Standard Specification for Prefabricated Bituminous Geomembrane Used as Canal and Ditch Liner (Exposed Type)

ABSTRACT
This specification covers prefabricated asphalt liner sheets intended for installation to provide a continuous, exposed lining for reservoirs, ponds, canals, and ditches. The liner sheets shall consist of layers of asphalt mastic between asphalt-saturated felts, mats, or fabrics, and shall be coated on both sides and covered with a material to prevent the finished sheets from sticking together during storage and shipment. The coating shall be a hot-applied asphalt material permitted to be compounded with a mineral stabilizer. Thickness of asphalt coating, water absorption, mass percent of asphalt, resistance to decay, flexibility, brittleness, and heat dissipation tests shall be performed to conform to the requirements specified.
SCOPE
1.1 This specification covers prefabricated bituminous geomembranes intended to provide a continuous, exposed lining for canals and ditches.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3 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.  
1.4 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.

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Publication Date
31-Aug-2021
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ASTM D2643/D2643M-21 - Standard Specification for Prefabricated Bituminous Geomembrane Used as Canal and Ditch Liner (Exposed Type)
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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:D2643/D2643M −21
Standard Specification for
Prefabricated Bituminous Geomembrane Used as Canal and
1
Ditch Liner (Exposed Type)
This standard is issued under the fixed designation D2643/D2643M; 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 (Xenon-Arc Method)
D4833/D4833M Test Method for Index Puncture Resistance
1.1 This specification covers prefabricated bituminous
of Geomembranes and Related Products
geomembranes intended to provide a continuous, exposed
D5147/D5147M Test Methods for Sampling and Testing
lining for canals and ditches.
Modified Bituminous Sheet Material
1.2 The values stated in either SI units or inch-pound units
D5199 Test Method for Measuring the Nominal Thickness
are to be regarded separately as standard. The values stated in
of Geosynthetics
each system are not necessarily exact equivalents; therefore, to
D5261 Test Method for Measuring Mass per Unit Area of
ensure conformance with the standard, each system shall be
Geotextiles
used independently of the other, and values from the two
D5884/D5884M Test Method for Determining Tearing
systems shall not be combined.
Strength of Internally Reinforced Geomembranes
1.3 This standard does not purport to address all of the D6455 Guide for the Selection of Test Methods for Prefab-
safety concerns, if any, associated with its use. It is the
ricated Bituminous Geomembranes (PBGMs)
responsibility of the user of this standard to establish appro- D7275 Test Method for Tensile Properties of Bituminous
priate safety, health, and environmental practices and deter-
Geomembranes (BGMs)
mine the applicability of regulatory limitations prior to use. E96/E96M Test Methods for Water Vapor Transmission of
1.4 This international standard was developed in accor-
Materials
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3. Terminology
Development of International Standards, Guides and Recom-
3.1 Definitions—For definitions of terms related to
mendations issued by the World Trade Organization Technical
geosynthetics, refer to Terminology D4439.
Barriers to Trade (TBT) Committee.
3.2 Definitions of Terms Specific to This Standard:
2. Referenced Documents 3.2.1 mineral stabilizer, n—a fine, water-insoluble inorganic
material, used as a filler material in the bitumen of a prefab-
2
2.1 ASTM Standards:
ricated bituminous geomembrane.
D1204 Test Method for Linear Dimensional Changes of
3.2.2 prefabricated bituminous geomembrane, n—a mate-
Nonrigid Thermoplastic Sheeting or Film at Elevated
rial fabricated in a plant and consisting principally of a
Temperature
geotextile saturated and coated with an oxidized or an elasto-
D4354 Practice for Sampling of Geosynthetics and Rolled
meric modified bitumen blend incorporating a filler.
Erosion Control Products (RECPs) for Testing
D4439 Terminology for Geosynthetics
3.2.3 selvage, n—the edge portion of a prefabricated bitu-
D4798/D4798M Practice for Accelerated Weathering Test
minous geomembrane that is parallel to the machine direction.
Conditions and Procedures for Bituminous Materials
4. Classifications
4.1 Prefabricated bituminous geomembranes covered by
1
This specification is under the jurisdiction of ASTM Committee D35 on
thisspecificationshallbeclassifiedasTypeI,TypeII,andType
Geosynthetics and is the direct responsibility of Subcommittee D35.06 on Geosyn-
thetic Specifications.
III. Distinction between those types is related to the require-
Current edition approved Sept. 1, 2021. Published September 2021. Originally
ments found in Table 1.
approved in 1967. Last previous edition approved in 2019 as D2643/D2643M – 08
(2019). DOI: 10.1520/D2643_D2643M-21.
4.2 Prefabricated bituminous geomembranes covered by
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
this specification, regardless of their type indicated in 4.1, shall
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
also be classified using the following grades, essentially
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. governed by their minimal installation temperature:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2643/D2643M−21
TABLE 1 Requirements for Bituminous Geomembranes Used as Exposed Linin
...

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: D2643/D2643M − 08 (Reapproved 2019) D2643/D2643M − 21
Standard Specification for
Prefabricated Bituminous Geomembrane Used as Canal and
1
Ditch Liner (Exposed Type)
This standard is issued under the fixed designation D2643/D2643M; 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 specification covers prefabricated bituminous geomembranes intended to provide a continuous, exposed lining for canals
and ditches.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other, and values from the two systems shall not be combined.
1.3 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.
1.4 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:
D1204 Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products (RECPs) for Testing
D4439 Terminology for Geosynthetics
D4798/D4798M Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc
Method)
D4833/D4833M Test Method for Index Puncture Resistance of Geomembranes and Related Products
D5147/D5147M Test Methods for Sampling and Testing Modified Bituminous Sheet Material
D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics
D5261 Test Method for Measuring Mass per Unit Area of Geotextiles
D5884D5884/D5884M Test Method for Determining Tearing Strength of Internally Reinforced Geomembranes
D6455 Guide for the Selection of Test Methods for Prefabricated Bituminous Geomembranes (PBGMs)
D7275 Test Method for Tensile Properties of Bituminous Geomembranes (BGMs)
E96/E96M Test Methods for Water Vapor Transmission of Materials
1
This specification is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.06 on Geosynthetic
Specifications.
Current edition approved Feb. 15, 2019Sept. 1, 2021. Published February 2019September 2021. Originally approved in 1967. Last previous edition approved in 20132019
ɛ1
as D2643/D2643M – 08 (2013)(2019). . DOI: 10.1520/D2643_D2643M-08R19.10.1520/D2643_D2643M-21.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2643/D2643M − 21
3. Terminology
3.1 Definitions—For definitions of terms related to geosynthetics, refer to Terminology D4439.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 mineral stabilizer, n—a fine, water-insoluble inorganic material, used as a filler material in the bitumen of a prefabricated
bituminous geomembrane.
3.2.2 prefabricated bituminous geomembrane, n—a material fabricated in a plant and consisting principally of a geotextile
saturated and coated with an oxidized or an elastomeric modified bitumen blend incorporating a filler.
3.2.2 mineral stabilizer, n—a fine, water-insoluble inorganic material, used as a filler material in the bitumen of a prefabricated
bituminous geomembrane.
3.2.3 selvage, n—the edge portion of a prefabricated bituminous geomembrane that is parallel to the machine direction.
4. Classifications
4.1 Prefabricated bituminous geomembranes covered by this specification shall be classified as Type I, Type II, and Type III.
Distin
...

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