Standard Practice for Open-Graded Friction Course (OGFC) Mix Design

SIGNIFICANCE AND USE
The procedure described in this practice is used to design OGFC mixtures that will provide good performance in terms of permeability (tending to reduce hydroplaning and potential for skidding), and durability when subjected to high volumes of traffic.
SCOPE
1.1 This practice covers the mix design of open-graded friction course (OGFC) using the superpave gyratory compactor (SGC) or other suitable forms of compaction. The OGFC mix design is based on the volumetric properties of the mix in terms of air voids, and the presence of stone-on-stone contact. Information found in Guide D6932 should be reviewed before starting the mix design. Where applicable, Specification D3666 should be applied as a minimum for agencies testing and inspecting road and paving materials.
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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Historical
Publication Date
31-Jul-2008
Current Stage
Ref Project

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ASTM D7064/D7064M-08e1 - Standard Practice for Open-Graded Friction Course (OGFC) Mix Design
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Designation: D7064/D7064M − 08
StandardPractice for
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Open-Graded Friction Course (OGFC) Mix Design
This standard is issued under the fixed designation D7064/D7064M; 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.
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´ NOTE—Updated X2.2.1 and X2.3.1.6 editorially in December 2010.
1. Scope Size CoarseAggregate byAbrasion and Impact in the Los
Angeles Machine
1.1 This practice covers the mix design of open-graded
C136 Test Method for Sieve Analysis of Fine and Coarse
friction course (OGFC) using the superpave gyratory compac-
Aggregates
tor (SGC) or other suitable forms of compaction. The OGFC
C1252 Test Methods for Uncompacted Void Content of Fine
mix design is based on the volumetric properties of the mix in
Aggregate (as Influenced by Particle Shape, Surface
terms of air voids, and the presence of stone-on-stone contact.
Texture, and Grading)
Information found in Guide D6932 should be reviewed before
D946 Specification for Penetration-Graded Asphalt Cement
startingthemixdesign.Whereapplicable,SpecificationD3666
for Use in Pavement Construction
should be applied as a minimum for agencies testing and
D2041 Test Method for Theoretical Maximum Specific
inspecting road and paving materials.
Gravity and Density of Bituminous Paving Mixtures
1.2 The values stated in either SI units or inch-pound units
D2419 Test Method for Sand Equivalent Value of Soils and
are to be regarded separately as standard. The values stated in
Fine Aggregate
each system may not be exact equivalents; therefore, each
D3203 Test Method for Percent Air Voids in Compacted
system shall be used independently of the other. Combining
Dense and Open Bituminous Paving Mixtures
values from the two systems may result in non-conformance
D3381 Specification for Viscosity-Graded Asphalt Cement
with the standard.
for Use in Pavement Construction
1.3 This standard does not purport to address all of the
D3666 Specification for Minimum Requirements for Agen-
safety concerns, if any, associated with its use. It is the
cies Testing and Inspecting Road and Paving Materials
responsibility of the user of this standard to establish appro-
D4791 Test Method for Flat Particles, Elongated Particles,
priate safety and health practices and determine the applica-
or Flat and Elongated Particles in Coarse Aggregate
bility of regulatory limitations prior to use.
D5821 Test Method for Determining the Percentage of
Fractured Particles in Coarse Aggregate
2. Referenced Documents
D6114 Specification for Asphalt-Rubber Binder
2
2.1 ASTM Standards:
D6373 Specification for Performance Graded Asphalt
C29/C29M Test Method for Bulk Density (“Unit Weight”)
Binder
and Voids in Aggregate
D6390 Test Method for Determination of Draindown Char-
C127 Test Method for Density, Relative Density (Specific
acteristics in Uncompacted Asphalt Mixtures
Gravity), and Absorption of Coarse Aggregate
D6752 Test Method for Bulk Specific Gravity and Density
C131 Test Method for Resistance to Degradation of Small-
of Compacted Bituminous Mixtures Using Automatic
Vacuum Sealing Method
1
D6857 Test Method for Maximum Specific Gravity and
This practice is under the jurisdiction of ASTM Committee D04 on Road and
Paving Materials and is the direct responsibility of Subcommittee D04.23 on
Density of Bituminous Paving Mixtures Using Automatic
Plant-Mixed Bituminous Surfaces and Bases.
Vacuum Sealing Method
Current edition approved Aug. 1, 2008. Published August 2008. Originally
D6925 Test Method for Preparation and Determination of
approved in 2004. Last previous edition approved in 2004 as D7064 – 04. DOI:
10.1520/D7064_D7064M-08E01. the Relative Density of Hot Mix Asphalt (HMA) Speci-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
mens by Means of the Superpave Gyratory Compactor
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
D6926 Practice for Preparation of Bituminous Specimens
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Using Marshall Apparatus
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D7064/D7064M − 08
D6932 Guide for Materials and Construction of Open- and 6.5 % (generally higher for asphalt-rubber Specification
Graded Friction Course Plant Mixtures D6114) is selected and at least two specimens are compacted
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using 50 gyrations of the Superpave Gyratory Compactor
2.2 AASHTO Standards:
R30 Mixture Conditioning of Hot Mix Asphalt (HMA) (SGC) (Test Method D6925)
...

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