Agenda - Council - 06/27/2017 - Laserfiche WebLink

Home

The reinforcing glass fibers used to manufacture the components shall be of highest quality commercial grade E-glass filaments with binder and sizing compatible with impregnating resins. Sand used to manufacture the pipe and fittings shall be minimum ninety eight percent (98%) silica sand with a maximum moisture content of two tenths of a percent (0.2%). Pipe resin additives, such as curing agents, pigments, dyes, fillers, thixotropic agents, etc., when used, shall not detrimentally effect the performance of the products. Gaskets shall be supplied by approved gasket manufacturers and be suitable for the service intended. Minimum pressure rating of gaskets shall be two hundred fifty (250) psi. Unless otherwise specified, the pipe shall be field connected with fiberglass sleeve couplings that utilize elastomeric sealing gaskets made of EPDM rubber compound to provide watertight joints meeting the requirements of ASTM D4161. Joints at tie-ins, when needed, may utilize fiberglass, gasket -sealed closure couplings. Fittings shall be capable of withstanding all operating conditions when installed. They may be contact molded or manufactured from mitered sections of pipe joined by glass -fiber -reinforced overlays. Properly protected standard ductile iron, fusion -bonded epoxy -coated steel and stainless steel fittings are allowed unless otherwise stated in the Special Provisions. The actual outside diameter (eighteen inch (18") to forty eight inch (48")) of the pipes shall be in accordance with ASTM D3262. Other pipe diameter OD's shall be per manufacturer's literature. Pipe shall be supplied in nominal lengths of twenty feet (20') except where noted otherwise on the drawings. Actual laying length shall be nominal ±1/4 inches. At least ninety percent (90%) of the total footage of each size and class of pipe, excluding special order lengths, shall be furnished in nominal length sections. Pipe ends shall be square to the longitudinal pipe axis with a maximum tolerance of eight inch (1/8"). Pipe shall be marked identifying each pipe with the name of manufacturer, plant location, code date of manufacturer, nominal pipe size, pipe stiffness designation and ASTM D3262. Service lateral connections (wye, tee, bend) to the sanitary sewer shall be as recommended by the main line sewer pipe manufacturer recommendation. All Polypropylene Pipe Corrugated Polypropylene Pipe (PP) for gravity sewers shall be Dual -Wall (six inch (6") to thirty inch (30") diameter) pipe conforming to ASTM F2736 and Triple Wall (thirty inch (30") to sixty inch (60") diameter) pipe conforming to ASTM F2764. Pipe joints shall be bell and spigot push - on type, soil -tight and watertight joints in accordance with ASTM D3212 and ASTM F477., and shall conform to the requirements of AASHTO M-294 and Section 18 of the AASHTO Standard Specifications for Highway Bridges for storm sewer pipe sizes twelve inch (12") through sixty inch (60"). Pipe manufacture, watertight joint testing, and installation shall conform to current MnDOT requirements, ASTM C969, and as indicated in the Plans, Specifications, and Special Provisions. Page 44