FP1024596 SoW - Repair Installation Boundary Fence F7211-100.pdf

PDF 5 MB Posted

Attached to
Repair of the Installation Boundary Fence at F7211, Vance AFB, Enid, Oklahoma
Solicitation number
FP1024596A
Issued by

About this file

This is a Statement of Work (SOW) for repair and restoration of the installation boundary fence at Vance Air Force Base in Oklahoma, with a design completion level of 100% as of May 22, 2026.

The project requires repair of approximately 4,000 linear feet of chain-link fence and installation of two double swing chain-link gates. Work includes site preparation with vegetation and debris clearing; demolition of damaged fence sections, posts, and concrete mow strips; installation of new Portland cement concrete (minimum 4,500 PSI compressive strength) for post footings and mow strips; installation of a continuous electrical grounding system with copper-clad steel ground rods spaced at intervals not exceeding 150 feet; and installation of 9-gauge chain-link fabric at 6-foot height with tension wire, 3-strand barbed wire, top rail, braces, and galvanized metal posts. The contractor must provide site cleanup, erosion control with 3-foot rolled filter fabric, temporary construction fencing, and Foreign Object Debris (FOD) management compliant with FAA Advisory Circular 150/5210-24. Work must comply with Unified Facilities Criteria (UFC) 4-022-03 standards for high security fences. The total performance period is 135 calendar days, comprising 45 days non-performance for mobilization and material lead time, followed by 90 calendar days for work completion. All materials must meet the Buy American Act, and the contractor must provide a standard 1-year warranty on all labor and materials. Project coordination is required with ASRC Federal Construction Management, and all contractor employees must obtain required security passes and comply with installation security requirements. The work is located on the south end of Vance AFB near Enid, Oklahoma.

View the file

Other files

On GovTribe

Work with this file

  • Download the original file
  • Contacts named in this file
  • Similar government files
  • Ask GovTribe AI about this file

Text version

Design Percent Completion: 100%

May 22, 2026

Statement of Work

REPAIR INSTALLATION BOUNDARY FENCE, 7211

VANCE AIR FORCE BASE, OKLAHOMA

FACILITY PROJECT ID 1024596, WORK TASK #: 18429975

PREPARED BY CHELSI MOOTZ & JOMARA ORTIZ

400 Young Road Vance AFB, OK 73705 580.213.7174

FP1024596, WT#18429975 Page 1 of 14 Repair Installation SoW Version 4.0 Boundary Fence, F7211

INDEX

PART 1 GENERAL

1.01. PROJECT DESCRIPTION

1.02. INSTRUCTIONS TO BIDDERS

1.03. LOCATION OF WORK

1.04. SCOPE OF WORK

1.05. CHANGES

1.06. WARRANTY

1.07. SCHEDULE OF WORK

1.08. WORK RESTRICTIONS

1.09. CONTRACTOR’S REPRESENTATIVE

1.10. PROVIDED SERVICES AND UTILITIES

1.11. INSPECTION

1.12. EXCESS MATERIALS (EXCLUDING HAZARDOUS MATERIALS OR WASTE)

1.13. SPECIAL MATERIALS

1.14. MATERIALS

PART 2 EXECUTION

2.01. SITE SAFETY REQUIREMENTS

2.02. INSTALLATION

PART 3 SITE INFORMATION

PART 4 APPENDICES

4.01. APPENDIX A – SITE PHOTOS

4.02. APPENDIX B – BID FORM

4.03. APPENDIX C – SPECIFICATIONS

4.04. APPENDIX D – RECORD DRAWINGS

4.05. APPENDIX E – SCHEDULE E

FP1024596, WT#18429975 Page 2 of 14 Repair Installation

PART 1 GENERAL

1.01. PROJECT DESCRIPTION

A. The work covered under this Statement of Work shall consist of repairing a section of the Installation’s boundary fence and any incidental work necessary to provide a complete and usable finished product.

1.02. INSTRUCTIONS TO BIDDERS

A. As part of the bid package the Contractor shall submit a completed copy of APPENDIX B – BID FORM, along with all required documentation as stated in Sam.gov.

B. Owner reserves the right to reject any bid which does not completely satisfy the Statement of Work.

1.03. LOCATION OF WORK

A. Location of work to be accomplished under this statement of work is at Vance Air Force Base (AFB). Vance AFB is located three miles south of the City of Enid, Oklahoma. The portion of Facility 7211, the Perimeter Fence, to be replaced, is located on the south end of the Installation.

1.04. SCOPE OF WORK

A. The Contractor shall furnish all supervision, labor, equipment, consumable materials, supplies, tools, and other items to complete the construction as listed in the Scope of Work. All quotes shall include all shipping charges for completion of the project. The contractor will coordinate all work with ASRC Federal Construction Management prior to execution. The list of items below are to be considered the general Scope of Work for the project.

B. The Contractor shall field verify location of work, dimensions, and existing site conditions prior to commencing work. The Contractor shall contact ASRC Construction Management for any discrepancies with the Scope of Work.

C. This project requires repair and restoration of the installation boundary fence to establish a continuous security barrier. All work shall match the existing configuration and comply with Unified Facilities Criteria (UFC) 4-022-03 standards, with the exception of the fabric height, which must match the existing 6-foot height to maintain visual and structural uniformity. Additional details are described below:

FP1024596, WT#18429975 Page 3 of 14 Repair Installation

1. SITE PREPARATION:

a. Clear vegetation, debris, and obstructions along the designated fence line to allow for repair operations.

b. Maintain a clear zone of at least 20 feet on either side of the fence line per UFC standards.

2. DEMOLITION:

a. Remove damaged chain-link fence and gates, to include bent posts, post-footings, broken barbed wire/outriggers, tension wire, top rails, braces and any other appurtenance needed to clear the area.

b. Carefully remove and dispose of existing fence grounding systems in accordance with safety protocols.

c. Remove damaged concrete mow strip.

d. Dispose of all unserviceable materials outside of the installation in accordance with local, state, and federal environmental regulations.

3. PORTLAND CEMENT CONCRETE:

a. Mow Strip:

1. Refer to APPENDIX C – SPECIFICATIONS, DIVISION 03 30 00 CAST-IN-PLACE

CONCRETE.

a. Strength: Concrete must meet a minimum 28-day compressive strength of 4500 PSI.

b. Post Footing:

1. Refer to APPENDIX C – SPECIFICATIONS, DIVISION 32 31 13.53 HIGH

SECURITY FENCES (CHAIN LINK AND ORNAMENTAL) AND GATES.

2. Curing: A minimum of 7 day curing period is required before applying tension to cables and fabric.

FP1024596, WT#18429975 Page 4 of 14 Repair Installation

4. ELECTRICAL GROUNDING:

1. Refer to APPENDIX C – SPECIFICATIONS, DIVISION 32 31 13.53 HIGH

SECURITY FENCES (CHAIN LINK AND ORNAMENTAL) AND GATES.

2. Installation: Install a new, continuous grounding system along the entire 4,000 LF fence line.

3. Ground Rods: Drive copper-clad steel ground rods (minimum 5/8-inch diameter, 8-foot length) into the earth at intervals not to exceed 150 feet, and at all corners, gate posts, and gate openings.

4. Connections: Bond the fence fabric, tension wires, and gate posts to the ground rods using exothermic welds or heavy-duty mechanical connectors.

5. Testing: The contractor must test the ground resistance to ensure it does not exceed 25 Ohms (or installation-specific standard) and submit testing logs to the COR.

5. FENCES & GATES:

a. Refer to APPENDIX C – SPECIFICATIONS, DIVISION 32 31 13.53 HIGH SECURITY FENCES (CHAIN LINK AND ORNAMENTAL) AND GATES and APPENDIX D – RECORD

DRAWINGS.

b. Furnish and chain-link fence, and two (2) double swing chain-link gates:

1. Fence length: 4,000 feet

2. Gate dimensions: 6-foot-wide x 20-feet long

c. Includes 9-gauge chain link fabric, tension wire, 3-strand barbed wire, tension wire, galvanized metal posts, top rail, braces, and any other necessary appurtenances to provide a complete and usable fence system.

1. Fabric must be stretched with a minimum height of 6 feet.

2. Tension wire: Install on top and bottom of the chain link fabric.

3. Corrosion Protection: Apply a zinc-rich compound to all field welds or areas where galvanized coating was damaged during installation.

FP1024596, WT#18429975 Page 5 of 14 Repair Installation

4. Ground Clearance: The bottom of the fence fabric must remain within 2 inches of firm ground or a concrete curb to prevent unauthorized tunneling or passage.

6. SITE CLEANUP:

a. Grade the disturbed earth, re-seed if necessary, and remove all construction equipment and temporary fencing.

D. The Contractor shall always maintain clean areas free of clutter and debris during construction. After the work is completed, clean site to preconstruction conditions, or better.

E. Protection of Government Property

Take special care to protect Government property. Return areas damaged as a result of construction under this contract to their original condition. In addition to FAR 52.236-9, Protection of existing vegetation, structures, equipment, utilities, and improvements, perform the following:

1. Remove or alter existing work or facilities in such a manner as to prevent injury or damage to any portion of the existing work or facilities to remain.

2. Repair or replace portions of existing work altered during construction operations to match existing or adjoining work, as approved by ASRC Construction Management. At the completion of operations, existing work must be in a condition equal or better than that which existed before any new work started.

F. Construction Fence (Temporary Fence)

The Contractor shall provide construction fencing around the job site.

1. Provide 4-foot-high heavy duty plastic safety fence (orange fence).

G. Foreign Object Debris (FOD) Control on the Airfield

FOD Management shall be compliant with FAA Advisory Circular No. 150/5210-24, or latest applicable version.

1. Contractor shall maintain an inventory of tools, equipment, and other items on Contractor’s vehicles to comply with the flight and safety ground procedures.

Contractor shall check inventory daily, before and after work, to ensure that no tools, equipment, or any other items remain on the area at the end of the workday.

FP1024596, WT#18429975 Page 6 of 14 Repair Installation

2. Contractor shall monitor, clean, and prevent FOD from propagating on the work area every day. The Contractor shall use a sweeper truck and/or any other means necessary to control and prevent FOD.

H. Erosion Control

1. The Contractor shall provide 3-foot high rolled erosion control filter fabric (snow fence) on steel posts.

1.05. CHANGES

A. No oral statement by any person other than the Contracting Officer as provided in the Federal Acquisition Regulation (FAR) will in any manner or degree modify or otherwise affect the terms of this contract.

1.06. WARRANTY

A. The Contractor shall provide a standard 1-year Warranty for all labor and material from date of the base’s acceptance of completion in accordance with Federal Acquisition Regulation (FAR) clause 52.246-21. For warranted items furnish the Manufacturer’s original warranty accompanied by a copy of the supplier’s receipt showing place of purchase, telephone number of supplier, address, delivery order if applicable and ticket number.

1.07. SCHEDULE OF WORK

A. The Contractor shall be responsible for establishing a schedule to meet construction time.

B. The Contractor shall submit a schedule of all project work in advance to ASRC Construction Management indicating all work activities including required interruptions of utilities, facilities activities, or traffic flow.

C. The Contractor shall complete work on this contract such that interferences to necessary activities within and adjacent to the construction site are minimized and all Government property and personnel are always protected from incidental damage.

D. The Contractor shall coordinate work of all trades to prevent any conflicts. The Contractor shall resolve any conflicts of components before proceeding with construction.

E. The Contractor shall submit a Schedule of Values to ASRC Construction Management for approval. Schedule of Values to be provided on AIA G702 or similar.

FP1024596, WT#18429975 Page 7 of 14 Repair Installation

1.08. WORK RESTRICTIONS

A. EXISTING UNDERGROUND UTILITIES

Any underground utilities within the work areas will initially be located and identified with paint markings on the surface by Vance AFB personnel. The Contractor shall maintain all utility markings, after base personnel have located them, for the duration of the contract. The Contractor shall obtain an approved Air Force Form 103, BASE CIVIL ENGINEERING WORK CLEARANCE REQUEST before beginning any underground work. The Contractor shall notify ASRC Construction Management at least two weeks in advance of desired commencement of work. The Contractor is responsible for repairing any utilities damaged during construction.

B. WORK HOURS, ACCESS, AND PASSES

All Contractor employees, including subcontractors, subcontractors' employees, suppliers, and suppliers' employees are required to comply with the Installation Security Requirements regarding personnel, vehicle, and equipment security passes and access to the jobsite. Nothing in the contract is to be construed in any way to limit the authority of the Commanding Officer to prescribe new, or to enforce existing security regulations governing the admission or exclusion of persons and the conduct of persons while on VAFB, including but not limited to, the rights of search of all persons or vehicles on the Installation.

1. Access to Buildings / Occupied Buildings: The Contractor may work in or around existing occupied buildings. The Contractor is responsible, via the ASRC Construction Management, to obtain access to building and facilities and arrange for them to be opened and closed. Do not enter the building(s) without prior approval of the ASRC Construction Management. Keep the existing buildings and their contents secure at all times. Provide temporary closures as required to maintain security.

2. Passes: Contractor employees and representatives performing work under this contract are required to be either United States citizens or documented legal residents (status verified by prime contractor) and have a Real ID driver’s license. All Contractor employees must obtain the required passes. Failure to obtain security and base access passes must not be a cause for contract performance time extension.

The Contractor is required to immediately turn in all terminated employee's passes to the issuing office.

FP1024596, WT#18429975 Page 8 of 14 Repair Installation

3. Contractor Vehicles: All vehicles must display a valid state license plate and safety inspection sticker, if applicable, and must be maintained in good condition. The company name must be displayed in a clearly visible manner and size on each Contractor vehicle used in the course of work. Registration, proof of insurance and driver’s licenses are required to obtain a station vehicle pass.

4. Work Hours: Normal working hours are from 7:30 a.m. to 4:30 p.m., Monday through Friday. Night, Weekend (Saturday and Sunday) and Federal Holiday work will be subject to approval by the ASRC Construction Management. The Contractor must provide a written request of their intention to work outside of normal working hours to ASRC Construction Management at least 48 hours in advance of the specified time.

a. The Contractor shall perform all work during normal working hours except as otherwise approved to accommodate agreed upon "shutdowns" and other required "after hours" work. At no time will any facility have their services or utilities disrupted during normal working hours without prior approval from the ASRC Construction Management.

5. Contractor employees must conduct themselves in a proper, efficient, courteous, and businesslike manner. Remove from the site any individual whose continued employment is deemed by the ASRC Construction Management to be contrary to the public interest or inconsistent with the best interests of National Security.

1.09. CONTRACTOR’S REPRESENTATIVE

A. Superintendent: A representative of the Contractor shall directly supervise accomplishment of this work. The representative will be responsible for coordinating all phases of work with the ASRC Construction Management. The representative shall always be on the job site when work is being performed and shall have authority to execute no cost field changes on behalf of the Contractor if agreed to by all parties involved.

1. Qualifications: Must have a minimum of 5 years of experience as a Superintendent on previous projects of similar size and complexity. Provide a Superintendent Resume for the proposed on-site Project Superintendent describing experience with references and qualifications to ASRC Construction Management for approval. ASRC Construction Management reserves the right to interview the proposed on-site Project Superintendent at any time in order to verify the submitted qualifications.

FP1024596, WT#18429975 Page 9 of 14 Repair Installation

B. Quality Control (QC): A representative of the Contractor responsible for all quality control of the job site and will be held responsible by the ASRC Construction Management for the removal and installation of all products in accordance with the statement of work. The representative shall be competent and familiar with all phases of work under their authority.

1. Qualifications: Must have a minimum of 5 years combined experience as a Superintendent, Inspector, QC manager, Project manager, or Construction Manager on similar size and type construction contracts which included major trades included in this statement of work. The individual must be familiar with the requirements of EM 385-1-1 and have experience in the areas of hazard identification and safety compliance.

C. A single representative of the Contractor for supervising the project, ensuring quality control (QC) and site safety is permitted provided that the representative is competent and familiar with all phases of work under their authority, and it is qualified to perform these duties.

D. Contractor Personnel: Provide ASRC Construction Management the name(s) of the supervisory person(s) authorized to act for the Contractor. Provide, and update as required, a list of the key personnel for the Contractor and Subcontractors including addresses and telephone numbers (main and cell) for use in the event of an emergency.

1.10. PROVIDED SERVICES AND UTILITIES

A. All reasonable required amounts of electric power will be made available to the Contractor at the discretion of ASRC Construction Management from the nearest suitable and available connection.

B. All reasonable required amounts of water will be made available to the Contractor at the discretion of ASRC Construction Management.

C. The Contractor shall be required to provide their own latrines that are staked down to prevent being turned over.

FP1024596, WT#18429975 Page 10 of 14 Repair Installation

1.11. INSPECTION

A. The work shall be conducted in accordance with the Statement of Work and is subject to the inspection of the ASRC Construction Management and Government Representative to ensure strict compliance with the terms of the statement of work.

1.12. EXCESS MATERIALS (EXCLUDING HAZARDOUS MATERIALS OR WASTE)

A. All waste materials resulting from execution of work shall become the property of the Contractor. The Contractor shall haul all non-hazardous waste off Vance AFB and dispose of it in a legal manner.

B. The Contractor shall be required to control all foreign objects debris (FOD) from exiting the job site at all times.

C. At no time shall the Contractor dispose of any recyclable materials in the landfill. All recyclable material shall be taken to an approved recycling center at no cost to the government.

D. The Contractor shall submit tonnage of waste and recycled material to ASRC Construction Management at project completion.

1.13. SPECIAL MATERIALS

A. Prohibited Material: The manufacturer of materials to be used shall certify the products do not contain mercury, toluene, chlorinated solvents, hydrolysable chlorine derivatives, ethylene base glycol ethers and their acetates, nor any carcinogen, as defined in 29 CFR

1910.1200. Materials used shall not contain lead and hexavalent chromium compounds.

B. At no time shall class 1 Ozone Depleting Chemical (ODC’s) be specified and shall not be used unless otherwise allowed by ASRC Construction Management.

1.14. MATERIALS

A. All materials must meet the Buy American Act.

B. Material Submittals:

1. Copies of all materials and shop drawings are to be submitted to ASRC Construction Management and must be approved prior to purchasing any items.

FP1024596, WT#18429975 Page 11 of 14 Repair Installation

2. All hazardous chemicals used on the project are required to have Safety Data Sheets (SDS) approved by the Vance Environmental Office prior to transport to the installation.

3. All hazardous waste generated by the project shall become the property of Vance AFB for legal disposal.

4. The Contractor shall use the Short-Term Hazardous Material Inventory and Usage Report Form to get Hazardous Materials authorized for use inside the fence.

C. List of Materials

1. Refer to Section 1.04 Scope of Work, within this Statement of Work.

2. Refer to APPENDIX C – RECORD DRAWINGS.

D. Material Delivery: The Contractor shall have all materials delivered during normal working hours and will have a representative present to receive shipments. The Contractor shall ensure all delivery vehicles have sufficient project information and are prepared to undergo inspection upon entering the Installation. This includes name and address of the project site, name of prime contractor and a point of contact for delivery.

Material will be delivered to a location for staging as approved by ASRC Construction Management.

FP1024596, WT#18429975 Page 12 of 14 Repair Installation

PART 2 EXECUTION

2.01. SITE SAFETY REQUIREMENTS

A. All work shall be done in compliance with the safety standards as defined in DAFMAN 91- 203, Air Force Occupational Safety, Fire, and Health Standards.

B. The Contractor shall comply with all applicable standards and provisions of the Occupational Safety and Health Act (OSHA) (29 CFR OSHA 1926).

C. The Contractor shall take all necessary and prudent safety precautions to ensure safety of the workforce and other exposed personnel.

D. The Contractor shall coordinate all requests for entry to the airfield or Air Force control/restricted areas through ASRC Construction Management.

2.02. INSTALLATION

A. Project Duration:

1. The total period of performance is 135 calendar days as described below.

a. Non-Performance Period: The Contractor shall have up to 45 calendar days of nonperformance for mobilization and material lead time. If material lead time exceeds this number of days, the nonperformance period may be extended with coordination of the ASRC Construction Management and approval by Contracting Officer.

b. Performance Period: All work shall be completed within 90 calendar days after obtaining a Notice to Proceed from the Contracting Officer.

B. Installation shall include all items listed in this statement of work, and any incidental work necessary to provide a complete and usable finished product.

C. Contractor shall remove equipment and material from the site upon completion of work as directed by ASRC Construction Management.

580.213.7174

FP1024596, WT#18429975 Page 13 of 14 Repair Installation SoW Version 4.0 Boundary Fence, F7211

PART 3 SITE INFORMATION

Figure 1: Project Location

580.213.7174

Page 14 of 14 Repair Installation FP1024596, WT#18429975 SoW Version 4.0 Boundary Fence, F7211

PART 4 APPENDICES

4.01. APPENDIX A – SITE PHOTOS

4.02. APPENDIX B – BID FORM

4.03. APPENDIX C – SPECIFICATIONS

A. DIVISION 03 30 00 CAST-IN-PLACE CONCRETE

B. DIVISION 32 31 13.53 HIGH SECURITY FENCES (CHAIN LINK AND ORNAMENTAL)

AND GATES

4.04. APPENDIX D – RECORD DRAWINGS

A. C-503 FENCE DETAILS

B. PD-1522 FENCE DETAILS & NOTES

C. PD-1522 FENCE DETAILS

4.05. APPENDIX E – SCHEDULE E

END OF STATEMENT OF WORK

580.213.7174

FP1024596, WT#18429975 Repair Installation Boundary Fence, F7211

APPENDIX A – SITE PHOTOS

580.213.7174

FP1024596, WT#18429975 APPENDIX A – SITE PHOTOS Repair Installation Boundary Fence, F7211

APPENDIX A – SITE PHOTOS

Figure 2: South East Fence Figure 3: South East Fence

Figure 4: South East Fence Figure 5: South East Fence

Figure 6: South East Fence Figure 7: South East Fence

580.213.7174

FP1024596, WT#18429975 APPENDIX A – SITE PHOTOS Repair Installation Boundary Fence, F7211

Figure 8: South East Fence Figure 9: South East Fence

Figure 10: South East Fence

Figure 11: South East Fence

580.213.7174

FP1024596, WT#18429975 Repair Installation

APPENDIX B - BID FORM

580.213.7174

APPENDIX B - BID FORM

Fac. Proj. ID: 1024596, WT#18429975

Proj. Name: Repair Installation Boundary Fence, 7211

UNIT

ITEM DESCRIPTION UNIT QTY PRICE TOTAL

Base Bid

1 Demolition LS 1 -$

2 P.C.C. Mowstrip - Complete-In-Place CY 133 -$

Chain Link Fence - Includes Tension Wire, 3-Strand

Barbed Wire, Top Rail, Bracing, Posts, Grounding and

Other Necessary Appurtenances for a Complete-In-Place

Fence. LF 4,000 -$

Chain Link Double Swing Gates - Includes Bracing, Tension Wire, 3-Strand Barbed Wire, Posts, Grounding, Padlocks and Other Necessary Appurtenances for a

Complete-In-Place Gate System. EA 2 -$

5 Erosion Control - Silt Fence LS 1 -$

6 Construction Fence (Orange Fence) LS 1 -$

7 Final Clean-Up LS 1 -$

8 Total Cost Base Bid (Sum of lines 1 through 7) -$

Address:

Phone Number: _______________________________________

E-mail address: _______________________________________

Contractor's Name Date

Contractor's Signature

FP1024596, WT#18429975 Repair Installation

APPENDIX C – SPECIFICATIONS

SECTION 03 30 00

CAST-IN-PLACE CONCRETE

02/19, CHG 1: 02/21

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 within the text by the basic designation only.

AMERICAN CONCRETE INSTITUTE (ACI)

ACI 117 (2010; Errata 2011) Specifications for Tolerances for Concrete Construction and Materials and Commentary

ACI 121R (2008) Guide for Concrete Construction Quality Systems in Conformance with ISO

ACI 213R (2014; E2017) Guide for Structural Lightweight-Aggregate Concrete

ACI 301 (2016) Specifications for Structural Concrete

ACI 302.1R (2015) Guide for Concrete Floor and Slab Construction

ACI 304.2R (2017) Guide to Placing Concrete by Pumping Methods

ACI 304R (2000; R 2009) Guide for Measuring, Mixing, Transporting, and Placing Concrete

ACI 305.1 (2014) Specification for Hot Weather Concreting

ACI 305R (2010) Guide to Hot Weather Concreting

ACI 306.1 (1990; R 2002) Standard Specification for Cold Weather Concreting

ACI 306R (2016) Guide to Cold Weather Concreting

ACI 308.1 (2011) Specification for Curing Concrete

ACI 347R (2014; Errata 1 2017) Guide to Formwork for Concrete

ACI SP-2 (2007; Abstract: 10th Edition) ACI Manual of Concrete Inspection

ACI SP-15 (2011) Field Reference Manual: Standard Specifications for Structural Concrete ACI 301-05 with Selected ACI References

AMERICAN HARDBOARD ASSOCIATION (AHA)

AHA A135.4 (1995; R 2004) Basic Hardboard

AMERICAN WELDING SOCIETY (AWS)

AWS D1.4/D1.4M (2011) Structural Welding Code - Reinforcing Steel

ASTM INTERNATIONAL (ASTM)

ASTM A36/A36M (2019) Standard Specification for Carbon Structural Steel

ASTM A53/A53M (2020) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A184/A184M (2019) Standard Specification for Welded Deformed Steel Bar Mats for Concrete Reinforcement

ASTM A615/A615M (2020) Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

ASTM A706/A706M (2016) Standard Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement

ASTM A767/A767M (2016) Standard Specification for Zinc-Coated (Galvanized) Steel Bars for Concrete Reinforcement

ASTM A775/A775M (2017) Standard Specification for Epoxy-Coated Steel Reinforcing Bars

ASTM A780/A780M (2020) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM A820/A820M (2016) Standard Specification for Steel Fibers for Fiber-Reinforced Concrete

ASTM A884/A884M (2019) Standard Specification for Epoxy-Coated Steel Wire and Welded Wire Reinforcement

ASTM A934/A934M (2016) Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars

ASTM A955/A955M (2020c) Standard Specification for

Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement

ASTM A970/A970M (2018) Standard Specification for Headed Steel Bars for Concrete Reinforcement

ASTM A996/A996M (2016) Standard Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement

ASTM A1022/A1022M (2016b) Standard Specification for Deformed and Plain Stainless Steel Wire and Welded Wire for Concrete Reinforcement

ASTM A1044/A1044M (2016a) Standard Specification for Steel Stud Assemblies for Shear Reinforcement of Concrete

ASTM A1055/A1055M (2016) Standard Specification for Zinc and Epoxy Dual Coated Steel Reinforcing Bars

ASTM A1060/A1060M (2016b) Standard Specification for Zinc-Coated (Galvanized) Steel Welded Wire Reinforcement, Plain and Deformed, for Concrete

ASTM A1064/A1064M (2017) Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete

ASTM C31/C31M (2019a) Standard Practice for Making and Curing Concrete Test Specimens in the Field

ASTM C33/C33M (2018) Standard Specification for Concrete Aggregates

ASTM C39/C39M (2020) Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens

ASTM C42/C42M (2020) Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete

ASTM C78/C78M (2018) Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)

ASTM C94/C94M (2020) Standard Specification for Ready-Mixed Concrete

ASTM C138/C138M (2017a) Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete

ASTM C143/C143M (2020) Standard Test Method for Slump of

Hydraulic-Cement Concrete

ASTM C150/C150M (2020) Standard Specification for Portland Cement

ASTM C172/C172M (2017) Standard Practice for Sampling Freshly Mixed Concrete

ASTM C173/C173M (2016) Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method

ASTM C231/C231M (2017a) Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

ASTM C260/C260M (2010a; R 2016) Standard Specification for Air-Entraining Admixtures for Concrete

ASTM C311/C311M (2018) Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete

ASTM C330/C330M (2017a) Standard Specification for Lightweight Aggregates for Structural Concrete

ASTM C494/C494M (2019) Standard Specification for Chemical Admixtures for Concrete

ASTM C552 (2017; E 2018) Standard Specification for Cellular Glass Thermal Insulation

ASTM C567/C567M (2019) Determining Density of Structural Lightweight Concrete

ASTM C578 (2019) Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation

ASTM C591 (2020) Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation

ASTM C595/C595M (2020) Standard Specification for Blended Hydraulic Cements

ASTM C618 (2019) Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

ASTM C803/C803M (2018) Standard Test Method for Penetration Resistance of Hardened Concrete

ASTM C845/C845M (2018) Standard Specification for Expansive Hydraulic Cement

ASTM C873/C873M (2015) Standard Test Method for

Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds

ASTM C900 (2015) Standard Test Method for Pullout Strength of Hardened Concrete

ASTM C920 (2018) Standard Specification for Elastomeric Joint Sealants

ASTM C989/C989M (2018a) Standard Specification for Slag Cement for Use in Concrete and Mortars

ASTM C1012/C1012M (2018b) Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution

ASTM C1017/C1017M (2013; E 2015) Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete

ASTM C1074 (2011) Standard Practice for Estimating Concrete Strength by the Maturity Method

ASTM C1077 (2017) Standard Practice for Agencies Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Testing Agency Evaluation

ASTM C1107/C1107M (2020) Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Nonshrink)

ASTM C1116/C1116M (2010a; R 2015) Standard Specification for Fiber-Reinforced Concrete

ASTM C1157/C1157M (2020) Standard Performance Specification for Hydraulic Cement

ASTM C1218/C1218M (2020c) Standard Test Method for Water-Soluble Chloride in Mortar and Concrete

ASTM C1240 (2020) Standard Specification for Silica Fume Used in Cementitious Mixtures

ASTM C1260 (2014) Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)

ASTM C1293 (2008; R 2015) Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction

ASTM C1567 (2013) Standard Test Method for Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate (Accelerated Mortar-Bar Method)

ASTM C1602/C1602M (2018) Standard Specification for Mixing Water Used in Production of Hydraulic Cement Concrete

ASTM C1778 (2016) Standard Guide for Reducing the Risk of Deleterious Alkali-Aggregate Reaction in Concrete

ASTM D412 (2016) Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension

ASTM D471 (2016a) Standard Test Method for Rubber Property - Effect of Liquids

ASTM D1751 (2004; E 2013; R 2013) Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types)

ASTM D1752 (2018) Standard Specification for Preformed Sponge Rubber, Cork and Recycled PVC Expansion Joint Fillers for Concrete Paving and Structural Construction

ASTM D2628 (1991; R 2016) Standard Specification for Preformed Polychloroprene Elastomeric Joint Seals for Concrete Pavements

ASTM D2835 (1989; R 2017) Standard Specification for Lubricant for Installation of Preformed Compression Seals in Concrete Pavements

ASTM D3042 (2017) Standard Test Method for Insoluble Residue in Carbonate Aggregates

ASTM D5759 (2012; R 2020) Characterization of Coal Fly Ash and Clean Coal Combustion Fly Ash for Potential Uses

ASTM D6690 (2015) Standard Specification for Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt Pavements

ASTM E96/E96M (2016) Standard Test Methods for Water Vapor Transmission of Materials

ASTM E329 (2020) Standard Specification for Agencies Engaged in Construction Inspection, Testing, or Special Inspection

ASTM E1155 (2020) Standard Test Method for Determining Floor Flatness and Floor Levelness Numbers

ASTM E1643 (2018a) Standard Practice for Selection, Design, Installation, and Inspection of Water Vapor Retarders Used in Contact with Earth or Granular Fill Under Concrete Slabs

ASTM E1745 (2017) Standard Specification for Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs

ASTM E1993/E1993M (1998; R 2020) Standard Specification for Bituminous Water Vapor Retarders Used in Contact with Soil or Granular Fill Under Concrete Slabs

CONCRETE REINFORCING STEEL INSTITUTE (CRSI)

CRSI 10MSP (2018) Manual of Standard Practice

CRSI RB4.1 (2016) Supports for Reinforcement Used in Concrete

FOREST STEWARDSHIP COUNCIL (FSC)

FSC STD 01 001 (2015) Principles and Criteria for Forest Stewardship

NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (NIST)

NIST PS 1 (2009) DOC Voluntary Product Standard PS 1-07, Structural Plywood

U.S. ARMY CORPS OF ENGINEERS (USACE)

COE CRD-C 513 (1974) Corps of Engineers Specifications for Rubber Waterstops

COE CRD-C 572 (1974) Corps of Engineers Specifications for Polyvinylchloride Waterstops

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

FS SS-S-200 (Rev E; Am 1; Notice 1) Sealant, Joint, Two-Component, Jet-Blast-Resistant, Cold-Applied, for Portland Cement Concrete Pavement

U.S. GREEN BUILDING COUNCIL (USGBC)

LEED NC (2009) Leadership in Energy and Environmental Design(tm) New Construction Rating System

1.2 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. When used, a code following the "G" classification identifies the office that will review the submittal for the

Government. Submit the following:

SD-03 Product Data

Joint Sealants; (LEED NC)

Joint Filler; (LEED NC)

Cementitious Materials; (LEED NC)

Vapor Retarder

Concrete Curing Materials

Reinforcement; (LEED NC)

Admixtures

SD-06 Test Reports

Concrete Mix Design; G

Compressive Strength Tests; G

Air Content

Slump Tests

SD-07 Certificates

Reinforcing Bars

Safety Data Sheets

Field Testing Technician and Testing Agency

SD-08 Manufacturer's Instructions

Joint Sealants; (LEED NC)

Curing Compound

1.3 DELIVERY, STORAGE, AND HANDLING

Follow ACI 301, ACI 304R and ASTM A934/A934M requirements and recommendations. Do not deliver concrete until vapor retarder, forms, reinforcement, embedded items, and chamfer strips are in place and ready for concrete placement. Do not store concrete curing compounds or sealers with materials that have a high capacity to adsorb volatile organic compound (VOC) emissions. Do not store concrete curing compounds or sealers in occupied spaces.

1.3.1 Reinforcement

Store reinforcement of different sizes and shapes in separate piles or racks raised above the ground to avoid excessive rusting. Protect from contaminants such as grease, oil, and dirt. Ensure bar sizes can be accurately identified after bundles are broken and tags removed.

PART 2 PRODUCTS

2.1 FORMWORK MATERIALS

a. Form-facing material in contact with concrete must be plywood, tempered concrete-form-grade hardboard, metal, plastic, or treated paper that creates specified appearance and texture of concrete surface. Submit product information on proposed form-facing materials if different from that specified herein.

b. Design formwork, shores, reshores, and backshores to support loads transmitted to them and to comply with applicable building code requirements.

c. Design formwork and shoring for load redistribution resulting from stressing of post-tensioned reinforcement. Ensure that formwork allows movement resulting from application of prestressing force.

d. Design formwork to withstand pressure resulting from placement and vibration of concrete and to maintain specified tolerances.

e. Design formwork to accommodate waterstop materials in joints at locations indicated in Contract Documents.

f. Provide temporary openings in formwork if needed to facilitate cleaning and inspection.

g. Design formwork joints to inhibit leakage of mortar.

h. Do not use earth cuts as forms for vertical or sloping surfaces.

2.2 CONCRETE MATERIALS

2.2.1 Cementitious Materials

2.2.1.1 Portland Cement

a. Unless otherwise specified, provide cement that conforms to ASTM C150/C150M Type I and meets low alkali content requirements.

2.2.2 Water

a. Water must comply with the requirements of ASTM C1602/C1602M.

b. Minimize the amount of water in the mix. Improve workability by adjusting the grading of the aggregate and using admixture rather than by adding water.

c. Water must be potable; free from injurious amounts of oils, acids, alkalis, salts, organic materials, or other substances deleterious to concrete.

2.2.3 Aggregate

2.2.3.1 Normal-Weight Aggregate

a. Aggregates must conform to ASTM C33/C33M.

b. Store and handle aggregate in a manner that will avoid segregation and prevents contamination by other materials or other sizes of aggregates.

Store aggregates in locations that will permit them to drain freely.

Do not use aggregates that contain frozen lumps.

2.2.3.2 Lightweight Aggregate

Lightweight aggregate in accordance with ASTM C330/C330M.

2.2.4 Admixtures

a. Chemical admixtures must conform to ASTM C494/C494M.

b. Air-entraining admixtures must conform to ASTM C260/C260M.

c. Chemical admixtures for use in producing flowing concrete must conform to ASTM C1017/C1017M.

d. Do not use calcium chloride admixtures.

e. Admixtures used in concrete must be the same as those used in the concrete represented by submitted field test records or used in trial mixtures.

f. Protect stored admixtures against contamination, evaporation, or damage.

g. Submit types, brand names, producers' names, manufacturer's technical data sheets, and certificates showing compliance with standards required herein.

2.3 MISCELLANEOUS MATERIALS

2.3.1 Concrete Curing Materials

Provide concrete curing material in accordance with ACI 301 Section 5 and ACI 308.1 Section 2. Submit product data for concrete curing compounds.

Submit manufactures instructions for placement of curing compound.

2.3.2 Nonshrink Grout

Nonshrink grout in accordance with ASTM C1107/C1107M.

2.3.3 Floor Finish Materials

2.3.3.1 Liquid Chemical Floor Hardeners and Sealers

a. Hardener must be a colorless aqueous solution containing a blend of inorganic silicate or siliconate material and proprietary components combined with a wetting agent; that penetrates, hardens, and densifies concrete surfaces. Submit manufactures instructions for placement of liquid chemical floor hardener.

b. Use concrete penetrating sealers with a low (maximum 100 grams/liter, less water and less exempt compounds) VOC content. Submit manufactures instructions for placement of sealers.

2.3.4 Expansion/Contraction Joint Filler

ASTM D1751 Type I. Material must be 1/2 inch thick, unless otherwise indicated.

2.3.5 Joint Sealants

Submit manufacturer's product data, indicating VOC content.

2.3.5.1 Horizontal Surfaces, 3 Percent Slope, Maximum

ASTM D6690 or ASTM C920, Type M, Class 25, Use T.

2.3.5.2 Preformed Polychloroprene Elastomeric Type

ASTM D2628.

2.3.5.3 Lubricant for Preformed Compression Seals

ASTM D2835.

2.3.6 Vapor Retarder and Vapor Barrier

ASTM E1745 Class Apolyethylene sheeting, minimum 10 mil thickness or other equivalent material with a maximum permeance rating of 0.04 perms per

ASTM E96/E96M.

Consider plastic vapor retarders and adhesives with a high recycled content, low toxicity low VOC (Volatile Organic Compounds) levels.

2.4 CONCRETE MIX DESIGN

2.4.1 Properties and Requirements

a. Use materials and material combinations listed in this section and the contract documents.

b. Cementitious material content must be adequate for concrete to satisfy the specified requirements for strength, w/cm, durability, and finishability described in this section and the contract documents.

c. Selected target slump must meet the requirements this section, the contract documents, and must not exceed 4-in (Plus or minus 1-in).

Concrete must not show visible signs of segregation.

d. The target slump must be enforced for the duration of the project.

Determine the slump by ASTM C143/C143M. Slump tolerances must meet the requirements of ACI 117.

e. The nominal maximum size of coarse aggregate for a mixture must not exceed three-fourths of the minimum clear spacing between reinforcement, one-fifth of the narrowest dimension between sides of forms, or one-third of the thickness of slabs or toppings.

f. Concrete must be air entrained for members assigned to Exposure Class F1, F2, or F3. The total air content must be in accordance with the requirements of the paragraph titled DURABILITY.

g. Measure air content at the point of delivery in accordance with ASTM C173/C173M or ASTM C231/C231M.

h. Concrete for slabs to receive a hard-troweled finish must not contain an air-entraining admixture or have a total air content greater than 3 percent.

i. Concrete properties and requirements:

Minimum compressive strength: 3,500 psi at 28 days.

Exposure Class: F1.

2.4.2 Durability

2.4.2.1 Alkali-Aggregate Reaction

Do not use any aggregate susceptible to alkali-carbonate reaction (ACR).

Use one of the three options below for qualifying concrete mixtures to reduce the potential of alkali-silica reaction (ASR):

a. For each aggregate used in concrete, the expansion result determined in accordance with ASTM C1293 must not exceed 0.04 percent at one year.

2.4.2.2 Freezing and Thawing Resistance

a. Provide concrete meeting the following requirements based on exposure class assigned to members for freezing-and-thawing exposure in Contract Documents:

Exposure class

Maximum w/cm*

Minimum f'c, psi Air content

Additional Requirements

F0 N/A 2500 N/A

F1 0.45 3500 Depends on aggregate size

N/A

F2 0.45 4500 Depends on aggregate size

See limits on maximum cementitious material by mass F3 0.40 5000 Depends on aggregate size

See limits on maximum cementitious material by

F3 plain concrete

0.45 4500 Depends on aggregate size

See limits on maximum cementitious material by

*The maximum w/cm limits do not apply to lightweight concrete.

b. Concrete must be air entrained for members assigned to Exposure Class F1, F2, or F3. The total air content must meet the requirements of the following table:

Nominal maximum aggregate size, in.

Total air content, percent*^ Exposure Class F2 and F3 Exposure Class F1

3/8 7.5 6.0

1/2 7.0 5.5

3/4 6.0 5.0

1 6.0 4.5

1-1/2 5.5 4.5

2 5.0 4.0

3 5.5 3.5

*Tolerance on air content as delivered must be plus/minus 1.5 percent.

^For f'c greater than 5000 psi, reducing air content by 1.0 percentage point is acceptable.

c. Submit documentation verifying compliance with specified requirements.

d. For sections of the structure that are assigned Exposure Class F3, submit certification on cement composition verifying that concrete mixture meets the requirements of the following table:

Cementitious material Maximum percent of total cementitious material by mass* Fly ash or other pozzolans conforming to ASTM C618

Slag cement conforming to

ASTM C989/C989M

Silica fume conforming to ASTM C1240 10

Total of fly ash or other pozzolans, slag cement, and silica f

50^

Total of fly ash or other pozzolans and silica fume

35^

*Total cementitious material also includes ASTM C150/C150M, ASTM C595/C595M, ASTM C845/C845M, and ASTM C1157/C1157M cement. The maximum percentages above must include:

i. Fly ash or other pozzolans present in ASTM C1157/C1157M or ASTM C595/C595M Type IP blended cement.

ii. Slag cement present in ASTM C1157/C1157M or ASTM C595/C595M Type IS blended cement.

iii. Silica fume conforming to ASTM C1240 present in ASTM C1157/C1157M or ASTM C595/C595M Type IP blended cement.

^Fly ash or other pozzolans and silica fume must constitute no more than 25 percent and 10 percent, respectively, of the total mass of the cementitious materials.

2.4.3 Ready-Mix Concrete

Provide concrete that meets the requirements of ASTM C94/C94M.

Ready-mixed concrete manufacturer must provide duplicate delivery tickets with each load of concrete delivered. Provide delivery tickets with the following information in addition to that required by ASTM C94/C94M:

a. Type and brand cement

b. Cement and supplementary cementitious materials content in 94-pound bags per cubic yard of concrete

c. Maximum size of aggregate

d. Amount and brand name of admixtures

e. Total water content expressed by water cementitious material ratio

2.5 REINFORCEMENT

a. Bend reinforcement cold. Fabricate reinforcement in accordance with fabricating tolerances of ACI 117.

b. When handling and storing coated reinforcement, use equipment and methods that do not damage the coating. If stored outdoors for more than 2 months, cover coated reinforcement with opaque protective material.

c. Submit manufacturer's certified test report for reinforcement.

d. Submit placing drawings showing fabrication dimensions and placement locations of reinforcement and reinforcement supports. Placing drawings must indicate locations of splices, lengths of lap splices, and details of mechanical and welded splices.

e. Submit request with locations and details of splices not indicated in Contract Documents.

f. Submit request to place column dowels without using templates.

g. Submit request for field cutting, including location and type of bar to be cut and reason field cutting is required.

2.5.1 Reinforcing Bars

a. Reinforcing bars must be deformed, except spirals, load-transfer dowels, and welded wire reinforcement, which may be plain.

ASTM A615/A615M with the bars marked S, Grade 60; or ASTM A996/A996M with the bars marked R, Grade 60, or marked A, Grade 60.

b Submit mill certificates for reinforcing bars.

2.5.2 Reinforcing Bar Supports

a. Provide reinforcement support types within structure as required by Contract Documents. Reinforcement supports must conform to CRSI RB4.1.

Submit description of reinforcement supports and materials for fastening coated reinforcement if not in conformance with CRSI RB4.1.

2.5.3 Dowels for Load Transfer in Floors

Provide greased dowels for load transfer in floors of the type, design, weight, and dimensions indicated. Provide dowel bars that are plain-billet steel conforming to ASTM A615/A615M, Grade 40. Provide dowel pipe that is steel conforming to ASTM A53/A53M.

2.5.4 Welding

a. Provide weldable reinforcing bars that conform to ASTM A706/A706M and ASTM A615/A615M and Supplement S1, Grade 60, except that the maximum carbon content must be 0.55 percent.

b. Comply with AWS D1.4/D1.4M unless otherwise specified. Do not tack weld reinforcing bars.

c. Welded assemblies of steel reinforcement produced under factory conditions, such as welded wire reinforcement, bar mats, and deformed bar anchors, are allowed.

d. After completing welds on zinc-coated (galvanized), epoxy-coated, or zinc and epoxy dual-coated reinforcement, coat welds and repair coating damage as previously specified.

PART 3 EXECUTION

3.1 EXAMINATION

a. Do not begin installation until substrates have been properly constructed; verify that substrates are level.

b. If substrate preparation is the responsibility of another installer, notify Contracting Officer of unsatisfactory preparation before processing.

c. Check field dimensions before beginning installation. If dimensions vary too much from design dimensions for proper installation, notify Contracting Officer and wait for instructions before beginning installation.

3.2 PREPARATION

Determine quantity of concrete needed and minimize the production of excess concrete. Designate locations or uses for potential excess concrete before the concrete is poured.

3.2.1 General

a. Surfaces against which concrete is to be placed must be free of debris, loose material, standing water, snow, ice, and other deleterious substances before start of concrete placing.

b. Remove standing water without washing over freshly deposited concrete.

Divert flow of water through side drains provided for such purpose.

3.2.2 Subgrade Under Slabs on Ground

a. Before construction of slabs on ground, have underground work on pipes and conduits completed and approved.

b. Previously constructed subgrade or fill must be cleaned of foreign materials

c. Finish surface of capillary water barrier under interior slabs on ground must not show deviation in excess of 1/4 inch when tested with a 10-foot straightedge parallel with and at right angles to building lines.

d. Finished surface of subgrade or fill under exterior slabs on ground must not be more than 0.02-foot above or 0.10-foot below elevation indicated.

3.2.3 Edge Forms and Screed Strips for Slabs

a. Set edge forms or bulkheads and intermediate screed strips for slabs to obtain indicated elevations and contours in finished slab surface and must be strong enough to support vibrating bridge screeds or roller pipe screeds if nature of specified slab finish requires use of such equipment.

b. Align concrete surface to elevation of screed strips by use of strike-off templates or approved compacting-type screeds.

3.2.4 Reinforcement and Other Embedded Items

a. Secure reinforcement, joint materials, and other embedded materials in position, inspected, and approved before start of concrete placing.

b. When concrete is placed, reinforcement must be free of materials deleterious to bond. Reinforcement with rust, mill scale, or a combination of both will be considered satisfactory, provided minimum nominal dimensions, nominal weight, and minimum average height of deformations of a hand-wire-brushed test specimen are not less than applicable ASTM specification requirements.

3.3 FORMS

a. Provide forms, shoring, and scaffolding for concrete placement. Set forms mortar-tight and true to line and grade.

b. Chamfer above grade exposed joints, edges, and external corners of…

This is the start of the file's text. The full file is on GovTribe.

File details come from the government source that posted it. Updated .