

HEATING SYSTEM

SECTION XIIe

THERMAL INSULATION FOR MECHANICAL SYSTEMS

SECTION XIIf

AIR CONDITIONING SYSTEM

SECTION XIIg

VENTILATION SYSTEM

SECTION XIIIa

ELECTRICAL SYSTEMS

SECTION XIIIb

TELECOMMUNICATION SYSTEM

SECTION Ia

GENERAL PROVISIONS

1a-01 WORK PHASING.

a. Work Schedule. Whenever the nature of the contract and the work location are such that the work is to be performed in an area assigned to activities and services that cannot be interrupted, work shall be scheduled with concurrence of COR in such a manner as to cause the least possible inconvenience to the normal operations of mentioned activities and services.

Contractor shall submit his proposed work schedule to the COR at the time of the pre-construction conference. Work start shall be contingent upon schedule approval.

b. Utilities Cut-Offs. As a rule, cut-off of power and other utilities (water, sewage, heating system, etc.) is not allowed. All temporary connections necessary to insure continuous power distribution shall be provided. If cut-offs are necessary, they shall not exceed the period of time strictly needed to make the temporary connections. Cut-off shall be scheduled with the COR not less than 15 days ahead of time.

c. Alarm, Telephone and Televisions Systems. Deenergizing of alarm, telephone and television systems is strictly prohibited. Should these systems, which may not appear on the drawing interfere with the contract work, they shall be temporarily diverted and fed by means of temporary connections to be adequately protected. Written approval must be obtained from COR prior to doing any temporary work.

d. System Reactivating. At the completion of the work, all existing systems, including water, electrical and heating systems, shall be reactivated and placed in their original locations.

e. Temporary Protections. Floors, carpets, and equipment that cannot be removed shall be adequately protected by temporary tarpaulins to be furnished and installed at no cost to the

US Government. In addition, temporary protections shall be furnished and installed in some particular areas so as to allow performance of activities that cannot be interrupted or transferred.

Also, the Contractor shall be responsible for removing, protecting, and reinstalling all furniture, shelves and furnishings that may interfere with the work course. A wrong or no evaluation of all requirements specified above does not constitute grounds for a request for additional compensation.

1a-02 JOBSITE CLEAN UP AND DUST CONTROL. The contractor shall have sufficient trash/waste bins on site, and shall clean the worksite so that all discarded materials, debris and trash are placed in these bins at the end of each workday, and not left or allowed to accumulate anywhere else on the jobsite. These waste bins shall not be allowed to overflow with debris, and shall be emptied as soon as they become full. Haul roads shall be watered sufficiently to prevent excessive dust. The work area shall be swept regularly to prevent accumulation of debris.

Equipment, construction materials and excavated soil shall be stored in a safe and orderly manner on the jobsite, in accordance with the contractor's approved area use plan.

1a-03 CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT. The contractor is considered the waste generator of all salvage, re-usable, re-cyclable and disposable materials derived from the demolition and removal works included in this contract and shall handle these materials as hereinafter indicated.

a. Salvage Material. All salvage end items that the COR will have considered in good operating conditions shall be disassembled without damage, cleared of all dirt and scaling and then transported to the DPW Warehouse, Building 5156, Depot, where they shall be handled over undamaged.

b. Re-usable Material. End items removed during contract accomplishment which cannot be re-utilized in future construction but which still have a commercial value shall be delivered to the DRMO, through DD Form 1348-1a. This material includes, but it is not limited to, canvas, textile consisting of scrap clothing, scrap aluminum including doors, windows and frames, copper, brass, bronze, and stainless steel, cables, electric motors, light and heavy metals in different sizes and thicknesses that the DRMO contractor can handle (3-4 m long), electrical and electronic equipment, and kitchen appliances. All the above material must be free of hazardous property and need to be segregated. The scraps generated in the Supply & Maintenance Area shall be transported to the DRMO yard only on Monday and Tuesday from 08:00 am to 15:00 pm by appointment through the COR. The scraps generated from other installations must be kept in place. DRMO will arrange the removal. However, the contractor shall request a pre-inspection of the material by DRMO through the COR.

c. Recyclable Material. All construction and demolition recyclable waste material shall be delivered to authorized treatment facilities by the contractor.

d. Special Waste. All special waste, either hazardous or not hazardous, shall be delivered by the contractor to authorized disposal facilities.

e. Waste Storage. Construction and demolition waste shall be stored in waste specific containers provided by the contractor. Containers will be in good conditions, free from severe rusting, bulging, or structural defects. Containers shall be placed in area identified by COR.

Containers shall be removed once full or on COR’s decision.

f. Certificates and Authorizations.

(1) Recyclable Materials. As regards to recyclable materials, the Contractor shall submit copy of the authorization of the treatment facility which they are delivered to and will certify that waste have been removed in compliance with applicable law requirements.

(2) Disposable Materials. As regards to material delivery to disposal facilities, the contractor will provide the COR and DPW Environmental Office with copies of the following documents:

Authorization to transport construction and demolition waste;

Authorization of the landfill;

4th copy of Formulario di Identificazione del Rifiuto.

(3) Waste Manifest. All transported waste will be accompanied by the

Formulario di Identificazione del Rifiuto (waste manifest) to ensure a complete audit trail from point of origin to ultimate disposal. The waste manifest must be completed in quadruplet, all dated and signed by the waste generator and countersigned by the transporter. The first copy of the manifest will remain with the waste generator; of the remaining three copies, (countersigned and dated by the receiver), the second copy will remain with the transporter, the third copy will remain with the receiver, and the fourth copy must be returned by the transporter to the waste generator within 3 months of delivery of the waste to the disposal/treatment facility.

g. Costs. All operations included in this paragraph shall be carried out by the contractor with no additional cost to the US Government.

1a-04 AUTHORIZATION FOR INSTALLATION OF MATERIAL AND EQUIPMENT.

Before installing any material or equipment mentioned in the specifications, approval shall be obtained from the COR. Contractor shall submit material samples, shop drawings, manufacturer's literature, etc., to the COR 10 days prior to installation and shall proceed with installation only after receiving written approval from the COR. All material installed without COR's approval shall be removed.

1a-05 ISPESL AND CEI STANDARDS. All work described in these specifications shall be accomplished in strict compliance with the ISPESL (Superior Institute of Prevention and

Assurance of Work) and CEI (Italian Electrotechnical Committee) standards. In particular, if the work under contract, such as roof repairs, building painting, etc., may cause Contractor's personnel or other individuals to come in contact with non insulated electric lines, these shall be temporarily protected by use of appropriate spiral plastic tubes available on the market.

1a-06 TRANSLATION AND TITLE ABBREVIATION. The terms COR and "Direzione dei

Lavori" used in the Italian version of these specifications are equivalent to the American term

"Contracting Officer's Representative," which in the English version is indicated by the letters

COR.

1a-07 DIGGING PERMIT. The Contractor shall obtain a digging permit for all work areas affected by this contract (to insure that all the as-built information for underground services is received). This permit and related drawings must be received by the Contractor prior to starting any work. After receipt of the digging permit, the Contractor shall immediately notify, in writing the Contracting Officer of the permit receipt. The Contractor will be held responsible for any damages caused to existing services, as indicated on the digging permit and related drawings, and will repair such damages at his own expense.

1a-08 ASBESTOS. No handling of asbestos containing material is included in this project. Use of asbestos containing materials is forbidden.

1a-09 PARTICULAR REQUIREMENT FOR WORK IN HEATING PLANTS. When the contract requires the work to be performed inside heating plants, the contractor shall provide a new cylinder in the door lock and shall deliver two keys of the new cylinder and the removed cylinder to the personnel in charge of the maintenance. At the work end the contractor shall restore the lock to the original conditions and the temporary cylinder will remain his own property.

1a-10 ANTI-TERRORISM TRAINING. The Contractor shall comply with the following security requirements:

a. AT Level I Training. All contractor employees, to include subcontractor employees, requiring access Army installations, facilities and controlled access areas shall complete

AT Level I awareness training within 30 calendar days after contract start date. The contractor shall submit certificates of completion for each affected contractor employee and subcontractor employee, to the COR within 10 calendar days after completion of training by all employees and subcontractor personnel. AT Level I awareness training is available at the following website: httQ://jko.jten.mil.

b. OPSEC Training. According to AR 530-1, new contractor employees must complete

Level I OPSEC training within 30 calendar days after they report for duty. All contractor employees must complete annual OPSEC awareness training.

c. Access and general protection/security policy and procedures. Contractor and all associated sub-contractors employees shall provide all information required for background checks to meet installation access requirements to be accomplished by installation Provost Marshal Office, Director of Emergency Services or Security Office.

Contractor workforce must comply with all personal identity verification requirements

(FAR clause 52.204-9, Personal Identity Verification of Contractor Personnel) as directed by DOD, HQDA and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in contractor security matters or processes.

d. iWATCH Training. The contractor and all associated sub-contractors shall brief all employees on the local iWATCH program (training standards provided by the requiring activity ATO).This local developed training will be used to inform employees of the types of behavior to watch for and instruct employees to report suspicious activity to the

COR. This training shall be completed within 30 calendar days of contract award and within 30 calendar days of new employees commencing performance with the results reported to the COR NLT 40 calendar days after contract award.

1a-11 ENVIRONMENTAL PROTECTION SYSTEM. The contractor will provide the following information semi-annually to be used by the Government to address environmental performance relative to the goals of the USAG Vicenza Environmental Management System.

Please note that the amounts reported are those used/generated by the contractor regardless of source (private purchase or government furnished). Reports for January – June will be submitted by 15 July and reports for July-December will be submitted by 15 January each year.

Media Report Element #1 Report Element #2

Non-Hazardous Solid

Waste

Total Waste

Generated (Kg)

Amount of Waste

Diverted from

Landfill (Kg)

Construction

Debris/Demolition

Materials

Total Waste

Generated (Kg)

Amount of Waste

Diverted from

Landfill (Kg)

Compostable/Organic

Material

Total Waste

Generated (Kg)

Amount of Waste

Diverted from

Landfill (Kg)

Hazardous Materials Total Used (Kg)

Hazardous Waste Total Generated (Kg) Total Recycled (Kg)

Energy Consumption -

Electricity

Total Energy

Consumed (MBtu)

Energy Consumption -

Fuel

Total Fuel Consumed

(L)

Renewable/Alternative

Energy

Total Consumed

(MW)

Facility

Construction/Renovation

Number of Buildings

LEED Certified

Silver or Higher

SqFt of buildings

LEED Certified

SECTION Ib

QUALITY CONTROL BY CONTRACTOR

1b-01 GENERAL. The Contractor shall establish and maintain an effective quality control system to implement the requirements of contract clause entitled "Inspection of Construction (July 1986)".

The quality control system shall comprise plans, schedules, and organization necessary to provide materials, equipment, workmanship, manufacture, construction, and operations which comply with contract requirements and shall identify personnel and forms to be used. The system shall cover construction operations, both indoors and outdoors, and shall be in accordance with the proposed construction sequence.

1b-02 COORDINATION MEETING. As soon as practicable after receipt of Notice to Proceed and before start of construction, the Contractor shall meet with the Contracting Officer's

Representative (COR) and discuss the Contractor's quality control (CQC) system. During the meeting a mutual understanding of the system details shall be developed including the forms for recording the CQC operations, control activities, testing, administration of the system for both indoors and outdoors construction, and the interrelationship of Contractor's inspection and control with the Government's inspection. Minutes of the meeting will be prepared by the COR and forwarded to the Contracting Officer who will make them a part of the contract file. There may also be other subsequent meetings will be called to reconfirm understandings. Minutes of these meetings will also be forwarded to the Contracting Officer.

1b-03 QUALITY CONTROL PLAN.

a. Prior to starting the construction, the Contractor shall furnish his CQC plan through the COR to the Contracting Officer for acceptance. Construction will be permitted to begin only after acceptance of the CQC plan or approval of that portion of the plan applicable to the particular feature of the work to be started. The QC plan proposed by the Contractor shall identify personnel, procedures, instructions, records and forms, and, as a minimum, shall include:

(1) A description of the quality management organization.

(2) The names, qualifications, duties, responsibilities, and authorities of each person assigned a quality control (QC) function.

(3) A copy of the letter to the QC manager, signed by an authorized official of the firm, which describes the responsibilities and delegates the authorities of the QC manager.

(4) Procedures to perform QC over other activities including subcontractors, manufacturers, and suppliers.

(5) Control testing procedures for each specific test.

(6) Reporting procedures for QC including proposed reporting formats.

b. After approval of the QC plan the Contractor shall notify the Contracting Officer in writing of any proposed change to his QC plan. Proposed changes are subject to acceptance by

Contracting Officer.

c. The acceptance of the QC plan is conditional and will be predicated on a satisfactory performance during the construction. If it is determined that the QC plan, personnel, instructions, controls, tests or records are not providing a construction conforming to contract requirements, the

Government will reserve the right to require the Contractor to make changes in his QC plan and operations, as deemed necessary to obtain the specified quality. Any changes required to the plan will be made at no cost to the Government.

1b-04 QUALITY CONTROL ORGANIZATION.

a. The Contractor shall identify an individual within his organization at the site of the work who shall be responsible for overall management of CQC and have the authority to act in all

CQC matters for the Contractor.

b. A staff shall be maintained under the direction of the system manager to perform all

QC activities. The actual strength of the staff during any specific work period may vary to cover work phase needs, shifts and rates of placement. The personnel of his staff shall be fully qualified by experience and technical training to perform their assigned tasks, and shall be directly hired by and work for the prime Contractor.

1b-05 SUBMITTALS.

a. The Contractor shall develop procedures for purchasing materials and equipment, subcontracting, and processing shop drawings, samples, certificates, and other submittals. This procedure shall include the establishment of responsibilities to assure, at each level, adequate review and approval, timely delivery including verification procedures, and proper storage.

Submittals of the shop drawings and/or manufacturer's data shall be, as specified, in accordance with contract clauses entitled "Materials and Workmanship" and "Shop Drawings."

b. Actions shall be taken to ensure that only materials and equipment which comply with contract requirements are purchased and delivered to the job site or used in off site fabrication, unless specific deviations are approved, as specified hereinafter. The COR may request a copy of the document of transportation of the provided material.

c. The Contractor shall review the contract requirements and verify that submittals are confirming to contract compliance. Within 10 days after receipt of notice to proceed, the Contractor shall submit a submittal control document listing and scheduling all submittal items required in the contract. This document shall be in duplicate and shall be addressed through the COR to the

Contracting Officer. The control document shall include such items as construction schedules, monthly progress reports, shop drawings, manufacturer's literature, certificates of compliance, material samples, and guarantees. The document shall schedule for each item the dates of submittals. The scheduling of submittals shall be coordinated with the approved progress schedule;

the information contained therein shall be reviewed and updated at each schedule update. Adequate time shall be allowed to the US Government for approval of submittals. The Contractor shall review the listing at each progress schedule update and copies of updated documents shall be submitted through the COR to the Contracting Officer in the specified quantity. Payments to the

Contractor will not be made for material or equipment which does not comply with the Contract requirements.

d. The CQC organization shall be responsible for certifying that all submittals are in compliance with the contract requirements. Submittals to the Contracting Officer without evidence of the certification will be returned for resubmission.

e. The Contractor shall submit copies of all submittals through the COR to the

Contracting Officer.

f. Delays in the approval process shall not be the basis for consideration of a time extension when such delay is the result of the Contractor's failure to make proper and timely submittal, or make corrections in accordance with the specifications or the Contracting Officer's comments, or is a result of a resubmittal which is required because of an unsatisfactory original submittal. Approval action by the Contracting Officer will not relieve the Contractor of his responsibility for compliance with the contract but will indicate only that the general method of construction and detailing is satisfactory.

g. All proposed deviations from contract requirements shall be submitted in writing for approval by the Contracting Officer.

1b-06 CONTROL. Quality control is the means by which the Contractor assures himself that his construction complies with the requirements of the contract plans and specifications. The QC system shall include at least the following three phases of control and management for all definitive features of work:

(1) Preparatory. This control phase shall be performed before beginning work on each definable feature of work. It shall include a review of contract requirements to assure that materials, sample, and equipment conform to contract requirements and that control testing procedures are finalized. The control shall also include examination of the work area to verify that structures over which new work is to be placed conform to contract requirements; Contractor shall also verify that the required materials be on hand and properly stored. The COR shall be notified at least 24 hours in advance of each preparatory activity.

(2) Initial. This phase of control must be accomplished as soon as a representative portion of the particular feature of work has been accomplished and shall include examination of the quality of workmanship and a review of control testing for compliance with contract requirements, identification of defective or damaged materials, omission, and dimensional requirements. The

COR shall be notified at least 24 hours in advance of the initial inspection and such inspection shall be made a matter of record in the CQC documentation.

(3) Follow-Up. The follow-up phase shall be performed continuously to verify that control procedures are providing an end product which complies with contract requirements.

Adjustments to control procedures may be required based upon the results of this phase.

(4) Completion. At the completion of all work or any increment, the CQC representative shall conduct a joint review with the COR. During this review the work shall be examined, quality control shall be examined, and a list shall be developed of work not properly completed or not conforming to plans and specifications. This list shall be included in the quality control documentation with an estimated date for correction of each deficiency. The Contractor shall make sure that deficiencies be corrected prior to the contract completion date. Payment will be withheld for defective or deficient features until they are satisfactorily corrected except as otherwise provided in the contract.

1b-07 TESTS.

a. The Contractor shall perform tests specified or required to verify that control measures are adequate to provide a product which conforms to contract requirements. The

Contractor shall procure the services of an industry recognized testing laboratory or he may establish an approved testing laboratory at the project site. A list of tests which Contractor believes necessary shall be furnished to the COR. The list shall give the test name, specification paragraph containing the test requirements, and the personnel and laboratory responsible for each type of test.

The Contractor shall perform the following activities and provide the following data:

(1) Verify that the testing procedures comply with contract requirements.

(2) Verify that facilities and testing equipment are available and comply with testing standards.

(3) Check test instrument calibration data against certified data.

(4) Verify that recording forms including all pertaining documentation have been prepared.

b. Testing.

(1) The Contracting Officer reserves the right to check laboratory equipment in the proposed laboratory for compliance with the standards set forth in the contract specifications and to check the laboratory technician's testing procedures and techniques.

(2) The Contracting Officer reserves the right to utilize the Contractor's control testing laboratory and equipment to make assurance tests and to check Contractor's testing procedures, techniques, and test results at no additional cost to the Government.

(3) Cost incidental to the transportation of samples or materials will be borne by the

Contractor.

1b-08 DEFECTIVE WORK. The Contractor shall not build upon or conceal a defective work.

1b-09 DOCUMENTATION.

a. The Contractor shall maintain current records, on an appropriate form, of quality control operations, activities and tests performed including the work of suppliers and subcontractors.

These records shall include factual evidence that the required activities or tests have been performed, including but not limited to the following:

(1) Type and number of control activities and tests involved.

(2) Results of control activities or tests.

(3) Nature of defects, causes for rejection, etc.

(4) Proposed remedial action.

(5) Corrective actions taken.

b. These records shall cover both conforming and defective or deficient features and shall include a statement saying that supplies and materials incorporated in the work comply with the contract. Legible copies of these records shall be furnished to the COR weekly. The records shall cover work performed during the time period for which the records are furnished and shall be verified by persons designated by the Contractor.

SECTION IIIa

DEMOLITION AND REMOVAL

3a-01 GENERAL. Breakups of predetermined dimensions and partial or total demolition of masonry and concrete surfaces, floor, etc., must be performed in a workmanlike manner, by taking the necessary precautions or by shoring the surfaces in order to avoid damages to the structures to be left in place, accidents, inconveniences or interference. Waste material shall not be thrown down, but rather, it shall be conveyed or guided downward, after wetting it to prevent raising dust.

During demolition or removal work, the Contractor shall adopt every measure suitable to avoid deterioration of the items which may be reinstalled, or which, in the opinion of the COR, may be used at a later date. These items shall be cleaned, guarded, hauled and set neatly in the storage areas indicated by the COR. The demolition work shall be limited to the work, or to its parts, and to the dimensions specified. Reconstruction of structures demolished over and above the quantities indicated, as well as rehabilitation of work damaged as a result of lack or omission of precautions or shoring, shall be performed by the Contractor. All waste material resulting from demolition and removal shall be handled by the contractor in accordance with para. 1a-02 of these specifications.

SECTION IIIb

EXCAVATION AND BACKFILLING

3b-01 EXCAVATION.

a. General. During excavation, material suitable for backfilling shall be piled at a sufficient distance from the banks of the excavation to avoid backslides. All earthy material in excess or unsuitable for backfilling shall be delivered to the location indicated by the COR and within 10 km from work site. This does not apply to debris and rubble of all types, from which excavation material shall be rid of; these shall be disposed of at a dump, as prescribed at paragraph

1a-02. In case excavation is performed in presence of water and water level is below 20 cm height, the contractor shall remove water at his expense using the means he deems suitable. If water reaches higher levels, removal shall still be at contractor's expense only if the possible presence of groundwater is indicated on the drawings or in these specifications, and only to the extent indicated. In addition, the contractor shall prevent the access of water deriving from outside to the excavation site: in case water accumulates in excavated area, removal will be at contractor's expense. Struts and shoring shall be placed as necessary for the protection of the work and for the safety of personnel. Adequate precautions shall be taken for the protection of existing underground pipelines or electrical cables. Before any excavation is started, plans showing the approximate location of underground utility lines shall be furnished to the Contractor, upon his request. The area of excavation shall be delimited by trestles, gangplanks, and warning signs visible during night and day, to prevent injuries to persons, as prescribed by the ISPESL standards.

b. Trenches. Trenches shall be of the necessary width for the proper laying of the pipes and electric cables, and the banks shall be as nearly vertical as practicable. The bottom shall be accurately graded so as to provide bearing for the pipe on firm soil. The clear space between the pipe and the trenches wall shall not exceed 8" (20 cm.) on either side of the pipe. Further excavation will be required for housing and sealing of pipe joints. In proximity of buildings, existing underground utility lines, and wherever specifically requested in other sections of these specifications or on drawing notes, trenches shall be excavated manually.

c. Excavation for Foundation and Appurtenances. Excavation for manholes and similar structures shall be of sufficient dimensions as to leave a 12 inches (30 cm.) free space between their outer surfaces and the embankment or timber which may be used to hold the banks.

3b-02 BACKFILLING. Trenches shall not be backfilled until foundation, pipes or cables have been inspected and approved. Where, in the opinion of the COR, damage is likely to result from withdrawing of shoring, the latter shall be left in place. Trenches shall be backfilled with the excavated materials, if deemed suitable, free from large clods of earth, stones, and roots.

Backfilling material shall be deposited in 15 cm. (6") layers, thoroughly rammed until the trench is completely covered, and watered as necessary. Any material rejected by COR shall be replaced with material acceptable to the COR, coming from borrow pits located outside the US military base.

3b-03 REPAIRS. All crossings of existing paved or asphalt coated surfaces shall be cut neatly vertical and horizontal. At the completion of the work, pavement and sidewalks shall be restored to the original conditions. Damaged lawns shall be sown again and damaged plants shall be replaced with others of the same kinds. Any damage caused during the work progress shall be repaired by and at the expense of the Contractor. The Contractor shall be responsible also for injuries caused to persons as a result of non-compliance with prescribed ISPESL norms.

NOTE: In addition to above requirements, before starting the excavation, the Contractor must investigate with a metal detector furnished by himself the location of existing underground utility lines, e.g. electrical, communications, water, TV lines, or any other utility which may not be shown on the existing condition drawings, in order to prevent damaging or interrupting any existing utility. Investigation shall be done in the presence of the COR. Trial runs shall be done with the metal detector in the presence of the COR or his representative prior to the investigation.

Investigation shall be done following COR approval of metal detector. The Contractor shall mark-up on a copy of the existing conditions the exact field location of the existing utility lines which are found during excavation. This copy shall then be submitted to the COR. Excavation work performed close to existing utility lines shall be done by hand within a 3 meter radius.

CAPITOLO IVa

REINFORCED CONCRETE WORK

4a-01 MATERIALS. The structural concrete casting in the works required in these specifications shall comply with the following norms:

a. UNI EN 206, Calcestruzzo (concrete);

b. Consiglio Superiore dei LLPP, “Linee Guida sul Calcestruzzo Strutturale” (guidelines on structural concrete).

Sand shall be free from slime, and the organic matter contents shall not exceed the limit established by Ministerial Decree 3/6/1968.

Concrete shall have the following characteristics:

Lean concrete:

- 28-day characteristic cubic strength: Rck min. 15 N/mm2

Concrete for structural elements:

- 28-day characteristic cubic strength: Rck min. 30 N/mm2 (25/30 class– UNI EN 206 )

- exposure class: Rck E XC1– XC2-UNI EN 206

- water/cement ratio: max 0.60

- aggregates: normal type

- consistency type: S5

- chloride content class: Cl 0.20

If no differently required, steel to be used for reinforcement shall be type B 450C, round deformed and factory checked, with the following characteristics:

Yield tensile stress N/sq.mm. 450

Ultimate tensile stress N/sq.mm. 540

Average ratio between effective (fy_eff) and rated (fy_nom) yield tensile stresses shall be lower than 1.25.

Average ratio between ultimate and yield tensile stresses shall be between 1.35 and than

1.15.

Uniform elongation at maximum tensile strength shall be > 7,5%

4a-02 PERFORMANCE STANDARDS. In addition to what specified on the drawings and in these specifications, the requirements set forth by the following norms apply:

a. Law 5/11/1971 No. 1086

b. D.M. 14/1/2008 “Norme tecniche per le costruzioni” (technical norms for constructions)

c. Consiglio Superiore dei LLPP “Linee guida per la messa in opera del calcestruzzo strutturale e per la valutazione delle caratteristiche meccaniche del calcestruzzo indurito” (guidelines for the pourting of structural concrete and for the evaluation of the mechanical characteristics of hardened concrete).

a. Batches. Batches shall be prepared and hauled so as to avoid segregation of the components, or a premature start of curing at the time of concrete placement. The casting must be adequately compacted and vibrated. The concrete surface must be kept moist for a minimum

3 days period. Concrete shall not be placed when the temperature is less than 0 degrees C.

Dosing and preparation of concrete mix shall be performed with a concrete mixing equipment adequate to guarantee a proportion of ingredients with 3% accuracy for cement and for the only aggregates class. Mixing in truck mixer is allowed: in this case, mixing duration shall be 50 container revolutions. Mixing shall be performed in the factory before proceeding to transportation. Use of fixed concrete mixer is allowed only for castings of a volume below 1 cu m.

b. Joints. When bar joints in a stressed area cannot be avoided, they shall be made in the less stressed points following the method indicated below and spacing them adequately:

(1) Welding.

(2) Threaded sleeve.

(3) Overlapping by a 20 diameter minimum length and diverting the remaining section of each bar towards the compressed area.

The clearance between two adjacent bars at overlapping shall not exceed 6 times the bar diameter. Tension stressed bars shall not be spliced by overlapping.

c. Bent Bars. The curvature radius of the bent bars shall be no less than 6 times the bar diameter.

d. Bars Cover and Clearance between Two Adjacent Bars. In slabs, baffles and partitions the distance between the surface of any reinforcing bar and the nearest concrete exterior face shall be no less than 0.8 cm, and no less than 2 cm for beams and columns;

however, the requirements indicated on the drawings govern. The distance between adjacent reinforcing bar surfaces in every direction shall be no less than 1 time the bar diameter, and in all cases no less than 2 cm. For this purpose special spacers shall be used.

e. Stirrups shall be closed and shaped adequately to resist so that by working under tensile stress they may resist the outward movement of the longitudinal bars.

f. Removal. Form must be removed by degrees and in such a manner as to avoid dynamic actions. Forms shall not be removed prior to concrete having reached the stress value necessary for use of the structure at the time of removal. However, such a decision rests with the

COR. If other specific checks are not required, the following minimum time frame before removal of forms shall be complied with:

(1) Ordinary Concrete.

Side forms of beams and columns 3 days

Slab forms - short span 10 days

Shoring and ribbing of beams, arches, vaults, etc. 24 days

Cantilever structures 28 days.

(2) High resistance Strength Concrete Mix.

Side forms of beams and columns 2 days

Slab forms - short span 4 days

Shoring and ribbing of beams, arches, vaults, etc. 12 days

Cantilever structures 14 days.

4a-03 EXPOSED SLAB FINISHING. On all exposed slabs, the surface finishing level shall be such as not to present variations over 5 mm on every 3 m section. Concrete shall be compacted with a wooden or metallic bar and the finished surface with a wooden trowel. The surface shall be smooth and even, sand granulated, free of irregularities and of tools marks. As to walkways or where a smooth finishing is required, at the completion of the operations described above, a pouring of grout, consisting of one part of Portland cement and of no more than two parts of fine aggregate mixed with water to the consistency of a dense paint shall be applied. The grout shall be smoothed with a trowel and kept damp for the seasoning.

4a-04 TESTS.

a. Concrete Mix Tests. Concrete specimens shall be taken as prescribed at para.

11.2 of DM (Ministerial Decree) 14/01/2008 “Norme tecniche per le costruzioni” (technical norms for constructions). A test is required for 300 cu m of concrete maximum. Each test shall consist of three sample takings, each one performed on 100 cu m casting maximum. At least one sample taking shall be performed in each day or pouring. Each sample shall consist of two specifimens to be prepared and seasoned in accordance with norms UNI 12390. Shapes and dimensions of the specimens and of associated frameforms shall be as indicated in Standard UNI

12390. Whenever differences in concrete batch components may lead to assume that concrete quality does not meet the specifications requirements, the COR will have the right to order that further specimens be furnished. The specimens shall be delivered to the COR, who will send them to an official test laboratory for the evaluation of compressive strength. The costs of these tests shall be borne by the Contractor. In the event that the requirements set forth in DM of 14

Jan 2008 on the sample taking are not ascertained or in case tests on concrete placed are not possible or provide negative results, the COR will have the right to order the demolition and reconstruction of the defective portion of the structure.

b. Reinforcing Bar Tests. Out of each bar lot three bar sections of each diameter will be taken by the COR and sent to an official laboratory specialized in the steel strength tests specified in DM of 14 Jan 2008. The costs of these tests shall be borne by the Contractor. In case of negative results, the measures indicated in the above mentioned Ministerial Decree will be implemented.

4a-05 STATIC LOAD TEST. The tester will be appointed and funded by the Government under a separate contract and will be allowed to inspect the works during their performance

(tester during work course). The test shall be carried out by the tester as required by the pertaining governing Italian norms. The tester will have to provide a written test certificate. The contractor shall provide the tester with the personnel and equipment he/she deems necessary for the tests, explorations and everything else at his/her own expense.

SECTION Va

MASONRY

5a-01 GENERAL. All masonry work shall be performed with selected first quality material.

Bricks that are broken, misshapen, or of faulty baking shall not be used. Prior to use, bricks shall be soaked in water by prolonged immersion in suitable containers and not just sprinkled. Brick courses shall be true plane and with staggered joints. Bricks shall be laid on a full bed of mortar and pressed into it to force the mortar outward and to fill all joints. Joints shall be no more than

8 and no less than 5 mm. wide. For a better plaster setting during construction joints shall not be coated with stucco. Mortar batches shall be prepared on individual basis in quantities necessary for immediate use and as far as possible close to the place where they will be used. Mix residues which, for some reason, have not been used immediately, shall be discarded. Bricks of uniform baking, shape and color shall be used for exterior sides of face brick masonry. This type brick shall be placed so as to obtain perfectly even course, taking into consideration also the thickness and offsetting of vertical joints. Joints in face brick masonry shall not exceed 5 mm in thickness and shall be scraped, cleaned, and struck-off flush and smooth by means of a suitable rod iron.

5a-02 INTERNAL AND EXTERNAL PARTITIONS. Partitions shall be erected in a workmanlike manner with horizontal courses perfectly plumb and true to line so as to avoid excessive thickness of plaster. When a partition is to be extended to the ceiling, the COR may deem necessary that, after sufficient time, its top surface be adequately wedged with scales and cement. The lintels of opening shall be realized with prefabricated and reinforcing tiles.

In accordance to point C.7.3.6.3 of D.M. 14.01.08 instructions, for partitions with thickness grater than 10 cm, horizontal mortar joints will be reinforced with steel bars at 500 mm maximum distance.

a. Masonry wall of tile blocks, below 12 cm thickness:

Masonry wall made of tile blocks (not lightened), horizontal hole, with CE mark, 1st category system 2+ in compliance with UNI EN 771-1, laid with mortar cement of M5 class, guaranteed composition type (D.M. 14 Gennaio 2008), horizontal and vertical broken joint, thickness 5-15 mm.

b. Masonry wall of tile blocks, 20-25 cm thickness:

Masonry wall made of lightened tile blocks, dimension 25x20x19 cm, having alveolar mass of

1450 daN/m3 density, vertical hole with 6 rows of air chambers, with CE mark, laid with mortar cement of M3 type of guaranteed composition (D.M. 14/01/2009), horizontal and vertical broken joint, thickness 5-15 mm.

Masonry characteristics:

- Acoustics insulation with plaster (cm 1,5 + cm 1,5) R’w: <53 db (calculated value)

- Transmittance U: without plaster 0,659 W/m2K

- Vapor permeability without plaster: a = u = 20·10-12 daN/ms·Pa (norm UNI 10351 for the specific bulk density)

- Compressive strength in hole direction: fbk > 5 N/mm2

- Compressive strength in masonry plane perpendicular to hole direction: > 1,5 N/mm2

c. Masonry wall of concrete blocks, 25 or 30 cm thickness:

Raw walls to be plastered, without waterproofing, built with high strength blocks of expanded clay, type LECA compressed by vibration, made with selected and optimized granulometry, provided of CE mark (UNI EN 771/3), 2+ attestation level, with factory controlled production certified in accordance with Directive 89/106/EEC. The manufacturer shall have obtained the certification of Quality Management System according to UNI EN ISO 9001 and product certification according to the ANPEL specific. The vertical reinforcing beam and lintels shall be made with special blocks having the same characteristics of the main blocks.

TECHNICAL CHARACTERISTICS

CHARACTERISTIC 25 CM MASONRY

THICKNESS

30 CM MASONRY

THICKNESS

RULE

REFERENCE

Block Type LECA Raw block:

4 ribs

Lightened Raw block:

4 ribs

UNI EN 772-16

Block Dimensions

(lengthxthicknessxheight) mm 492x247x192 mm 492x297x192 UNI EN 772-16

Size tolerances D3 D3 UNI EN 772-16

Thickness of external rib mm 30 mm 30 UNI EN 772-16

Weight in ambient conditions Kg 19 Kg 23

Face planarity < 2 mm < 2 mm UNI EN 772-20

Configuration Gruppo 2 Gruppo 2 UNI EN 1996-1-1

Dry concrete volume mass Kg/ m3 1350 +/- 10% Kg/ m3 1350 +/- 10% UNI EN 772-13

Gross concrete volume mass Kg/m3 783 +/- 10% Kg/m3 783 +/- 10% UNI EN 772-13

Drilling rate % 42 % 42

Average normalized compressive strength

> 4,5 N/mm2 > 4,0 N/mm2 UNI EN 772-1

Shear adhesion 0,15 N/mm2 0,15 N/mm2 UNI EN 1052-3

Water absorption through capillarity < 10,2 G/m2s < 10,2 G/m2s UNI EN 772-11

Dimensional stability:

humidity movements

< 0,8 Mm/m < 0,8 Mm/m UNI EN 772-14

Fire resistance REI Min 180 REI Min 180 Certified

Fire reaction EUROCLASSE A1 EUROCLASSE A1 UNI EN 13501-1

Dry thermal resistance R 0,677 M2k/ W 0,762 M2k/ W UNI EN ISO 6946

Dry thermal transmittance U (K) 1,181 W/m2K 1,073 W/m2K UNI EN ISO 6946

Vapor diffusion coefficient 5/15 5/15 EN 1745

Aerial soundproofing dB 52 dB 52 Analytic

Dangerous substances According to D.M.

14.05.96

According to D.M.

14.05.96

Masonry weight 263 kg/m2 294 kg/m2 Analytic

5a-03 LOAD-BEARING WALLS. For these walls, refer to the “Norme tecniche per le costruzioni” included in the D.M. (Ministerial Decree) dated 14 Gennuary 2008, and pertaining

Instruction Circular. In particular, the following prescriptions shall be kept into consideration.

a. Masonry wall made with artificial resistant elements of concrete blocks, 25 cm thickness:

Raw walls to be plastered, without waterproofing, built with high strength blocks of expanded clay, type LECA compressed by vibration, made with selected and optimized granulometry, provided of CE mark (UNI EN 771/3), 2+ attestation level, with factory production controlled, certified in accordance with Directive 89/106/EEC. The manufacturer shall have obtained the certification of Quality Management System according to UNI EN ISO 9.001 and product certification according to the ANPEL specifications. The vertical reinforcing beam and lintel will be realized with special blocks having the same characteristics of the main blocks.

TECHNICAL CHARACTERISTICS

CHARACTERISTIC 25CM MASONRY

THICKNESS

REFERENCE

NORMS

Block Type LECA seismic block UNI EN 772-16

Dimensions (lengthxthicknessxheight) mm 492x247x192 UNI EN 772-16

Size tolerances D3 UNI EN 772-16

External rib thickness mm 36 UNI EN 772-16

Weight in ambient conditions Kg 21

Face planarity < 2 mm UNI EN 772-20

Configuration Gruppo 2 UNI EN 1996-1-1

Dry concrete volume mass Kg/ m3 1350 +/- 10% UNI EN 772-13

Gross concrete volume mass Kg/m3 1161 +/- 10% UNI EN 772-13

Rate of drilling % 14

Average normalized compressive strength

> 6,0 N/mm2 UNI EN 772-1

Shear adhesion 0,15 N/mm2 UNI EN 1052-3

Water absorption through capillary < 10,2 G/m2s UNI EN 772-11

Dimensional stability: movement due to humidity

< 0,8 Mm/m UNI EN 772-14

Fire resistance REI Min 180 Certified

Fire reaction EUROCLASSE A1 UNI EN 13501-1

Dry thermal resistance R 0,689 M2k/ W UNI EN ISO 6946

Dry thermal transmittance U (K) 1,164 W/m2K UNI EN ISO 6946

Vapor diffusion coefficient 5/15 EN 1745

Aerial soundproofing dB 54 Analytic

Dangerous substances According to D.M.

14.05.96

Masonry weight 316 kg/m2 Analytic

b. Mortars: Mortars to be used for the construction of the load-bearing walls shall be of the M10 guaranteed performance type, as per D.M. dated 14 January 2008.

SECTION Ve

MISCELLANEOUS METALWORK

5e-01 SCOPE. The work covered by this section of the specifications consists in providing all plant, labour, equipment and accessories and performing all operations in connection with the furnishing and installation of miscellaneous metal work..

5e-02 GENERAL. As much as possible the materials used in construction of the various items as specified herein shall be those used in standard manufacture and as published in catalogues of the manufacturer. Upon request, complete descriptive literature describing the items, samples and shop drawings shall be submitted for approval of the Contracting Office prior to shipment to the project site. All items shall be installed in conformance with the manufacturer's recommendations and directions.

5e-03 FLASHING, DOWNSPOUTS AND GUTTERS.

a. Flashings. Flashings shall be of the material and shall have the dimensions indicated on the drawings. Exposed edges of all flashings shall be folded back 12 mm to provide stiffness. Do not make lengths of metal counterflashing exceed 3.00 m. Form the flashing to the required shapes before installation. Seal joints to prevent penetration of water. Provide metal flashing for all pipes, ducts, and conduits projecting through the roof or wall surfaces and for equipment supports, in addition to the locations required by the drawings.

b. Gutters. Attached gutters shall be constructed of 10/10 mm minimum copper sheet metal as shown on the drawings. A flashing of sheet metal on the interior side of the gutter shall extend under the roof covering not less than 15 cm. Cross joint shall be soldered with laps not less than 25 mm wide. Outlets shall be provided with tubes of the length indicated or required, securely soldered to the gutter. The gutter shall be sloped towards the outlets allow a quick water flowing.

The gutter shall be solidly held by metal supports consisting of moulded plates fixed every 80 cm to the structure. The supports shall be reinforced by metal straps consisting of moulded plates 30 mm wide and 2 mm thick fixed with stainless steel screws. Fabricate fasteners and support with metals compatible with gutters.

c. Downspouts. Downspouts shall be copper sheet, 8 mm minimum thickness, of the design and size indicated on the drawings. Except as hereinafter specified, downspouts shall be provided in sections approximately 3 m long. They shall be joined by lapped and soldered joints, and shall have 4 cm wide slip joints. The downspouts shall be installed accurately vertically and as shown on the drawings; they shall also be firmly secured to the walls by means of straps approximately 2 mm thick, located at the upper and lower extremities of the downspout, as indicated on the drawings or as required. Basket strainers of 1.6-mm diameter stainless steel wire shall be set in loosely at gutter openings into downspouts.

c. Wood Block. Provide where required in roof construction pre-treated wood block of the same height as the thickness of…