ASTM F585-16 (R2021) pdf free download.Standard Guide for Insertion of Flexible Polyethylene Pipe Into Existing Sewers.
1.1 This guide describes design and selection considerations and installation procedures for the rehabilitation of sanitary and storm sewers by the insertion of solid wall or profile wall or corrugated polyethylene pipe into an existing pipe and along its existing line and grade. The procedures in this guide are intended to minimize traffic disruption. surface damage. surface restoration and interruption of service.
1.2 The polyethylene piping product manufacturer should he consulted to determine the polyethylene piping product’s suitability for inscrtion rcnewal as described in this guide.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
3. Terminology
3.1 Definitions—Definitions are in accordance with Terminology F412, unless otherwise specified.
4. Significance and Use
4. 1 The procedures described in this guide arc intended as a design and review aid for use by the design engineer in conjunction with manufacturer’s recommendations for installing a polyethylene pipe using the insertion method.
5. Design and Selection Considerations
5. 1 General Guidelines:
5. 1.1Host Pipe Condition Assessment—Prior to the selection of polyethylene pipe size and installation procedure, measures should be taken to determine in detail the condition of the host (original) sewer piping. A detailed examination should determine if the host sewer piping is structurally sufficient, and that any joint offsets or other host pipe detects will permit polyethylene pipe insertion.
5.1.2 The presence of obstructions should he determined (see 6.3). Protrusions of lateral or service piping into the host sewer pipe, root growths, sedimentation, mineral deposits, or any combination of such obstructions. may require remedial work prior to inserting the polyethylene pipe.
5.1.3 To ensure against interference during insertion, the minimum annular clearance between the polyethylene pipe OD and the host pipe ID should be 10 % of the host pipe ID or 2 in. (50 mm) whichever is less. Greater annular clearance is acceptable. Outside diameter information should be obtained from the polyethylene pipe manufacturer.
5.1.4 The number of insertion excavations should be kept to a minimum and should coincide with areas where problems have been detected in the existing sewer (see Section 7).ASTM F585 pdf download.