ASTM F585-16(R2021) pdf free download

ASTM F585-16(R2021) pdf free download.Standard Guide for Insertion of Flexible Polyethylene Pipe Into Existing Sewers
1. Scope
1.1 This guide describes design and selection considerations and installation procedures for the rehabilitation ofsanitary 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, sur- face restoration and interruption of service. 1.2 The polyethylene piping product manufacturer should be consulted to determine the polyethylene piping product’s suitability for insertion renewal 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. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appro- priate safety, health, and environmental practices and deter- mine the applicability of regulatory limitations prior to use. See 6.1, 7.1, and 8.1 for additional safety precautions. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
5. Design and Selection Considerations
5.1 General Guidelines: 5.1.1 Host Pipe Condition Assessment—Prior to the selec- tion 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 defects will permit polyethylene pipe insertion. 5.1.2 The presence of obstructions should be 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 ofinsertion excavations should be kept to a minimum and should coincide with areas where problems have been detected in the existing sewer (see Section 7).5.1.5 Solid wall or profile wall or corrugated polyethylene pipe may be assembled at the time of insertion using heat fusion in accordance with Practice F2620, integral bell and spigot joints, or mechanical connections as appropriate for the polyethylene piping product. 5.1.6 In all cases, the hydraulic capacity of the pipeline should be assessed by an engineer to insure the reduction in flow area from an inserted pipe or deterioration or deformation, or both, of the host pipe does not adversely impact the hydraulic capacity or flow characteristics of the storm or sanitary sewer. N OTE 1—It should be noted, in many instances, the pipe being retrofitted is not designed to flow at 100 percent capacity, which may provide additional options for downsizing of the inserted pipe. 5.2 Ancillary materials—Mechanical fasteners, sealants, grouts and other materials that are or are likely to be exposed to sanitary sewage, sewage gases or other corrosive elements of the sanitary sewer environment should be resistant to deleterious effects of the sanitary sewer environment. Sealants, grouts and other materials must be selected with the ability to adequately cure in underwater, sewage or other corrosive environments.