ASTM D8051/D8051M-16(2023)
(Specification)Standard Specification for Wax-Modified Asphalt Used in Roofing
Standard Specification for Wax-Modified Asphalt Used in Roofing
ABSTRACT
This specification establishes the manufacturing process and physical requirements for wax-modified asphaltic products intended for built-up roof construction, construction of bituminous vapor retarder systems, adhering fleece-backed single-ply roof membranes, and adhering insulation boards used in various types of roof systems. The base asphalt shall be prepared from lightly oxidized petroleum asphalt, and the wax-modified asphalt shall incorporate one or more high melt-point synthetic waxes. Furthermore, the products shall be homogeneous and free of water.
SCOPE
1.1 This specification covers wax-modified asphaltic products intended for use in built-up roof construction, construction of bituminous vapor retarder systems, adhering fleece-backed single-ply roof membranes, and adhering insulation boards used in various types of roof systems. The specification is intended for general classification purposes only, and does not imply restrictions on roofing system design, such as the slope at which this asphalt may be used.
1.2 These products have lower application temperatures compared to products specified by Specification D312/D312M.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the 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
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: D8051/D8051M − 16 (Reapproved 2023)
Standard Specification for
Wax-Modified Asphalt Used in Roofing
This standard is issued under the fixed designation D8051/D8051M; 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 D36/D36M Test Method for Softening Point of Bitumen
(Ring-and-Ball Apparatus)
1.1 This specification covers wax-modified asphaltic prod-
D92 Test Method for Flash and Fire Points by Cleveland
ucts intended for use in built-up roof construction, construction
Open Cup Tester
of bituminous vapor retarder systems, adhering fleece-backed
D113 Test Method for Ductility of Asphalt Materials
single-ply roof membranes, and adhering insulation boards
D140/D140M Practice for Sampling Asphalt Materials
used in various types of roof systems. The specification is
D312/D312M Specification for Asphalt Used in Roofing
intended for general classification purposes only, and does not
D1079 Terminology Relating to Roofing and Waterproofing
imply restrictions on roofing system design, such as the slope
D2042 Test Method for Solubility of Asphalt Materials in
at which this asphalt may be used.
Trichloroethylene or Toluene
1.2 These products have lower application temperatures
D3461 Test Method for Softening Point of Asphalt and Pitch
compared to products specified by Specification D312/D312M.
(Mettler Cup-and-Ball Method)
1.3 The values stated in either SI units or inch-pound units D4402/D4402M Test Method for Viscosity Determination of
Asphalt at Elevated Temperatures Using a Rotational
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each Viscometer
D7553 Test Method for Solubility of Asphalt Materials in
system shall be used independently of the other. Combining
values from the two systems may result in nonconformance N-Propyl Bromide
with the standard.
3. Terminology
1.4 This standard does not purport to address all of the
3.1 For definitions of terms used in this specification, refer
safety concerns, if any, associated with its use. It is the
to Terminology D1079.
responsibility of the user of this standard to establish appro-
3.2 Definitions:
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. 3.2.1 high-melt-point synthetic wax, n—synthetic wax with
1.5 This international standard was developed in accor- a melt point greater than 90 °C, for example polyethylene wax,
dance with internationally recognized principles on standard- oxidized polyethylene wax, Fischer-Tropsch wax, and ethylene
ization established in the Decision on Principles for the bis stearamide wax.
Development of International Standards, Guides and Recom-
3.2.2 lightly oxidized asphalt, n—having a softening point
mendations issued by the World Trade Organization Technical
and penetration range as defined in Table 1.
Barriers to Trade (TBT) Committee.
3.2.3 wax-modified asphalt (WM), n—a product made by
modifying a lightly oxidized asphalt with a high-melt-point
2. Referenced Documents
synthetic wax.
2.1 ASTM Standards:
D5/D5M Test Method for Penetration of Bituminous Mate- 4. Materials and Manufacture
rials
4.1 The base asphalt shall be prepared from lightly oxidized
petroleum asphalt.
This specification is under the jurisdiction of ASTM Committee D08 on
4.2 The wax-modified asphalt shall incorporate one or more
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.03
on Surfacing and Bituminous Materials for Membrane Waterproofing and Built-up high-melt-point synthetic waxes in order to meet the require-
Roofing.
ments of this specification.
Current edition approved June 1, 2023. Published June 2023. Originally
approved in 2016. Last previous edition approved in 2016 as D8051/D8051M – 16.
5. Physical Properties
DOI: 10.1520/D8051_D8051M-16R23.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5.1 The products shall be homogeneous and free of water.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.2 The products of each type shall conform to
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