ASTM D4013-09

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Designation: D4013 − 09
StandardPractice for
Preparation of Test Specimens of Bituminous Mixtures by
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Means of Gyratory Shear Compactor
This standard is issued under the fixed designation D4013; 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 5. Apparatus
1.1 Thispracticecoversthepreparationof4-in.(101.6mm)
5.1 Gyratory-Shear Molding Press:
diameter test specimens of bituminous mixtures containing
5.1.1 Press Platen, which is hardened and ground flat.
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− ⁄8-in. (–22.4-mm) aggregate.
5.1.2 Hydraulic Compaction Ram, with nonrotating metal
face as shown in Fig. 1 and Fig. 2. The ram face is hardened
1.2 The values stated in inch-pound units are to be regarded
and ground flat. The ram varies the vertical opening between
as standard. The values given in parentheses are mathematical
theramfaceandthepressplatenfrom4.5in.(114.3mm)down
conversions to SI units that are provided for information only
to less than 1.0 in. (25.4 mm).
and are not considered standard.
5.1.3 Low-Pressure Gauge, with automatic valve for high
1.3 This standard does not purport to address all of the
pressure protection and with a capability of indicating within
safety concerns, if any, associated with its use. It is the
62 kPa (60.3 psi) the following: (See Note 1):
responsibility of the user of this standard to establish appro-
5.1.3.1 Pregyration Stress—31.8 psi (219 kPa) , which is
priate safety and health practices and determine the applica-
400 lbf (1779 N) total for diameter specimens.
bility of regulatory limitations prior to use.
5.1.3.2 End Point Stress—95.3 psi (657 kPa), which is 1200
lbf (5338 N) total for 4-in. (101.6-mm) diameter specimens.
2. Referenced Documents
5.1.4 High-Pressure Gauge, with capability of indicating
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2.1 ASTM Standards:
within 616 psi (6110 kPa) the following: (See Note 1):
E4Practices for Force Verification of Testing Machines
5.1.4.1 Consolidation Stress—1590 psi (11.0 MPa), which
is 20 000 lbf (89 kN) total for 4-in. (101.6-mm) diameter
3. Summary of Practice
specimens.
3.1 This practice employs gyratory-shearing action of the
5.1.5 Tilt Mechanism, to cock the mold 6° while the
mixture at low initial pressures, allowing orientation of the
specimen is under pregyration stress (see 5.1.3.1). In reverse
aggregate particles to aid compaction, and then nongyratory
manner, it squares the mold axially against the press platen,
compression at high pressure for consolidation and shaping.
with a smooth quick motion.
5.1.6 Gyration Mechanism,tomovethemoldabouttheram
4. Significance and Use
face 12° total angle and produce gyratory shear compaction of
4.1 The specimens are compacted to simulate the density,
thespecimen.Anelectricmotordrivesthegyrationmechanism
aggregatedegradation,andstructuralcharacteristicspossiblein
at approximately 1 s/cycle.
the actual road surface when proper construction procedure is
5.1.7 Count Mechanism, to shut the gyration motor off after
used in the placement of the material. The specimens may be
threecompletecyclesandtostopitintheloadingpositionwith
used to determine stability, density, strength, water
an electric brake.
susceptibility, etc., of bituminous mixtures by specified test
5.1.8 Hydraulic Hand Pump, which meters 0.020-in.
methods.
(0.508-mm) ram movement, with a smooth quick motion.
5.2 Gyratory Mold—Rigid metal mold as shown in Fig. 1
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This practice is under the jurisdiction of ASTM Committee D04 on Road and
and Fig. 3, with a concentric hardened ring for manipulating
Paving Materials and is the direct responsibility of Subcommittee D04.20 on
gyratory action, and hardened to at least 55 HRC honed and
Mechanical Tests of Bituminous Mixtures.
hard-plated interior.
Current edition approved July 1, 2009. Published August 2009. Originally
approved in 1981. Last previous edition approved in 2005 as D4013–98 (2005).
5.3 Base Plate—Solid metal plate as shown in Fig. 1 and
DOI: 10.1520/D4013-09.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Fig. 2. Top and bottom surfaces are hardened and ground flat.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
( See Table 1 for a comparison of dimensions.)
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 5.4 Wide-Mouth Funnel, with mouth that fits inside mold.
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D4013 − 09
FIG. 1 Mold Assembly
FIG. 2 Ram Face and Base Plate
FIG. 3 Mold
5.9 Measuring Device—A mic
...