J.4 Specifications (57 Pages).pdf

SUMMARY OF WORK SECTION 01010-1

USDA FOREST SERVICE, RMRS

SIERRA ANCHA WEIR REPAIRS

SECTION 010100 - SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. Work for this project consists of headgate installations, weir notch replacement, minor concrete and masonry repairs, and miscellaneous carpentry work.

1.2 LOCATION

A. This project is located in the Sierra Ancha Experimental Forest, within the Tonto National Forest. The project site is approximately 24 miles south of the town of Globe, AZ

1.3 GENERAL SITE CONDITIONS AND WEATHER

A. The elevation of the site is approximately 6,700 feet above mean sea level.

B. In-depth soil surveys have not been performed; however, rocks at the ground surface are evident throughout the area. The Contractor should expect to encounter such rock during excavation and grubbing operations.

1.4 USE OF PREMISES

A. General: Contractor shall have full use of premises for construction operations, including use of Project site, during construction period. Contractor's use of premises is limited only by the Government's right to perform work or to retain other contractors on portions of Project.

B. Contractor shall at all times conduct his operations to ensure the least inconvenience to the public and employees.

C. Confine storage of materials to areas as approved by the CO.

D. Contractor shall provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Contractor shall minimize disturbance of all undisturbed areas.

E. Preservation of Natural Features: Confines all operations to work limits of the project.

Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval.

Consult with CO and remove agreed-on roots and branches that interfere with construction.

SUMMARY OF WORK SECTION 01010-2

3. Do not fasten ropes, cables, or guys to existing trees.

4. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

1.5 MEALS AND LODGING

A. Meals and lodging are commercially available in the City of Miami within 42 miles of the construction site. Meals or lodging will not be available at Forest Service facilities.

1.6 CAMPING

A. With approval by the Rocky Mountain Research Station, National Forest Service lands may be used by the Contractor to have one fully contained recreation vehicle which may remain at this site for security.

1.7 CONSTRUCTION SEQUENCE

A. In-channel work should be scheduled in the months of October and November, when creek flows are at their lowest.

B. Depending on conditions, normal fire restrictions may apply to activities associated with this project.

1.8 FIELD VERIFICATION

A. Field verify all new and existing dimensions affecting the work of this contract before ordering products.

1.9 PERMITS

A. Special permits for electrical work or any other permits required by County, State, or Federal laws or regulations shall be obtained by the Contractor.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION (Not Used)

3.1 STREAM DIVERSION

A. Construct temporary channels, temporary culverts, earth berms, or sandbags to divert water around disturbed areas and slopes. Use temporary channels, temporary culverts, pumps, sandbags, or other methods to divert the flow of live streams for headgate installations and other work as necessary.

END OF SECTION 010100

May 2023

MOBILIZATION SECTION 011900-1

SIERRA ANCHA WEIR REPAIRS

SECTION 011900 - MOBILIZATION

PART 1 - GENERAL

1.1 SUMMARY

A. This item is intended to compensate the Contractor for operations including, but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for payment of premiums for bonds and insurance for the project; and for any other work and operations which must be performed or costs that must be incurred incident to the initiation of meaningful work at the site and for which payment is not otherwise provided for under the contract.

1.2 MEASUREMENT AND PAYMENT

A. The measurement shall be lump sum for mobilization. Payment shall be as follows:

1. Bond premiums will be reimbursed after receipt of the evidence of payment.

2. 50% of the lump sum, not to exceed 5% of the original contract amount, will be paid following completion of 5% of the original contract amount not including mobilization and bond premiums.

3. Payment of the remaining portion of the lump sum, up to 10% of the original contract amount, will be paid following completion of 10% of the original contract amount not including mobilization and bond premiums.

4. Any portion of the lump sum in excess of 10% of the original contract amount will be paid after final acceptance.

5. Progress payments for mobilization and preparatory work shall be subject to retainage.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

END OF SECTION 011900

SUBMITTAL PROCEDURES 013300-1

SIERRA ANCHA WEIR REPAIRS

SECTION 013300 - SUBMITTAL PROCEDURES

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes administrative and procedural requirements for submitting Shop Drawings, Product Data, Samples, and other miscellaneous submittals. See Table 013300-1 for a summary of required submittals.

B. See other specification section within this package for additional requirements on submittal.

1.2 SUBMITTAL PROCEDURES

A. Coordination: Coordinate preparation and processing of submittals with performance of construction activities.

1. Coordinate transmittal of different types of submittals for related parts of the Work so processing will not be delayed because of need to review submittals concurrently for coordination.

a. The Contracting Officer (CO) reserves the right to withhold action on a submittal requiring coordination with other submittals until related submittals are received.

B. Processing Time: Allow enough time for submittal review, including time for re-submittals, as follows. Time for review shall commence on CO's receipt of submittal.

1. Initial Review: Allow 14 days for initial review of each submittal. Allow additional time if processing must be delayed to permit coordination with subsequent submittals. CO will advise Contractor when a submittal being processed must be delayed for coordination.

2. If intermediate submittal is necessary, process it in same manner as initial submittal.

3. Allow 14 days for processing each re-submittal.

4. No extension of the Contract Time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing.

C. Identification: Place a permanent label or title block on each submittal for identification.

1. Indicate name of firm or entity that prepared each submittal on label or title block.

2. Provide a space on label or beside title block to record Contractor's review and approval markings and action taken by CO.

3. Include the following information on label for processing and recording action taken:

SUBMITTAL PROCEDURES 013300-2

a. Project name.

b. Date.

c. Name and address of Contractor.

d. Name of manufacturer.

e. Unique identifier, including revision number.

f. Number and title of appropriate Specification Section.

g. Drawing number and detail references, as appropriate.

h. If more than one item is shown on submittal sheet, identify item.

D. Deviations: Highlight, encircle, or otherwise identify deviations from the Contract Documents on submittals.

E. Additional Copies: Unless additional copies are required for final submittal, and unless CO observes noncompliance with provisions of the Contract Documents, initial submittal may serve as final submittal.

F. Use for Construction: Use only final submittals with mark indicating action taken by CO in connection with construction.

1.3 MEASUREMENT AND PAYMENT

A. No separate measurement and/or payment will be made for this section. Payment shall be included with work shown in the schedule of items.

PART 2 - PRODUCTS

2.1 ACTION SUBMITTALS – (Submittals requiring CO approval)

A. General: Prepare and submit Action Submittals required by individual Specification Sections.

1. Submit each submittal to CO and COR by e-mail, unless otherwise indicated.

Retain returned copy as a Project Record Document.

B. Product Data: Collect information into a single submittal for each element of construction and type of product or equipment.

1. If information must be specially prepared for submittal because standard printed data are not suitable for use, submit as Shop Drawings, not as Product Data.

2. Mark each submittal to show which products and options are applicable.

3. Include the following information, as applicable:

a. Manufacturer's written recommendations.

b. Manufacturer's product specifications.

c. Manufacturer's installation instructions.

d. Manufacturer's catalog cuts.

e. Wiring diagrams showing factory-installed wiring.

f. Compliance with recognized trade association standards.

g. Compliance with recognized testing agency standards.

SUBMITTAL PROCEDURES 013300-3

C. Shop Drawings: Prepare Project-specific information, drawn accurately to scale. Do not base Shop Drawings on reproductions of the Contract Documents or standard printed data.

1. Preparation: Include the following information, as applicable:

a. Dimensions.

b. Identification of products.

c. Fabrication and installation drawings.

d. Roughing-in and setting diagrams.

e. Wiring diagrams showing field-installed wiring, including power, signal, and control wiring.

f. Notation of dimensions established by field measurement.

2. Wiring Diagrams: Differentiate between manufacturer-installed and field-installed wiring.

D. Contractor's Construction Schedule: The contractor shall submit a Construction Schedule, for approval by CO, in accordance with the contract provisions at least 5 business days prior to commencement of work.

E. Samples: Prepare physical units of materials or products, including the following:

1. Samples for Initial Selection: Submit manufacturer's color charts consisting of units or sections of units showing the full range of colors, textures, and patterns available.

2.2 INFORMATIONAL SUBMITTALS – (Submittals NOT requiring CO approval)

A. General: Prepare and submit Informational Submittals required by other Specification Sections.

1. Submit each submittal to CO and COR by e-mail, unless otherwise indicated.

Retain returned copy as a Project Record Document.

2. Certificates and Certifications: Certificates and certifications shall be signed by an officer or other individual authorized to sign documents on behalf of that entity.

3. Test and Inspection Reports: Comply with requirements in Section 014100 "Quality Control."

B. Material Test Reports: Prepare reports written by a qualified testing agency, on testing agency's standard form, indicating and interpreting test results of material for compliance with requirements.

C. Field Test Reports: Prepare reports written by a qualified testing agency, on testing agency's standard form, indicating and interpreting results of field tests performed either during installation of product or after product is installed in its final location, for compliance with requirements.

D. Maintenance Data: Prepare written and graphic instructions and procedures for operation and normal maintenance of products and equipment.

SUBMITTAL PROCEDURES 013300-4

E. Manufacturer's Instructions: Prepare written or published information that documents manufacturer's recommendations, guidelines, and procedures for installing or operating a product or equipment. Include name of product and name, address, and telephone number of manufacturer.

PART 3 - EXECUTION

3.1 GENERAL

A. Review each submittal and check for compliance with the Contract Documents. Note corrections and field dimensions. Mark with approval stamp before submitting to CO.

B. Approval Stamp: Stamp each submittal with a uniform, approval stamp. Include Project name and location, submittal number, Specification Section title and number, name of reviewer, date of Contractor's approval, and statement certifying that submittal has been reviewed, checked, and approved for compliance with the Contract Documents.

C. CO will not review submittals that do not bear Contractor's approval stamp and will return them without action.

D. Submittals not required by the Contract Documents will not be reviewed and may be discarded.

E. Substitutions – Whenever materials, products, and equipment are listed by name or brand in the specifications and/or on the drawings, it is used as a measure of quality, utility, or standard. If the Contractor prefers to use any other brand or manufacturer of same quality, appearance and utility to that specified, he shall request substitution as provided below, not less than 30 days before the planned installation of the item. The Contracting Officer will approve or disapprove the request for substitution.

F. Requests for substitutions will only be considered if contractor submits the following:

1. Complete technical data including drawings, complete performance specifications, test data, samples and performance tests of the article proposed for substitution. Submit additional information if required by Contracting Officer.

All items in the above information shall be circled, tagged, or marked in some way to indicate all deviations or differences which the proposed item differs from the originally specified item.

2. Similar data as above for item originally specified. All items shall be marked to identify where/how the proposed substitution will differ.

3. A statement by the Contractor that the proposed substitution is in full compliance with the contract documents, applicable codes, and laws.

4. The Contractor shall be responsible for any effect upon related work in the project for any substitution and shall pay any additional costs generated by any substitutions.

3.2 SUBMITTAL SCHEDULE – Submittals shall be made as required by and called for in the drawings and specifications. The following table is a summary of the required

SUBMITTAL PROCEDURES 013300-5

submittals for the project - the table is to assist the Contractor and may not be all inclusive – additional submittals may be required by specific specifications:

TABLE 013000-1

Spec.

Section Section Title Subsec-tion Required Submittal

C Statement of Work 3.0 Product Data 013300 Submittal Procedures 2.1 D Construction Schedule 014100 Quality Control 1.3 A Contractor quality control plan 014100 Quality Control 1.3 B Permits, Licenses, and Certifi-cates 014100 Quality Control 1.3 C As-Built drawings 017320 Selective Demolition 1.4 A Predemolition Photos 017320 Selective Demolition 1.4 B Landfill Records 039300 Concrete Rehabilitation 1.4 A Product Data 039300 Concrete Rehabilitation 1.4 B Certificates 049020 Stone Restoration & Cleaning 1.3 A Product Data 055000 Metal Fabrications 1.3 A Shop Drawings 055000 Metal Fabrications 1.3 B Mill Certificates 055210 Pipe and Tube Railings 1.3 A Product Data 055210 Pipe and Tube Railings 1.3 B Shop Drawings 055210 Pipe and Tube Railings 1.3 C Welding Certificates 061000 Rough Carpentry 1.2 A Product Data 074600 Siding 1.3 A Product Data 074600 Siding 1.3 B Samples 074600 Siding 1.3 C Warranty Documents

END OF SECTION 013300

QUALITY CONTROL SECTION 014100-1

SIERRA ANCHA WEIR REPAIRS

SECTION 014100 – QUALITY CONTROL

PART 1 - GENERAL

1.1 This work shall consist of providing quality control in conformance with the inspection, testing, and product certification requirements of this contract to ensure compliance with the drawings and specifications. The Contractor shall provide all personnel, equipment, tests, and reports necessary to meet the requirements of the contract.

1.2 QUALITY CONTROL

A. The Contractor shall provide and maintain a quality control system that will ensure all services, supplies, and construction work required under this contract conforms to the contract requirements. The Contractor shall perform, or cause to be performed, the sampling, inspection, and testing required to substantiate that all services, supplies, and construction conform to the contract requirements.

B. Special Tests and Inspections: Contractor will engage a testing agency to conduct required special tests and inspections. The Contractor shall authorize the testing agency to perform the required testing and inspections on the work completed. The authority shall include:

1. Testing agency will interpret tests and inspections and state in each report whether tested and inspected work complies with or deviates from the Contract Documents.

2. Testing agency will re-test and re-inspect corrected work.

C. Retesting/Reinspecting: Contractor shall provide quality-control services for retesting and reinspection for replaced construction work or for work that failed to comply with the requirements under the contract.

1.3 SUBMITTALS

A. Contractor Quality Control Plan

B. Permits, Licenses, and Certificates

C. As-Built Drawings

1.4 MEASUREMENT AND PAYMENT

A. No separate payment will be made for the work included under this section; rather payment shall be considered to be included in the items of work listed in the Schedule of Items.

PART 2 - PRODUCTS (Not Applicable)

QUALITY CONTROL SECTION 014100-2

PART 3 - EXECUTION

3.1 QUALITY CONTROL SYSTEM

A. General: Perform required testing, inspections, sampling, and similar services per direction specified in the contract drawings and specifications and in accordance with established industry standards.

3.2 CONTRACTOR QUALITY CONTROL PLAN

A. At the time of the preconstruction conference, the Contractor shall submit for approval a written Contractor Quality Control Plan.

1. If the plan requires any revisions or corrections, the Contractor shall resubmit the plan within 10 days.

2. The Government reserves the right to require changes in the plan during the contract period as necessary.

3. No change in the approved plan may be made without written concurrence by the Contracting Officer.

4. At a minimum, the plan shall include the following:

a. A list of personnel responsible for quality control and assigned duties.

Include each person's qualifications.

b. A copy of a letter of direction to the Contractor's Quality Control Supervisor outlining assigned duties.

c. Names, qualifications, and descriptions of laboratories to perform sampling and testing, and samples of proposed report forms.

d. Methods of performing, documenting, and enforcing quality control of all work.

e. Methods of monitoring and controlling environmental pollution and contamination as required by all applicable regulations and laws.

3.3 PERMITS, LICENSES, AND CERTIFICATES

A. For Contracting Officer’s records, submit copies of permits, licenses, certifications, inspection reports, releases, jurisdictional settlements, notices, receipts for fee payments, judgments, correspondence, records, and similar documents, established for compliance with standards and regulations relevant to the on performance of the work.

3.4 AS-BUILT DRAWINGS

A. The Contractor shall maintain a set of the contract drawings depicting as-built conditions. These drawings shall be maintained in a current condition and shall be available for review. All variations from the original contract drawings shall be indicated in red on the drawings. Upon completion of the contract work, as-built drawings shall be submitted to the Contracting Officer.

3.5 SAMPLING, TESTING, AND CERTIFICATION REQUIREMENTS

QUALITY CONTROL SECTION 014100-3

A. Sampling, testing, and Certification requirements and frequency for specific items shall be as specified in the drawings and specification.

END OF SECTION 014100

SELECTIVE DEMOLITION SECTION 017320-1

SIERRA ANCHA WEIR REPAIRS

SECTION 017320 - SELECTIVE DEMOLITION

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes demolition and removal of the following:

1. Selected portions of a building or structure.

2. Selected site elements.

3. Repair procedures for selective demolition operations.

1.2 DEFINITIONS

A. Remove: Detach items from existing construction and legally dispose of them off-site, unless indicated to be removed and salvaged or removed and reinstalled.

B. Remove and Salvage: Detach items from existing construction and deliver them to Government.

C. Remove and Reinstall: Detach items from existing construction, prepare them for reuse, and reinstall them where indicated.

D. Existing to Remain: Existing items of construction that are not to be removed and that are not otherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

1.3 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain Government property, demolished materials shall become Contractor's property and shall be removed from Project site.

1.4 SUBMITTALS

A. Predemolition Photographs or Videotape: Show existing conditions of adjoining construction and site improvements that might be misconstrued as damage caused by selective demolition operations. Submit before Work begins.

B. Landfill Records: Indicate receipt and acceptance of hazardous wastes by a landfill facility licensed to accept hazardous wastes.

1.5 QUALITY ASSURANCE

A. Demolition Firm Qualifications: An experienced firm that has specialized in demolition work similar in material and extent to that indicated for this Project.

SELECTIVE DEMOLITION SECTION 017320-2

B. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

C. Standards: Comply with ANSI A10.6 and NFPA 241.

D. Predemolition Conference: Conduct conference at Project site.

1.6 PROJECT CONDITIONS

A. Maintain access to existing adjacent roadway

1. Do not close roadway without written permission from authorities having jurisdiction.

B. Government assumes no responsibility for condition of areas to be selectively demolished.

1. Conditions existing at time of inspection for bidding purpose will be maintained by Government as far as practical.

C. Hazardous Materials: It is not expected that hazardous materials will be encountered in the Work.

1. If materials suspected of containing hazardous materials are encountered, do not disturb; immediately notify Contracting Officer (CO). Hazardous materials will be removed by Government under a separate contract.

D. Storage or sale of removed items or materials on-site will not be permitted.

PART 2 - PRODUCTS

2.1 REPAIR MATERIALS

A. Use repair materials identical to existing materials.

1. Use materials whose installed performance equals or surpasses that of existing materials.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

B. Inventory and record the condition of items to be removed and reinstalled and items to be removed and salvaged.

C. When unanticipated mechanical, electrical, or structural elements that conflict with intended function or design are encountered, investigate and measure the nature and extent of conflict. Promptly submit a written report to CO.

SELECTIVE DEMOLITION SECTION 017320-3

3.2 UTILITY SERVICES

3.3 PREPARATION

A. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, walkways, and other adjacent occupied and used facilities.

1. Do not close or obstruct streets, walks, walkways, or other adjacent occupied or used facilities without permission from CO and authorities having jurisdiction.

Provide alternate routes around closed or obstructed traffic ways if required by governing regulations.

2. Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by authorities having jurisdiction.

3. Protect existing site improvements, appurtenances, and landscaping to remain.

B. Temporary Facilities: Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

C. Temporary Enclosures: Provide temporary enclosures for protection of existing building and construction, in progress and completed, from exposure, foul weather, other construction operations, and similar activities. Provide temporary weathertight enclosure for building exterior.

3.4 POLLUTION CONTROLS

A. Dust Control: Use water mist, temporary enclosures, and other suitable methods to limit spread of dust and dirt. Comply with governing environmental-protection regulations.

B. Disposal: Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

1. Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level in a controlled descent.

C. Cleaning: Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

3.5 SELECTIVE DEMOLITION

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations.

1. Neatly cut openings and holes plumb, square, and true to dimensions required.

Use cutting methods least likely to damage construction to remain or adjoining construction.

SELECTIVE DEMOLITION SECTION 017320-4

2. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

3. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations.

4. Locate selective demolition equipment and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

B. Existing Facilities: Comply with CO’s requirements for using and protecting stairs, walkways, and other facilities during selective demolition operations.

C. Removed and Salvaged Items:

1. Clean salvaged items.

2. Pack or crate items after cleaning. Identify contents of containers.

3. Store items in a secure area until delivery to Government.

4. Transport items to Government storage area designated by CO.

5. Protect items from damage during transport and storage.

D. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse. Paint equipment to match new equipment.

2. Pack or crate items after cleaning and repairing. Identify contents of containers.

3. Protect items from damage during transport and storage.

4. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

E. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by CO, items may be removed to a suitable, protected storage location during selective demolition [and cleaned] and reinstalled in their original locations after selective demolition operations are complete.

3.6 PATCHING AND REPAIRS

A. General: Promptly repair damage to adjacent construction caused by selective demolition operations.

B. Repairs: Where repairs to existing surfaces are required, patch to produce surfaces suitable for new materials.

1. Completely fill holes and depressions in existing masonry walls that are to remain with an approved masonry patching material applied according to manufacturer's written recommendations.

C. Finishes: Restore exposed finishes of patched areas and extend restoration into adjoining construction in a manner that eliminates evidence of patching and refinishing.

SELECTIVE DEMOLITION SECTION 017320-5

3.7 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Promptly dispose of demolished materials. Do not allow demolished materials to accumulate on-site.

B. Burning: Do not burn demolished materials.

C. Disposal: Transport demolished materials off Government property and legally disposes of them.

END OF SECTION 017320

CONCRETE REHABILITATION SECTION 039300-1

SIERRA ANCHA WEIR REPAIRS

SECTION 039300 - CONCRETE REHABILITATION

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Removal of deteriorated concrete and subsequent patching and rebuilding.

2. Epoxy crack injection.

3. Corrosion-inhibiting treatments.

B. Related Sections include the following:

1. Division 1 Section "Selective Demolition."

1.3 MEASUREMENT AND PAYMENT

A. MEASUREMENT: Unit prices include costs of field quality-control testing required by the Work for which the unit price applies.

B. Concrete Removal and Patching or Rebuilding: Work will be paid for by the cubic foot (cubic meter) computed on the basis of rectangular solid shapes approximating the actual shape of concrete removed and replaced with average depths, widths, and lengths, measured to the nearest inch (centimeter).

1. Reinforcing bar replacement will be paid for separately by the pound (kilogram) of replacement steel with welded and mechanical splices paid for by the unit.

C. Epoxy Crack Injection: Work will be paid for by the linear foot (linear meter) of crack injected.

D. PAYMENT: Payment with be at the contract unit price as described above and shown on the Schedule of Items.

1.4 SUBMITTALS

A. Product Data: Include material descriptions, chemical composition, physical properties, test data, and mixing and application instructions.

1. Include Material Safety Data Sheets, if applicable.

CONCRETE REHABILITATION SECTION 039300-2

B. Product Certificates: Signed by manufacturers certifying that products furnished comply with requirements and are recommended by manufacturer for uses indicated.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: In addition to other requirements in Division 1 Section "Quality Requirements," retain installers that employ workers trained and approved by manufacturer to apply concrete patching and rebuilding materials, epoxy crack injection materials, and polymer sealers.

B. Source Limitations: Obtain each of the following through one source from a single manufacturer:

1. Concrete patching and rebuilding materials.

2. Epoxy crack injection materials.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to Project site in manufacturer's original and unopened containers, labeled with type and name of products and manufacturers.

B. Comply with manufacturer's written instructions for minimum and maximum temperature requirements and other conditions for storage.

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

D. Store aggregates in a dry, covered location, where grading and other required characteristics can be maintained and contamination avoided.

1.7 PROJECT CONDITIONS

A. Environmental Limitations for Epoxies: Do not apply when air and substrate temperatures are outside limits permitted by manufacturer. During hot weather, cool epoxy components before mixing, store mixed products in shade, and cool unused mixed products to retard setting. Do not apply to wet substrates unless approved by manufacturer.

1. Use only Class A epoxies when substrate temperatures are below or are expected to go below 40 deg F (5 deg C) within 8 hours.

2. Use only Class A or B epoxies when substrate temperatures are below or are expected to go below 60 deg F (16 deg C) within 8 hours.

3. Use only Class C epoxies when substrate temperatures are above 60 deg F (16 deg C).

B. Cold-Weather Requirements for Cementitious Materials: Do not apply unless air temperature is between 40 and 90 deg F (5 and 32 deg C) and will remain so for at least 48 hours after completion of Work.

C. Cold-Weather Requirements for Cementitious Materials: Comply with the following procedures:

CONCRETE REHABILITATION SECTION 039300-3

1. When air temperature is below 40 deg F (5 deg C), heat patching material ingredients and existing concrete to produce temperatures between 40 and 90 deg F (5 and 32 deg C).

2. When mean daily air temperature is between 25 and 40 deg F (minus 4 and plus 5 deg C), cover completed Work with weather-resistant insulating blankets for 48 hours after repair.

3. When mean daily air temperature is below 25 deg F (minus 4 deg C), provide enclosure and heat to maintain temperatures above 32 deg F (0 deg C) within the enclosure for 48 hours after repair.

D. Hot-Weather Requirements for Cementitious Materials: Protect repair work when temperature and humidity conditions produce excessive evaporation of water from patching materials. Provide artificial shade and wind breaks, and use cooled materials as required. Do not apply to substrates with temperatures of 90 deg F (32 deg C) and above.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to, the following:

B. Products: Subject to compliance with requirements, provide one of the following:

1. Epoxy-Modified, Cementitious Bonding and Anticorrosion Agent:

a. Euclid Chemical Company; CORR-BOND.

b. Kaufman Products, Inc; SurePoxy HMEPL.

c. Sika Corporation; Armatec 110 EpoCem.

d. Sonneborn, Div. of ChemRex, Inc.; Sonoprep.

e. Sto Corp., Concrete Restoration Division; Sto Bonding and Anti-Corrosion

Agent.

2. Epoxy Bonding Agent:

a. Dayton Superior Corporation; [Resi-Bond (J-58)] [Sure-Anchor Epoxy (J- 50),] [or] [Sure-Inject (J-56)].

b. Euclid Chemical Company; [EUCO #352 EPOXY SYSTEM,] [EUCO #452 EPOXY SYSTEM,] [EUCO #620 EPOXY SYSTEM,] [or]

[EUCOPOXY LPL MV].

c. Fosroc International Limited; [Nitobond 881-11,] [Nitobond 881-12,] [Nitobond 881-13,] [Nitobond 881-22C,] [Nitobond 881-41,] [Nitobond 881-42,] [Nitobond 881-43,] [or] [Nitobond Epoxy Gel 400C].

d. Kaufman Products, Inc.; SurePoxy HM EPL.

e. Master Builders, Inc.; CONCRESIVE LIQUID LPL.

f. Sika Corporation; [Sikadur 31 Hi-Mod Gel,] [Sikadur 32 Hi-Mod,]

[Sikadur 32 Hi-Mod LPL,] [Sikadur 35 Hi-Mod LV,] [or] [Sikadur 35 Hi- Mod LV LPL].

CONCRETE REHABILITATION SECTION 039300-4

g. Sonneborn, Div. of ChemRex, Inc.; [Epogel] [or] [Epogrip].

h. Sto Corp., Concrete Restoration Division; Sto Epoxy Adhesive.

i. Unitex; [Pro-Poxy 204] [or] [Slow Set Bonding Agent].

3. Latex Bonding Agent, Type II:

a. Dayton Superior Corporation; Day-Chem Ad Bond (J-40).

b. Euclid Chemical Company; FLEX-CON.

c. Kaufman Products, Inc.; SureBond.

d. Sonneborn, Div. of ChemRex, Inc.; Acrylic Additive.

4. Polymer-Modified, Cementitious Patching Mortar:

a. Dayton Superior Corporation; [HD-50] [or] [Thin Resurfacer].

b. Euclid Chemical Company; [CONCRETE COAT,] [THINCOAT,] [or]

[VERTICOAT].

c. Fosroc International Limited; [Polyset] [or] [Renderoc HB2].

d. Harris Specialty Chemicals, Inc.; Structurite.

e. Kaufman Products, Inc.; [Patchwell,] [Patchwell Kit,] [Patchwell Kit D,]

[or] [Patchwell Kit HB].

f. Master Builders, Inc.; [EMACO R320 CI] [or] [EMACO R350 CI].

g. Sika Corporation; [SikaTop 121 Plus,] [SikaTop 122 Plus,] [SikaTop 123

Plus,] [or] [SikaTop 126 Plus].

h. Sonneborn, Div. of ChemRex, Inc.; [Deep-Pour Mortar] [or]

[Sonopatch 100].

i. Sto Corp., Concrete Restoration Division; [Sto Flowable Mortar,] [Sto

Overhead Mortar,] [Sto Thin-Coat Mortar,] [or] [Sto Trowel-Grade Mortar].

5. Polymer-Modified, Silica-Fume-Enhanced, Cementitious Patching Mortar:

a. Euclid Chemical Company; [EUCO SR-VO] [or] [Verticoat Supreme].

b. Fosroc International Limited; Renderoc SD40.

c. Master Builders, Inc.; EMACO S88 CI.

d. Sika Corporation; Sika MonoTop 615.

e. Sonneborn, Div. of ChemRex, Inc.; [Gel Patch,] [Patch,]

[Sonopatch 200,] [or] [Sonopatch 300].

f. Sto Corp., Concrete Restoration Division; Sto High-Strength Overhead

Mortar.

6. Epoxy Crack Injection Adhesive:

a. Dayton Superior Corporation; Sure-Inject (J-56).

b. Euclid Chemical Company; [EUCO #352 LV,] [EUCO #452 LV,]

[EUCO #620 LV,] [or] [EUCOPOXY INJECTION RESIN].

c. Fosroc International Limited; [Nitobond 881-11,] [Nitobond 881-41,]

[Nitobond ULV 140,] [or] [Nitobond ULV 300].

d. Kaufman Products, Inc.; [SurePoxy HMLV,] [SurePoxy HMLV-Class B,]

[or] [SurePoxy HM-SLV].

e. Master Builders, Inc.; [CONCRESIVE STANDARD LVI] [or] [SCB

CONCRESIVE 1380].

CONCRETE REHABILITATION SECTION 039300-5

f. Sika Corporation; [Sikadur 35 Hi-Mod LV,] [Sikadur 35 Hi-Mod LV LPL,] [Sikadur 52,] [or] [Sikadur Injection Gel].

g. Sonneborn, Div. of ChemRex, Inc.; [EpoFil] [or] [EpoFil SLV].

h. Sto Corp., Concrete Restoration Division; Sto Epoxy Binder.

i. Unitex; [Pro-Poxy 50 SuperLV] [or] [Pro-Poxy 100 LV].

7. Corrosion-Inhibiting Treatments:

a. CORTEC Corp.; [MCI 2005] [or] [MCI 2020].

b. Sika Corporation; Sika FerroGard 903.

c. Sonneborn, Div. of ChemRex, Inc.; Corrosion Inhibitor.

8. Waterproofing Treatment:

a. Dayton Superior; Weather Worker 100% J29A

2.2 BONDING AGENTS

A. Epoxy-Modified, Cementitious Bonding and Anticorrosion Agent: Product that consists of water-insensitive epoxy adhesive, portland cement, and water-based solution of corrosion-inhibiting chemicals that forms a protective film on steel reinforcement.

B. Epoxy Bonding Agent: ASTM C 881, Type II.

1. Thin Film Open Time: Not less than six hours.

C. Latex Bonding Agent: ASTM C 1059, Type II

D. Mortar Scrub-Coat: 1 part portland cement complying with ASTM C 150, Type I, II, or III and 1 part fine aggregate complying with ASTM C 144, except 100 percent passing a No. 16 (1.18-mm) sieve.

2.3 PATCHING MORTAR

A. Patching Mortar: Unless otherwise indicated, use one of the following:

1. Job-Mixed Patching Mortar: 1 part portland cement complying with ASTM C 150, Type I, II, or III and 2-1/2 parts fine aggregate complying with ASTM C 144, except 100 percent passing a No. 16 (1.18-mm) sieve.

2. Cementitious Patching Mortar: Packaged, dry mix complying with ASTM C 928.

3. Polymer-Modified, Cementitious Patching Mortar: Packaged, dry mix complying with ASTM C 928, that contains a non-redispersible latex additive as either a dry powder or a separate liquid that is added during mixing.

4. Polymer-Modified, Silica-Fume-Enhanced, Cementitious Patching Mortar:

Packaged, dry mix complying with ASTM C 928, that contains silica fume complying with ASTM C 1240 and a non-redispersible latex additive as either a dry powder or a separate liquid that is added during mixing.

5. Epoxy-Modified, Cementitious Patching Mortar: Mixture of water-insensitive epoxy adhesive, portland cement, and graded aggregates.

CONCRETE REHABILITATION SECTION 039300-6

B. Overhead Patching Mortar: For overhead repairs, use patching mortar recommended by manufacturer for overhead use and as specified above.

C. Coarse Aggregate for Adding to Patching Mortar: Washed aggregate complying with ASTM C 33, Size No. 8, Class 5S. Add only as permitted by patching mortar manufacturer.

2.4 MISCELLANEOUS MATERIALS

A. Epoxy Crack Injection Adhesive: ASTM C 881, Type I, Grade 1.

B. Epoxy Capping Adhesive: Product manufactured for use with crack injection adhesive by same manufacturer.

C. Corrosion-Inhibiting Treatment Materials: Water-based solution of alkaline corrosion-inhibiting chemicals that penetrates concrete by diffusion and forms a protective film on steel reinforcement.

D. Bolts: Steel bolts complying with ASTM A 307, Grade A (ASTM F 568, Property Class 4.6); with ASTM A 563 (ASTM A 563M) hex nuts and flat washers; hot-dip galvanized to comply with ASTM A 153/A 153M, Class C.

E. Post-installed Anchors: Anchors as described below, with capability to sustain, without failure, a load equal to four times the load imposed, as determined by testing per ASTM E 488, conducted by a qualified independent testing agency.

1. Type: Expansion anchors.

2. Corrosion Protection: Stainless-steel components complying with ASTM F 593 and ASTM F 594, Alloy Group 1 or 2 (ASTM F 738M and ASTM F 836M, Alloy Group 1 or 4) for bolts and nuts; ASTM A 666 or ASTM A 276, Type 304 or 316, for anchors.

2.5 MIXES

A. Mix products in clean containers according to manufacturer's written instructions.

1. Add clean silica sand and coarse aggregates to products only as recommended by manufacturer.

2. Do not add water, thinners, or additives unless recommended by manufacturer.

3. When practical, use manufacturer's premeasured packages to ensure that materials are mixed in proper proportions. When premeasured packages are not used, measure ingredients using graduated measuring containers; do not estimate quantities or use shovel or trowel as unit of measure.

4. Do not mix more materials than can be used within recommended open time.

Discard materials that have begun to set.

B. Mortar Scrub-Coat: Mix with enough water to provide a consistency of thick cream.

C. Dry-Pack Mortar: Mix with just enough liquid to form a damp cohesive mixture that can be squeezed by hand into a ball but is not plastic.

CONCRETE REHABILITATION SECTION 039300-7

3.1 PREPARATION

A. Protect people, motor vehicles, equipment, surrounding construction, Project site, plants, and surrounding buildings from injury resulting from concrete rehabilitation work.

1. Protect adjacent equipment and surfaces by covering them with heavy polyethylene film and waterproof masking tape or a liquid strippable masking agent. If practical, remove items, store, and reinstall after potentially damaging operations are complete.

2. Neutralize and collect alkaline and acid wastes for disposal off Owner's property.

3. Dispose of runoff from wet operations by legal means and in a manner that prevents soil erosion, undermining of paving and foundations, damage to landscaping, and water penetration into building interiors.

B. Shoring: Install temporary supports before beginning concrete removal.

C. Concrete Removal: Saw-cut perimeter of areas indicated for removal to a depth of at least 1/2 inch (12.7 mm). Make cuts perpendicular to concrete surfaces and no deeper than cover on reinforcing. Remove loose and deteriorated concrete by breaking up and dislodging from reinforcing.

1. Remove concrete between cuts to a depth of at least 1/2 inch (12.7 mm).

2. Where half or more of the perimeter of reinforcing bar is exposed, bond between reinforcing bar and surrounding concrete is broken, or reinforcing bar is corroded, remove concrete from entire perimeter of bar to provide at least a 3/4-inch (19-

mm) clearance.

3. Test areas where concrete has been removed by tapping with hammer, and remove additional concrete until unsound concrete is completely removed.

4. Provide fractured aggregate surfaces with a profile of at least 1/8 inch (3 mm) that are approximately perpendicular or parallel to original concrete surfaces. At columns and walls, make top and bottom surfaces level.

5. Thoroughly clean removal areas of loose concrete, dust, and debris.

D. Reinforcing Bar Preparation: Remove loose and flaking rust from reinforcing bars by wire brushing until only tightly bonded light rust remains.

E. Surface Preparation for Corrosion-Inhibiting Treatment: Clean concrete by low-pressure water cleaning, detergent scrubbing, or sand blasting to remove dirt, oils, films, and other materials detrimental to treatment application. Allow surface to dry before applying corrosion-inhibiting treatment.

F. Surface Preparation for Sealers: Clean concrete by low-pressure water cleaning, or detergent scrubbing to remove dirt, oils, films, and other materials detrimental to sealer application.

CONCRETE REHABILITATION SECTION 039300-8

G. Surface Preparation for Sealers: Acid etch surface of concrete to produce a surface profile matching CSP 1 per ICRI 03732. Prepare surface for acid etching by detergent scrubbing to remove oils and films that may prevent penetration of acid.

1. Remove excess acid solution, reaction products, and debris by squeegeeing or vacuuming.

2. Scrub surface with an alkaline detergent, rinse, and squeegee or vacuum.

3. Check acidity of surface with pH test paper and continue rinsing until pH is acceptable.

4. When pH is acceptable and surface is clean, vacuum dry.

3.2 APPLICATION

A. Epoxy-Modified, Cementitious Bonding and Anticorrosion Agent: Apply to reinforcing bars, steel anchors, and concrete by stiff brush or hopper spray according to manufacturer's written instructions. Apply to reinforcing bars and steel anchors in two coats, allowing first coat to dry two to three hours before applying second coat. Allow to dry before placing patching mortar or concrete.

B. Epoxy Bonding Agent: Apply to reinforcing bars and concrete by brush, roller, or spray according to manufacturer's written instructions, leaving no pinholes or other uncoated areas. Apply to reinforcing bars in at least two coats, allowing first coat to dry before applying second coat. Apply patching mortar or concrete while epoxy is still tacky. If bonding agent dries, recoat before placing patching mortar or concrete.

C. Latex Bonding Agent, Type II: Mix with portland cement and scrub into concrete surface according to manufacturer's written instructions. If bonding agent dries, recoat before placing patching mortar or concrete.

D. Mortar Scrub-Coat: Dampen repair area and surrounding concrete 6 inches (150 mm) beyond repair area. Remove standing water and apply scrub-coat with a brush, scrubbing it into surface and thoroughly coating repair area. If scrub-coat dries, recoat before applying patching mortar or concrete.

E. Patching Mortar: Unless otherwise recommended by manufacturer, apply as follows:

1. Wet substrate thoroughly and then remove standing water. Scrub a slurry of neat patching mortar into substrate, filling pores and voids.

2. Place patching mortar by troweling toward edges of patch to force intimate contact with edge surfaces. For large patches, fill edges first and then work toward center, always troweling toward edges of patch. At fully exposed reinforcing bars, force patching mortar to fill space behind bars by compacting with trowel from sides of bars.

3. For vertical patching, place material in lifts of not more than 1 inch (25 mm) nor less than 1/4 inch (6 mm). Do not feather edge.

4. After each lift is placed, consolidate material and screed surface.

5. Where multiple lifts are used, score surface of lifts to provide a rough surface for application of subsequent lifts. Allow each lift to reach final set before placing subsequent lifts.

CONCRETE REHABILITATION SECTION 039300-9

6. Allow surfaces of lifts that are to remain exposed to become firm and then finish to a smooth surface with a wood float

7. Wet-cure cementitious patching materials, including polymer-modified, cementitious patching materials, for not less than seven days by water-fog spray or water-saturated absorptive cover.

F. Dry-Pack Mortar: Use for deep cavities. Place according to manufacturer's written instructions and as follows:

1. Provide forms where necessary to confine patch to required shape.

2. Wet substrate and forms thoroughly and then remove standing water.

3. Place dry-pack mortar into cavity by hand and compact into place with a hardwood drive stick and mallet or hammer. Do not place more material at a time than can be properly compacted. Continue placing and compacting until patch is approximately level with surrounding surface.

4. After cavity is filled and patch is compacted, trowel surface to match profile and finish of surrounding concrete. A thin coat of patching mortar may be troweled into the surface of patch to help obtain required finish.

5. Wet-cure patch for not less than seven days by water-fog spray or water-saturated absorptive cover.

G. Epoxy Crack Injection: Comply with manufacturer's written instructions and the following:

1. Clean areas to receive capping adhesive of oil, dirt, and other substances that would interfere with bond, and clean cracks with oil-free compressed air or low-pressure water to remove loose particles.

2. Place injection ports as recommended by epoxy manufacturer, spacing no farther apart than thickness of member being injected. Seal injection ports in place with capping adhesive.

3. Seal cracks at exposed surfaces with a ribbon of capping adhesive at least 1/4 inch (6 mm) thick by 1 inch (25 mm) wider than crack.

4. Inject cracks wider than 0.003 inch (0.075 mm) to a depth of 8 inches (200 mm) or to a width of less than 0.003 inch (0.075 mm), whichever is less.

5. Inject epoxy adhesive, beginning at widest part of crack and working toward narrower parts. Inject adhesive into ports to refusal, capping adjacent ports when they extrude epoxy. Cap injected ports and inject through adjacent ports until crack is filled.

6. After epoxy adhesive has set, remove injection ports and grind surfaces smooth.

H. Corrosion-Inhibiting Treatment: Apply by brush, roller, or airless spray in two coats at manufacturer's recommended application rate. Remove film of excess treatment by high-pressure washing before patching treated concrete or applying a sealer

1. Apply to the following: Main Dam flush-cut steel anchors; South Fork Weir exposed rebar in recorder housing foundation

3.3 FIELD QUALITY CONTROL

CONCRETE REHABILITATION SECTION 039300-10

A. Testing Agency: Engage a qualified testing agency to sample materials and perform tests specified as follows:

1. Patching Mortar, Packaged Mixes: One randomly selected samples tested according to ASTM C 928.

2. Patching Mortar, Field Mixed: One randomly selected samples tested for compressive strength according to ASTM C 109/C 109M.

END OF SECTION 039300

STONE RESTORATION AND CLEANING SECTION 04902-1

SIERRA ANCHA WEIR REPAIRS

SECTION 049020 - STONE RESTORATION AND CLEANING

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Repairing stonework, including replacing damaged units.

2. Repointing mortar joints.

3. Removing plant growth.

4. Cleaning exposed stone surfaces.

1.2 DEFINITIONS

A. Low-Pressure Spray: 100 to 400 psi (690 to 2750 kPa); 4 to 6 gpm (0.25 to 0.4 L/s).