Attach-2-Specifications.pdf

Specifications/Statement of Work 2021 – Office/Visitor Center Rehab Las Vegas NWR San Miguel County, New Mexico Asset # 10010217 Date: April 5, 2021

United States Fish and Wildlife Service Division of Engineering 500 Gold Ave. S.W.

Albuquerque, New Mexico 87103

Approvals

Refuge Manager/Project Leader

Refuge Program Supervisor

Chief, Division of Infrastructure Mgmt.

Project Manager

NA

Environmental Compliance

NA

Cultural Resources

Energy Compliance

PATRICK

TYBOR

Digitally signed by

PATRICK TYBOR

Date: 2021.04.21 06:32:34 -06'00'

ROBERT

RAYNER

Digitally signed by

ROBERT RAYNER

Date: 2021.04.19 08:50:54 -06'00'

CHRISTOPHER

LOHRENGEL

Digitally signed by

CHRISTOPHER LOHRENGEL

Date: 2021.04.19 09:31:53 -06'00'

MARK ORTON Digitally signed by MARK ORTON Date: 2021.04.19 09:42:33 -06'00'

ALICE

GARRETT

Digitally signed by ALICE

GARRETT

Date: 2021.04.20 16:12:01 -06'00'

LAS VEGAS, NWR VISITOR CENTER REHABILITATION

SAN MIGUEL COUNTY, NM 2021

SPECIFICATIONS

TABLE OF CONTENTS

SECTION

01009 GENERAL INFORMATION & REQUIREMENTS

01410 TESTING LABORATORY SERVICES

02070 SELECTIVE DEMOLITION

03300 CONCRETE

04200 MASONRY

05120 STEEL

06100 ROUGH CARPENTRY

08110 STEEL DOORS & FRAMES

08211 FLUSH WOOD DOORS

08410 ALUMINUM STOREFRONT SYSTEMS

08520 ALUMINUM WINDOWS

08710 DOOR HARDWARE

08716 AUTOMATIC DOOR OPERATORS

09260 GYPSUM BOARD ASSEMBLIES

09310 CERAMIC TILE

09900 PAINTING

12491 HORIZONTAL LOUVER BLINDS

230593 TESTING, ADJUSTING, & BALANCING FOR HVAC

230713 DUCT INSULATION

231126 LIQUEFIED-PETROLEUM (LP) GAS PIPING

232300 REFRIGERANT PIPING

233113 METAL DUCTS

233300 AIR DUCT ACCESSORIES

233416 CENTRIFUGAL HVAC FANS

233713 AIR DIFFUSERS, REGISTERS & GRILLES

235416 GAS-FIRED FURNACES

236200 PACKAGED COMPRESSOR & AIR COOLED CONDENSER UNITS

260100 BASIC ELECTRICAL MATERIALS AND METHODS

260519 CONDUCTORS & CABLES

260533 RACEWAYS & BOXES

262726 WIRING DEVICES

262816 ENCLOSED SWITCHES

SAN MIGUEL COUNTY, NEW MEXICO 2021

GENERAL INFORMATION AND REQUIREMENTS 010090-1

SECTION 010090 –GENERAL INFORMATION AND REQUIREMENTS

PART 1 - GENERAL

1.1 SUMMARY

A. GENERAL DESCRIPTION OF WORK REQUIRED IN THIS CONTRACT: The work shall consists of providing all labor, equipment, supplies and materials to perform the following in accordance with the attached plans (drawings) and specifications:

1. To replace the building’s 20 year old HVAC system with a new system

2. Enclose the existing patio area by constructing a new wall and modify existing building structures,

3. Modify two offices in the southwest corner of the office area as shown on the drawings,

4. Modify existing exterior wall and install new windows at locations shown on drawings,

5. Remove and replace existing window at locations shown on the drawings,

6. Replace existing entry doors with new ADA, automated doors,

7. Install new security door between the Visitor Center and Office area,

8. Replace existing carpeting with new tile flooring, B. WORK LOCATION: The address of the work is at the Las Vegas NWR, (35.551 N, 105.167W), located 5.5 miles southeast of the city of Las Vegas, NM on State Highway 104, and 5 miles south on State Highway 281, of Las Vegas, San Miguel county, New Mexico at

Route 1, Box 399, Las Vegas, NM 87701.

C. SITE VISIT: Contractors shall visit project site and inspect existing conditions prior to submitting quotes. One site visit will be schedule thru the Contracting Officer before bidding-

See Federal Acquisition Regulation (FAR) clause 52.236-27 “Site Visit”. Contact Christian

Eggleston - Refuge Manager, 505-425-3581 x 201, to be placed on the list for the scheduled site visit.

1.2 PERFORMANCE TIME: Performance time begins the day after the receipt of the Notice of

Award. The performance time will be negotiable. The government would like to have the project completed within 180 calendar days. The performance time shall include submitting the detailed technical performance work statement proposal for approval, material and equipment acquisition, installation, testing, adjusting, reporting, clean-up, final inspection and project closeout.

1.3 REFERENCES

A. Referenced Specifications/Standards with Abbreviations and/or Acronyms: Wherever the following acronyms are used in these specifications or on the drawings, they are to be construed the same as the respective expressions represented. Copies of the referenced specifications/standards referred to herein may be procured by the Contractor, from the following:

1. ACI - American Concrete Institute, P.O. Box 19150, Detroit, MI 48219.

GENERAL INFORMATION AND REQUIREMENTS 010090-2

2. ASHRAE – American Society of Heating, Refrigeration and Air-Conditioning Engineers, INC. 1791 Tullie Circle, NE., Atlanta, GA 30329. 404-636-8400 www.ashrae.org

3. ASTM - American Society for Testing and Materials, 100 Barr Harbor Dr., West

Conshohocken PA 19428-2959.

4. AASHTO - American Association of State Highway and Transportation Officials, 444

North Capitol Street, N.W., Suite 249, Washington, DC 20001

5. EPA - Environmental Protection Agency, 401 M St., SW., Washington, DC 20460.

6. IECC – International Energy Conservation Code, 4051 West Flossmoor Rd, Country

Club Hills, IL 60478. 1-888-422-7233. www.iccsafe.org

7. IFGC – International Fuel Gas Code, 4051 West Flossmoor Rd, Country Club Hills, IL

60478. 1-888-422-7233. www.iccsafe.org

8. IMC - International Mechanical Code, 4051 West Flossmoor Rd, Country Club Hills, IL

60478. 1-888-422-7233. www.iccsafe.org

9. IPC - International Plumbing Code, 4051 West Flossmoor Rd, Country Club Hills, IL

60478. 1-888-422-7233. www.iccsafe.org

10. NFPA - National Fire Protection Association, One Batterymarch Park, Quincy, Masssachusetts 02169-7471. www.nfpa.org

11. OSHA - Occupational Safety and Health Administration, US Department of Labor, 200

Constitution Ave., NW, Washington DC 20210.

12. SMACNA – Sheet Metal and Air Conditioning Contractor’s National Association, Inc.

8224 Old Courthouse Rd, Vienna, Virginia. 22180.

1.4 CODE COMPLIANCE: Project shall comply with the following:

A. Appropriate articles of the National Electric Code (NEC) version 2017, also known as NFPA

70.

B. Appropriate chapters of the International Fuel Gas Code (IFGC) version 2015.

C. Appropriate chapters of the International Mechanical Code (IMC) version 2015.

D. Appropriate chapters of the National Fire Protection Association 58 (NFPA58) – Liquefied

Petroleum Gas Code, version 2017.

E. Appropriate parts of the current version of Occupational Health and Safety Act (OSHA)

1.5 INSTALLER QUALIFICATIONS

A. Must have successfully completed at least three similar generator installation projects in the past five years.

B. All work shall be conducted by a New Mexico state authorized HVAC/Plumbing service technician.

C. All on-site work shall be performed under the direct supervision of a Master Electrician and shall be authorized to perform electrical work in the State New Mexico.

http://www.ashrae.org/ http://www.iccsafe.org/ http://www.iccsafe.org/ http://www.iccsafe.org/ http://www.iccsafe.org/ http://www.nfpa.org/

GENERAL INFORMATION AND REQUIREMENTS 010090-3

1.6 SITE CONDITIONS

A. Limited amounts of potable water is available for construction purposes. Contractor shall provide drinking water for all construction crews. All water expenses incurred during contract shall be incurred by the contractor.

B. Provide and maintain appropriate “Porta-Potties” for all construction crew use. Contractor shall pay for all expenses for the temporary services.

C. The contractor shall provide and maintain all temporary storage facilities for the security of all the contractor’s equipment, tools and materials during the entire construction performance. The government/refuge will not provide any security and is not responsible for any damage, theft, loss of any contractor’s materials, equipment or tools. The contractor shall coordinate with the refuge manager for proposed sites for temporary storage areas. Refer to Paragraph 3.4 below for additional operational requirements.

D. Contractor shall provide appropriate dumpster for trash removal off government property and properly dispose of trash in accordance with New Mexico state statutes. Contractor shall also provide adequate trash/dumpster maintenance to ensure trash is not blow around the refuge.

Contractor shall be responsible for all costs for trash removal. Refer to Paragraph 3.3 D below for additional operational requirements.

E. Burning is not allowed on government refuge property.

F. Electrical power for construction purposes:

1. 240/120Vac, 20Amp and 30amp, 1 phase, electrical circuits are available for construction. Contractor shall make arrangements as necessary for its use.

2. Contractor shall make arrangements with the local utility company to provide all additional temporary electrical power needed for construction.

3. Contractor shall pay for all new temporary electrical power fees including monthly electrical charges.

4. Electric power is available adjacent to the construction site. Contractor shall arrange with the local utility if additional power is needed on site for construction.

G. Provide notice to Refuge Manager for his/her approval at least 72 hours in advance of any requested power outage

H. UNDERGROUND SURVEYS- Contractor shall conduct the following underground surveys to locate and mark any exiting underground utilities or water lines before performing any earth excavations or earth moving operations around the work site associated with the contract’s work execution:

1. Utility Locator Service: Notify local utility locator serving the Project area to locate and mark known utilities around the work site.

2. Contractor shall perform an underground survey for existing underground metallic pipe-lines, warning tapes, and electrical circuits before beginning any earth excavations or moving operations around the work site.

3. Contractor shall inquire and consult with refuge personnel to identify any known underground utility, service, electrical, phone, and etc. before beginning any earth excavations or moving operations around the work site.

SAN MIGUEL COUNTY, NEW MEXICO 2021

GENERAL INFORMATION AND REQUIREMENTS 010090-4

I. Existing property not indicated for demolition, shall be protected. All damage by Contractor’s activities shall be repaired by the Contractor at no additional cost to the Government.

J. BEFORE PERFORMING ANY ON-SITE MODIFICATION to the existing electrical, control, mechanical, plumbing systems, the contractor shall witness the current operational condition of the existing equipment or systems and note any malfunctioning equipment in the building. The government’s designated construction inspector (CI) shall demonstrate the operations of the various existing systems. This demonstration shall be documented in the CI’s daily log along with documenting any specific operational problems or existing condition issues. Both, the contractor’s designated on-site representative and the government CI shall sign the daily log agreeing to the current operation conditions. The government inspector shall provide copies of the signed daily log to the contractor, the Contracting Officer (CO), the refuge manager, and the

Contracting Officer’s Representative (COR) before disturbing the existing system.

K. PROTECTION OF EXISTING LANDSCAPE: Protect all vegetation inside and outside work limits. All rutting caused by Contractor activities shall be filled and contoured to match adjacent areas. Areas damaged by Contractor activities shall be repaired at no addition cost to the government.

L. This is a NON SMOKING facility. Contractor personnel are not allowed to smoke on FWS property. Smoking is only allowed in contractor’s personal vehicles and all trash generated from such activities must be removed from FWS grounds.

1.7 SUBMITTALS

A. PROPOSAL SUBMITTAL REQUIREMENTS: “Request for Proposals” shall include the following which will be evaluated for contract award:

1. Qualifications

2. Past Similar Experience

3. Price for the stated work objectives.

4. Refer to Contract FAR Clauses for Proposal Evaluation procedures.

B. TECHNICAL SUBMITTAL PROCEDURES AND REQUIRMENTS AFTER AWARD:

1. All Submittals, technical data for materials and supplies to be provided under the contract, Request for Information (RFI), and Request for Contract Changes, shall be delivered to the governments designated Contracting Officer (CO) and/or Contracting

Officer’s Representative (COR) at U.S. Fish and Wildlife Service, Region 2, Division of

Engineering, P.O. Box 1306, Albuquerque, NM 87103-1306. The designated COR will be assigned by the CO as part of the Contract Award Package along with their contact information.

2. Contractor shall email electronic (PDF) submittal drawings, specification, shop drawings and etc, to the designated government COR for review, comment, and approval. After reviewing the submittals, the CO/COR will return the appropriate electronic (PDF) comments and approvals by email to the contractor’s designated project manager.

Contractor shall be responsible for distributing the government’s review, comments and approvals to his suppliers and sub-contractors.

3. There will be no approval of technical data submittals prior to contract award.

4. All Technical Product Data, Description and Shop Drawings shall be submitted to the designated Contracting Officer’s Representative (COR) for review and approval before

SAN MIGUEL COUNTY, NEW MEXICO 2021

GENERAL INFORMATION AND REQUIREMENTS 010090-5

ordering or installing equipment. Submittals will be evaluated based on the contract requirements stated in the specifications and on the drawings. Refer to specification sections for submittals required. Unapproved equipment may not be accepted. Do not commence with work which requires review of any submittals until receipt of returned submittals with an acceptable action. Do not allow submittals without an acceptable action marking to be used for the project.

5. Each Technical Submittal shall have an appropriately filled out USFWS Submittal

Transmittal Form (#REN-021) which will serve as a submittal summary and tracking device. The form will be provided as part of the Contract Award Package.

6. Each Technical Submittal shall be highlighted to clearly show contract compliance requirements and what options or features will be provided.

7. APPROVALS: Approval of the technical submittals is an indication that the Contractor's submittals have been reviewed and that there are no exceptions taken, except as noted.

Approval of deviations shall apply only to those deviations or omissions from the requirements of the drawings and specifications brought to the Contracting Officer's attention in writing. After an item has received an approval and a substitution is necessary, resubmit the new substitute item for a new approval. Approval of submittals does not relieve the Contractor of errors, omissions, or from complying with the

Contract’s requirements.

8. REVIEW TIME: Allow at least 10 WORKING DAYS for review, plus transmittal time back and forth.

9. The Technical Submittal process SHALL NOT BE USED for Requesting Information

(RFI) or clarification. Contractor shall submit separate written RFI’s to both the CO and the COR in a form which will allow for a formal written response from the CO and/or

COR. Each RFI shall have a separate identifying number and date.

10. The Technical Submittal process SHALL NOT BE USED for requesting changes or price changes to the contract. Refer to FAR Clauses for Contract Change procedures.

C. PROJECT CLOSEOUT SUBMITALS

1. Test and Inspection Reports: Submit to the designated COR all contract specified inspections/witnessing reports, tests results documentation and/or commissioning test results before requesting final inspection. Refer to individual specification sections for required inspection, test, and reports.

2. Operation and Maintenance Manual: Submit two copies of Operation and Maintenance

Manuals to the COR which shall include product approved technical cut sheets and sequence of operations for the new equipment’s maintenance and operating instructions.

3. Warranties: In addition to one year construction warranty, provide standard manufacturer's written warranty, signed by manufacturer agreeing to promptly repair or replace products that fail in materials or workmanship for the period of 10 years on new furnaces and air conditioning condenser compressor.

1.8 QUALITY ASSURANCE:

A. Codes and Standards: The work shall comply with codes and standards applicable to each type of work and as listed in the individual specification sections. This contract incorporates materials, applications, and tests by reference, with the same force and effect as if they were given in full text.

SAN MIGUEL COUNTY, NEW MEXICO 2021

GENERAL INFORMATION AND REQUIREMENTS 010090-6

B. Conflict: Where a conflict occurs between reference documents, drawings, and project specifications, refer to the FAR’s and the Contracting office for resolution.

C. Product basis: Where specifications or drawings call out a specific product or manufacturer, it is understood that an equal or better product is acceptable, as approved in the submittal process.

PART 2 - PRODUCTS – NOT USED- REFER TO SPECIFIC TECHNICAL SPECIFICATIONS FOR

ALL NEW EQUIPMENT AND MATERIALS

PART 3 - EXECUTION

3.1 PROJECT MEETINGS:

A. Preconstruction Conference: Telephone conference call is anticipated.

B. Progress Meetings: To be held at the project site as required.

C. Inspections:

1. Contractor shall perform and maintain records of their construction inspection to ensure their own construction quality assurance and contract compliance. Refer to FAR 52.246

2. The government’s on-site construction inspector (CI) and/or COR will conduct routine inspections to monitor the contracts progress. Inspection of items of work by the CI will not relieve the Contractor of the requirement to meet project specifications. The CI shall be informed 24 hours in advance of work requiring his observation. After being informed in advance the CI’s non-attendance shall not prohibit the Contractor from proceeding with work in the CI’s absence.

3. For final inspection, notify the COR in writing at least 14 working days before the completion date so the Government can schedule final inspection. The superintendent shall be present during the final inspection.

4. Notify COR and CI ten working days in advance of anticipated date for equipment start-up and operational tests.

5. Notify COR and CI ten working days in advance of anticipated date for final inspections.

3.2 SEQUENCING AND SCHEDULING WORK

A. Work Schedule: Contractor shall submit project schedule at the pre-work conference. When requested, submit an updated schedule within 3 calendar days. As a minimum, the estimated start and completion dates shall be shown on the schedule.

B. The contractor shall perform construction work during the refuge’s normal work schedule which is from 7:00 a.m. to 4:00 p.m., Monday through Friday. No work shall be performed on

Saturdays, Sundays, or federal holidays, unless authorized in writing by the Contracting Officer.

C. At all times when any performance of the work at the site is being conducted by any employee of the contractor or his subcontractor, the contractor shall have his designated superintendent present on-site who has the capability of receiving instructions in the English language, fluently

SAN MIGUEL COUNTY, NEW MEXICO 2021

GENERAL INFORMATION AND REQUIREMENTS 010090-7

speaks the English language, and who can explain the work operations to his workers in a language that they are capable of understanding.

D. For Security purposes, all contractor personnel must carry photo identification (i.e. driver’s license) at all the times. On a daily basis and before performing work, the contractor and subcontractors must check- in at the refuge main officer to notify they will be on-site performing.

3.3 SAFETY:

A. SAFETY PLAN: Contractor shall submit, for approval before any work is conducted on site, a safety and a quality assurance plan for the project. Plans shall be site specific for this project.

The safety plan shall address all OSHA personnel safety equipment and clothing to be worn on the construction site.

B. SUPERINTENDENT RESPONSIBILITY: Contractor’s on-site superintendent shall ensure all personnel (including all sub contactors) comply with the approved safety plan/manual. In addition, the Superintendent shall ensure compliance with all applicable state and local safety codes and regulations including but not limited to Occupational Safety and Health

Administration regulations, 29 CFR, Part 1926.

C. MSDS’s : Contractor shall maintain copies of all the Material Safety Data Sheets for all materials on the construction site for the duration of the contract.

D. DISPOSAL OF DEBRIS: Demolition debris shall be removed from the project site and disposed of in a legal disposal site by the Contractor. Contractor shall pay all fees required for disposal.

E. Work areas shall be roped off to alert unauthorized personnel to work in progress.

3.4 DELIVERY, STORAGE, AND HANDLING:

A. Delivery: Protect products incorporated into the work from damage while in transit to the site.

Products must be delivered in original unopened containers with manufacturer’s name, brand designation, and contents legibly indicated. The packaging containers shall bear the referenced specification number, type, and class as applicable.

B. Contractor shall be responsible for providing all equipment and labor required for offloading/unloading all equipment and supplies to be provided under the contact. Contractor shall also inspect and accept all equipment and supplies delivered to the site. The government will not perform any offloading, inspection and accepting for the contractor.

C. Storage: Provide temporary storage facilities for products. Storage shall comply with the manufacturer’s instructions. The storage area shall permit access for inspection and handling.

D. Handling: Loading and unloading of products shall be protected from damage. Damaged products shall be replaced with new products; repairs shall not be acceptable.

SAN MIGUEL COUNTY, NEW MEXICO 2021

GENERAL INFORMATION AND REQUIREMENTS 010090-8

3.5 PROGRESS PAYMENTS:

A. Payments shall be made in accordance with procedures outline in FAR 52.232-27.

B. Construction progress payments will be made on a monthly basis based on the work completed per the approved Schedule of Values, as agreed to by the Construction Inspector and the

Superintendent or Project Manager.

C. Retainage will not be implemented unless the Contracting Officer determines that construction progress and/or quality are not satisfactory.

3.6 PROJECT ACCEPTANCE:

A. COMMISIONING TEST:

1. Submit final test and commission reports (which shall include completed equipment

Start-up check-list) to the COR for review and acceptance before requesting final payment. The submitted documents shall demonstrate the new equipment is operating in accordance with the contract requirements, manufacturer’s performance ratings and the approved equipment submittal.

2. See specific specification for requirements.

B. PROJECT OPERATION AND MAINTENCANCE MANUALS.

1. Submit two copies of the required Operation and Maintenance Manuals for all new equipment provide in the contract in a three ring binder for review and acceptance.

Submit one copy to the contract’s designated on-site CI and the other to the designated

COR.

C. FACILITY OPERATORS TRAINING: The contractor shall provide on-site training to the facility operations personnel on the operation, monitoring and required maintenance of all new equipment provided and installed under this contract. The training shall include review of the approved Operations and Maintenance Manual and answer questions any questions. The training session, length of training and the trainers name and contract information shall be documented on the contract’s daily report.

D. PROJECT WARRANTEES:

1. All project work/construction shall be provided with a one-year warranty in accordance with FAR 52.246-21.

2. With respect to warranties, expressed or implied, from manufacturers or suppliers of materials or equipment furnished under the contract, the Contractor shall:

a. Obtain the most favorable warranties that would be given by the Contractor in normal commercial practices, but in no case less than called for by the specifications.

b. Require warranties to be executed, in writing, for the benefit of the Government.

c. Submit warranties to the COR prior to the final inspection.

E. PROJECT AS-BUILT RECORD DRAWINGS: A complete set of full-sized prints, furnished by the Contracting Officer for this purpose only, shall be kept by the Contractor. As the job progresses, continuously maintain as-built drawings of the work. The changes shall be noted legibly in red pencil or red ink. These drawings shall be submitted to the COR prior to final

SAN MIGUEL COUNTY, NEW MEXICO 2021

GENERAL INFORMATION AND REQUIREMENTS 010090-9

inspection. Should final inspection reveal changes in the Project not so noted on the As-Built

Drawings, the Contractor shall record these changes on the As-Built Drawings within 3 working days. Deliver completed As-Built Drawings to the COR at final inspection and before requesting final payment

F. FINAL PAY REQUEST: Submit the following for final Payment request to the contract’s designated COR

1. Release of Claims

2. Final Pay request approved by the contract’s designated on-site construction inspector

(CI).

END OF STATEMENT OF WORK

TESTING LABORATORY SERVICES 01410 - 1

SECTION 01410 - TESTING LABORATORY SERVICES

PART 1: GENERAL

1.1 SUMMARY - Section includes requirements for the Contractor to engage and pay for a certified, independent testing laboratory to conduct specific tests on concrete, grout, mortar, and other items as called for by individual sections of the specifications.

1.2 SUBMITTALS

A. The Testing Laboratory shall provide 3 copies of test reports to the COR within

24 hours of performing the test. Reports shall include testing facility name, address, telephone number, and names of full-time responsible officers.

B. Submit qualifications of the Testing Laboratory to demonstrate that they meet the standards in this specifications.

1.3 QUALITY ASSURANCE - The Testing Laboratory must have authority or be licensed to operate in the State of New Mexico as a materials testing laboratory.

PART 2: PRODUCTS

2.1 REPORTS

A. Reports shall include:

1. Date issued.

2. Project title and number.

3. Name of inspector.

4. Date and time of sampling or inspection.

5. Identification of product and specification sections.

6. Location in the project.

7. Type of inspection or test.

8. Date of test.

9. Results of tests.

10. Conformance with contract documents.

2.2 INTERPRETATION - When requested by the COR, provide interpretation of test results.

END OF SECTION

SELECTIVE DEMOLITION 02070 - 1

SECTION 02070 - SELECTIVE DEMOLITION

1.1 SUMMARY

A. This Section includes the following:

1. Demolition and removal of masonry walls, carpeting, vinyl flooring, stucco, windows, doors, door frames, electrical and mechanical components, and other items as indicated in the drawings and specifications.

1.2 MATERIALS OWNERSHIP

A. Demolished materials shall become the property of the Contractor, and shall be removed from the project site and legally disposed of.

1.3 PROJECT/SITE CONDITIONS

A. A staging area for contractor activities will be available in the immediate vicinity of the project. The exact area will be established by the Contractor and CI.

B. Unforseen Conditions: Should unforseen conditions be encountered that affect design or function of the project, investigate fully and submit an accurate, detailed, written report to the COR. While awaiting the Contracting Officer’s response, reschedule operations if necessary to avoid delay of overall project.

PART 2: PRODUCTS (NOT USED)

PART 3: EXECUTION

3.1 EXAMINATION

A. The Contractor shall visit the site and verify the extent and location of the demolition work required. Correlate with drawings and specifications.

3.2 PREPARATION

A. Protection:

1. Provide for the protection of persons passing around or through the area of

SELECTIVE DEMOLITION 02070 - 2

demolition.

2. Perform demolition so as to prevent damage to adjacent improvements and facilities to remain.

3. Examine structural supporting conditions and report to the COR any conditions which vary from the drawings or for which unstable conditions may be created by

Contractor’s activities. Temporary structural support is the responsibility of the

Contractor. Permanent structural support plans are based on “as-built” drawings which are sometimes not accurate; Contractor shall verify accuracy before proceeding, and shall halt activities and report any variance to the COR before proceeding.

3.3 DEMOLITION - GENERAL

A. Remove debris daily.

B. Perform selective demolition using methods which are least likely to damage work to remain and which will provide adequate structural support and proper surfaces for patching.

C Any areas not called out for demolition but damaged by Contractor activities shall be repaired by the Contractor to pre-existing conditions at no additional cost to the government.

3.4 CLEANING

A. Clean areas affected by demolition to conditions existing prior to the demolition.

CAST-IN-PLACE CONCRETE 03300 - 1

SECTION 03300 - CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.1 SUMMARY - This section includes cast-in-place concrete for sidewalks and miscellaneous work.

A. Concrete Mix Design in accordance with ACI 301, for approval.

B. Laboratory Test Report for Compressive strength.

C. Field Test Reports for Air Entrainment and Slump.

D. Test Reports for Admixtures and Membrane forming compounds, for approval.

E. Shop drawings of placement and mill reports of reinforcing steel, for approval.

1.3 QUALITY ASSURANCE

A. Testing laboratory shall conduct tests on concrete for air entrainment, slump and compressive strength.

B. Standards:

1. International Building Code, Concrete, except as modified herein.

2. American Concrete Institute, Building Code Requirements for Reinforced

Concrete.

3. ACI Standards 318 and 315 for reinforcement detailing and placement, including concrete protection for steel reinforcement, unless otherwise indicated or modified herein.

1.4 DEFINITION:

A. All concrete on this project is considered to be “exterior.”

CAST-IN-PLACE CONCRETE 03300 - 2

PART 2 - PRODUCTS

2.1 FORMWORK:

A. Forms for Exposed Finish Concrete: Plywood, metal, metal-framed plywood faced, or other acceptable panel-type materials to provide continuous, straight, smooth, exposed surfaces. Furnish in largest practicable sizes to minimize number of joints and to conform to joint system shown on drawings. Use plywood complying with U.S. Product

Standard PS-1 “B-B (Concrete Form) Plywood,” Class I, Exterior Grade or better, mill-oiled and edge-sealed, with each piece bearing legible inspection trademark.

B. Forms for Unexposed Finish Concrete: Plywood, lumber, metal, or neatly excavated trench.

2.2 REINFORCING

A. Reinforcing Bars: ASTM A615, Grade 60, deformed.

B. Supports for Reinforcement: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire fabric in place. Use wire bar-type supports complying with CRSI specifications. For slabs-on-grade, use supports with sand plates or horizontal runners where base material will not support chair legs.

2.3 MATERIALS

A. Aggregate: Except as otherwise specified, aggregate, both fine and coarse, shall conform to ASTM C-33.

1. Maximum size aggregate is 1/5 of narrowest dimension between forms of the concrete member or 3/4 of minimum clear spacing between reinforcing bars.

2. Gradation:

Sieve % Passing (By Weight)

1 100

3/4 35-70

3/8 10-30

#4 0-5

3. Anchorage Items: Slots and inserts for anchoring masonry and mechanical items to concrete, shall be of standard manufacture and of types required to engage with the anchors to be provided and installed therein under other sections of these specifications, CAST-IN-PLACE CONCRETE 03300 - 3 and shall be subject to approval.

B. Cement shall be Type II Portland Cement and conform to ASTM specification C150.

C. Expansion Joint Filler Strips and Sealant: Expansion joint material shall be premolded, ½" thick, meeting ASTM D-1751.

D. Air Entraining Admixture:

1. Air-entraining Agents, ASTM C260, and shall be certified by manufacturer shall be compatible with other required admixtures.

2. Air content by volume shall be 4 to 7 percent, as determined in conformance with

ASTM Test Method 231. No compound containing calcium chloride shall be used.

E. Water Reducing and Retarding Admixtures:

1. The admixtures shall produce concrete with the following specific qualities as required in this division- workability, controlled rate of hardening, and compressive and/or flexural strength

2. Minimum of five years actual experience and field service using the exact formulation and dosage for which approval is requested. Only products with an established field record will be approved.

3. The admixture manufacturer shall provide a certified test result showing that admixture exceeds the minimum requirement of ASTM C494, type A or D.

F. Fly Ash: ASTM C618, Type F.

G. Concrete Patch: Sonocrete per Sonneborn-Contech, or approved equal.

H. Grout (if required): Embeco 636 by Master Builders (Flowable non-shrink grout), or approved equal. 28 Day compressive strength shall be 5000 psi minimum.

I. Epoxy Adhesive (if required): ASTM C881, two component material.

PART 3 - EXECUTION

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3.1 SAMPLES AND TESTING

A. Testing shall be the responsibility of the Contractor. Certified copies of test reports shall be furnished for admixture and membrane-forming curing compounds and shall be furnished before the materials are used in the work. Test specimens of concrete for strength tests shall be made at the job site by the testing laboratory, shall be stored at the job site as directed by the testing laboratory and shall be transported from the job site to the laboratory by the testing laboratory.

B. Cement will be accepted on the basis of mill test reports and the manufacturer’s certification of compliance with the specification, provided the cement is the product of a mill with a record for production of high-quality cement for the past 3 years. Cement delivered to the site of the work and later found under test to be unsuitable shall be removed from the vicinity.

C. Aggregates shall be tested as prescribed in ASTM Specification C33.

D. Concrete:

1. All compression and air content tests shall be done by an approved testing laboratory and all costs for such tests will be paid for by the Contractor. Test reports shall show accurately the locations at which tests were made and the extent of the pour affected by that test. Copies of all test reports shall be transmitted to the COR. Slump tests shall be made by the testing laboratory and paid for by the Contractor.

2. Compression Tests: One set of test specimens shall be made for each type of concrete supplied and placed each day. Each set shall consist of not less than four specimens and shall be made, cured and three specimens shall be tested in accordance with ASTM C31

“Standard Method of Making and Curing Concrete Compression and Flexure Test

Specimens in the Field,” and ASTM C39 “Method of Test for Compressive Strength of

Molded Concrete cylinder.” The fourth specimen shall be held for a period of sixty days and shall be tested in the event any of the three other specimens from the pour show strength below the specified requirement. When, in the opinion of the COR, there is a possibility of the surrounding air temperature falling below 40 degrees F, the COR may require additional test specimens to be cured under job conditions. All test cylinders shall be made at the job site by a qualified representative of the testing laboratory and shall be transported to the laboratory from the job site by the laboratory representative. If the average strength of the laboratory control cylinders falls below the required specified strength at 28 days, the fourth specimen shall be tested. When deemed necessary by the

COR, the additional cold weather job cured test specimens shall be tested to check the

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quality of the field concrete against the results obtained from the laboratory cured test specimens.

3. Test of hardened concrete in, or removed from, the structure: When the results of the strength test of the control specimens indicate the concrete as placed does not meet specification requirements or where there is other evidence that the quality of the concrete is below specification requirements, core-boring tests shall be made in conformance with ASTM C42. Core specimens shall be tested by the Contractor. If the results of core boring tests indicate that the concrete as placed conforms or does not conform to the drawings and specifications, the cost of such tests shall be borne by the

Contractor. If any concrete shows evidence of failure during the load test or fails the load test or core tests as evaluated, the deficiency shall be corrected. Any deficiency shall be corrected in a manner approved by the COR and at no additional cost to the Government.

4. Slump Tests: One test is required at point of discharge for each day’s pour of each type of concrete. Additional tests shall be required when consistency seems to have changed. Tests shall be made in accordance with ASTM C143 “Standard Test Method for Slump of Hydraulic Cement Concrete.”

5. Air Content Tests: For each set of compression test cylinders, one test shall be made for air content in accordance with ASTM C173, “Method of Test for Air Content of

Freshly Mixed Concrete by Volumetric Method.”

3.2 CONCRETE QUALITY AND STRENGTH

A. Use 3500 psi concrete for all cast in place concrete.

3.3 PROPORTIONING OF CONCRETE MIXES: Trial design batches and testing to meet requirements of the concrete as specified shall be the responsibility of the Contractor.

The design mix shall contain aggregates representative of those proposed for use in the work and shall be of consistencies specified in Paragraph 3.3C, Slump.

A. Determination of Water Content: Specimens shall be made and cured in conformance with ASTM C192 and tested in conformance with ASTM C39 or C78 as applicable.

Curves representing the relationship between the water-cement ration and the average 28 day compressive strength, shall be established for a range of values including the compressive and flexural strengths indicated. The maximum allowable water-cement ratio shall be that shown by these curves to produce an average compressive strength 15 percent greater than that specified.

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B. Established Design-Mix Proportions: Prior to commencing operations, the Contractor shall furnish a statement giving the mix proportions of all ingredients that will be used in the manufacture of concrete proposed for use. The statement shall be accompanied by test reports and all test results from an independent commercial testing laboratory, attesting that the proportions stated will produce concrete of the qualities indicated. No substitutions shall be made in the materials used in the work without additional tests to show that the quality of the concrete is satisfactory.

C. Slump: In the field, slump shall be determined in conformance with ASTM C143, and shall be within the following limits: 1 inch to 4 inches. If mix design calls for less than

4" maximum slump, then slump shall be held to that limit.

3.4 BATCHING AND MIXING: Concrete of the ingredients and design mixes herein specified shall be measured, batched and mixed in conformance with ASTM C94. Semi-automatic plant, is a plant in which batching weights are set manually, mixes are changed manually and materials are batched automatically.

3.5 PLACING CONCRETE: Concrete shall be handled from mixer to place of final deposit in a continuous manner, as rapidly as practicable and without segregation or loss of ingredient until the approved unit of operation is completed. Concrete shall be placed in the forms, as nearly as practicable in final position in uniform, approximately horizontal layers not over 12 inches deep. Forms or reinforcement splashed with concrete shall be cleaned in advance of placing subsequent lifts. Concrete shall not be allowed to drop freely more than 5 feet in unexposed work nor more than 3 feet in exposed work. Where greater drops are required, a tremie or other approved means shall be employed. Building floor slab and foundation shall be placed in one day in a continuous pour.

A. Cold Weather Placement: All cold weather concreting shall conform to ACI 306

“Recommended Practice for Cold Weather Concreting.” Concrete shall be mixed and placed only when the temperature is at least 40 degrees F, and rising, unless permission to pour is obtained from the COR, in which event all material shall be heated and otherwise properly prepared so that batching and mixing can proceed in full accord with this specification. Suitable means shall be provided for maintaining the concrete at a temperature of at least 50 degrees F, for a period of 72 hours after placing, except that where high-early-strength cement is used, this period may be reduced to 24 hours. The methods proposed for heating the materials and protecting the concrete shall be approved by the COR. Salt, chemicals, or other materials shall not be mixed with the concrete for the purpose of preventing freezing. Accelerating agents shall not be used except when approved in writing by the COR.

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B. Hot Weather Placement: All hot weather concrete shall conform to ACI 305. Concrete shall not be placed if its temperature is above 90 degrees F. The concrete mix shall include ice in order to maintain its temperature below 90 degrees F.

3.6 COMPACTION: Immediately after placing, each layer of concrete shall be compacted by internal concrete vibrators supplemented by hand spading, rodding, and tramping.

Mechanical vibration by internal concrete vibrators is not required for slabs. Tapping or other external vibration of forms will not be permitted. Vibrators shall not be used to transport concrete inside forms. Internal vibrators submerged in concrete shall maintain a speed of not less than 7,000 impulses per minute. The vibrating equipment shall at all times be adequate in number of units and power to properly consolidate all concrete.

Spare units shall be on hand as necessary to produce satisfactory consolidation without causing objectionable segregation. The vibrators shall be applied at uniformly spaced points not farther apart than the visible effectiveness of the machine.

3.7 BONDING AND GROUTING: Before depositing new concrete on concrete that has set, the surfaces of the set concrete shall be thoroughly cleaned of laitance, coatings, foreign matter, and loose particles. Forms shall be re-tightened. The cleaned surfaces shall be moist but shall be without free water when grout is applied. Apply an even coat of neat cement grout to old concrete surfaces before placing new concrete.

3.8 SLABS-ON-GRADE:

A. Concrete shall be compacted, screeded to grade, and prepared for the specific finish.

Concrete shall be placed continuously so that each unit of operation will be monolithic in construction. Panels within control joint boundaries shall be as shown on the drawings.

Forms shall remain in place for at least 12 hours

3.9 JOINTS

A. Perimeter Joints - Joints between slabs on grade and vertical surfaces shall be of ½" premolded expansion joint material extending full slab depth. The perimeters of slabs at the joints shall be free of fins, rough edges, spalling, or other unsightly appearance.

B. Control Joints:

1. Construct control joints in slabs-on-grade to form panels of no greater than 10 feet in a direction parallel or perpendicular to slab edges.

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2. Use saw cuts 1/8-inch wide by 1/4 of slab depth, or inserts 1/4-inch wide by 1/4 of slab depth.

3. Form control joints by saw cuts or by inserting premolded plastic, hardboard, or fiberboard strip into fresh concrete until top surface of strip is flush with slab surface.

Tool slab edges round on each side of insert. After concrete has cured, remove inserts and clean groove of loose debris.

4. Control joints may also be formed by saw cuts as soon as possible after slab finishing as may be safely done without dislodging aggregate and disturbing finished appearance of slab, but not longer than 18 hours after placement.

3.10 FINISHES OF CONCRETE OTHER THAN SLABS-ON-GRADE:

A. Within 12 hours after forms are removed, remedy surface defects as specified herein.

1. Remove fins and loose material.

2. Honeycomb, aggregate pockets, and voids over ½-inch in diameter, shall be cut out to solid concrete, thoroughly wetted, brush-coated with neat cement grout and filled with mortar.

3. Use mortar made of 1 part blended portland and white cements to two parts fine aggregate passing the No. 15 mesh sieve, and water as little as necessary for handling and placing.

4. Patchwork shall finish flush and in the same plane as adjacent surface.

3.11 CONCRETE SLAB-ON-GRADE FINISHES:

A. INTERIOR SLABS - MONOLITHIC FINISH - The concrete for slabs shall be screeded and floated with straightedges to bring the surface to the required finish level with no coarse aggregate visible.

1. The concrete, while still green, shall be wood floated to a true, even plane with no coarse aggregate visible.

2. Sufficient pressure shall be used on the wood floats to bring moisture to the surface.

3. After the surface moisture has disappeared, surfaces shall be steel troweled to a smooth even dense finish, free of blemishes including trowel marks.

4. Install dry shake Concrete floor hardener at the time and by the method in the manufacturer’s instructions.

CAST-IN-PLACE CONCRETE 03300 - 9

B. EXTERIOR SIDEWALKS - COARSE BROOMED FINISH - Shall be screeded and floated to bring the surface to the required finish level with no coarse aggregate visible, shall be broomed with stiff, coarse, fiber brooms in a direction transverse to that of the slope. Jitterbugging of exterior sidewalks will not be permitted.

3.14 CURING

A. Concrete shall be protected against moisture loss, rapid temperature change, mechanical injury from rain or flowing water, for the following period: Concrete shall be maintained in a moist condition at temperatures above 50 degrees F for the first 7 days or not less than 70 degrees F for the first 3 days. Concrete shall be protected from local application of heat. Curing activities shall be started as soon as free water has disappeared from the surface of the concrete after placing and finishing.

B. Moist Curing: Unformed surfaces shall be covered with burlap or mats, wetted before placing, and overlapped at least 6-inches. Burlap or mats shall be kept continually wet and in intimate contact with the surface. Where formed surfaces are cured in the forms, the forms shall be continually wet. Burlap shall be used only on surfaces that will be unexposed in the finished work and shall be in 2 layers.

C. Impervious-Sheet Curing: All surfaces shall be thoroughly wetted with fine spray of water and be completely covered with waterproof paper. Covering shall be lapped not less than 12-inches and securely weighted down.

D. Membrane-forming Compound Curing: The compound shall be applied on damp surfaces as soon as the moisture film has disappeared. The compound shall be applied in a two coat, continuous operation at a coverage of not more than 175 square feet per gallon for each coat. The compound shall form a uniform, continuous, adherent film that shall not check, crack or peel, and shall be free from pinholes or other imperfections. Membrane curing compound shall not be used on surfaces that are to receive any subsequent treatments that depend on adhesion or bonding to the concrete, or that are to receive floor hardener. Compound shall not be applied when the wind velocity exceeds 5 miles per hour.

3.16 CONCRETE PATCH: Apply to all concrete surfaces, which have been exposed by removal or damage to old or new concrete. Form to smooth, true planes, square corners and edges to conform to shape of members where applied. Apply in accordance with manufacturer’s recommendations.

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3.17 CONCRETE BONDING: Apply to old concrete surfaces to be patched and to holes and any concrete repair work prior to placing new concrete, grout, or mortar. Apply in accordance with manufacturer’s recommendations.

UNIT MASONRY 04200-1

SECTION 04200 - UNIT MASONRY

A. This section includes concrete unit masonry.

1.2 SYSTEM PERFORMANCE REQUIREMENTS - Provide concrete unit masonry that develops1500 psi minimum installed compressive strengths (f'm).

A, Unit Masonry Standard: Comply with UBC or IBC Chapter 21, Masonry.

B. Testing Laboratory shall conduct field and laboratory tests on grout according to UBC

Standard 21-18. One test for each day grout is placed.

C. Testing Laboratory shall conduct field and laboratory tests on mortar according to UBC

Standard 21-16. One test for each day mortar is placed, unless mortar mix remains the same, in which case only one test is required.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver masonry materials to project in undamaged condition.

B. Store and handle masonry units off the ground, under cover, and in a dry location to prevent their deterioration or damage due to moisture, temperature changes, contaminants, corrosion, and other causes. If units become wet, do not place until units are in an air-dried condition.

C. Store cementitious materials off the ground, under cover, and in dry location.

D. Store aggregates where grading and other required characteristics can be maintained and contamination avoided.

E. Store masonry accessories including metal items to prevent corrosion and accumulation of dirt and oil.

UNIT MASONRY 04200-2

1.5 PROJECT CONDITIONS

A. Protection of Masonry: During erection, cover tops of walls, projections, and sills with waterproof sheeting at end of each day's work. Cover partially completed masonry when construction is not in progress. Extend cover a minimum of 24 inches down both sides and hold cover securely in place.

B.…