CITY OF ODESSA SPECIAL SPECIFICATIONS ITEM 1000 GLASS-FIBER REINFORCED POLYESTER (FRP) REHAB/REPLACEMENT MANHOLE

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1 CITY OF ODESSA SPECIAL SPECIFICATIONS ITEM 1000 GLASS-FIBER REINFORCED POLYESTER (FRP) REHAB/REPLACEMENT MANHOLE DESCRIPTION These specifications shall govern the furnishing of glass-fiber reinforced polyester (FRP) liner, referred to as fiberglass liner and will be used for manhole rehabilitation and for manhole replacement. The work will include FRP liners (0.50 thick), concrete grout, patching material; connecting existing sewer, outside sewer drops, and all appurtenances in accordance with the details shown on the plans and these specifications. The FRP manhole shall be one-piece monolithic designed unit constructed of glass-fiber reinforcement, supplier-certified unsaturated isophthalic polyester resin, and chemically enhanced silica to improve corrosion resistance, strength and overall performance. FRP manholes shall be manufactures in strict accordance with ASTM D-3753 Containment Solutions, Inc. Conroe, Texas, Flowtite FRP manholes, L.F. Manufacturing, Inc., Fiberglass Specialists, Giddings, Texas or approved equal MATERIAL A. Governing Standards Manhole FRP liner shall conform to the following design criteria: 1. ASTM D-3753: Standard Specification for Glass-Fiber Reinforced Polyester Manholes. 2. ASTM C-581: Practice for Determining Chemical Resistance of Chemical Thermosetting Resins Used in Glass-Fiber. 3. ASTM D-2412: Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel Plate Loading. 4. ASTM D-695: Test Methods for Compressive Properties of Rigid Plastics. 5. ASTM D-2584: Test Method for Ignition Loss of Cured Reinforced Resins. 6. ASTM D-790: Test Method for Flexural Properties of Unreinforced and Reinforced Plastics & Electrical Insulation Materials. 7. ASTM D-2583: Test Method for Indentation Hardness of Rigid Plastics by means of a Barcol Impressor 8. AASHO H-20: Axial Loading B. General Description Dimensions: The manhole shall be a circular cylinder, reduced at the top to a circular manway not smaller than 22-1/2 inside diameter. Manholes shall be produced in whole foot increments of length +/- 2. The nominal inside diameter for fiberglass replacement manholes shall be 48 and the nominal inside diameter for fiberglass rehab manholes shall be 42. Tolerance on the inside diameter shall be +/- 1%. Manhole wall thickness shall be a minimum of Other

2 diameters as agreed upon between purchaser and the manufacturer are covered by this specification. C. Configuration 1. The manway reducer must provide a bearing surface on which a standard ring and cover may be supported and adjusted to grade. The reducer shall be joined to the barrel section at the factory with resin and glass fiber reinforcement, thus providing required monolithic design to prevent infiltration and/or exfiltration through the manhole. D. Class 2. Manway reducer cone section shall be self-centering to permit vertical height adjustment (raising or lowering) of the manhole by Contractor utilizing manufacturer provided materials and detailed written instructions. The manhole shall be manufactured in one class of load rating. This class shall be H-20 wheel load (minimum 16,000 pounds dynamic wheel load). 1. Load Rating The complete manhole shall have a minimum dynamic load rating of 16,000 lbf. When testing in accordance with ATM 3753, 8.4 (note 1). To establish this rating the complete manhole shall not leak, crack or suffer other damage when load tested to 40,000 lbf and shall not deflect vertically downward more than 0.25 at the point of load application when loaded to 24,000 lb. 2. Stiffness The cylindrical portion of the manhole is to be tested in accordance with ASTM Method D The manhole cylinder shall have the minimum pipe-stiffness values shown in the table below, when tested in accordance with ASTM 3753, Section 8.5, (note 1). E. Test Methods Manhole Length (ft) PSI All tests shall be performed as specified in ASTM 3753, Section 8, Titled Test Methods. See ASTM 3753, Section 8, Note 5, for Test Method D-790 and Test Method D

3 F. Quality Assurance/Quality Control 1. Examination: Each manhole component part shall be examined for dimensional requirements, hardness, and workmanship. 2. Composition Control: Controls on glass and resin content shall be maintained for all manufacturing processes and for each portion for manhole fabrication. Records shall be maintained of these control checks. Proper glass content may be shown by glass usage checks, by glass and resin application rate checks, in accordance with the material composition test in ASTM All required ASTM 3753 testing shall be completed and records of all testing shall be kept and copies of test results shall be presented to customer upon written request with in a reasonable time period. G. Certification When requested by the purchaser on hi order, a certification shall be made the basis of acceptance. This shall consist of a copy of the manufacturer s test report or a statement by the supplier accompanied by a copy of the test results, that the manhole has been sampled, tested and inspected in accordance with the provisions of ASTM 3753 and this specification, and meets all requirements. Each certification so furnished shall be signed by an authorized agent of the supplier or manufacturer CONSTRUCTION METHOD All excavation, trenching, and backfilling shall conform to the requirements of Item 100, Excavation, Trenching and Backfilling for Utility Systems and Structures. A. Rehabilitation Manhole The existing brick manhole cone shall be removed from the manhole to allow access for the work. The existing brick manhole walls shall be cleaned, metal steps removed, and a 5 ledge shipped out of the existing concrete wash for the FRP liner to set on. The FRP liner shall be installed in accordance with the details shown on the plans and as recommended by the manufacturer. B. Bottom Seal The FRP liner shall set in quick-setting non-shrink epoxy grout, strong-seal QSR or approved equal. A good bottom seal must be obtained on the FRP liners to prevent leakage. For rehab manholes, the installer should place a 6 height of quick-setting grout above the initial bottom seal in the annular void area between the FRP liner and existing brick or concrete manhole to ensure the adequacy of the bottom plug or seal. C. Patch Material

4 The area around the FRP liner and the existing concrete wash shall be cleaned and coated with a fast setting, high early strength, non shrink, acid resistant, hand mixed and hand applied product. The product shall be used to fill voids under and around the FRP and over all the surface area of the concrete wash, down to the top edge of the invert. All work shall be done in accordance with the details shown on the drawings and the product manufactures recommendations. The product to be used shall be QSR Patching Material, as manufactured by STRONG-SEAL SYSTEMS CORPORATION (870) , or approved equal. The Contractor shall take care to maintain the FRP liner on the prepared ledge when the material is applied on the concrete wash and the FRP liner. D. The Replacement Manhole The existing manhole shall be completely demolished including wash and base. The FRP manhole shall be installed in accordance with the details shown on the plans and as recommended by the manufacturer. The FRP shall set plum with the finished street grade or if not in street to natural ground. E. Concrete Grout 1. Fill the annular void between the FRP liner and the existing brick or concrete manhole with an economical Portland Cement and sand grout. The use of Modified Portland Cement (Type II) is desirable since it possesses moderate sulfate resistance characteristics. The consistency of the grout-bulky but fluid. 2. The Contractor shall take care to maintain the FRP line on the prepared level ledge made in the concrete wash while grouting the area between the existing manhole wall and FRP liner. F. Manhole Frame and Covers Manhole frame and cover castings shall conform to ASTM Standard Specification A-48, and shall be made of clean even grain, tough gray cast iron. They shall be smooth, true to pattern, and free from projections, sand holes, warp, and other defects. They shall bare the name and catalogue number and shall weigh not less than 95% of catalogue weights. The manhole frame and covers shall be East Jordan Iron Work, Inc., 1177Z frame and cover. G. Inserta Tee 1. Inserta Tee, as manufactured by INSERTA FITTINGS CO., HILLSBORO, Oregon, is a three0piece service connection consisting of a PVC Hub, Rubber Sleeve and a Stainless Steel Band. The Inserta Tee is compression fit into the cored wall of the RFP liner and will be used to connect the existing sewer lateral(s) to the manhole. 2. The gasketed bell shall be ASTM D3034, SDR 35 material, with an ASTM F477 gasket, ASTM C443 rubber sleeve and a 301 SS Stainless Steel band. 3. The core hole in the wall of the FRP shall be done in accordance with the manufacturer recommendation

5 4. The completed Inserta Tee attachment shall be assembled in accordance with the manufactures directions, fit square with the FRP liner wall, not leak and be compatible with the existing sewer connection MEASUREMENT AND PAYMENT A. Replacement and Rehab manhole groups shall be bid as a lump sum. The manholes listed in a bid item shall be observed in the field to be complete before payment is made to the Contractor Owner reserves the right to make partial payments on a lump sum bid item. B. Outside Drops Outside Drops will not be measured in the field for payment. Outside drops will be observed in the field to complete before the lump sum payment is made to the Contractor. Owner reserves the right to make partial payments on a lump sum bid item MEASUREMENT AND PAYMENT A. Trench Safety The Contractor shall include a lump sum price in the base bid and each alternate bid for Trench Safety. The payment for trench safety will be paid upon completion of the Base Bid and each Alternate. The Owner reserves the right to make partial payments on the lump sum items