ASTM F449-20
(Practice)Standard Practice for Subsurface Installation of Corrugated Polyethylene Pipe for Agricultural Drainage or Water Table Control
Standard Practice for Subsurface Installation of Corrugated Polyethylene Pipe for Agricultural Drainage or Water Table Control
ABSTRACT
This practice covers the procedures for subsurface installation of corrugated polyethylene pipe, in accordance with the flexible conduit principles, intended for agricultural drainage or water table control. It is not however recommended for sanitary and storm sewer applications. General requirements for installation include: maximum and minimum burial depth; trench width; design of blinding, bedding, or envelope materials that are to be placed as the pipe is installed to ensure uniform continuous support; and granular or synthetic filters that are used to restrict the movement of particles into the pipe so as to maintain its hydraulic capacity. The pipe shall be aligned as smooth as possible with a curve radius larger than five times the pipe diameter while the backfill material shall be placed preferably on an angle to prevent pipe displacement or deflection. Stony trenches shall be avoided and any over-excavation or rock excavation shall be treated with proper bedding material. Factors that affect the proper handling of the pipe such as temperature; stretch caused by tension and bending forces; synthetic envelopes and filters that are subject to abrasion and tearing; and protection from fire hazards, livestock, heavy wheel traffic, and rodents or other animals shall also be considered during installation.
SCOPE
1.1 This practice is recommended for and limited to gravity flow subsurface drainage systems or water table control, but not recommended for sanitary or storm sewer applications. Procedures are outlined to minimize pipe deflection or structural damage during and after the installation process. These installation procedures are in accordance with “flexible conduit” principles.
1.2 This practice applies to all agricultural subsurface drainage or water table control installations using Specification F667, F2648, or other plastic pipe.
Note 1: Specific references to the appendix in the body of this practice are for informational purposes.
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, may not be equivalents 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 appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Buy Standard
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F449 − 20
Standard Practice for
Subsurface Installation of Corrugated Polyethylene Pipe for
1
Agricultural Drainage or Water Table Control
ThisstandardisissuedunderthefixeddesignationF449;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D2321 PracticeforUndergroundInstallationofThermoplas-
tic Pipe for Sewers and Other Gravity-Flow Applications
1.1 This practice is recommended for and limited to gravity
D2412 Test Method for Determination of External Loading
flow subsurface drainage systems or water table control, but
Characteristics of Plastic Pipe by Parallel-Plate Loading
not recommended for sanitary or storm sewer applications.
D2487 Practice for Classification of Soils for Engineering
Procedures are outlined to minimize pipe deflection or struc-
Purposes (Unified Soil Classification System)
tural damage during and after the installation process. These
F412 Terminology Relating to Plastic Piping Systems
installation procedures are in accordance with “flexible con-
F667 Specification for 3 through 24 in. Corrugated Polyeth-
duit” principles.
ylene Pipe and Fittings
1.2 This practice applies to all agricultural subsurface drain-
F2648 Specification for 2 to 60 inch [50 to 1500 mm]
age or water table control installations using Specification
Annular Corrugated Profile Wall Polyethylene (PE) Pipe
F667, F2648, or other plastic pipe.
and Fittings for Land Drainage Applications
NOTE1—Specificreferencestotheappendixinthebodyofthispractice
are for informational purposes.
3. Terminology
1.3 The values stated in inch-pound units are to be regarded
3.1 Definitions are in accordance with Terminology F412
as standard. The values given in parentheses are mathematical
and abbreviations are in accordance with Terminology D1600,
conversions to SI units that are provided for information only,
unless otherwise specified.
may not be equivalents and are not considered standard.
3.2 backfill—materials used to fill the trench following
1.4 This standard does not purport to address all of the
installation of the pipe and bedding.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3.3 bedding—material which provides bottom and side sup-
priate safety, health, and environmental practices and deter-
port for the pipe.
mine the applicability of regulatory limitations prior to use.
3.4 blinding—the placement of bedding material over and
1.5 This international standard was developed in accor-
on the sides of the pipe to ensure proper grade, alignment,
dance with internationally recognized principles on standard-
support, and protection of pipe during backfilling after instal-
ization established in the Decision on Principles for the
lation.
Development of International Standards, Guides and Recom-
3.5 boot (also shield)——the protecting apparatus linked to
mendations issued by the World Trade Organization Technical
the rear of the installation machine in a manner which allows
Barriers to Trade (TBT) Committee.
placement of the pipe on the trench bottom, protection of the
2. Referenced Documents
workman, or placement of envelope or filter material, or both.
2
2.1 ASTM Standards:
3.6 cradle—a structure designed to provide trench bottom
D1600 Terminology forAbbreviatedTerms Relating to Plas-
support for the pipe.
tics
3.7 envelope—porous material placed around the pipe to fill
the excavated space.
1
This practice is under the jurisdiction of ASTM Committee F17 on Plastic
3.8 filter—an envelope of natural or synthetic materials
Piping Systems and is the direct responsibility of Subcommittee F17.65 on Land
Drainage.
placed completely around the pipe to permit free water
Current edition approved Feb. 1, 2020. Published May 2020. Originally
movement into pipe perforations and restrict movement of silt
approved in 1976. Last previous edition approved in 2016 as F449 – 16. DOI:
and sand into the pipe.
10.1520/F0449-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.8.1 Discussion—When crushed stone is used as the filter
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
medium it also provides stabilizing support for the pipe.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 3.9 grade—the slope of the pipe invert.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Ha
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F449 − 16 F449 − 20
Standard Practice for
Subsurface Installation of Corrugated Polyethylene Pipe for
1
Agricultural Drainage or Water Table Control
This standard is issued under the fixed designation F449; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This practice is recommended for and limited to gravity flow subsurface drainage systems or water table control, but not
recommended for sanitary or storm sewer applications. Procedures are outlined to minimize pipe deflection or structural damage
during and after the installation process. These installation procedures are in accordance with “flexible conduit” principles.
1.2 This practice applies to all agricultural subsurface drainage or water table control installations using Specification F667,
F2648, or other plastic pipe.
NOTE 1—Specific references to the appendix in the body of this practice are for informational purposes.
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 only, may not be equivalents 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 appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D1600 Terminology for Abbreviated Terms Relating to Plastics
D2321 Practice for Underground Installation of Thermoplastic Pipe for Sewers and Other Gravity-Flow Applications
D2412 Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading
D2487 Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)
F412 Terminology Relating to Plastic Piping Systems
F667 Specification for 3 through 24 in. Corrugated Polyethylene Pipe and Fittings
F2648 Specification for 2 to 60 inch [50 to 1500 mm] Annular Corrugated Profile Wall Polyethylene (PE) Pipe and Fittings for
Land Drainage Applications
3. Terminology
3.1 Definitions are in accordance with Terminology F412 and abbreviations are in accordance with Terminology D1600, unless
otherwise specified.
3.2 backfill—materials used to fill the trench following installation of the pipe and bedding.
3.3 bedding—material which provides stable bottom and side support for the pipe including the trench bottom groove support
angle or select material placed around the pipe, and envelope or filter materials where used during installation.pipe.
3.4 blinding—the placement of soil, bedding material over and on the sides of the pipe or envelope to ensure proper grade,
alignment, support, and protection of pipe during backfilling and after installation.
1
This practice is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.65 on Land Drainage.
Current edition approved Feb. 15, 2016Feb. 1, 2020. Published March 2016May 2020. Originally approved in 1976. Last previous edition approved in 20142016 as
F449 – 02F449 – 16.(2014). DOI: 10.1520/F0449-16.10.1520/F0449-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F449 − 20
3.5 boot (also shield)—the—the protecting apparatus linked to the rear of the installation machine in a manner which allows
placement of the pipe on the trench bottom, protection of the workman, or p
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.