SPECIAL SPECIFICATION 5925 Polyvinyl Cloride (PVC) Sewer Pipe and Fittings

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1 1993 Specifications CSJ SPECIAL SPECIFICATION 5925 Polyvinyl Cloride (PVC) Sewer Pipe and Fittings 1. General. (1) Scope. This Section includes the furnishing, installation, and subsequent testing of polyvinyl chloride (PVC) sewer pipe and connecting fittings. (2) Related Requirements. Trenching and the subsequent backfilling operations excluding backfill in pipe zone shall be as shown on the plans. (3) References. The publications listed below form a part of this special specification to the extent referenced. The publications are referred to in the text by basic designation only. 2. Products. (1) Materials. American Society for Testing and Materials (ASTM) ASTM D Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds ASTM D Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications ASTM D Standard Specification for Type PSM Poly (Vinyl Chloride) (PVC) Sewer Pipe and Fittings ASTM D Standard Specification for Joints for Drain and Sewer Plastic Pipes using Flexible Elastomeric Seals ASTM F Standard Specification for Poly (Vinyl Chloride) (PVC) Large-Diameter Plastic Gravity Sewer Pipe and Fittings (a) Sewer pipe and fittings shall be in accordance with the requirements of ASTM D3034 (SDR-26 min) and ASTM F679 (SDR-26min), or as indicated on the plans. (b) Gaskets shall be in accordance with the requirements of ASTM D3212. The gasket shall be the sole element depended upon to make the joint flexible and watertight. The gasket shall be a continuous elastomeric ring

2 3. Execution. (c) Lubricant shall be in accordance with the requirements of ASTM D3212. Lubricant shall be suitable for lubricating the parts of the joints in the assembly. The lubricant shall not have any deteriorating effects on the gasket and pipe materials. (d) Materials for manholes shall conform to the materials requirements of Item 465, Manholes and Inlets and as shown on the plans. If specified, prefabricated fiberglass manholes shall conform to the shape, size, dimensions, and details as shown on the plans. Unless otherwise shown on the plans, manhole section shall conform to ASTM D3753. Acceptable manufacturers: Fiberglass manholes manufactured by Owens/Corning, L.F. manufacturing, Inc. or an approved equal. The date of manufacture and name or trademark of the manufacturer shall be stenciled in 1-inch high letters on the inside of the barrel. Unless a larger size is specified, a 48 in. diameter barrel for fiberglass manholes shall be used. Wall sections shall be of the appropriate thickness for the depth of manhole as specified in ASTM D3753, but shall not be less than 0.48 in. in thickness. A fabricated reducer bonded at the factory shall be provided to from 1 continuous unit at the top of the manhole barrel to accept concrete grade rings and cast-iron frame and cover. For the reducer, use an acceptable design with sufficient strength to safely support HS-20 loading. The manhole base shall be a minimum 12 in. (under the invert) precast concrete base. For precast manhole bases, an approved steel reinforced design of sufficient strength to withstand the imposed loads shall be used. An acceptable joint shall be included in the base to receive fiberglass pipe section forming the barrel of the manhole. Precast concrete base sections shall be coated with Thanecoat TC300 or Approved equal, as recommended by the manufacturer. (e) Rings and Covers. Materials for rings and covers shall conform to the material requirements of Item 471, Frames, Grated, Rings and Covers. Covers and rings shall conform to the shapes, dimensions and shall be marked with the wording and/or logos as shown on the plans. (f) Rehabilitating existing manholes will consist of the insertion of a fiberglass manhole inside of the existing manhole. All voids will be grouted. (1) Erection/Installation/Application and/or Construction. (a) Trenching and subsequent backfill operations (excluding backfill in the pipe zone) to be per applicable specifications and/or as shown on the plans

3 (b) Backfill in Pipe Zone. The backfill pipe and fittings in accordance with ASTM D2321 except as shown on plans. Note: Initial backfill over pipe shall be 1 ft. in all cases. Only Class I, II, and III embedment materials (aggregate or sand) will be considered suitable for PVC sewer pipe installations unless otherwise indicated on the plans. The Contractor should avoid contact between pipe and compaction equipment. Compaction of haunching, initial backfill, and backfill material shall be done in a manner that compaction equipment is not used directly above pipe until sufficient backfill has been placed to ensure that equipment will have no damaging effect on pipe. (c) Backfill Above Pipe Zone. Backfill shall be in accordance with the plans and/or as specified under other specification items. (d) Joining. The Contractor shall use elastomeric gasket joints, per ASTM D3212, providing a watertight seal. Assembly of joints shall be per manufacturer's recommendations. (e) Connections to Manholes and Other Rigid Structures. Manhole couplings corresponding shall size of sewer pipe shall be cast directly into a rigid structure such as manhole or manhole base. (2) Repair/Restoration. Any damage to pipe or any trench or over excavation not authorized by the Engineer and which is caused by the Contractor's activities shall be repaired or replaced at no additional cost. Over-excavated materials shall be replaced using Class I, II, or III materials in accordance with plans. (3) Field Quality Control. (a) Deflection Testing. On completion of backfill operations and after a period of 30 days, deflection testing shall be accomplished as follows: On completion of backfill operations and after a period of 30 days, deflection testing shall be accomplished as follows: For pipelines with an inside diameter less than 27 in. a rigid mandrel is to be used to measure deflection. Pipelines with an inside diameter of 27 in. and greater, a method approved by the Engineer shall be used for the testing of vertical deflections. Other methods shall provide a measurement of deflection precision of two-tenths of one percent (0.2%). No pipe of any diameter shall exceed a deflection of 5%, unless otherwise shown on plans. If the pipe fails to pass the deflection test, the pipeline shall be repaired or replaced as necessary and retested. Test for deflection shall be completed by pulling a hand line with an attached mandrel device through the pipe (no mechanical pulling device allowed). The mandrel shall have an outside diameter (O.D.) equal to 95% of the inside diameter (I.D.) of the pipe to be tested. The I.D. of the pipe, for the purpose of determining the O.D. of the mandrel, shall the average O.D. controlled pipe and the average I.D. controlled pipe with all dimensions per appropriate standard. Statistical or other "Tolerance Packages" shall not be considered in mandrel sizing

4 4. Measurement. The rigid mandrel shall be constructed of a metal or a rigid plastic material that can withstand 200 psi without deformation. The mandrel shall have 9 or more runners or legs as long as the total number of legs is an odd number. The barrel section of the mandrel shall to have a length of at least 75% of the I.D. of the pipe being tested. A proving ring shall be provided and used for each size mandrel in use. Adjustable or flexible mandrels are prohibited. Television inspection is not a substitute for deflection testing. A deflectometer may be used if indicated on the plans or as approved by the Engineer on a case-by-case basis. Mandrels with removable legs or runners also, if indicated on the plans or approved by the Engineer, may be used on a case-by-case basis. (1) "Sanitary Sewer Pipe (8 ) will be measured by the linear foot, complete, accepted in (2) "Sanitary Sewer Pipe (10 ) will be measured by the linear foot, complete, accepted in (3) "Sanitary Sewer Pipe (12 ) will be measured by the linear foot, complete, accepted in (4) Manhole (San Sew) will be measured as each completed, accepted in (5) Rehabilitate Sanitary Sewer Manhole will be measured as each completed, accepted in (6) Clean Out Manhole will be measured as each completed, accepted in (7) Plug and Abandon Existing 8 Sanitary Sewer" will be measured as each completed. (8) Remove Existing 12 Sanitary Sewer will be measured by the linear foot. 5. Payment. (1) The work performed and materials furnished in accordance with this Item and measured as provided under "Measurement" will be paid for at the unit prices bid for the items of work hereinafter described. (2) These prices shall be full compensation for furnishing and hauling all materials; for inspection and testing; and for all other items of material, labor, equipment, tools and incidentals necessary to complete the work in accordance with the plans and specifications. (3) Payment for "Sanitary Sewer Pipe (8 )" will be paid for at the unit price bid per linear (4) Payment for Manhole (San Sew) will be paid for at the unit price bid per each installed

5 (5) Payment for Rehabilitate Sanitary Sewer Manhole will be paid for at the unit price bid per each installed. (6) Payment for Clean Out Manhole will be paid for at the unit price bid per each installed. (7) Payment for "Sanitary Sewer Pipe (10 )" will be paid for at the unit price bid per linear (8) Payment for "Sanitary Sewer Pipe (12 )" will be paid for at the unit price bid per linear (9) Payment for "Plug and Abandon Existing 8 Sanitary Sewer" will be paid for at the unit price bid per each completed. (10) Payment for "Remove Existing 12 Sanitary Sewer" will be paid for at the unit price bid per linear foot completed