Applicable_Sections_of_Master_Specifications.pdf

Section 01100 1

SECTION 01100

GENERAL CONDITIONS

PART 1 – APPLICABLE NORMS

1.1 The Italian norms for building works and the instructions of materials suppliers shall be strictly observed for the execution of the works. In addition the general safety regulations for construction and the Base regulation for traffic, accidents and fire fighting shall be observed as follows:

a. UNI Norms – Demolition works; masonry works, pavement works, concrete reinforcement bars, structural steels, pipes, painting, plumbing, heating system and electrical system.

b. C.N.R.; ASTM; AASHTO norms – Aggregates, bitumen, bituminous mixtures and road works in general.

c. Legislative Decree No. 494 dated 14 August 1996.

d. Legislative Decree No. 528 dated 19 November 1999.

e. CEI norms in force at tender date.

f. UNEL norms in force at tender date.

g. ENPI norms in force at tender date.

h. NEC norms in force at tender date.

i. AFPM 91-210 Contract Safety.

j. AFI 91-202 Safety Program Management.

The manuals and regulations relative to paragraphs i and j, will be available for review at the Engineering Office, Bldg 407 of Aviano Air

Base, during normal working hours, from Monday to Friday, from 0800 to

1700 hrs. Further clarifications regarding the type of materials and the work specified in the Schedule to Work items or indicated in the drawings, will be provided during the site survey scheduled prior to the submittal of proposal.

1.2 CERTIFICATION OF COMPLIANCE WITH ITALIAN LAWS

1.2.1 Static Load Testing

The Contractor shall comply with the pertinent articles of Italian Law

1086 dated 5 November 1971, and all subsequent revisions. The Contractor shall be fully responsible for construction, supervision, static load tests, final testing, and for all costs associated with this procedure.

Article 2 of Law 1086, as amended, requires the static load tests to be performed under the supervision of an engineer or architect registered on the National Professional Rolls of Italy for at least ten years (10).

Prior to performing the tests, submit to the Contracting Officer the names and certified credentials of proposed testing personnel, engineer(s) or architect(s) they propose to perform the static load testing.

2 Section 01100

1.2.2 Mechanical and Electrical Work Certifications

As a condition of final acceptance of the work, the Contractor shall submit to the Contracting Officer a certificate of compliance for all contract work certifying that all electrical and mechanical work complies with Law No. 46 dated 5 March 1990, and that the provided work is adequate and safe for the designated use.

1.2.3 Other Certifications

In addition to the certifications listed above, the Contractor shall provide all other certifications and testing required by Italian Law.

Such certifications may include but are not limited to the following:

a. Certificate of compliance for electrical systems in accordance with CEI regulations and with D.P.R. No.547 dated 27 April 1955 on accident prevention.

b. Certificate of compliance for heating systems above 100,000 kcal/hr in accordance with Italian Law No. 373 dated 30 April

1976.

c. Certificate of compliance for fire prevention systems in accordance with Ministerial Decrees dated 16 February 1982 and 8

March 1985.

d. Certificate for elevator systems test in accordance with Italian

Law No. 1415 dated 24 October 1942.

PART 2 – MATERIALS

2.1 All materials shown on drawings and listed in the Schedule of Work

Item or anyhow necessary for the accomplishment of project will be furnished and installed by the Contractor except those shown on drawings which will be furnished and installed by the U.S.A. Government and installed by the Contractor.

2.2 DEMOLITION AND INTERVENTION WORK ON EXISTING STRUCTURES

During possible partial demolition or intervention operation of bearing structures the Contractor shall provide for the shoring of existing structures, for the safety of personnel and building, being responsible for any accident and/or damage. Shoring will be performed in a way to assure the integral conservation of structures not to be demolished or modified. Shoring shall be inspected by Contracting Officer’s Technical

Representative prior to proceeding with any demolition work of structural elements.

2.3 REMOVED MATERIALS

The materials to be removed, (specified on drawings and/or on the

Schedule of Work Items) shall be handled as follows:

2.3.1 Unsalvageable materials

Shall be transported to public dump in accordance with Italian communal norms in force. The Contracting Officer’s Technical Representative shall determine which materials are unusable. Under no circumstances will the

Contractor attempt to sell or otherwise use such material unless and until he first obtains, the necessary permits, licenses etc. from the

Section 01100 3

Italian Government Officials and will hold the U.S. Government free and harmless from his failure to do so.

2.3.2 Salvageable materials

Shall be loaded, unloaded and stacked at a warehouse of Aviano Air Base.

The Contracting Officer’s Technical Representative shall determine which material is salvageable and the storage location. Maximum distance will be 15 km.

2.3.3 Materials to be reused in the project

Shall be removed with care and stored by the Contractor on site, after inspection of operating state of such fixtures which will be done jointly with the Contracting Officer’s Technical Representative. The Contractor shall be fully responsible for preservation of such fixtures and before their installation, in the location he shall provide for cleaning and rehabilitation work.

2.4 SELECTION OF EQUIPMENT, MATERIALS AND COLORS

The Contracting Officer’s Technical Representative will select equipment, materials and colors from among the charts and factory samples which will be submitted by the Contractor and approved by the Government in accordance with the indications of the project documents. It will be the

Contracting Officer’s Technical Representative’s option to request all samples and catalogues of materials to be incorporated in the project to ensure the satisfactory and proper completion of the work. All samples shall be returned to Contractor.

2.5 SUBMITTALS

This paragraph applies only to those items not subject to the “brand name or equal” provision of the contract and listed in AF Form 3052. Within

15 days from the date of notice to proceed, or in accordance with the prescriptions given by the Contracting Officer, the Contractor shall submit Contracting Officer’s Technical Representative’s approval the data requested by the project documents and listed in the paragraph entitled

“Material Approval” in order to ascertain that the material corresponds to the technical characteristics of the project. The submittals consisting of AF Form 3000, and catalog contracts (4 copies), beside the samples, will be in English or Italian with the English translation attached. The list preparation shall be coordinated with the work schedule keeping in mind that the Government needs at least 15 days for the approval. Every disapproved item shall be resubmitted following the same procedure. A copy of the AF Form 3000 and relative attachments will be returned to the Contractor. No work will be started prior to obtaining the approval for the proposed material and equipment. The approval of submittals does not relieve the Contractor of responsibility for proper application and installation of the items, of other evident or hidden defects. Shop drawings, for electric equipment shall include construction drawings, diagrams and schematics for power circuits and control circuits, and component reference list.

2.6 USE OF BRAND NAMES IN SPECIFICATIONS

Unless otherwise specifically provided on this contract, reference to any equipment, material article or patented process by trade name, make or cat number shall be regarded as establishing a standard of quality and

4 Section 01100 shall not be construed as limiting competition, and the Contractor may, at his option use any equipment, material, article, or process which, in the judgment of the Contracting Officer’s Technical Representative, is equal to that named. The Contractor shall furnish to the Contracting

Officer’s Technical Representative all required data and samples as may be called for the these technical provisions or which the Contracting

Officer’s Technical Representative determines necessary for approval prior to use of the items during work performance.

2.7 “EQUIVALENT” ITEMS PROPOSED BY CONTRACTOR

If the Contractor intends to propose “brand names” different than the ones specified by U.S. Government, he will clearly indicate the

“equivalent” proposed item, the manufacturer, type, catalog No., etc. in the List of Equivalent Proposed Items attached to AF Form 3052 which shall be returned to the Government together with the proposal. Each equivalent item listed shall be supported by the relative technical documentation (catalog cuts, certificates, technical descriptions, calculations, etc.) in order to prove the equivalency of the technical characteristics of the product listed in the project document. Such documentation shall also be attached to the proposal.

2.8 INFORMATION DATA

Prior to work completion date and if expressly requested by project documents will submit the following information data in English and

Italian:

2.8.1 Manufacturer’s literature

Catalog extracts for all items (materials and equipment) furnished, in accordance with project documents.

2.8.2 Parts List

List of furnished items, in accordance with project documents:

a. Item description

b. Current unit price

c. Reference to manufacturing Firm

2.8.3 Manufacturer’s Address

List of materials and equipment suppliers, in accordance with project documents.

a. Firm Name

b. Complete address and telephone number

c. Reference to parts list

2.8.4 Operation and Maintenance Manuals

At work completion date, the Contractor shall submit three (3) copies of operation and maintenance manuals of all equipment installed.

Section 01100 5

2.8.5 Operation Test Reports

In accordance with project documents, prior to work completion date, the

Contractor shall perform balancing and testing of each system installed and will submit three (3) copies of testing report containing recorded data of readings performed during tests.

PART 3 – SITE CONDITIONS

3.1 WORKING HOURS

Normal working hours authorized on base, are from 0800 to 1700 hrs., Monday through Friday. Any working hours different from the authorized hours must be previously approved by the Contracting Officer.

3.2 UTILITY CUT-OFF

When interruption of existing utilities is deemed necessary for the installation of the lines or equipment, the Contractor shall submit a written request, to the Contracting Officer of his authorized representative for approval ten (10) days prior to his scheduled starting of work. For the electrical cut-off the request shall be submitted (10) ten days prior the scheduled starting of work. Such interruption shall not be started before receipt of the approved request, nor shall interruptions request be submitted at the end of the week (from Friday through Sunday). The request shall state the duration of interruptions and the description of work to be done.

3.3 STORAGE SHED

It will be Contractor’s option to provide one or more storage sheds to store materials and work tools. The available area, for the assembly of such shed, shall be indicated by the designated representative of the

Contracting Officer’s Technical Representative. At work completion the shed shall be disassembled and the area shall be restored to its original condition.

3.4 AIRFIELD SAFETY TRAINING

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

3.5 TRANSPORTATION OF PERSONNEL AND MATERIALS

It will be the Contractor’s responsibility to transport the personnel to and from the job site and to load, transport, unload and place all supplies, materials and equipment involved in this contract.

3.6 UTILITIES

Electric power, existing grounding system and water available in the area, will be made available to the Contractor by the U.S. Government.

Connections and disconnections will be at Contractor’s expense and utilities are to be restored to their original condition at no extra cost to the Government. All damages caused, if any, to the existing utilities will be repaired immediately at Contractor’s expenses, also in case that such repairs are made by Government’s personnel and as directed by the

6 Section 01100

Contracting Officer’s Technical Representative. Before starting the works, the Contracting Officer will indicate the point wherefrom water and electric power will be taken. The Contractor will be entitled to provide for himself, if desired, a generating set, and his own expense.

The electrical characteristics of available power will be indicated in project documents.

3.7 TOILET FACILITY

The toilet facilities available in the vicinity of site of work may be used by Contractor’s personnel provided there are no instructions to the contrary in the project documents.

3.8 EXCAVATIONS

The Contractor shall initiate no excavation work prior to receiving an approved AF Form 103. This form will be prepared by U.S. Government personnel.

PART 4 - LABOR

All installation and construction operations, calibrations and tests during service, etc, shall be performed in a workmanlike manner by skilled tradesmen being qualified to perform the most difficult operations pertaining to their respective craft. The use of common labor for operations normally assigned to skilled tradesmen will not be accepted.

PART 5 – DEFINITIONS

As used throughout this master specification set the terminologies used such as: project, drawings, project documents and documents mean the additional specifications. Schedule of Work Items, Drawings and other documents which compose the specific individual project to be performed and for which a proposal is solicited separately.

PART 6 - ORDER OF PRECEDENCE

In case of conflict between this master specification set and the individual project documents, the difference shall be resolved by giving precedence to the individual project documents.

-- End of Section --

ASHE 10-1102

SECTION 01101/R

SECTION 01101/R

PROJECT SIGN

On page 2 change the name of Project on the sign as follows:

“ End of Section”

ASHE 10-1102

CNS VISITOR CENTER AT GATE 9, FAC. 14647

AREA F, AVIANO AIR BASE, AVIANO, ITALY

Section 02220 1

SECTION 02220

SITE DEMOLITION

PART 1 - GENERAL

1.1 REFERENCES

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

1.1.1 National Fire Protection Association (NFPA):

NFPA No. 241 (2000)Standard for Safeguarding

Construction, Alterations, and Demolition

Operations.

1.1.2 Safety at Work Places:

Law Decree 14 August 1996 “Construction Site Regulations”, Supplements and Amendments.

1.1.3 Trash Disposal:

Law Decree 15 November 1993.

Law Decree 5 February 1997 No. 22 (Decreto Ronchi).

Law Decree 8 November 1997 No. 389.

Decree 1 April 1998 No. 145.

Decree 28 April 1998 No.406, Environmental Department.

Decree 24 June 1998 No. 261.

Circular 4 August 1998 No. GAB/DEC/812/98.

1.1.4 Asbestos Material Treatment:

Law 27.03.1992, No. 257 Norms concerning the discontinuance of the use of the asbestos.

Ministerial Decree 06.09.1994 Norm and technical methodologies for compliance with Law No. 257, dated 27

March 1992, Art. 6, comma 3, and Art. 12, comma 2 concerning the concerning the discontinuance of the use of the asbestos.

Legislative Decree 10.09.1994, No. 626 Implementation of the CEE requirements for improving safety and health of workers on work site.

Legislative Decree 17.03.1995, No. 114 Implementation of the requirements 87/217/CEE concerning the prevention and reduction of the environment pollution due to the asbestos.

Circular No. 7 Explanatory circular of the Ministerial dated 12.04.1995 Decree dated 06.09.1994.

Ministerial Decree 14.05.1996 Norms and technical methodologies for reclamation actions as stated by Law No.

2 Section 02220

257, dated 27 March 1992, Art.5, comma 1, letter f) concerning: “Norms for the discontinuance of the use of the asbestos”.

Legislative Decree 14.08.1996, No. 494 Implementation of the requirements 92/57/CEE concerning the minimum safety and health requirements to be accomplished in temporary or mobile work sites.

Legislative Decree 05.02.1997, No. 22 Implementation of the requirements 1/156/CEE regarding waste, 91/689/CEE regarding hazardous waste and

94/62/CEE regarding packaging and waste packaging.

Ministerial Decree 12.02.1997 Criteria for homologation of products replacing the asbestos.

Ministerial Decree 26.03.1998 List including the name of the firms and list of the materials replacing the asbestos that have obtained the homologation.

Decree 20.08.1999 Increase of the norms and technical methodologies for reclamation actions as stated by Law No. 257, dated 27 March

1992, Art.5, comma 1, letter f, concerning: “Norms for the discontinuance of the use of the asbestos”.

Deliberation 14.03.2001 Modification to the deliberation dated 1

February 2000, protocol No. 002/CN/ALBO, concerning “Criteria to be enrolled in the

Albo Categoria 10: Reclamation of asbestos containing goods” (Deliberation No.

004/CN/Albo).

Decree 25.07.2001 Rectification of Decree 20 August 1999 concerning “Increase of the norms and technical methodologies for reclamation actions as stated by Law No. 257, dated 27

March 1992, Art.5, comma 1, letter f) concerning norms for the discontinuance of the use of the asbestos”.

Decree of the Council of Regulations for the determination of the

Ministers President model and the procedures to keep the

10.12.2002, No. 308 register in case of mesothelioma due to the asbestos according to Legislative

Decree No. 277, dated 15 August 1991, Art.36, comma 3.

Ministerial Decree 13.03.2003 Criteria of admissibility of the wastes in the dump site.

REGIONAL NORMS AND LAWS

Section 02220 3

Regional Law Implementation of the national laws dated 03.09.1996, No. 039 concerning the discontinuance of the use of the asbestos.

Regional Law Directions concerning environment, dated 09.11.1998, No. 013 territory, economic and productive activities, health and social care, education and culture, state employment, state real property, regional financial companies, intervention on support of the

Middle Europe Enterprise, treatment of personal data, and reconstruction of devastated by earthquake areas.

Regional Law Directions concerning surveillance, dated 12.09.2001, No. 022 prevention, and information of situation with asbestos danger and correlated regional interventions.

1.2 SUBMITTALS

Statements: A demolition plan giving the procedures proposed for the accomplishment of salvage, demolition and removal work shall be submitted to the Contracting Officer’s Technical Representative and approved before work is started. The procedures shall provide for careful removal and disposition of materials specified to be salvaged and coordination with other work in progress. The procedures shall include a detailed description of the methods and equipment to be used for each operation, the sequence of operations and in case of demolition of adherence built constructions or in case of partial demolitions they shall also include the calculation of provisional structures which are to bear possible walling and, if the size of the work requires it, also a geotechnical report about the adjoining buildings.

1.3 GENERAL REQUIREMENTS

The work includes the demolition and/or the removal of all construction indicated or specified. All materials resulting from demolition work, except as indicated or specified otherwise, shall become the property of the Contractor and shall be removed from the limits of Government property. Trash and debris shall be removed from the station daily, unless otherwise directed, and shall not be allowed to accumulate on the site. Such materials which, in the opinion of the Contracting Officer’s

Technical Representative, cannot practically be removed daily shall be neatly stored on the site where directed by the Contracting Officer.

1.4 ASBESTOS

Asbestos containing materials shall be treated in compliance with the

Specification 13281 “Engineering Control of Asbestos Containing

Materials” of this Contract Document.

1.5 DUST AND DEBRIS CONTROL

Dust resulting from salvage, demolition and removal work shall be controlled to prevent the spread of dust and avoid creation of a nuisance in the surrounding area. Use of water will not be permitted when it may result in, or create, hazardous or objectionable conditions such as ice, flooding and pollution.

4 Section 02220

1.6 PROTECTION

1.6.1 Protection of Existing Work from Damage

Protect existing work which is to remain in place, to be reused, or to remain on the property of the Government by temporary covers, shoring, bracing and supports. Repair such items which are damaged during performance of the work or replace with new. Do not overload structural elements. Provide new supports or reinforcement for existing construction which is weakened by demolition or removal work.

1.6.2 Weather Protection

The interior of the building and all materials and equipment shall be protected from the weather at all times. Where removal of existing roofing is necessary to accomplish work, materials and workmen necessary to provide adequate and approved temporary covering of exposed areas shall be kept in readiness at all times. Temporary coverings shall be attended as necessary to insure their effectiveness and prevent displacement.

1.6.3 Protection of the Trees and Shrubs

Protect trees and shrubs within the project site that might be damaged during demolition, and that are indicated to be left in place. Restore trees scarred or damaged by Contractor equipment or operations to a satisfactory condition or replace them as determined by the Contracting

Officer’s Technical Representative.

1.6.4 Facilities

Protect all electrical and mechanical services and utilities. Where removal of existing utilities and pavement is specified or indicated, provide approved barricades, temporary covering of exposed areas and temporary services or connections for electrical and mechanical utilities.

1.6.5 Protection of Personnel

Where pedestrians’ and drivers’ safety is endangered in the area of work removal, barricades for traffic shall be used and advance notice shall be given to the Contracting Officer prior to beginning any such work.

1.7 USE OF EXPLOSIVES

Use of explosives will not be permitted.

1.8 BURNING

Burning will not be permitted.

1.9 RELOCATIONS

Perform the removal and reinstallation of relocated items as indicated with workmen skilled in the trades involved. Repair items to be relocated which are damaged or replace damaged items with new undamaged items as approved by the Contracting Officer’s Technical Representative.

Section 02220 5

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.1 EXISTING ITEMS TO BE REMOVED

The existing temporary metal building shall be dismantled and will remain

Contractor’s property.

3.2 DISPOSITION OF MATERIAL

3.2.1 Title to Materials

Title to all materials and equipment to be removed, except as specified otherwise, is vested in the Contractor upon receipt of notice to proceed.

The Government will not be responsible for the condition, loss or damage to such property after notice to proceed.

3.2.2 Material to be salvaged

Salvaged material shall be stored as directed by the Contracting Officer.

3.2.3 Reuse of materials and equipment

Carefully remove and store materials indicated to be reused or relocated to prevent damage and reinstall as the work progresses.

3.3 CLEAN-UP

3.3.1 Debris and Rubbish Control

Debris and rubbish shall be removed each day and transported in a manner that will prevent spillage on streets or adjacent areas. Clean up spillage from streets and adjacent areas.

3.3.2 Regulations

National, Provincial, and local regulations regarding hauling and disposal shall be complied with.

-- End of Section –-

Section 02821 1

SECTION 02821

CHAIN LINK FENCES AND GATES

PART 1 – GENERAL

1.1 REFERENCES

ITALIAN NATIONAL INSTITUTE FOR THE UNIFICATION OF STANDARDS (UNI)

PUBLICATIONS:

UNI 3995 (1958) Single-twist steel netting, with rhomboidal mesh

UNI EN 10240 (1999) Internal and/or external protective coatings for steel tubes - Specification for hot dip galvanized coatings applied in automatic plants.

UNI EN 10217-1 (2002) Welded steel tubes for pressure purposes - Technical delivery conditions -

Non-alloy steel tubes with specified room temperature properties

UNI ISO 9227 (1993) Corrosion test in artificial atmospheres. Salt spray tests

1.2 DELIVERY, STORAGE, AND HANDLING

Deliver materials to site in an undamaged condition. Store materials off the ground to provide protection against oxidation caused by ground contact.

PART 2 – PRODUCTS

2.1 CHAIN-LINK FENCING AND ACCESSORIES

Materials shall be in accordance with detailed specifications as referenced and other requirements as specified.

2.1.1 Fabric

UNI 3995, zinc-coated steel, 3.8 mm core wire size. Mesh size, 50 mm.

Provide selvage twisted and barbed at both selvages. Height of fabric, as indicated.

2.1.2 Gates

Gate fabric, as specified for fencing fabric. Coating for steel latches, stops, hinges, keepers, and accessories. Gate latches, plunger bar type.

Gate leaves less than 2.4 m wide shall have truss rods or manufacturer’s standards, except that welding will be not be permitted. Intermediate members as necessary to provide rigid construction, free from sag or

2 Section 02821 twist. Gate leaves less than 2.4 m wide shall have truss rods or intermediate braces. Attach gate fabric to the gate frame in accordance with the manufacturer’s standards, except that welding will be not be permitted. Arrange padlocking latches to be accessible from both sides of the gate, regardless of latching arrangement.

2.1.3 Posts, Top Rails, and Braces

UNI ISO 9227, UNI EN 10240, UNI EN 10217-1. Line posts, end, corner, and pull posts shall be first class steel pipe. Braces and rails shall be

Class I, steel pipe minimum size listed for each class and grade.

2.1.4 Fencing Accessories

Provide wire ties constructed of the same material as the fencing fabric.

2.1.5 Concrete

Provide as specified in Section 03300, “Cast-In-Place Concrete.”

PART 3 - EXECUTION

3.1 SITE PREPARATION

3.1.1 Excavation

Depth of post embedment at Contractor’s option.

3.2 FENCE INSTALLATION

Install fence in accordance with fence manufacturer’s written installation instructions.

3.2.1 Post Spacing

Provide line posts spaced equidistantly apart, not exceeding 3 m on center. Provide gate posts spaced as necessary for size of gate openings.

Do not exceed 152 m on straight runs between braced posts. Provide corner or pull posts, with bracing in both directions, for changes in direction of 0.26 rad or more, or for abrupt changes in grade.

3.2.2 Post Setting

Set posts plumb.

3.2.3 Bracing

Brace gate, corner, end, and pull posts to nearest post with a horizontal brace used as a compression member, placed at least 300 mm below top of fence, and a diagonal truss rod and truss tightner used as a tension member.

3.2.4 Top Rails

Install top rails before installing chain-link fabric. Pass top rail through intermediate post caps. Provide expansion coupling in accordance with manufacturer’s installation instructions.

Section 02821 3

3.2.5 Bottom Tension Wires

Install bottom tension wires before installing chain-link fabric, and pull wires taut. Place bottom tension wires within 200 mm of respective fabric line.

3.2.6 Fabric

Pull fabric taut and secure fabric to top rail and bottom wire, close to both sides of each post and at maximum intervals of 600 mm on center.

Secure fabric to posts using stretcher bars, ties or clips spaced 375 mm on center, or by integrally weaving to integral fastening loops of end, corner, pull, and gates posts for full length of each post. Install fabric on opposite side of posts from area being secured. Install fabric so that bottom of fabric is 50 mm above ground level. Install fence fabric to provide approximately 50 mm deflection at center of fabric span between two posts, when a force of approximately 10 kg is applied perpendicular to fabric. Fabric should return to its original position when force is removed.

3.3 ACCESSORIES INSTALLATION

3.3.1 Gates

Install wing gates to swing through 90 degrees from closed to open.

3.3.2 Padlocks

Provide padlocks for gate openings and provide chains that are securely attached to gate or gate posts. Provide padlocks keyed alike, and provide two keys for each padlock.

3.4 CLEANUP

Remove fencing materials and other debris upon completion of construction.

-- End of Section --

Section 03300 1

SECTION 03300

CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.1 APPLICABLE PUBLICATIONS

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

A 185-80 Welded Steel Wire Fabric for Concrete Reinforcement (Rev. A).

TI 809-04 (31 December 1998) Seismic Design for Buildings.

ITALIAN LAWS

Ministerial Decree dated 9 Jan 1996 Technical Norms for the Calculations, Execution and Testing of Normal and

Prestressed Reinforced Concrete Structures and Metal Structures.

dated 16 Jan 1996 Technical Norms for Constructions in

Seismic Zone.

Italian Law No. 1086 dated 5 Jan 1971 Italian Norms for the Execution of reinforced Concrete Structures and Steel

Structures.

Italian Law No. 64 dated 2 Feb 1974 Technical Norms for Constructions in

Seismic Zone.

Ministerial Circular No.21745 dated 30 July 1981 “Italian Law No.219 dated 14 May 1981”.

Norms to Repair and Consolidate Buildings by Seismic Event.

dated 20 Nov 1987 Technical Norms for the Design, Execution and Test of Masonry Buildings and for their Strengthening.

dated 14 Feb 1992 Technical Norms for the Calculations, Execution and testing of Normal and

Prestressed Reinforced Concrete Structures and metal Structures.

dated 16 Jan 1996 Technical Norms for Safety Test of the

Constructions, Load, and Live Loads.

2 Section 03300

Ministerial Circular No.65 dated 10 Apr 1997 Instruction for the application of

“Technical Norms for Constructions in

Seismic Zones” dated 16 Jan 1996”.

National Research Council(CNR-UNI)

Publication No. 10011/88 Steel structures; instruction for calculation, execution, testing, and maintenance.

ITALIAN NATIONAL INSTITUTE FOR THE UNIFICATION OF STANDARDS (UNI)

PUBLICATIONS

UNI EN 10002-1 (1992)Metallic materials. Tensile testing.

Method of test (at ambient temperature).

UNI EN 12390-1 (2002) Testing hardened concrete. Shape, dimensions and other requirements for specimens and moulds.

UNI EN 12390-2 (2002) Testing hardened concrete. Making and curing specimens for strength tests.

UNI EN 12390-3 (2003) Testing hardened concrete.

Compressive strength of test specimens

UNI 6131 (2002) Drawing samples hardened concrete.

UNI 6393 (1988) Field Quality Control of Fresh

Concrete.

UNI EN 12350-7 (2002) Testing fresh concrete. Air content

- Pressure methods.

UNI ENV 10080 (1997) Steel for the reinforcement of concrete. Weldable ribbed reinforcing steel B500. Technical delivery conditions for bars, coils and welded fabric.

UNI EN 934-2 (2002) Admixtures for concrete, mortar and grout. Concrete admixtures. Definitions, requirements, conformity, marking and labeling.

UNI EN 206-1 (2001) Concrete. Specification, performance, production and conformity.

UNI 8520 (1999)Aggregates for Concrete Mixes.

Definition, classification and properties.

UNI EN 13055-1 (2003) Lightweight aggregates. Lightweight aggregates for concrete, mortar and grout.

1.2 QUALIFICATION OF TESTING LABORATORY

The testing laboratory must be an established commercial laboratory which is equipped and manned for testing cement, concrete, and masonry materials. The laboratory must be able to prove that it has been engaged

Section 03300 3 in this type of testing during a period of not less than one year in order to be considered qualified and must be approved by the Contracting

Officer.

1.3 SUBMITTALS

1.3.1 Manufacturer's Catalog Data

Printed Installation Instructions of the following:

a. Chemical Floor Hardener

1.3.2 Shop Drawings

a. Reinforcing Steel

1.3.2.1 Submit shop drawings for reinforcing steel, prepared to indicate bending diagrams, assembly diagrams, splicing and laps of bars, shapes, dimensions and details of bar reinforcing and accessories and concrete cover. Do not use scaled dimensions from structural drawings to determine lengths of reinforcing rods. Shop drawings are defined as original drawings. Reproductions of contract drawings will not be accepted in lieu of shop drawings.

1.3.3 Design Data. Contractor Concrete Mix Design

Submit for approval a mix design for each type of concrete, including a complete list of materials and the applicable reference specifications, and copies of test reports showing that the mix has been successfully used to produce concrete with the properties specified. Submittal shall clearly indicate where each mix design will be used when more than one mix design is submitted.

1.3.4 Test Reports. Concrete mix design

Submit copies of test reports showing that the mix has been successfully tested to produce concrete with the properties specified and that mix will be suitable for the job conditions. Test reports shall be submitted along with the concrete mix design. Obtain approval before concrete placement.

1.3.5 Field Test Reports

Laboratory test reports as specified in the article entitled "Sampling and Testing."

1.3.6 Proofs of Compliance

The Contractor shall submit proofs of compliance as specified in the

“General Paragraph” and as follows:

a. Certificates of conformance for all materials, except materials requiring a laboratory test report.

b. Mill certificates of tests on bar steel.

1.4 DELIVERY AND STORAGE OF MATERIALS (EXCEPT READY-MIX CONCRETE)

4 Section 03300

Packaged materials shall be delivered to the project site in their original, unopened package or container bearing label clearly identifying manufacturer's name, brand name, material, weight or volume and other pertinent information. Packaged materials shall be stored in their original, unbroken package or container in a weathertight and dry place, until ready for use in the work. Unpackaged aggregates shall be stored in a manner to avoid excessive segregation or contamination with other materials or with other sizes of like aggregate, and to protect from freezing. Reinforcement shall be stored in a manner that will avoid excessive rusting or coating with grease, oil, dirt, and other objectionable materials. Storage shall be in separate piles or racks so as to avoid confusion or loss of identification after bundles are broken.

Concrete shall not be delivered until forms, reinforcement, and embedded items are in place and ready for concrete to be placed.

1.5 CONCRETE QUALITIES

1.5.1 General

Concrete will be in strict accordance with applicable portions of Law

1086 and Ministerial Decree 9 Jan. 1996. The concrete shall have a 28-day compressive strength (Rck, Resistenza Caratteristica) as follows:

Type of Construction Rck (kg/cm2)

Lean concrete 200

Rigid Pavements including 250 sidewalks, curbs and equipment pads

Drainage and Sanitary Sewer 250

Appurtenances

Thrust blocks, Pipeline 300

Encasements

Foundations, Grade Beams and 300

Grade Walls

Floor Slabs on Grade 250

Columns, Beams Above Grade Slabs 350 and Walls

All other concrete 300

Maximum aggregate size shall be 30 millimeters, except 25 millimeters for walls and slabs on grade. The maximum water cement ratio, by weight, for all concrete with Rck of 350 kg/cm2 shall not exceed 0.40.

1.5.2 Concrete Consistency

Concrete consistency shall be such that no air bubbles nor paste reflow will occur when the pouring and setting operations are finished regardless of placing method used.

1.5.3 Generally, the slump shall fall within the following limits, provided the required strength is obtained:

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Type of Structure Slump in cm for Vibrated Concrete

Minimum Maximum

General building construction and rigid pavements 5.0 7.5

Reinforced walls 5.0 10.0

Heavy-duty floor and slab construction 5.0 7.5

Shimmy tests shall be made in accordance with UNI EN 206-1.

1.5.4 Admixtures

Calcium chloride shall not be used as an admixture.

1.5.4.1 Air-Entrained Concrete

Provide for all concrete exposed to the weather. Air-entrainment shall be accomplished by using an air-entraining admixture, not air-entraining cement. If the entrained air content falls below the specified limit, an air-entraining admixture shall be added in sufficient quantity to bring the entrained air content within the specified limits. Air-entraining admixtures shall be added in solution in a portion of the mixing water by means of a mechanical batcher in a manner that will ensure uniform distribution of the agent throughout the batch. The air content of freshly mixed air-entrained concrete shall be as follows:

Amount of air (percent

Maximum aggregate size volume of concrete)

25 mm. 5 + 1

The percentage of air shall be determined by UNI EN 12350-7 on samples taken before placing of the concrete in the forms.

1.5.4.2 Accelerating, Retarding and Water Reducing Admixtures

Do not use unless prior approval is obtained from Contracting Officer’s

Technical Representative.

1.6 READY-MIXED CONCRETE (UNI EN 206-1)

For ready-mixed concrete works, the mixing and transporting equipment and the method of placement shall be subject to approval. Ready-mixed concrete shall have a mixing time for mixers having capacities of 0.76 cu.m or less, not less than one minute. For mixers over 0.76 cu.m capacity, mixing time shall be increased 15 seconds for each additional

0.38 cu.m or fraction thereof of material mixed.

1.7 READY MIXED MORTAR (SHOTCONCRETE)

The mortar shall be a cement mortar ready to be placed, single component, containing microsilica. Mortar shall be dry applied, by means of a compressed air spray machine.

Mortar shall be delivered to the site in factory sealed bags, bearing the manufacturer’s name, batch number and expiration date of the product.

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PART 2 – MATERIALS

Materials shall conform to the requirements and reference documents listed.

2.1 CONCRETE

2.1.1 Contractor Furnished Mix Design

Concrete mix shall satisfy the requirements specified herein and indicated on the drawings. Materials shall conform to the requirements and reference documents listed.

2.2 CEMENT

Portland Cement. Portland type R-325 shall be the minimum used.

2.2.1 Storage

Immediately upon receipt at site of work, the cement shall be stored in a dry, weathertight, properly ventilated structure, with adequate provisions for prevention of absorption of moisture from both walls and floor.

2.2.2 Testing

Cement will be accepted on the basis of mill or laboratory tests and the manufacturer's or laboratory certification of compliance with above.

When so directed by the Contracting Officer, the Contractor will furnish certificates of laboratory test reports of compliance to Contracting

Officer for each mill lot of cement supplied from different mills in mixed shipment and for each separate shipment from the same mill, prior to using the cement in the work. Testing of the cement shall be the responsibility of the Contractor. Testing agency will be subject to approval of the Contracting Officer.

2.3 WATER

Water for mixing and curing, including free moisture and water in the aggregate, shall be fresh, clean and potable. Turbidity of the water shall not exceed 2,000 parts per million.

2.4 AGGREGATES

Aggregate shall conform to UNI 8520.

2.4.1 Fine Aggregates

Shall be free from clay, organic materials, water soluble alkali and free from substances which might cause expansion in the concrete from reaction with alkali in the cement. Sand shall be sharp, fine granular, composed of hard, strong, durable, uncoated particles. Grading shall conform to the following:

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Total passing laboratory sleeves having sieve opening mm Percentage by weight

9.5 100

4.75 95-100

2.36 80-100

1.18 50-85

0.60 25-60

0.30 10-30

0.15 2-10

The fineness modulus of fine aggregate shall be not less than 2.40 or greater than 2.90. The fineness modulus shall be defined as the sum of the cumulative percentages retained on sieve sizes 4.75, 2.36, 1.18, 0.60, 0.30 and 0.15 divided by 100.

Aggregate which shows a variation in fineness greater than 0.20 more or less than that of the representative sample submitted, will be rejected, unless, at the option of the Contracting Officer’s Technical

Representative, it is accepted subject to such changes in the concrete proportions as may be directed, for which no change in the Contract price will be made.

2.4.2 Coarse Aggregate

It shall consist of crushed stone, or gravel, or subject to approval, other inert materials having similar characteristics. Grading of coarse aggregate shall be in accordance with UNI EN 206-1.

2.5 ADMIXTURES

Admixtures shall comply with UNI EN 934-2 and the following requirements.

2.5.1 Air-entraining admixture for concrete shall conform to UNI EN 934-2.

2.6 REINFORCEMENT

2.6.1 Reinforcing bars 26 millimeters in diameter and smaller shall be high strength helically deformed bars conforming to UNI ENV 10080 and

Ministerial Decree 9 Jan. 1996, designation FeB44K with a minimum yield strength of 430 N/mm2. Reinforcing bars 28 millimeters in diameter and larger shall be high strength factory designed helically deformed bars conforming to UNI 6407, designation FeB38 with a minimum yield strength of 3,800 kilograms per square centimeter.

2.6.2 Welded Wire Fabric

Welded wire fabric shall be electrowelded netting for concrete reinforcement, conforming to Ministerial Decree 9 Jan. 1996, and shall have the following minimum characteristics:

Yield Stress, fyk or 390 N/mm2 f (0.2)k

Breaking Stress, ftk 440 N/mm2

Ratio of Diameters of 0.60

Intersecting Wires

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Elongation, A10 8%

Minimum Ratio for ftk/fyk 1.10

2.6.3 Supports for Reinforcement

Supports for reinforcement shall include bolsters, chairs, spacers, and other devices suitable for proper spacing, supporting, and fastening reinforcing bars and welded wire fabric in place. The legs of supports in contact with formwork shall be hot-dip galvanized after fabrication, plastic coated, or corrosion-resisting chromium-nickel steel.

2.7 JOINT MATERIALS

2.7.1 Preformed Joint Filler Strips

Preformed joint filler strips shall be nonextruding and resilient bituminous type, approved by the Contracting Officer’s Technical

Representative.

2.7.2 Joint Sealing Compound

Joint sealing compound shall be cold-applied, mastic, single-or multiple component type sealing compound.

2.8 MATERIALS FOR CURING CONCRETE

2.8.1 Impervious Sheeting

Waterproof paper, polyethylene sheeting, or polyethylene coated burlap.

2.8.2 Liquid Membrane-Curing Compound

White-pigmented, free of paraffin or petroleum.

2.8.3 Liquid Chemical Compound

A suitable sealer-hardener designed for sealing and hardening in addition to curing of the concrete, applied by the method and at the rate recommended by the manufacturer. It shall not reduce the adhesion of tile, paint, roofing, waterproofing or other material to be applied to the concrete. The chemical compound shall be free of petroleum resins or waxes.

2.8.4 Waterproof Paper

It shall consist of two sheets of Kraft paper cemented together with bituminous material in which are embedded strands of fiber running in both directions.

2.8.5 Burlap

Commercial quality, two or more layers having a combined weight of 475 grams or more per square meter when clean and dry.

2.8.6 Polyethylene-Coated Burlap shall be a laminate of burlap weighing not less than 400 grams per square meter and a white opaque polyethylene film, not less than 0.1 millimeters thick. The polyethylene film shall be permanently bonded to the burlap.

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2.9 VAPOR BARRIER MATERIAL

Polyethylene sheeting of not less than nominal 0.20 millimeters thickness.

2.10 FLOOR FINISH MATERIALS

2.10.1 Liquid Chemical Floor Hardener

Liquid chemical floor hardener shall be a colorless aqueous solution containing a blend of magnesium fluorosilicate and zinc fluorosilicate combined with a wetting agent. The solution shall contain not less than

250 grams of fluorosilicates per liter. A proprietary chemical hardener of proven and satisfactory performance may be used provided the hardener is delivered to the project site ready for use in the manufacturer's original containers.

2.10.2 Epoxy Floor Coating

Epoxy floor coating shall be a two component epoxy resin for the hardening impregnation of concrete. Coating shall be an amber colored transparent liquid with good capillarity action, capable of being applied with a brush or a roller.

2.11 FORMS

2.11.1 General

Provide forms for all concrete not indicated or specified otherwise. Set forms true to line and grade and maintain so as to insure completed work within the allowable tolerances specified, and make mortar-tight. The

Contractor shall be responsible for the adequacy of forms and form supports. Construct forms so that they can be removed without damaging the concrete. All exposed joints, edges, and external corners of concrete shall be chamfered 15 millimeters unless otherwise shown. In excavations without forms, the dimensions of excavations in earth shall be not less than 6 centimeters outside of the concrete lines indicated.

2.11.2 Materials for Forms

Wood, plywood, steel, or other suitable material. Wood forms, for surfaces exposed to view in the finished structure, shall be boards or plywood. Boards shall be dressed to a uniform thickness, evenly matched, and free from loose knots, holes, and other defects. Plywood shall be concrete-form plywood with a minimum thickness of 15 millimeters.

Surfaces of steel forms shall be free from irregularities, dents, and sags.

2.11.3 Design of Forms

Form facing materials shall be supported by structural members spaced sufficiently close to prevent deflection of the form facing material.

Forms placed in successive units for continuous surfaces shall be fitted to accurate alignment to assure a smooth completed surface free from irregularities within the tolerances specified. Where necessary to maintain the tolerances specified, such as long spans where intermediate supports are not possible, the formwork shall be chamfered for anticipated deflections in the formwork due to the weight and pressure of

10 Section 03300 the fresh concrete and due to construction loads. Shores and struts shall be provided with a positive means of adjustment capable of taking up all formwork settlement during concrete placing operations.

Adjustment shall be obtained with wedges or jacks, or a combination thereof. When adequate foundations for shores and struts cannot be secured, trussed supports shall be provided. Temporary openings shall be provided in wall forms, column forms, and at other points where necessary to permit inspection and to facilitate cleaning. Forms shall be readily removable without impact, shock or damage to the concrete.

2.11.4 Forms for Standard Smooth Form Finish

Form facing material for formed surfaces to have standard smooth finish as specified, shall be the specified overlaid concrete form plywood or other approved form facing material that is nonreactive with concrete and that will produce concrete surfaces equivalent in smoothness and appearance to that produced by new overlaid concrete form plywood panels.

The maximum deflection of the form facing material between supports, and the maximum deflection of form supports, such as studs and wales, shall not exceed 0.005 times the span. The arrangement of form facing sheets shall be orderly and symmetrical, and the sheets shall be in as large sizes as are practicable. Panels shall be arranged to make a symmetrical pattern of joints. All horizontal and vertical joints shall be solidly backed and butted tight to prevent leakage and fins.

2.11.5 Form Ties

Form ties shall be factory-fabricated, adjustable in length, removable or snap-off metal type of design that will not allow form deflection or will not spall concrete upon removal. The portion of the form ties remaining within the concrete after removal of the exterior parts shall be at least

4 centimeters back from the concrete surface. Form ties shall be free of devices that will leave a hole larger than 25 millimeters or less than 10 millimeters in diameter in the concrete surface. Form ties fabricated at the project site or wire ties of any type are not acceptable.

2.11.6 Coating

Before placing the concrete, coat the contact surfaces of forms with a non-staining mineral oil, non-staining form coating compound or two coats of nitro-cellulose lacquer. Mineral oil shall not be used on forms for surfaces to be painted.

2.11.7 Tolerances and Variations

Set and maintain concrete forms to ensure that after removal of the forms no portion of the concrete work will exceed any of the tolerances.

2.11.7.1 Variations from the plumb.

a. In the lines and surfaces of piers, walls, and in arises

In any 3.0 m of length.......... 6 mm

Maximum for entire length....... 25 mm

b. For exposed control-joint grooves and other conspicuous lines

In any 6.0 m of length.......... 6 mm

Maximum for entire length....... 12 mm

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2.11.7.2 Variation from the level or from the grades indicated on the drawings.

a. In slab soffits, ceilings, beam soffits, and arises

In any 3.0 m of length......... 6 mm

In any bay or in any 6.0 m of length......................... 10 mm

Maximum for entire length...... 20 mm

b. In exposed lintels, sills, parapets, horizontal grooves, and other conspicuous lines

In any bay or in any 6.0 m of length......................... 6 mm

Maximum for entire length...... 16 mm

2.11.7.3 Variations of distance between walls, columns and beams.

6 mm per 3.0 m of distance, but not more than 12 mm in any one bay, and not more than 25 mm total variation.

2.11.7.4 Variation of linear building lines from established position in plan............................... 25 mm

2.11.7.5 Variation in the sizes and locations of sleeves, floor openings, and wall openings.

Minus.............................. 6 mm

Plus............................... 15 mm

2.11.7.6 Variation in cross-sectional dimensions of piers, columns and beams and in the thickness of slabs, pavements, and walls.

Minus.............................. 6 mm