ASTM D7564/D7564M-16
(Practice)Standard Practice for Construction of Asphalt-Rubber Cape Seal
Standard Practice for Construction of Asphalt-Rubber Cape Seal
SIGNIFICANCE AND USE
3.1 The procedure described in this practice is used to design and construct an asphalt-rubber cape seal that will provide a wearing course when subjected to low to medium traffic volumes and where the pavement distress is due to block-type cracking resulting from pavement aging or reflective cracking only (not where there are clear indications of fatigue cracking due to repeated heavy axle loads).
Note 2: Block cracking is defined in Practice D6433. See Appendix X1 for an example of block cracking due to aging.
SCOPE
1.1 This practice covers asphalt-rubber cape seal, which is defined as the application of an asphalt-rubber seal coat placed onto an existing pavement surface, followed by the application of a conventional Type II or III slurry seal.
Note 1: An asphalt-rubber seal coat is also known as a stress absorbing membrane (SAM) which consists of an asphalt-rubber membrane seal followed by the application of precoated aggregate chips.
1.2 An asphalt-rubber cape seal is commonly used to extend the service life of low to medium trafficked and moderately distressed asphalt-surfaced pavements. The existing pavement condition can be used to determine the application rates for the asphalt-rubber binder and aggregate as well as the aggregate gradation. Pavements in relatively poor condition will require a coarser aggregate with a higher binder application rate.
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 non-conformance 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 and health practices and determine the applicability of regulatory limitations prior to use.
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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: D7564/D7564M − 16
Standard Practice for
1
Construction of Asphalt-Rubber Cape Seal
This standard is issued under the fixed designation D7564/D7564M; 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* 2. Referenced Documents
2
1.1 This practice covers asphalt-rubber cape seal, which is 2.1 ASTM Standards:
defined as the application of an asphalt-rubber seal coat placed C29/C29M Test Method for Bulk Density (“Unit Weight”)
onto an existing pavement surface, followed by the application and Voids in Aggregate
of a conventional Type II or III slurry seal. C117 Test Method for Materials Finer than 75-μm (No. 200)
Sieve in Mineral Aggregates by Washing
NOTE 1—An asphalt-rubber seal coat is also known as a stress
C127 Test Method for Relative Density (Specific Gravity)
absorbing membrane (SAM) which consists of an asphalt-rubber mem-
and Absorption of Coarse Aggregate
brane seal followed by the application of precoated aggregate chips.
C128 Test Method for Relative Density (Specific Gravity)
1.2 An asphalt-rubber cape seal is commonly used to extend
and Absorption of Fine Aggregate
the service life of low to medium trafficked and moderately
C131 Test Method for Resistance to Degradation of Small-
distressed asphalt-surfaced pavements. The existing pavement
Size Coarse Aggregate by Abrasion and Impact in the Los
condition can be used to determine the application rates for the
Angeles Machine
asphalt-rubber binder and aggregate as well as the aggregate
C136 Test Method for Sieve Analysis of Fine and Coarse
gradation. Pavements in relatively poor condition will require
Aggregates
a coarser aggregate with a higher binder application rate.
D946 Specification for Penetration-Graded Asphalt Binder
1.3 The values stated in either SI units or inch-pound units
for Use in Pavement Construction
are to be regarded separately as standard. The values stated in
D1139 Specification for Aggregate for Single or Multiple
each system may not be exact equivalents; therefore, each
Asphalt Surface Treatments
system shall be used independently of the other. Combining
D2196 Test Methods for Rheological Properties of Non-
values from the two systems may result in non-conformance
Newtonian Materials by Rotational Viscometer
with the standard.
D2419 Test Method for Sand Equivalent Value of Soils and
1.4 This standard does not purport to address all of the Fine Aggregate
safety concerns, if any, associated with its use. It is the
D3381 Specification for Viscosity-Graded Asphalt Binder
responsibility of the user of this standard to establish appro- for Use in Pavement Construction
priate safety, health, and environmental practices and deter-
D3910 Practices for Design, Testing, and Construction of
mine the applicability of regulatory limitations prior to use. Slurry Seal
1.5 This international standard was developed in accor-
D4791 Test Method for Flat Particles, Elongated Particles,
dance with internationally recognized principles on standard- or Flat and Elongated Particles in Coarse Aggregate
ization established in the Decision on Principles for the
D5360 Practice for Design and Construction of Bituminous
Development of International Standards, Guides and Recom- Surface Treatments
mendations issued by the World Trade Organization Technical
D5821 Test Method for Determining the Percentage of
Barriers to Trade (TBT) Committee. Fractured Particles in Coarse Aggregate
D6114 Specification for Asphalt-Rubber Binder
1
This practice is under the jurisdiction of ASTM Committee D04 on Road and
Paving Materials and is the direct responsibility of Subcommittee D04.24 on
2
Asphalt Surface Treatments. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2016. Published May 2016. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2009. Last previous edition approved in 2015 as D7564/ Standards volume information, refer to the standard’s Document Summary page on
D7564M – 09 (2015). DOI: 10.1520/D7564_D7564M-16. 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
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D7564/D7564M − 16
D6373 Specification for Performance-Graded Asphalt Test Method C131. Crushed gravel (if used) must have a
...
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: D7564/D7564M − 09 (Reapproved 2015) D7564/D7564M − 16
Standard Practice for
1
Construction of Asphalt-Rubber Cape Seal
This standard is issued under the fixed designation D7564/D7564M; 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 Scope*
1.1 This practice covers asphalt-rubber cape seal, which is defined as the application of an asphalt-rubber seal coat placed onto
an existing pavement surface, followed by the application of a conventional Type II or III slurry seal.
NOTE 1—An asphalt-rubber seal coat is also known as a stress absorbing membrane (SAM) which consists of an asphalt-rubber membrane seal
followed by the application of precoated aggregate chips.
1.2 An asphalt-rubber cape seal is commonly used to extend the service life of low to medium trafficked and moderately
distressed asphalt-surfaced pavements. The existing pavement condition can be used to determine the application rates for the
asphalt-rubber binder and aggregate as well as the aggregate gradation. Pavements in relatively poor condition will require a
coarser aggregate with a higher binder application rate.
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 non-conformance 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C29/C29M Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate
C117 Test Method for Materials Finer than 75-μm (No. 200) Sieve in Mineral Aggregates by Washing
C127 Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate
C128 Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate
C131 Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles
Machine
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
D946 Specification for Penetration-Graded Asphalt Cement for Use in Pavement Construction
D1139 Specification for Aggregate for Single or Multiple Bituminous Surface Treatments
D2196 Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational Viscometer
D2419 Test Method for Sand Equivalent Value of Soils and Fine Aggregate
D3381 Specification for Viscosity-Graded Asphalt Cement for Use in Pavement Construction
D3910 Practices for Design, Testing, and Construction of Slurry Seal
D4791 Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate
D5360 Practice for Design and Construction of Bituminous Surface Treatments
D5821 Test Method for Determining the Percentage of Fractured Particles in Coarse Aggregate
D6114 Specification for Asphalt-Rubber Binder
D6373 Specification for Performance Graded Asphalt Binder
D6433 Practice for Roads and Parking Lots Pavement Condition Index Surveys
1
This practice is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.24 on Asphalt
Surface Treatments.
Current edition approved Jan. 1, 2015May 1, 2016. Published February 2015May 2016. Originally approved in 2009. Last previous edition approved in 20092015 as
D7564/D7564M – 09.D7564/D7564M – 09 (2015). DOI: 10.1520/D7564_D7564M-09R15.10.1520/D7564_D7564M-16.
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 ----------------------
D7564/D7564M − 16
3. Significance and Use
3.1 The procedure described in this practice is used to design
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