ASTM D7654/D7654M-10
(Specification)Standard Specification for Asphalt Used in Roofing Measured by Dynamic Shear Rheometer
Standard Specification for Asphalt Used in Roofing Measured by Dynamic Shear Rheometer
SCOPE
1.1 This specification covers two types of asphalt intended for use in built-up roof construction, construction of some modified bitumen systems, construction of bituminous vapor retarder systems, and for 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 the slope at which an asphalt must be used.
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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:D7654/D7654M −10
Standard Specification for
Asphalt Used in Roofing Measured by Dynamic Shear
Rheometer
This standard is issued under the fixed designation D7654/D7654M; 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 erties of Asphalt Binder Using a Dynamic Shear Rheom-
eter
1.1 This specification covers two types of asphalt intended
for use in built-up roof construction, construction of some
3. Terminology
modified bitumen systems, construction of bituminous vapor
3.1 For definition of terms used in this specification, refer to
retarder systems, and for adhering insulation boards used in
Terminology D1079.
various types of roof systems. The specification is intended for
general classification purposes only and does not imply restric-
3.2 Definitions:
tions on the slope at which an asphalt must be used.
3.3 Viscosity, Eta* @ 70°C [158°F], Pa.s
1.2 The values stated in either SI units or inch-pound units
3.3.1 Definition: Eta* = G* / Angular Velocity. Complex
are to be regarded separately as standard. The values stated in
dynamic shear viscosity is the ratio of the complex shear
each system may not be exact equivalents; therefore, each
modulus (G*) divided by the rate of shear in radians/second. In
system shall be used independently of the other. Combining
the SI, the unit of viscosity is in the pascal second (Pa.s).
values from the two systems may result in non-conformance
with the standard. 4. Classification
1.3 This standard does not purport to address all of the 4.1 Materials covered by this specification are of two types:
safety concerns, if any, associated with its use. It is the 4.1.1 Type III (VG).
responsibility of the user of this standard to establish appro- 4.1.2 Type IV (VG).
priate safety and health practices and determine the applica-
5. Materials and Manufacture
bility of regulatory limitations prior to use.
5.1 The asphalt shall be prepared from crude petroleum.
2. Referenced Documents
6. Physical Properties
2.1 ASTM Standards:
D5 Test Method for Penetration of Bituminous Materials
6.1 Asphalts shall be homogeneous and free of water.
D92 Test Method for Flash and Fire Points by Cleveland
6.2 Asphalts of each type must conform to the physical
Open Cup Tester
properties described in Table 1.
D140 Practice for Sampling Bituminous Materials
D1079 Terminology Relating to Roofing and Waterproofing
7. Sampling
D2042 Test Method for Solubility of Asphalt Materials in
7.1 Sample the material and determine the properties enu-
Trichloroethylene
merated in this specification in accordance with the following
D6510 Guide for Selection of Asphalt Used in Built-Up
methods:
Roofing Systems
7.1.1 Sampling—Practice D140.
D7175 Test Method for Determining the Rheological Prop-
7.1.2 Flash Point—Test Method D92.
7.1.3 Penetration—Test Method D5.
This specification is under the jurisdiction of ASTM Committee D08 on
7.1.4 Solubility—Test Method D2042.
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.03
7.1.5 Rheological Properties of Asphalt Binder Using a
on Surfacing and Bituminous Materials for Membrane Waterproofing and Built-up
Dynamic Shear Rheometer—Test Method D7175.
Roofing.
7.1.5.1 Handling Protocol:
Current edition approved Aug. 1, 2010. Published September 2010.
DOI:10.1520/D7654_D7654M-10.
(1) Heat samples to 190 6 5°C [375 6 10°F] for preparing
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
test specimen.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
(2) Hold samples under heat for a period of not more than
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 1.5 h.
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D7654/D7654M−10
TABLE 1 Physical Properties of Asphalt in Roofing
8.4 Anyjudgmentinaccordancewithstatements8.2and8.3
Property Type III (VG) Type IV (VG) would normally have an approximate 95 % probability of
Min Max Min Max
being correct, however the precision statistics obtained in this
Viscosity @ 70°C 6700 13 000
ILS must not be treated as exact mathematical quantities which
[158°F], Pa. s
Flash Point, °C [°F] 260 (500) 260 (500) are applicable to all circumstances and uses.The small number
Penetration, units:
of materials tested, and laboratories reporting results, guaran-
@ 0°C [32°F] 6 6
tees that there will be times when differences greater than
@ 25°C [77°F] 15 35 12 25
@ 46°C [115°F] 90 75
predicted by the ILS results will arise, sometimes with consid-
Solubility in 99 99
erably greater or smaller frequency than the 95 % probability
Trichloroethylene, %
limit would imply. The repeatability limit and the reproduc-
ibility limit should be considered as general guides, and the
associated probability of 95 % as only a rough indicator of
(3) Pour samples on plate to equilibrate at test temperature
what can be expected. See Table 2.
for 5 6 0.5 min.
...
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