1.0 Description. These specifications cover the purchase of polyethylene pipe liners (PPL) for lining existing culvert pipes for maintenance purposes. 2.0 Materials. 2.1 Liner Pipe. Pipe shall be PE or PVC and shall comply with the requirements for the Type listed. 2.1.1 Type I. Type I PPL shall comply with the requirements of ASTM F 714 (Max. DR 32.5). 2.1.2 Type II. Type II PPL shall be manufactured from material meeting ASTM D 3350 Cell Classification 345464C and shall comply with the dimensional requirements of Table 1 of this specification or Table 2 if approved by the engineer. 2.1.3 Type III. Type III PPL shall comply with the requirements of ASTM F894 open profile, Class RSC 100 or RSC 160. 2.1.4 Type IV. Type IV PVC pipe shall meet the specifications of ASTM F-949, except that the PVC Pipe & Fittings shall be made of PVC compound having a minimum call classification of 12454B in accordance with ASTM D 1784. The joining method for PVC pipe shall be by elastomeric material meeting the requirements of ASTM F-949. (Note: Clearance requirements limits the minimum size of Type IV to a 12” diameter and ASTM F-949-95a currently limits the maximum size to a 36” diameter.) 2.2 The dimensions of PPL shall meet the requirements of Table 3 of this specification. The length shall not be less than that specified in the order. 2.3 The PPL shall be capable of being joined into a continuous length by an approved interlocking method formed into the ends of the liner. Unless otherwise specified, the joints shall be soil-tight with no gaskets required. 2.4 Unless otherwise specified in the bid request, each PPL shall have a male and a female end. 2.5 Each length of pipe furnished shall be permanently marked by the manufacturer with the manufacturer's name, and applicable ASTM designation. The marking shall be such that it will not be obliterated during handling, shipment or placement.
