Part_H.pdf

BID DOCUMENTS

For the Maintenance and Rehabilitation of

Gary Sain Memorial Bridge Oversight Bridge

Rosen Centre Skywalk Bridge

For

Orange County Convention Center

May 2022

Avcon, Inc.

5555 East Michigan Street, Suite 200 Orlando, Florida 32822

Maintenance and Rehabilitation

- 2 -

TABLE OF CONTENTS

TABLE OF CONTENTS

LOCATION MAP

SCOPE OF WORK

BID RESPONSE FORM

GENERAL CONDITIONS AND TECHNICAL PROVISIONS

BRIDGE REPAIR SKETCHES

BRIDGE INVENTORY AND APPRAISAL REPORTS

A. GARY SAIN MEMORIAL BRIDGE

B. OVERSIGHT BRIDGE

C. ROSEN CENTRE SKYWALK BRIDGE

INSURANCE REQUIREMENTS

- 3 -

LOCATION MAP

- 4 -

Figure 1: Orange County Convention Center Pedestrian Bridge Locations

- 5 -

SCOPE OF WORK

- 6 -

SCOPE

The proposed project includes rehabilitation and maintenance repairs for three (3) pedestrian bridges at the Orange County Convention Center:

1. Gary Sain Memorial Pedestrian Bridge from the Rosen Plaza Hotel to the West Concourse.

2. Oversight Pedestrian Bridge from the West Concourse to the Hyatt Regency Orlando and over to the South Concourse.

3. Rosen Center Skywalk Pedestrian Bridge from the Rosen Center Hotel to the West Concourse.

The repairs include:

Concrete crack and spall repairs to the deck slabs and access stairs.

Removing foreign material such as dirt, debris, vegetation, and packed rust from bearing members.

Cleaning of rusted steel elements by wire brushing and/or blast cleaning.

Painting of repaired steel areas with an epoxy based primer and a paint system to match the existing paint.

Concrete crack and spall repairs to the deck slabs and access stairs.

Corrosion repairs to steel members including bridge truss system, floor beams, handrails, fence framing, etc. (Majority of corrosion repairs include wire brushing or blast cleaning).

Some steel corrosion requires partial replacement of member.

Drilling a drain hole in one steel horizontal bottom chord.

Replacement of expansion joint material at all locations.

Replacement of damaged steel vertical infill handrails.

Reinstallation of one broken/dislocated lightning rod at one location.

Uncovering top of column footings, coating buried portion of column and recompacting soil. Only replace sod in areas disturbed by construction activities.

- 7 -

Rosen Centre Skywalk

Concrete crack repairs to the deck slabs.

Removing foreign material such as dirt, debris, vegetation, and packed rust from bearing members.

Cleaning of rusted steel elements by wire brushing and/or blast cleaning.

Repairing holes is steel elements.

Refer to each bridge inventory and appraisal section for location and list of deficiencies.

D-3

Y22-7020 - Bid Item Schedule

Orange County Convention Center Pedestrian Bridge Repairs

D-4

- 11 -

GENERAL CONDITIONS AND

TECHNICAL PROVISIONS

For the Maintenance and Rehabilitation of

For

May 2022

Avcon, Inc.

5555 East Michigan Street, Suite 200 Orlando, Florida 32822

Dominick Fiorentino III, P.E.

P.E. No. 87365

Pedestrian Bridge Maintenance and Rehabilitation

GENERAL CONDITIONS

1. All fees, permits, applications, certificates, and filing fees of all work with local, state, and federal agencies shall be the responsibility of the Contractor.

2. Contractor shall visit the site and inspect the premises, prior to submitting their proposal, to familiarize themselves with the conditions under which work will be performed. No subsequent extras or additions will be allowed on any claim due to lack of knowledge of conditions or circumstances about which the contractor could have investigated.

3. Contractor is advised to perform all photographic surveys and other documentation of adjacent buildings before the start of construction.

4. Limited As-built record drawings for the three pedestrian bridges requiring repairs are available to the contractor to facilitate the work and are not a guarantee of the existing condition of the structures.

5. All work shall be performed in accordance with the rules and regulations of the government agency having jurisdiction and shall conform to all safety and sanitary laws, city, county, state, and/or federal ordinances/codes that apply.

6. Before commencing work, Contractor shall review all plan notes, general conditions, specifications, and verify all governing dimensions on the job and shall examine any adjoining areas upon which his work is in any way dependent. Any variation or discrepancies shall be reported to the owner’s representative three weeks prior to start of fabrication or erection of work in question. Any variations or discrepancies not reported immediately to the Owner or owner’s representative shall become the responsibility of the contractor.

7. The repair concept of this project is based on the colors, textures, and designs of the existing structures. Field verification is necessary to complete the work as required. Contractor shall provide and install finishes or materials satisfactory to the Owner and install the specified finishes or materials upon their arrival and bear the cost associated with the installation.

8. Contractor shall be solely responsible for accuracy of measurements and finish requirements.

Owner will consider no request for materials or installation extras due to measurement or take off errors by the Contractor.

9. The Contractor is to provide all labor and materials to execute all work as indicated in the Contract Documents with the exception of any items or areas marked as “Not in Contract” or

NIC.

10. The exact location and limits of the Contractor’s staging and storage areas shall be established by the contractor with the approval of the Owner’s representative. Prior to beginning of the work, access, hauling, and storage areas shall be jointly inspected and agreed upon by the contractor and owner. Temporary fencing shall be required around contractor’s staging and storage areas to deter any theft, damage, etc. Orange County or the Orange County Convention Center cannot be held liable for any theft or damage to contractor’s materials and/or equipment kept in Contractor’s staging and/or storage areas.

11. Any and all required utilities for the Contractor’s operations shall be subject to the approval of the Owner’s representative before the start of construction.

12. Access along pedestrian bridges shall be provided at all times to the walkways that serve as required exits. The unobstructed width of pedestrian walkways shall not be less than 36 inches (3 feet).

13. The contractor shall at all times keep the premises free of the accumulation of waste materials, trash, or debris as a result of the construction process.

14. Final cleaning prior to final contract closure shall include, but not limited to, cleaning of all surfaces, dusting of all horizontal surfaces, vacuuming of all flooring areas, removal of all stains, spots, spills, etc. on any surface, free from dirt, adhesive, or other foreign materials.

15. Final closeout includes replacement of sod in areas affected by the Contractor’s work and/or equipment to the Owner’s satisfaction.

16. Contractor shall comply with all rules and regulations of the buildings as to hours of availability of elevators, loading docks, etc. for the purpose of delivery and the manner of handling materials, equipment and debris and avoid conflict or interference with normal building operations. Coordination with owner’s representative shall occur two weeks in advance.

17. Contractor is allowed a complete 24-hour window per day for construction related activities subject to event (show) schedules and activities. Overall project and daily work schedules shall be coordinated directly with the Convention Center Operations Manager. Contractor may be required to schedule work on only one bridge structure at a time in order to avoid event (show) activities. Contractor’s work schedules shall be updated and approved weekly. Owner will try to accommodate the construction activities without lengthy delays, but no additional compensation will be allowed for delays caused by event (show) activities that have been scheduled.

18. Contractor shall exercise great care in protecting from damage all existing facilities and structures indicated as “to remain,” all areas indicated as “not in contract,” and all materials delivered to the job site prior to installation. Any damages due to his work or to accidents shall be patched, repaired, or replaced at the discretion of the Owner or owner’s representative and at the Contractor’s costs.

19. Contractor shall submit a list of all subcontractors to the Owner prior to commencing work.

The name of the principal contact, the address, and the phone number of each subconsultant shall be included on the list.

20. All work shall be performed by skilled workers and in accordance with the best practices of the trades involved.

21. All materials shall be new, unused and of the highest quality in every respect unless otherwise noted. All equipment, materials and finishes shall be installed or applied according to the manufacturer’s written recommendations.

22. All work and materials shall be guaranteed by the Contractor in writing against defects in design, workmanship, and materials for a period of one (1) year from the date of approval of final payment. This guarantee shall not limit any specific manufacturer’s warranties that are in excess of one (1) year duration.

23. At the substantial construction complete date, the Contractor shall organize a walk-through with the owner’s representative and engineer of record and prepare a punch list of items to be completed or corrected found during this walk-through. Submit this list to the owner’s representative, Owner, and engineer of record. Failure to include any items on this list does not alter the responsibility of the Contractor to complete the work in accordance with the Contract Documents.

24. Contractor shall be responsible for providing the Owner (in writing) all manufacturer’s manuals, warranties and recommended procedures/schedules for materials and finishes installed.

25. Final payment to the General Contractor shall be approved within forty-five (45) business days upon satisfactory completion of all punch list items and submission of all documents required by this work.

GENERAL CONDITIONS AND TECHNICAL PROVISIONS

INDEX OF PART H – TECHNICAL PROVISIONS

TP SECTION

TP 101 Mobilization TP 102 Maintenance of Traffic TP 370 Replacement of Expansion Joint TP 400 Concrete Rehabilitation TP 460 Steel Rehabilitation

Orange County Convention Center TP-101 1

TP 101

MOBILIZATION

Mobilization shall include all items detailed in Section 101-1 of the “Standard Specifications”, the Special Provisions and on the plans, except as directed by the Engineer.

Basis of Payment

The work and incidental costs covered under Mobilization will be paid for at the contract lump sum price and will be paid in partial payments in accordance with the following:

Percent of Original Contract Allowable Percent of the Lump Sum Amount Earned Price for Mobilization Items*

5 25 10 50 25 75 50 100

*Partial payments as detailed above will be limited to 10% of the original Contract amount for the pay items. Any amount of mobilization in excess of 10% of the pay items will be paid upon completion of all work.

Payment shall be made under:

Pay Item:

Item No.101-1 Mobilization - Lump Sum

Orange County Convention Center TP-102 1

TP 102

MAINTENANCE OF TRAFFIC

All Maintenance of Traffic work shall conform to the requirements of Section 102 of the “Standard Specifications”, Index 102 of the FDOT Standard Plans, the plans, and/or as herein modified, except as directed by the Engineer.

The road shall be kept open to two-way traffic on a paved surface during construction except when full closures are allowed by the plans or by the Engineer. The Contractor shall not be permitted to isolate residences or places of business. Access shall be provided to all residences and all places of business whenever construction interferes with the existing means of access.

The Contractor shall furnish, erect, and maintain all necessary traffic control devices, including flagmen and pilot cars, in accordance with the Manual of Uniform Traffic Control Devices for Streets and Highways, published by the U.S. Department of Transportation, Federal Highway Administration.

The Contractor shall provide and maintain, in a safe condition, the entire project limits including, but not limited to pre-existing conditions, driving lanes, temporary approaches, crossings, and intersections with trails, roads, streets, business parking lots, residences, garages and completed work. The Contractor shall take all necessary precautions for the protection of the work and the safety of the public in accordance with Section 102.

The Contractor shall present his signed and sealed Maintenance of Traffic Plan that is approved by Orange County Traffic Engineering to the Engineer at the preconstruction conference and shall be fully and solely responsible for the adequacy of the Maintenance of Traffic plan regardless of the source.

The plan shall be signed and sealed by the Contractor’s own professional engineer licensed in the State of Florida. Any proposed revisions to the approved Maintenance of Traffic plan are required to be approved by the Engineer.

The Contractor shall be responsible for installation of signs for all business along the project corridor.

Signs should be manufactured and installed in accordance with FDOT Standard Plans. No special compensation will be made to the contractor to defray costs of any of the work or delays for complying with the requirements of installing business signs, but such costs shall be considered as having been included in the price stipulated for the Maintenance of Traffic pay item.

Partial Lane closures are only allowed during weekdays from 9:00 AM to 4:00 PM and between 1:00 AM and 6:00 AM.

Basis of Payment

All material, labor and equipment necessary for the construction and maintenance of the entire project limits included, but not limited to pre-existing conditions, driving lanes, temporary approaches, crossings, intersections with trails, roads, streets, business parking lots, residences, garages, temporary driving lanes, side streets, driveway connections, pedestrian crossings, and completed work, as directed by the Engineer, shall be included in the contract price.

Payment will be made under:

Item No. 102-1 Maintenance of Traffic – per Day

Orange County Convention Center TP-370 1

TP 370

REPLACEMENT OF EXPANSION JOINT

For replacement of concrete expansion joints. Furnish and install joint material at all existing expansion joint locations found along the Oversight Bridge concrete deck. This also includes existing joints between steel members and the concrete deck. Furnish and install a low modulus Type D silicone sealant material meeting the requirements of the FDOT Standard Specifications Section 932.

Install all poured joints per the manufacturer’s installation instructions.

Method of Measurement

The quantity to be paid for will be the actual length, in feet, of expansion joint material completed and accepted.

Basis of Payment

Price and payment will be full compensation for all work and materials necessary for the complete installation. Such price and payment will include, but not limited to, the following specific incidental work:

1. Any work required to remove the existing joint material.

2. Any work required to clean and prepare the deck joint gap.

3. Any concrete spall repairs caused by demolition activities of the existing joint.

4. Any work to replace rejected joints.

5. Any repairs to the galvanizing or paint on existing steel joint components.

6. Any additional work or materials required for non-standardized or special construction or installation techniques.

7. Any removal and re-installation of sidewalk cover plates if necessary.

8. All costs associated with a manufacturer’s installation technician.

9. Furnishing and installing backer rods found to be required at existing joints.

Payment will be made under:

Item No. 370-1 Replacement of Expansion Joint – per Linear Foot.

Orange County Convention Center TP-400 1

TP 400

CONCRETE REHABILITATION

PART 1 – GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Concrete Spall Repair.

2. Exposed Rebar Repair.

3. Epoxy Crack Injection.

4. Corrosion-inhibiting treatment.

5. Polymer Sealers for Access Stairs.

6. Penetrant Sealers for Cracks.

1.2 UNIT PRICES

A. Unit prices include the cost of preparing existing construction to receive the work indicated.

B. Concrete Removal and Replacement or Patching: Work will be paid for by the cubic foot 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.

1. Reinforcing bar replacement, if necessary, will be paid for separately by the pound 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 of crack injected.

D. Crack Sealing: Work will be paid for by the linear foot of crack sealed.

E. Polymer Overlays: Work will be paid for by the square foot of exposed overlay surface.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated. Include material descriptions, chemical composition, physical properties, test data, and mixing, preparation, and application instructions.

B. Formwork and Shoring Drawings: Prepared by or under the supervision of a qualified professional engineer detailing formwork and temporary shoring and supports. Include schedule and sequence for erection and removal relative to removal of deteriorated concrete and reinforcement and subsequent repair and reinforcement.

C. Qualification Data: For installers, manufacturers, and testing agencies.

1. For products required to be installed by workers approved by product manufacturers, include letters of acceptance by product manufacturers certifying that installers are approved to apply their products.

Orange County Convention Center TP-400 2

D. Material Certificates: For each type of product indicated, signed by manufacturers.

E. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for bonding agents, patching mortars, epoxy adhesives, and composite structural reinforcement.

F. Rehabilitation Program: For each phase of rehabilitation process, including protection of surrounding materials and Project site during operations. Describe in detail materials, methods, equipment, and sequence of operations to be used for each phase of the Work.

1. If alternative materials and methods to those indicated are proposed for any phase of rehabilitation work, submit substitution request complying with Division 1 Section "Product Requirements" and provide a written description of proposed materials and methods, including evidence of successful use on other comparable projects, and a testing program to demonstrate their effectiveness for this Project.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: Installer that employs workers trained and approved by manufacturer to apply corrosion-inhibiting treatments, concrete patching and rebuilding materials, epoxy crack injection materials, polymer overlays, polymer sealers, and composite structural reinforcement.

B. Manufacturer Qualifications: Manufacturer that employs factory-trained representatives who are available for consultation and Project-site inspection.

1.5 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.

1.6 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 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 within 8 hours.

3. Use only Class C epoxies when substrate temperatures are above and are expected to stay above 60 deg F for 8 hours.

Orange County Convention Center TP-400 3

B. Cold-Weather Requirements for Cementitious Materials: Do not apply unless air temperature is above 40 deg F 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:

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

2. When mean daily air temperature is between 25 and 40 deg F, cover completed Work with weather-resistant insulating blankets for 48 hours after repair or provide enclosure and heat to maintain temperatures above 32 deg F within the enclosure for 48 hours after repair.

3. When mean daily air temperature is below 25 deg F, provide enclosure and heat to maintain temperatures above 32 deg F 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 and above.

E. Environmental Limitations for High-Molecular-Weight Methacrylate Sealers: Do not apply when concrete surface temperature is below 55 deg F or above 90 deg F. Apply only to dry substrates, substrates that have been dry for at least 72 hours.

PART 2 – PRODUCTS

2.1 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.

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

a. Euclid Chemical Company (The); Corr-Bond.

b. Kaufman Products, Inc; Surepoxy HM EPL.

c. Sika Corporation; Armatec 110 EpoCem.

d. Sonneborn, Div. of ChemRex; Sonoprep.

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

f. Tamms Industries, Inc.; Duralprep A.C.

B. Epoxy Bonding Agent: ASTM C 881/C 881M, Type V.

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

a. Anti-Hydro International, Inc.; Poly-Epoxy Bonding #100.

b. ChemCo Systems; CCS Bonder Liquid, SWL.

Orange County Convention Center TP-400 4

c. Dayton Superior Corporation: Resi-Bond (J-58), Sure-Anchor Epoxy (J-50), or Sure-Inject (J-56).

d. Euclid Chemical Company (The); Euco #352 Epoxy System, Euco #452 Epoxy System, or Euco #620 Epoxy System.

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

f. MBT Protection and Repair, Div. of ChemRex; Concresive Liquid LPL.

g. Meadows, W. R., Inc.; Sealtight Rezi-Weld 1000, Sealtight Rezi-Weld Gel Paste, Sealtight Rezi-Weld Gel Paste State, or Sealtight Rezi-Weld LV.

h. 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.

i. Sonneborn, Div. of ChemRex; Epogel or Epogrip.

j. Tamms Industries, Inc.; Duralbond.

k. ThoRoc, Div. of ChemRex; Epoxy Adhesive 24LPL.

l. Unitex; Pro-Poxy 204 or Slow Set Bonding Agent.

m. US MIX Products Company; US Spec Maxi - Bond 2500 or US Spec Slow Bond 6500.

C. Latex Bonding Agent: ASTM C 1059, Type I and II at exterior locations and where indicated, Type I at other locations.

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

a. Latex Bonding Agent, Type I:

1) Euclid Chemical Company (The); Euco Weld.

2) Kaufman Products, Inc.; Sureweld.

3) Meadows, W. R. Inc.; Intralok.

4) Sika Corporation; Sikalatex.

5) US MIX Products Company; US Spec Bondcoat.

b. Latex Bonding Agent, Type II:

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

2) Euclid Chemical Company (The); Flex-Con.

3) Kaufman Products, Inc.; Surebond.

4) Meadows, W. R. Inc.; Sealtight Acry-Lok.

5) Sonneborn, Div. of ChemRex; Acrylic Additive.

6) US MIX Products Company; US Spec Acrylcoat.

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 sieve.

Orange County Convention Center TP-400 5

2.2 PATCHING MORTAR

A. Patching Mortar, General:

1. Overhead Patching Mortar: For overhead repairs, use patching mortar recommended by manufacturer for overhead use and as specified in this Article.

2. 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.

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

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

a. Cementitious Patching Mortar:

1) Kaufman Products, Inc.; Hicap.

2) MBT Protection and Repair, Div. of ChemRex; Emaco S66 CI Emaco S77 CI or Emaco S88 CI.

3) Sika Corporation; Sikarepair 223 or Sikarepair SHB.

4) Sonneborn, Div. of ChemRex; Deep Pour Mortar.

5) Sto Corp., Concrete Restoration Division; Sto Full-Depth Repair Mortar.

6) ThoRoc, Div. of ChemRex; LA Repair Mortar.

b. Cementitious Patching Mortar, Rapid Setting:

1) CGM, Incorporated; Pro Patching Cement.

2) Dayton Superior Corporation; Day-Chem Perma-Patch, Re-Crete 5 Minute, or Re-Crete 20 Minute.

3) Euclid Chemical Company (The); Euco-Speed.

4) Fox Industries, Inc.; FX-928 Rapid Hardening Mortar.

5) Kaufman Products, Inc.; Duracrete.

6) Meadows, W. R. Inc.; Sealtight Meadow-Patch 5, Sealtight Meadow- Patch 20, or Sealtight Futura-15.

7) Sika Corporation; Sikaset Roadway Patch.

8) Sonneborn, Div. of ChemRex; Road Patch.

9) Sto Corp., Concrete Restoration Division; Sto Rapid Repair Mortar.

10) Tamms Industries, Inc.; Speed Crete 2028.

11) ThoRoc, Div. of ChemRex; 10-60 Rapid Mortar or 10-61 Rapid Mortar.

12) Unitex; Patch Set 928.

13) US MIX Products Company; US Spec Transpatch.

14) Watson Bowman Acme Corp., Degussa AG; Wabo Renew 100.

Orange County Convention Center TP-400 6

C. 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.

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

a. AQUAFIN, Inc.; MORTAR-40.

b. CGM, Incorporated; Pro Trowel Mortar, Pro Gel Mortar, Pro Flowable Mortar, Pro N.B.P.

c. Dayton Superior Corporation; HD-50, or Thin Resurfacer.

d. Euclid Chemical Company (The); Concrete Coat, Thin Coat, or Verticoat.

e. Fox Industries, Inc.; FX-243 or FX-273 Trowel Grade Polymer Repair Mortar.

f. Kaufman Products, Inc.; Patchwell, Patchwell Kit, Patchwell Kit D, or Patchwell Kit HB.

g. MBT Protection and Repair, Div. of ChemRex; Emaco R320 CI or Emaco R350 CI.

h. Meadows, W. R., Inc.; Sealtight Meadow-Patch T1 or Sealtight Meadow-Crete

FNP.

i. Sika Corporation; SikaTop 121 Plus, SikaTop 122 Plus, SikaTop 123 Plus, or SikaTop 126 Plus.

j. Sonneborn, Div. of ChemRex; Screed, Sonopatch 100, Sonopatch 200, Sonopatch 300.

k. Sto Corp., Concrete Restoration Division; Sto Flowable Mortar, Sto Overhead Mortar, Sto Thin-Coat Mortar, or Sto Trowel-Grade Mortar.

l. Tamms Industries, Inc.; Duraltop Fast Set or Speed Crete PM.

m. ThorRoc, Div. of ChemRex, Inc.; HB2 Repair Mortar or Polyset.

n. US MIX Products Company; US Spec Polypatch FR or US Spec Thinpatch.

D. 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.

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

a. Euclid Chemical Company (The); Verticoat Supreme.

b. Fox Industries, Inc.; FX-261 Polymer Repair Mortar or FX-286.

c. MBT Protection and Repair, Div. of ChemRex; Emaco S88 CI.

d. Meadows, W. R., Inc.; Sealtight Meadow-Crete H2 or Sealtight Meadow-Crete-

GPS.

e. Sika Corporation; Sika Monotop 615.

f. Sonneborn, Div. of ChemRex; Gel Patch, Sonopatch 200 or Sonopatch 300.

Orange County Convention Center TP-400 7

g. US Mix Products Company; US Spec V/O Patch.

2.3 CONCRETE

A. All concrete shall meet the FDOT Standard Specification for Road and Bridge Construction Section 346 for moderately aggressive environments. All concrete construction not covered under a separate specific technical provision shall be constructed in accordance with this technical provision.

2.4 MISCELLANEOUS MATERIALS

A. Epoxy Crack Injection Adhesive: ASTM C 881/C 881M, Type IV.

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

a. ChemCo Systems; CCS Grout, Standard, Standard - High Ambient Temperature, or Low Viscosity.

b. Dayton Superior Corporation: Resi-Bond (J-58), Sure-Anchor Epoxy (J-50), or Sure-Inject (J-56).

c. Euclid Chemical Company (The); Euco #352 Epoxy System, Euco #452 Epoxy System, Euco #620 Epoxy System, Euco #452 LV, Euco #620 LV, or Eucopoxy Injection Resin.

d. Kaufman Products, Inc.; Surepoxy HMLV, Surepoxy HMLV-Class B, or Surepoxy HM-SLV.

e. MBT Protection and Repair, Div. of ChemRex; Concresive Standard LVI, or SCB Concresive 1380.

f. Meadows, W. R., Inc.; Sealtight Rezi-Weld LV.

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

h. Sonneborn, Div. of ChemRex; Epofil or Epofil SLV.

i. Tamms Industries, Inc.; Duralcrete LV.

j. Thermal-Chem; Crack Injection, Product 2, 205, or 212.

k. ThorRoc, Div. of ChemRex, Inc.; LV300 Injection Resin or ULV140 Injection Resin.

l. Unitex; Pro-Poxy 50 SuperLV, Pro-Poxy 100 LV, or Slow Set Injection Resin.

m. US MIX Products Company; US Spec Maxi - Bond 500LV.

B. 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.

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

Orange County Convention Center TP-400 8

a. Cortec Corporation; MCI 2005 or MCI 2020.

b. Degussa Corporation; Protectosil CIT.

c. Fox industries, Inc.; FX-361 Migratory Corrosion Inhibitor.

d. Sika Corporation; Sika Ferrogard 903.

e. Sonneborn, Div. of ChemRex; Corrosion Inhibitor.

D. Polymer Sealer for Access Stair Steps: Low-viscosity epoxy or high-molecular-weight methacrylate penetrating sealer recommended by manufacturer for application to exterior concrete traffic surfaces.

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

a. Epoxy Sealers:

1) ChemCo Systems; CCS Coating, Epoxy Healer Sealer.

2) Euclid Chemical Company (The); Euco #512 Epoxy Sealer.

3) Fox Industries, Inc.; FX-452 Epoxy Penetrating Sealer.

4) Kaufman Products, Inc.; SurePoxy Penetrating Sealer.

5) MBT Protection and Repair, Div. of ChemRex; Masterseal GP.

6) Thermal-Chem; Hairline Crack Sealer, Product 207.

7) Unitex; Pro-Seal HS.

8) US MIX Products Company; US Spec Eposeal LVS.

b. High-Molecular-Weight Methacrylate Sealers:

1) Meadows, W. R. Inc.; Sealtight Vocomp-25.

2) Sika Corporation; Sikapronto 19.

3) Transpo Industries, Inc.; Sealate T70.

E. Silane Sealers for Crack Sealing: Seal concrete surfaces and cracks in concrete using materials, surface preparation, and application of penetrant sealers as specified in FDOT Standard Specifications for Road and Bridge Construction Section 413 latest edition.

1. Products: Use products meeting the FDOT standard Specification Section 413-2 Penetrant Sealers.

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

Orange County Convention Center TP-400 9 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 consistency of thick cream.

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

D. Grout for Use with Preplaced Aggregate: Proportion according to ASTM C 938. Add grout fluidifier to mixing water followed by cementitious materials and then fine aggregate.

PART 3 – EXECUTION

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. Erect and maintain temporary protective covers over pedestrian walkways and at points of entrance and exit for people and vehicles unless such areas are made inaccessible during the course of concrete rehabilitation work. Construct covers of tightly fitted, 3/4-inch exterior-grade plywood supported at 16 inches o.c. and covered with asphalt roll roofing.

2. 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.

3. Neutralize and collect alkaline and acid wastes according to requirements of authorities having jurisdiction and dispose of by legal means off Owner's property.

4. 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.

5. Collect runoff from wet operations and dispose of by legal means off Owner's property.

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

C. Concrete Spall and Exposed Rebar Repairs:

1. Saw-cut perimeter of area for removal to a depth of at least 1/2 inch. Make cuts perpendicular to concrete surfaces and no deeper than cover on reinforcement.

2. Remove deteriorated and delaminated concrete by breaking up and dislodging from reinforcement.

3. Remove additional concrete, if necessary, to provide a depth of removal of at least 1/2 inch over entire removal area.

4. 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, Orange County Convention Center TP-400 10 remove concrete from entire perimeter of bar and to provide at least a 3/4-inch clearance around bar.

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

6. Concrete patch shall be square or rectangular in shape.

7. Match original concrete surfaces. At columns and walls, make top and bottom surfaces level, unless otherwise directed.

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

D. Reinforcing Bar Preparation: Remove loose and flaking rust from reinforcing bars by high-pressure water cleaning, abrasive blast cleaning, needle scaling, or wire brushing until only tightly bonded light rust remains.

1. Where section loss of reinforcing bar is more than 25 percent, or 20 percent in 2 or more adjacent bars, cut bars and remove and replace as directed by the Engineer. Remove additional concrete as necessary to provide at least 3/4-inch clearance at existing and replacement bars. Splice replacement bars to existing bars according to ACI 318, by lapping, welding, or using mechanical couplings.

2. Apply Corrosion-inhibiting treatment to all existing exposed clean reinforcing bars.

E. Preparation of Floor Joints for Repair: Saw-cut joints full width to edges and depth of spalls, but not less than 1 inch deep. Clean out debris and loose concrete; vacuum or blow clear with compressed air.

F. Surface Preparation for Penetrant Sealers: 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 treatment.

G. Ground Column Repairs: At each ground level column, expose the column connection by removing the soil down to the top of foundation. Mechanically clean exposed column surface to bare steel below ground level.

3.2 APPLICATION

A. General: Comply with manufacturer's written instructions and recommendations for application of products, including surface preparation.

B. Mortar Scrub-Coat: Dampen repair area and surrounding concrete 6 inches 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.

C. Concrete:

1. Apply epoxy-modified, cementitious bonding and anticorrosion agent, epoxy bonding agent to reinforcement and concrete substrate.

2. Apply latex bonding agent, Type I, latex bonding agent, mortar scrub-coat to concrete substrate.

3. Use vibrators if necessary to consolidate concrete as it is placed.

Orange County Convention Center TP-400 11

4. At unformed surfaces, screed concrete to produce a surface that when finished with patching mortar will match required profile and surrounding concrete.

5. Wet-cure concrete for not less than seven days by leaving forms in place or keeping surfaces continuously wet by water-fog spray or water-saturated absorptive cover.

6. Fill placement cavities with dry-pack mortar and repair voids with patching mortar.

Finish to match surrounding concrete.

D. Epoxy Crack Injection: To be used only in large cracks that can be injected. 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 thick by 1 inch wider than crack.

4. Inject cracks wider than 0.003 inch to a depth of 8 inches or to a width of less than 0.003 inch, 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.

E. 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.

F. Penetrant Sealers: Apply to all existing concrete cracks by brush, roller, or airless spray at manufacturer's recommended application rate.

1. Apply to exterior concrete surfaces that are exposed to view, excluding vehicular traffic-bearing surfaces.

G. Ground Column Repairs: Apply an approved epoxy primer to the cleaned bare steel and allow to dry. Apply a 12.0 Mil Coal Tar epoxy coating to the primed steel per manufacturer’s recommendations. After drying, backfill the hole to match the existing finished grade and compact using hand compaction methods. Sod affected areas to match existing.

3.3 FIELD QUALITY CONTROL

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

1. Patching Mortar, Packaged Mixes: randomly selected samples tested according to

ASTM C 928.

Orange County Convention Center TP-400 12

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

3. Concrete: Testing of composite samples of fresh concrete obtained according to ASTM C 172 shall be performed according to the following requirements:

4. Testing Frequency: Obtain one composite sample for each day's pour of each concrete mixture exceeding 5 cu. yd., but less than 25 cu. yd., plus one set for each additional 50

cu. yd. or fraction thereof.

Basis of Payment

The quantity to be paid for under this Section shall be the actual quantity completed, in place, and accepted, except as noted herein. The price and payment shall constitute full compensation for all work described herein, including all labor, equipment, coatings, and materials necessary to complete the work as indicated in these specifications and on the plans.

Payment shall be made under:

Pay Item:

Item No. 400-1 Concrete Crack Sealing – per Linear Feet Item No. 400-2 Concrete Exposed Rebar Repair – per Square Foot Item No. 400-3 Concrete Spall Repair – per Square Foot Item No. 400-4 Column Footing Repair – per Each

Orange County Convention Center TP-460 1

TP 460

STEEL REHABILITATION

PART 1 – GENERAL

1.1 SUMMARY

A. This Section includes the following:

1. Rehabilitation of the oversight bridge steel deck enclosure angle along outside edge.

(1.6A)

2. Rehabilitation of steel members experiencing section loss. (1.6B)

3. Rehabilitation of corroded steel. (1.6C)

4. Rehabilitation of access stairs. (1.6D)

5. Corrosion repairs of composite metal deck forms. (1.6E)

6. Replacement of Railing Pickets. (1.6F)

7. Replacement of Lightning Rod. (1.6G)

1.2 UNIT PRICES

A. Unit prices include the cost of preparing existing construction to receive the work indicated.

B. Steel member removal and replacement: Work will be paid for by the actual square foot of the steel member size replaced.

C. Steel infill rails will be paid for by linear length of the infill replaced in kind.

1.3 MATERIALS

A. Structural Steel shall conform to the following ASTM Specification, unless noted otherwise.

1. All wide flange shapes or WT shapes: A992M Gr. 50

2. All Angles, Channels, Stiffener Plates: A36 (Fy = 36 ksi)

3. Structural Steel Pipe: A53, Gr. B (Fy = 35 ksi)

4. Structural Steel Tube: A500, Gr. B (Fy = 46 ksi)

5. Base Plates, Connection Plates: A36 (Fy = 36 ksi)

6. Anchor Bolts: A325

B. Steel Fabrication and Preparation.

1. After fabricating, prepare surfaces to comply with SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."

2. After preparation, apply one coat of lead- and chromate-free, modified-alkyd primer complying with MPI#76 and one coat of alkyd-gloss enamel complying with MPI#96.

Orange County Convention Center TP-460 2

3. After preparation, apply two-coat high-performance coating system consisting of organic zinc-rich primer, complying with SSPC-Paint 20 or SSPC-Paint 29 and topcoat of high-build, urethane or epoxy coating recommended by manufacturer for application over specified zinc-rich primer. Comply with coating manufacturer's written directions and with requirements in SSPC-PA 1, "Paint Application Specification No. 1: Shop, Field, and Maintenance Painting of Steel," for shop painting.

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

1) Benjamin Moore & Co.; Epoxy Zinc-Rich Primer CM18/19 and M74/M75 Aliphatic Acrylic Urethane Semi-Gloss.

2) Carboline Company; Carbozinc 621 and Carboguard 890 2-Component Epoxy.

3) ICI Devoe Coatings; Catha-Coat 313 and Devthane 378 Aliphatic Urethane Semi-Gloss Enamel

4) International Coatings Limited; Interzinc 315 Epoxy Zinc-Rich Primer and Interthane 870.

5) PPG Architectural Finishes, Inc; Aquapon Zinc-Rich Primer ABC 97-670 and Aquapon 97-130 Epoxy.

6) Sherwin-Williams Company (The); Corothane I GalvaPac Zinc Primer and Macropoxy HS High Solids Epoxy.

7) Tnemec Company, Inc.; Tneme-Zinc 90-97 and Series 27 Hi-Build Epoxy.

C. Bolts, Nuts, and Washers: Carbon steel; ASTM A 307, Grade A, for bolts; ASTM A 563, Grade A, for nuts; and ASTM F 436 for washers; hot-dip or mechanically zinc coated.

D. Refer to Technical Specification 400 (TP 400) for additional material/products available.

E. Existing Paint System Products: Subject to compliance with requirements, provide one of the following:

1. Primer

a. One (1) coat DC236K Bar Rust Surface Tolerant Epoxy Primer, as manufactured by The Devoe Company. Color to be GRAY, 4:1 Mix Ratio at 4-8 MILS DFT.

b. Sherwin Williams Macropoxy 646 at 5-10 MILS DFT.

2. Top Coat

a. One (1) Top Coat DC378K Devthane Aliphatic Urethane Semi-gloss at 2-3 MILS DFT, as Manufactured by The Devoe Company. Color to match existing or as determined by Owner.

b. Sherwin Williams Acrolon 218 HS at 3-6 MILS DFT.

Orange County Convention Center TP-460 3

1.4 REFERENCES

A. American Concrete Institute (ACI):

1. ACI 117 - Standard Specifications for Tolerances for Concrete Construction and Materials

2. ACI 301 – Standard Specifications for Structural Concrete

B. Steel Structures Painting Council (SSPC):

1. SSPC-SP 1 – Solvent Cleaning

2. SSPC-SP 3 – Power Tool Cleaning

3. SSPC-SP 6 – Commercial Blast Cleaning

4. SSPC-SP 10 – Near-White Blast Cleaning

5. SSPC-SP 11 – Power Tool Cleaning to Bare Metal

1.5 FIELD CONDITIONS

A. Apply paints only when temperature of surfaces to be painted and ambient air temperatures are between 50 and 95 deg F (10 and 35 deg C).

B. Do not apply paints in snow, rain, fog, or mist; when relative humidity exceeds 85 percent; at temperatures less than 5 deg F (3 deg C) above the dew point; or to damp or wet surfaces

1.6 REPAIRS

A. Rehabilitation of the Oversight Bridge Steel Deck Enclosure Angle.

1. Remove the existing joint sealant material and any foreign material along the full length of the exterior bridge deck.

2. Clean out the open joint with compressed air tools and other methods necessary to remove all loose material remnants and debris.

3. Clean the steel corroded angle by wire brushing, 60-grit sandpaper grinding, and/or sandblasting.

4. Patch any spalled concrete areas with a rapid hardening repair mortar listed on the FDOT product approval web site under specification section 930 or per technical specification 400 (TP 400).

5. After the steel angle has been thoroughly cleaned of rust it may have some holes that will require patching. Wipe the sanded surface of the metal with a clean rag or pressure wash the surface to remove sanded dust and debris. Let dry and repair with a two-part epoxy putty filler material. If the repair area is large, it may require the need to mix the two-part epoxy in stages to allow time to apply the putty before it hardens. After applying putty, make sure no air remains between the epoxy and the surface of the metal.

Allow the repair to cure per manufacturer’s specification. Sand the exposed surface of the cured metal with an 80-grit sandpaper to blend the surfaces of the metal.

Orange County Convention Center TP-460 4

6. Coat the inside voided area between the concrete and steel angle with a bonding

7. adhesive that qualifies for both concrete and steel and then fill the void with a non-shrink grout. Fill the void all the way to the top of the deck and finish flush with the walkway.

8. Apply an epoxy based prime coat to the outside exposed surfaces of the steel deck angle and allow to dry.

9. Paint the primed deck angle with a topcoat paint system to match the existing paint.

10. After 72 hours, apply a silane sealer to the concrete deck along the joint between concrete repairs.

B. Rehabilitation of steel members with section loss.

1. Cut/remove entire corroded section of damaged/corroded steel member at least 1 inch beyond corrosion limits.

2. Mechanically clean remaining steel to remove rust, dirt, grease, oil, and existing paint.

3. Field weld all around new steel member to match existing.

4. All field welding shall conform to ASW Structural Welding Code-Steel, ANSI/AWS D1.1.

5. Minimum weld shall be 3/16” thick throat.

6. Use materials that visually fully match in-place adjacent members and surfaces possible.

7. Unless otherwise noted, welded connections shall be seal welded to their supporting members.

8. No structural member shall be cut, notched, or otherwise reduced in size or strength without prior written approval from the structural engineer.

9. Remove weld slag after field welding.

10. Apply an epoxy based primer and paint affected areas to match existing.

C. Rehabilitation of corroded steel.

1. Sand off as much of the rust as possible using steel wool, a wire brush, sanding sponges, or small power sander.

2. If a few tough rust spots remain, apply a rust converter solution that creates a chemical reaction to prevent the rust from spreading.

a. Approved rust converters shall be applied per manufacturer’s specifications.

1) Permatex 81849 Rust Treatment

2) Corroseal 82331 Water-Based Rust Converter

3) Evapo-Rust Original Super Safe Rust Remover

4) Skyco Ospho Surface Prep

5) FDC Rust Converter ULTRA, Highly Effective Rust Repair

6) PlastiKote 624 Rust Converter

7) AdCoat Rust Converter and Primer

Orange County Convention Center TP-460 5

3. Rust Converters can sometimes leave an uneven surface, therefore, sand railing after applying rust converter to leave an even surface.

4. If necessary, use a rust repair filler (two-part epoxy) on any small open holes in the members. Follow Manufacturer’s recommendations on application.

5. Apply an epoxy based primer and paint affected areas to match existing.

D. Rehabilitation of access stairs. (Existing metal stair pans)

1. The existing access stairs are…