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HomeMy WebLinkAboutSoCal Pacific Construction Corp; 2010-07-14;City of Carlsbad MINOR PUBLIC WORKS PROJECT Project Manager: Jim Gusman /Or/tx_X-v / */ 2,01 (760)438-2722 Mail To: Utilities Department 5950 El Camino Real City of Carlsbad Carlsbad, California 92008-7314 DESCRIPTION Labor, materials and equipment to rehabilitate the interior surface of 6 sewer manholes (Exhibit "A") located within the city of Carlsbad to be deteriorating and/or have infiltration or possible exfiltration SECTION 03760 EPOXY MORTAR MANHOLE RESTORATION (Exhibit "B"). All work will be completed by June 28, 2010. Contractor to provide general traffic control plan and to obtain right-of- way permit as required by The City of Carlsbad. Contractor is responsible for property owner notification if access is needed onto private property. Contractor shall follow all required CAL OSHA requirements and CAL TRANS traffic control management. Sites & Quote Exhibit "A" Scope Exhibit "B" No job walk-through scheduled. Contractors to arrange site visit by contacting: Project Manager: Jim Gusman Phone No. (760) 438-2722 Contractor signature implies knowledge of all job terms and conditions SUBJECT TO ACCEPTANCE WITHIN (90) DAYS Name and Address of Contractor Socal Pacific Construction Corp. (951)471-3388 Name Telephone 29885 2nd St., Unit J (951)471-3779 Address Fax Lake Elsinore, CA. 92532 info!?socal-pacif ic . com City/State/Zip E-Mail Address -1- Revised 04/16/10 Name and Title of Pe contracts. President Signatu Anton Anstett Title 06/01/2010 Name Date JOB QUOTATION ITEM NO. 1 UNIT 1 QTY 1 DESCRIPTION Rehabilitate the interior surface of 6sewer manholes located within the City of Carlsbad having deterioration and/or have infiltration with flexible epoxy. NOT TO EXCEED TOTAL PRICE $24,192.00 $24,990.00 Quote Lump Sum, including all applicable taxes. Award is by total price. 443117 Contractor's License Number A, B, C-33 Classification(s) 06/30/2011 Expiration Date DESIGNATION OF SUBCONTRACTORS Set forth below is the full name and location of the place of business of each sub-contractor whom the contractor proposes to subcontract portions of the work in excess of one-half of one percent of the total bid, and the portion of the work which will be done by each sub-contractor for each subcontract. NOTE: The contractor understands that if he fails to specify a sub-contractor for any portion of the work to be performed under the contract in excess of one-half of one percent of the bid, the contractor shall be deemed to have agreed to perform such portion, and that the contractor shall not be permitted to sublet or subcontract that portion of the work, except in cases of the public emergency or necessity, and then only after a finding, reduced in writing as a public record of the Awarding Authority, setting forth the facts constituting the emergency or necessity in accordance with the provisions of the Subletting and Subcontracting Fair Practices Act (Section 4100 et seq. of the California Public Contract Code). If no subcontractors are to be employed on the project, enter the word "NONE." -2-Revised 04/16/10 PORTION OF WORK TO BE SUBCONTRACTED Item No. Description of Work NONE SUBCONTRACTOR* % of Total Contract Business Name and Address License No., Classification & Expiration Date MBE Yes No Total % Subcontracted: 0 * Indicate Minority Business Enterprise (MBE) of subcontractor. -3-Revised 04/16/10 CITY OF CARLSBAD MINOR PUBLIC WORKS CONTRACT (Less than $25,000) Labor: I propose to employ only skilled workers and to abide by all State and City of Carlsbad Ordinances governing labor, including paying the general prevailing rate of wages for each craft or type of worker needed to execute the contract. Guarantee: I guarantee all labor and materials furnished and agree to complete work in accordance with directions and subject to inspection approval and acceptance by: JIM GUSMAN (project manager) The Payment of Prevailing Wages is Not Required The City of Carlsbad is a Charter City. Carlsbad Municipal Code Section 3.28.130 supersedes the provisions of the California Labor Code when the public work is not a statewide concern. The City Manager has determined that it is not in the best interest of the city to require the payment of prevailing wages for this project. Payment of prevailing wages is at contractor's discretion. False Claims Contract hereby agrees that any contract claim submitted to the City must be asserted as part of the contract process as set forth in this agreement and not in anticipation of litigation or in conjunction with litigation. Contractor acknowledges that California Government Code sections 12650 et seq., the False Claims Act, provides for civil penalties where a person knowingly submits a false claim to a public entity. These provisions include false claims made with deliberate ignorance of the false information or in reckless disregard of the truth or falsity of the information. The provisions of Carlsbad Municipal Code sections 3.32.025, 3.32.026, 3.32 027 and 3.32.028 pertaining to false claims are incorporated herein by reference. Contractor hereby acknowledges that the filing of a false claim may be subject to the contractor to an administrative debarment proceeding wherein the contractor may be prevented from further bidding on public contracts for a period of up to five years and that debarment by another jurisdiction is grounds for the City of Carlsbad to disqualify the Contractor ^s^jBcontractor^fc^m participating in contract bidding. Signature: Print Name: Anton Anstett, President -4- Revised 04/16/10 Commercial General Liability, Automobile Liability and Workers' Compensation Insurance: The successful contractor shall provide to the City of Carlsbad, a Certification of Commercial General Liability and Property Damage Insurance and a Certificate of Workers' Compensation Insurance indicating coverage in a form approved by the California Insurance Commission. The certificates shall indicate coverage during the period of the contract and must be furnished to the City prior to the start of work. The minimum limits of liability Insurance are to be placed with insurers that have: (1) a rating in the most recent Best's Key Rating Guide of at least A-:V and (2) are admitted and authorized to transact the business of insurance in the State of California by the Insurance Commissioner. Commercial General Liability Insurance of Injuries including accidental death, to any one person in an amount not less than $500,000 Subject to the same limit for each person on account of one accident in an amount not less than $500,000 Property damage insurance in an amount of not less than $100,000 Automobile Liability Insurance in the amount of $100,000 combined single limit per accident for bodily injury and property damage. In addition, the auto policy must cover any vehicle used in the performance of the contract, used onsite or offsite, whether owned, non-owned or hired, and whether scheduled or non-scheduled. The automobile insurance certificate must state the coverage is for "any auto" and cannot be limited in any manner. The above policies shall have non-cancellation clause providing that thirty (30) days written notice shall be given to the City prior to such cancellation. The policies shall name the City of Carlsbad as additional insured. Indemnity: The Contractor shall assume the defense of, pay all expenses of defense, and indemnify and hold harmless the City, and its officers and employees, from all claims, loss, damage, injury and liability of every kind, nature and description, directly or indirectly arising from or in connection with the performance of the Contract or work; or from any failure or alleged failure of Contractor to comply with any applicable law, rules or regulations including those related to safety and health; and from any and all claims, loss, damages, injury and liability, howsoever the same may be caused, resulting directly or indirectly from the nature of the work covered by the Contract, except for loss or damage caused by the sole or active negligence or willful misconduct of the City. The expenses of defense include all costs and expenses including attorneys' fees for litigation, arbitration, or other dispute resolution method. -5- Revised 04/16/10 Jurisdiction: The Contractor agrees and hereby stipulates that the proper venue and jurisdiction for resolution of any disputes between the parties arising out of this agreement is San Diego County, California Start Work: I agree to start within 1 0 working days after receipt of Notice to Proceed. Completion: I agree to complete work within 20 working days after receipt of Notice to Proceed. CONTRACTOR: Socal Pacific Construction. Corp, (name of Coc By: Anton Anstett, President (print name and title) tony@socal-pacific.com CITY OF CARLSBAD a municipal corporation of the State of California: By: (e-mail Assistant City Manager/^\\V\C (address) (telephone no.) By: Stephan Hennes, Secretary (print name and title) 29885 2nd St., Unit J (address) Lake Elsinore, CA 92532 (city/state/zip) (951)471-3388 (telephone no.) (951)471-3779 (fax no.) info@socal-pacific.com (e-mail address) ATTEST: LORR, City Cle XjL^a^j^f _ (Proper notarial acknowledgment of execution by Contractor must be attached Chairman, president or vice-president and secretary, assistant secretary, CFO or assistant treasurer must sign for corporations. Otherwise, the corporation must attach a resolution certified by the secretary or assistant secretary under corporate seal empowering the officer(s) signing to bind the corporation.) APPROVED AS TO FORM: RONALD R B^LL^City Attorney BY: Deputy City Attorn -6-Revised 04/16/10 CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT State of California County of Riverside On 06/01 /201 0 before me, Lisa Perry, Notary Public Date Here Insert Name and Title of the Officer personally appeared Anton Anstett & Stephan Hennes Name(s) of Signer(s) LISA PERRY Commission * 1864969 Notary Public - California Riverside County MyComm. Expires Sep 14,2013 who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) js/are subscribed to the within instrument and acknowledged to me that ft$she/they executed the same in r authorized capacity (ies), and that by r signature(s) on the instrument the person(s), or the entity upon behalf of which the person(s) acted, executed the instrument. I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct. WITNESS my handed offici Place Notary Seal Above Signature~/\C/O\_ ^——S * Signatur OPTIONAL Though the information below is not required by law, it may prove valuable to persons rely/ng*onthe document and could prevent fraudulent removal and reattachment of this form to another docume Description of Attached Document Title or Type of Document: Document Date:Number of Pages: Signer(s) Other Than Named Above: Capacity(ies) Claimed by Signer(s) Signer's Name: D Corporate Officer — Title(s): D Individual D Partner — D Limited D General D Attorney in Fact D Trustee D Guardian or Conservator D Other: Signer Is Representing: RIGHT THUMBPRINT OF SIGNER Top of thumb here Signer's Name: D Corporate Officer — Title(s): D Individual D Partner — D Limited D General D Attorney in Fact D Trustee D Guardian or Conservator D Other: Signer Is Representing: RIGHT THUMBPRINT OF SIGNER Top of thumb here II I I II I I 1 I I% I2l I I I I © 2009 National Notary Association • NationalNotary.org • 1-800-US NOTARY (1-800-876-6827) Exhibit "A" City of Carlsbad Sewer Manhole Rehabilitation List FY 09/10 Location Cannon Rd from Car Country Dr to Paseo Del Norte 36" MH Map & MH Numbers Quantity MH# 22C-2 22C-5 22C-6 22C-7 21D-6 Approx Ftg Depth 15' 13'9" 13'3" 12'4" 14'6" 69' 4716 Sunburst Rd in back yard, southwest corner 24" MH 17C-39 12'6" Total MH's EXHIBIT "B" SECTION 03760 EPOXY MORTAR MANHOLE RESTORATION FOREWORD This specification covers work, materials and equipment required for protecting and/or rehabilitating concrete and masonry manholes and other underground vaults by monolithic spray-application of a high-build, solvent-free epoxy coating to eliminate infiltration, provide corrosion protection, repair voids and enhance structural integrity. Procedures for surface preparation, cleaning, application and testing are described herein. PART 1 - GENERAL 1.1 SECTION INCLUDES A. Requirements for surface preparation, concrete repairs and solvent-free epoxy coating application to specified surfaces, and frame and cover replacement. 1.2 RELATED SECTIONS A. 01010 Summary of Work. B. General Provisions of Contract. 1.3 REFERENCES A. ASTM D638 - Tensile Properties of Plastics. B. ASTM D790 - Flexural Properties of Unreinforced and Reinforced Plastics. C. ASTM D695 - Compressive Properties of Rigid Plastics. D. ASTM D4541 - Pull-off Strength of Coatings Using a Portable Adhesion Tester. E. ASTM D2584 - Volatile Matter Content. F. ASTM D2240 - Durometer Hardness, Type D. G. ASTM D543 - Resistance of Plastics to Chemical Reagents. H. ASTM C109 - Compressive Strength Hydraulic Cement Mortars. J. ACI 506.2-77 - Specifications for Materials, Proportioning, and Application of Shotcrete. City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-1 K. ASTM C579 - Compressive Strength of Chemically Setting Silicate and Silica Chemical Resistant Mortars. L. ASTM - The published standards of the American Society for Testing and Materials, West Conshohocken, PA. M. NACE - The published standards of National Association of Corrosion Engineers (NACE International), Houston, TX. N. SSPC - The published standards of the Society of Protective Coatings, Pittsburgh, PA. O. Los Angeles County Sanitation District - Evaluation of Protective Coatings for Concrete. P. SSPWC 210-2.3.3 - Chemical resistance testing published in the Standard Specifications for Public Works Construction, 1997 edition (otherwise known as "The Greenbook"). Q. City of Carlsbad Engineeing Standards, 2004 Edition. 1.4 SUBMITTALS A. The following items must be submitted consistent with General Provisions section 2.5.3: 1. Submit the following for Grout, Cementitious Reconstruction, Patching Materials, Chimney Seals, Epoxy Coating: a. Material type and manufacturer to be used, including catalog data showing manufacturer's clarifications and updates, ASTM references, matrial composition, specifications, physical properties, and chemical resistance, manufacturer's recommended mix, additives and set time. b. Manufacturer's detailed description of recommended procedures for handling and storing matrial to include use of strip recorder to monitor temperature at storage location. c. Manufacturer's detailed description of processes to execute the use of material including equipment required. City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-2 d. Shipping Manifest With: 1) Date shipped 2) Origination and delivery locations 3) Shipping method and carrier 4) Shipping order number 5) Purchase order number 6) Shipped item 7) Stock number 8) Lot number 9) Shipping, storage, or safety requiements, inlcuding MSDS documents 10) Received date and by 11) Signature of receiver 4. Applicator Qualifications: a. Current letter of Manufacturer's certification dated within thirty (30) days of bid date, that Applicator has been trained and approved in the handling, mixing and application of the products to be used (provide with bid proposal). b. Current letter of Manufacturer's Certification dated within thirty (30) days of bid date, that the equipment to be used for applying the products has been manufactured or approved by the protective coating manufacturer and Applicator personnel have been trained and certified for proper use of the equipment. c. Five (5) recent references of Applicator (projects similar size and scope) indicating successful application of a high-build solvent- free epoxy coating by plural component spray application (provide with bid proposal). d. Proof of any necessary federal, state or local permits or licenses necessary for the project. e. The Contractor must hold a valid Class A State Contractor's License and have a minimum of one prior successful project of comparable size and complexity. The Contractor shall provide the name, address and telephone number of the Owner, the completion date and the location of the reference project. 5. Design details for any additional ancillary systems and equipment to be used in site and surface preparation, application and testing. 6. Manufacturer's representative contact information. 7. Letter from epoxy manufacturer acknowledging all repair materials used in the rehabilitation are compatible with the epoxy coating. 8. Wastewater bypass or flow diversions plan. City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-3 9. Emergency plan detailing procedures to be followed in the event of a sewer overflow, blockage or service backup. Maintain a approved copy at the work site throughout the duration of the project. 10. For each access hole rehabilitated a complete and accurate record of work completed shall be kept. Report shall include: identifying access hole number, location, quantities of rehabilitation material used, estimate of infiltration eliminated, and results of post rehabilitation inspection along with all field test reports. A final report shall be provided at the conclusion of the rehabilitation. 1.5 QUALITY ASSURANCE A. Applicator shall initiate and enforce quality control procedures consistent with applicable ASTM, NACE and SSPC standards and the protective coating manufacturer's recommendations. B. A NACE Certified Coating Inspector shall be provided by Owner. The Inspector will observe surface preparation, application and material handling procedures to ensure adherence to the specifications. C. Manufacturer/supplier shall provide an authorized representative for purposes of monitoring the initial application. D. Packaging:The Contractor shall store all products to be used in their original, unopened packaging displaying the manufacturer's name, labels, product identification and batch numbers as applicable. Damaged material must be removed from the site immediately. 1.6 DELIVERY, STORAGE, AND HANDLING A. Materials are to be kept dry, protected from weather and stored under cover. B. Protective coating materials are to be stored between 50 deg F and 90 deg F. Do not store near flame, heat or strong oxidants. C. Protective coating materials are to be handled according to their material safety data sheets. D. Material damaged and deemed unrepairable will be rejected, removed from project site, and replaced at Engineer's direction. 1.7 SITE CONDITIONS A. Applicator shall conform with all local, state and federal regulations including those set forth by OSHA, RCRA and the EPA and any other applicable authorities. City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-4 B. Method statements and design procedures are to be provided by Owner when confined space entry, flow diversion or bypass is necessary in order for Applicator to perform the specified work. 1.8 WARRANTY A. Applicator shall warrant all work against defects in materials and workmanship for a period of one (1) year, unless otherwise noted, from the date of final acceptance of the project. Applicator shall, within a reasonable time after receipt of written notice thereof, repair defects in materials or workmanship which may develop during said one (1) year period, and any damage to other work caused by such defects or the repairing of same, at his own expense and without cost to the Owner. PART 2 - PRODUCTS 2.1 EXISTING PRODUCTS A. Standard Portland cement or new concrete (not quick setting high strength cement used for repair, see paragraph B below) must be well cured prior to application of the protective coating. Generally, 28 days is adequate cure time for standard Portland. If earlier application is desired, compressive or tensile strength of the concrete can be tested to determine if acceptable cure has occurred. (Note: Bond strength of the coating to the concrete surface is generally limited to the tensile strength of the concrete itself. Engineer may require Elcometer pull tests to determine suitability of concrete for coating) B. Cementitious patching and repair materials should not be used unless their manufacturer provides information as to its suitability and procedures for topcoating with an epoxy coating. Project specific submittals should be provided including application, cure time and surface preparation procedures which permit optimum bond strength with the epoxy coating. C. Remove existing coatings prior to application of the new protective coating. Applicator is to maintain strict adherence to applicable NACE and SSPC recommendations with regard to proper surface preparation and compatibility with existing coatings. 2.2 MANUFACTURER A. RLS, Inc., Tulsa, Oklahoma 800-324-2810 or 918-615-0020 or FAX 918-615- 0140. B. Corrosion resistamt epoxy shall have achieved a total score of "3" or "4" in the "Evaluation of Protective Coatings for Concrete" testing program provided through County Sanitation Districts of Los Angeles County California. In each of the specific categories of "Acid Resistance" and "Concrete Bond", the approved product will have received a score of "1". City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-5 2.3 REPAIR MATERIALS A. Repair materials shall be used to fill voids, structurally reinforce and/or rebuild surfaces, etc. as determined necessary by the engineer and protective coating applicator. Repair materials must be compatible with the specified epoxy coating and shall be applied in accordance with the manufacturer's recommendations. B. The following products may be accepted and approved as compatible repair basecoat materials for epoxy topcoating for use within the specifications: 1. 100% solids, solvent-free epoxy grout specifically formulated for epoxy topcoating compatibility. The epoxy grout manufacturer shall provide instructions for trowel or spray application and for epoxy topcoating procedures. 2. Factory blended, rapid setting, high early strength, non-shrink repair mortar that can be trowelled or pneumatically spray applied may be approved if specifically formulated to be suitable for epoxy topcoating. Such repair mortars should not be used unless their manufacturer provides information as to its suitability for topcoating with an epoxy coating. Project specific submittals should be provided including application, cure time and surface prepration procedures which permit optimum bond strength with the epoxy coating. 3. Hydraulic wate plugs shall be Sauereisen, Insatplug F-180; IPA Systems, Inc.k Ocotplug; or approved equal. 2.4 PROTECTIVE COATING MATERIAL A. Raven Lining Systems' 405 epoxy coating system - a 100% solids, solvent-free two-component epoxy resin system thixotropic in nature and filled with select fillers to minimize permeability and provide sag resistance acceptable to these specifications. Product type Amine cured epoxy Color Light Blue Solids Content (vol %) 100 Mix Ratio 3:1 Compressive Strength, psi 18,000 Tensile Strength, psi 7,600 Tensile Elongation, %1.50 Flexural Modulus, psi 600,000 Hardness, Type D 88 Bond Strength - Concrete >Tensile Strength of Concrete Chemical Resistance: Severe Municipal Sewer: All types of service Successful Pass: Sanitation District of L.A. County Coating Evaulation Study orSSPWC211-2 City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-6 2.5 PROTECTIVE COATING APPLICATION EQUIPMENT A. Manufacturer approved heated plural component spray equipment shall be used in the application of the specified protective coating. 2.6 REPAIR MORTAR SPRAY APPLICATION EQUIPMENT (if spray applied) A. Spray applied repair mortars shall be applied with manufacturer approved equipment. 2.7 FRAME AND COVER A. For 24-inch diameter entry, use SDRSD Drawing No. M1. with "City of Carlsbad Sewer" cast into cover. Coated with black bituminous paint B. For 36-inch diameter entry, use City of Carlsbad Standard Drawing S-4 2.8 REPAIR MORTAR SPRAY APPLICATION EQUIPMENT (if spray applied) Spray applied repair mortars shall be applied with manufacturer approved equipment. PART 3 - EXECUTION 3.1 ACCEPTABLE APPLICATORS A. Repair mortar applicators shall be trained to properly apply the cementitious mortar according to manufacturer's recommendations. B. Protective coating must be applied by a Certified Applicator of the protective coating manufacturer and according to manufacturer specifications. 3.2 EXAMINATION A. All structures to be coated shall be readily accessible to Applicator. B. Appropriate actions shall be taken to comply with local, state and federal regulatory and other applicable agencies with regard to environment, health and safety. C. The channel of the manhole shall be coated during low flow conditons by bypassing sewerage to assure the coating is installed below the average daily flow depth fo the channel. Hot air may be used to accelerate the cure time. D. Installation of the protective coating shall not commence until the concrete substrate has properly cured in accordance with these specifications. E. Temperature of the surface to be coated should be maintained between 40 deg F and 120 deg F during application. Prior to and during application, care should be taken to avoid exposure of direct sunlight or other intense heat source to the structure being coated. Where varying surface temperatures do exist, care should be taken to apply the coating when the temperature is falling versus rising (ie. late afternoon into evening vs. morning into afternoon). City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-7 3.3 SURFACE PREPARATION A. Applicator shall inspect all surfaces specified to receive a protective coating prior to surface preparation. Applicator shall notify Owner of any noticeable disparity in the surfaces which may interfere with the proper preparation or application of the repair mortar and protective coating. B. All contaminants including: oils, grease, incompatible existing coatings, waxes, form release, curing compounds, efflorescence, sealers, salts, or other contaminants shall be removed. C. All concrete or mortar that is not sound or has been damaged by chemical exposure shall be removed to a sound concrete surface or replaced. D. Remove all ladder steps from the structure, grinding flush with structure surface. All remaining exposed metals shall be rust protected according SSPC specifications for these conditions. E. Surface preparation method(s) should be based upon the conditions of the substrate, service environment and the requirements of the epoxy protective coating to be applied. F. Surfaces to receive protective coating shall be cleaned and abraded to produce a sound surface with adequate profile and porosity to provide a strong bond between the protective coating and the substrate. Generally, this can be achieved with a high pressure water cleaning using equipment capable of 5,000 psi at 4 gpm. Other methods such as high pressure water jetting (refer to NACE Standard No. 5/SSPC-SP12), abrasive blasting, shotblasting, grinding, scarifying or acid etching may also be used. Detergent water cleaning and hot water blasting may be necessary to remove oils, grease or other hydrocarbon residues from the concrete. Whichever method(s) are used, they shall be performed in a manner that provides a uniform, sound clean neutralized surface that is not excessively damaged. G. Infiltration shall be stopped by using a material which is compatible with the specified repair mortar and is suitable for topcoating with the specified epoxy protective coating. H. The area between the manhole and the manhole ring and any other area that might exhibit movement or cracking due to expansion and contraction, shall be grouted with a flexible grout or gel. I. All surfaces should be inspected by the Inspector during and after preparation and before the repair material is applied. J. All debris removed during the preparation process and installation of the rehabilitation system shall be removed from the site and disposed of in compliance with governing agency requirements. No debris shall be released or allowed to enter the sewer system. City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-8 3.4 APPLICATION OF REPAIR MATERIALS A. Areas where structural steel has been exposed or removed shall be repaired in accordance with the Project Engineer's recommendations. B. Repair materials shall meet the specifications herein. The materials shall be trowel or spray applied utilizing proper equipment on to specified surfaces. The material thickness shall be specified by the Project Engineer according to Owner's requirements and manufacturer's recommendations. C. If using approved cementitious repair materials, such shall be trowelled to provide a smooth surface with an average profile equivalent to coarse sandpaper to optimally receive the protective coating. No bugholes or honeycomb surfaces should remain after the final trowel procedure of the repair mortar. D. The repair materials shall be permitted to cure according to manufacturer recommendations. Curing compounds should not be used unless approved for compatibility with the specified protective coating. E. Application of the repair materials, if not performed by the coating certified applicator, should be inspected by the protective coating certified applicator to ensure proper finishing for suitability to receive the specified coating. F. After abrasive blast and leak repair is performed, all surfaces shall be inspected for remaining laitance prior to protective coating application. Any evidence of remaining contamination or laitance shall be removed by additional abrasive blast, shotblast or other approved method. If repair materials are used, refer to these specifications for surface preparation. Areas to be coated must also be prepared in accordance with these specifications after receiving a cementitious repair mortar and prior to application of the epoxy coating. G. Interior of access hole structure shall be returned to the approximate original interior dimensions with the installation of repair mortar. H. All surfaces shall be inspected during and after preparation and before the protective coating is applied. City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-9 3.5 APPLICATION OF PROTECTIVE COATING A. Application procedures shall conform to the recommendations of the protective coating manufacturer, including material handling, mixing, environmental controls during application, safety, and spray equipment. B. The spray equipment shall be specifically designed to accurately ratio and apply the specified protective coating materials and shall be regularly maintained and in proper working order. C. The protective coating material must be spray applied by a current Certified Applicator of the protective coating manufacturer. D. Specified surfaces shall be coated by spray application of a moisture tolerant, solvent-free, 100% solids, epoxy protective coating as further described herein. Spray application shall be to a minimum wet film thickness of 100 mils and an average wet film thicknesses of 125 mils. E. Airless spray application equipment approved by the coating manufacturer shall be used to apply each coat of the protective coating. Air assisted spray application equipment may be acceptable, especially for thinner coats (<10 mils), only if the air source is filtered to completely remove all oil and water. F. If necessary, subsequent topcoating or additional coats of the protective coating should occur as soon as the basecoat becomes tack free, ideally within 12 hours but no later than the recoat window for the specified products. Additional surface preparation procedures will be required if this recoat window is exceeded. G. Fiberglass woven-roving fabric may be rolled into the resin or chopped glass spray applied with the resin for added tensile and flexural strength where desired. Sloped surfaces of the floor may be made non-skid by broadcasting aluminum oxide or silica sand into the surface prior to gelation. H. Depending on flow levels and how long flow can be stopped, inverts may be lined with an approved 100% solids, fast setting epoxy coating material. 3.6 TESTING AND INSPECTION A. General. All inspection shall be done by the Contractor in the presence of and under the direction of the Engineer. Inspection procedures described as follows shall be consider as incidental to this contract and no additional payment will be made for the inspection procedures and subsequent repairs resulting from destructive tests. The City may acquire the services of tha 3rd party inspector (Special Inspector). The cost of the Special Inspector shall be paid by the City under a separate agreement. The Contractor shall provide safe access required by the Special Inspector or Engineer including all equipment and support necessary for confined space entry in compliance with all governing safety requirements. City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-10 B. Mill Gauge Test. During application a wet film thickness gage, such as those available through Paul N. Gardner Company, Inc. meeting ASTM D4414 - Standard Practice for Measurement of Wet Film Thickness of Organic Coatings by Notched Gages, shall be used to ensure a monolithic coating and uniform thickness during application. C. High Voltage Spark Test. After the protective coating has set hard to the touch it shall be inspected with high-voltage holiday detection equipment. Surface shall first be dried, an induced holiday shall then be made on to the coated concrete surface and shall serve to determine the minimum/maximum voltage to be used to test the coating for holidays at that particular area. The spark tester shall be initially set at 100 volts per 1 mi! (25 microns) of film thickness applied but may be adjusted as necessary to detect the induced holiday (refer to NACE RPO188-99). All detected holidays shall be marked and repaired by abrading the coating surface with grit disk paper or other hand tooling method. After abrading and cleaning, additional protective coating material can be hand applied to the repair area. All touch-up/repair procedures shall follow the protective coating manufacturer's recommendations. D. Adhesion Testing. The adhesion tests shall be performed on each of the rehabilitated structures at locations directed by the Engineer. Adhesion testing shall be conducted after the liner system has cured per manufacturer instruction and in accordance with ASTM D4541 as modified herein. A minimum of one 20 mm dolly shall be affixed to the lined surface of the structure at the upper section or cone area, mid section and at the bottom, unless otherwise specified in the Special Provisions. Each testing location shall be identified by the Engineer. The adhesive used to attach the dollies to the liner shall be rapid setting with tensile strength in excess of the liner material and permitted to cure in accordance with manufacturer recommendations. The lining material and dollies shall be adequately prepared to receive the adhesive. Prior to pull test, the Contractor shall utilize a scoring device to cut through the coating until the substrate is reached. Extreme care shall be required while scoring to prevent micro cracking in the coating, since cracks may cause failures at diminished strengths. Failure due to improper dolly adhesive or scoring shall require retesting. The pull tests in each area shall meet or exceed 200 psi. and shall include subbase adhered to the back of the dolly or no visual signs of coating material in the test hole. Pull tests with results between a minimum 150 psi and 200 psi shall be acceptable if more than 50% of the subsurface is adhered to the back of the dolly. A test result can be discarded, as determined by the Engineer, if there is a valid nonstatistical reason for discarding the test results as directed by Sections 8.4 and 8.5 of ASTM D4541. If any test fails, a minimum of three additional locations in the section of the failure shall be tested, as directed by the Engineer. If any of the retests fail all loosely adhered or unadhered liner in the failed area, as determined by the Engineer, shall be removed and replaced at the Contractor's expense. If a structure fails the adhesion test, one additional structure or 10% of the initial number of structures selected for testing shall be tested at the discretion of the Engineer and/or as specified in the Special Provisions. E. A final visual inspection shall be made by the Inspector and manufacturer's representative. Any deficiencies in the finished coating shall be marked and repaired according to the procedures set forth herein by Applicator. City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-11 3.6 FRAME AND COVER INSTALLATION A. Install per City of Carlsbad Engineering Standards, 2004 Edition Standard Drawing S-1. B. Following 3.03 paragraph G of this Section. C. Repair of pavement shall comply with Section 302-5.8 of the Standard Specifications for Public Works Construction, 2006 Edition, "Greenbook". 3.7 WARRANTY INSPECTIONS A. Visual inspection to determine integrity of rehabilitation materials and water tightness will be conducted prior to the expiration of the guarantee period. B. Contractor to accompany, Manufacturer Representative and Engineer on inspections. C. Adhesions Test 25 percent of access holes rehabilitaed at locations selected by the Engineer. If any access holes fail inspection, inspect all access holes in contract with Engineer. D Contractor shall repair all rehabilitation failures to the satisfaction of the coating manufacturer and Engineer. E. Each of the manholes shall be spark tested and visually inspected. ******** City of Carlsbad North Agua Hedionda Interceptor Sewer Replacement Project Epoxy Mortar Manhole Restoration CP3537 August 2008 03475-12