ASTM D6084-06
(Test Method)Standard Test Method for Elastic Recovery of Bituminous Materials by Ductilometer
Standard Test Method for Elastic Recovery of Bituminous Materials by Ductilometer
SIGNIFICANCE AND USE
This test method is useful in confirming that a material has been added to the asphalt to provide a significant elastomeric characteristic. It does not necessarily identify the type or amount of material added.
SCOPE
1.1 This test method covers the elastic recovery of a bituminous material measured by the recoverable strain determined after severing an elongated briquet specimen of the material of the form described in . The specimens are pulled to a specified distance at a specified speed and at a specified temperature. Unless otherwise specified, the test shall be made at a temperature of 25 0.5°C (77 0.9°F) and with a speed of 5 cm/min 5 %.
1.2 The values stated in SI units are to be regarded as the standard. Values in parentheses in inch-pound units are provided for informational purposes only.
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: D6084 − 06
StandardTest Method for
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Elastic Recovery of Bituminous Materials by Ductilometer
This standard is issued under the fixed designation D6084; 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 3. Significance and Use
1.1 This test method covers the elastic recovery of a 3.1 This test method is useful in confirming that a material
bituminous material measured by the recoverable strain deter- has been added to the asphalt to provide a significant elasto-
mined after severing an elongated briquet specimen of the meric characteristic. It does not necessarily identify the type or
materialoftheformdescribedin4.1.Thespecimensarepulled amount of material added.
to a specified distance at a specified speed and at a specified
4. Apparatus
temperature. Unless otherwise specified, the test shall be made
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at a temperature of 25 6 0.5°C (77 6 0.9°F) and with a speed
4.1 Mold —The mold shall be similar in design to that
of 5 cm/min 65%.
shown in Fig. 1. The mold shall be made of brass, 10.0 6 0.1
mm thick, the endsb andb' being known as clips, and the parts
1.2 The values stated in SI units are to be regarded as the
a and a' as sides of the mold, with a brass base plate that is
standard. Values in parentheses in inch-pound units are pro-
larger than the assembled mold. The dimensions of the
vided for informational purposes only.
assembled mold shall be as shown in Fig. 1 with the permis-
1.3 This standard does not purport to address all of the
sible variations indicated. (See Note 1.)
safety concerns, if any, associated with its use. It is the
4.2 Water Bath for Conditioning Specimen—Maintain the
responsibility of the user of this standard to establish appro-
water bath at the specified test temperature, varying not more
priate safety and health practices and determine the applica-
than 0.1°C (0.18°F) from this temperature. The volume of
bility of regulatory limitations prior to use.
water shall be not less than 10 L, and the specimen immersed
to a depth of not less than 10 cm and supported on a perforated
2. Referenced Documents
2 shelf not less than 5 cm from the bottom of the bath.
2.1 ASTM Standards:
4.3 Testing Machine—For elongating the briquet of bitumi-
C670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials nousmaterial,anyapparatusmaybeusedthatissoconstructed
that the specimen will be continuously immersed in water,
D5 Test Method for Penetration of Bituminous Materials
D113 Test Method for Ductility of Bituminous Materials while the two clips are pulled apart at a uniform speed, as
specified, without undue vibration. A variation of 65% is
E1 Specification for ASTM Liquid-in-Glass Thermometers
permissible. The water in the tank of the testing machine shall
E11 Specification for Woven Wire Test Sieve Cloth and Test
cover the specimen both above and below it by at least 2.5 cm
Sieves
and shall be maintained within 60.5°C (0.9°F) of the test
E77 Test Method for Inspection and Verification of Ther-
mometers temperature. The testing machine shall incorporate a means by
which the elongation can be measured in centimetres. (See
E220 Test Method for Calibration of Thermocouples By
Comparison Techniques Note 2.)
E644 Test Methods for Testing Industrial Resistance Ther-
4.4 Thermometer—Athermometer having a range shown as
mometers
follows, conforming to the requirements in accordance with
Specification E1, and calibrated in accordance with Test
Method E77. (See Note 3.)An equivalent thermometric device
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This test method is under the jurisdiction of ASTM Committee D04 on Road
that has been calibrated in accordance with Test Method E220
and Paving Materials and is the direct responsibility of Subcommittee D04.44 on
or Test Methods E644 may be used.
Rheological Tests.
Current edition approved Dec. 15, 2006. Published December 2006. Originally
approved in 1997. Last previous edition approved in 2004 as D6084 - 04. DOI:
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10.1520/D6084-06. The sole source of supply of the apparatus known to the committee at this time
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or is Humboldt Manufacturing Company, 7300 W.AgatiteAve., Chicago, IL60656. If
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM you are aware of alternative suppliers, please provide this information to ASTM
Standards volume information, refer to the standard’s Document Summary page on Headquarters.Your comments will receive careful consideration at a meeting of the
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the ASTM website. responsible technical committee , which you may attend.
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