ASTM D6390-05(2010)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D6390–05 (Reapproved 2010)
Standard Test Method for
Determination of Draindown Characteristics in
Uncompacted Asphalt Mixtures
This standard is issued under the fixed designation D6390; 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 3.1.1 draindown—for the purpose of this test method,
draindown is considered to be that portion of material which
1.1 This test method covers the determination of the amount
separates itself from the sample as a whole and is deposited
of draindown in an uncompacted asphalt mixture sample when
outside the wire basket during the test. The material which
thesampleisheldatelevatedtemperaturescomparabletothose
drains may be composed of either asphalt binder or a combi-
encountered during the production, storage, transport, and
nation of asphalt binder, additives, or fine aggregate.
placement of the mixture. The test is particularly applicable to
mixtures such as porous asphalt (open-graded friction course)
4. Summary of Test Method
and stone matrix asphalt (SMA)
4.1 Asample of the asphalt mixture to be tested is prepared
1.2 The values stated in SI units are to be regarded as the
in the laboratory or obtained from field production.The sample
standard.
is placed in a wire basket which is positioned on a plate or
1.3 This standard does not purport to address all of the
other suitable container of known mass. The sample, basket,
safety concerns, if any, associated with its use. It is the
and plate or container are placed in a force draft oven for one
responsibility of the user of this standard to establish appro-
hour at a pre-selected temperature.At the end of one hour, the
priate safety and health practices and determine the applica-
basket containing the sample is removed from the oven along
bility of regulatory limitations prior to use.
with the plate or container and the mass of the plate or
2. Referenced Documents containercontainingthedrainedmaterial,ifany,isdetermined.
The amount of draindown is then calculated.
2.1 ASTM Standards:
C670 Practice for Preparing Precision and Bias Statements
5. Significance and Use
for Test Methods for Construction Materials
5.1 This test method can be used to determine whether the
D979 Practice for Sampling Bituminous Paving Mixtures
amount of draindown measured for a given asphalt mixture is
D4753 Guide for Evaluating, Selecting, and Specifying
within specified acceptable levels. The test provides an evalu-
Balances and Standard Masses for Use in Soil, Rock, and
ation of the draindown potential of an asphalt mixture during
Construction Materials Testing
mixture design and/or during field production. This test is
D6926 Practice for Preparation of Bituminous Specimens
primarily used for mixtures with high coarse aggregate content
Using Marshall Apparatus
such as porous asphalt (open-graded friction course) and stone
E11 SpecificationforWovenWireTestSieveClothandTest
matrix asphalt (SMA).
Sieves
6. Apparatus
3. Terminology
6.1 Forced Draft Oven, capable of maintaining the tempera-
3.1 Definitions:
ture in a range from 120 to 175°C and the set temperature to
within 62°C.
This test method is under the jurisdiction of ASTM Committee D04 on Road
6.2 Plates, or other suitable containers of appropriate size.
and Paving Materials and is the direct responsibility of Subcommittee D04.25 on
The plates or containers used shall be of appropriate durability
Analysis of Bituminous Mixtures.
to withstand the oven temperatures. Cake pans or pie tins are
Current edition approved July 1, 2010. Published November 2010. Originally
approved in 1999. Last previous edition approved in 2005 as D6390 – 05. DOI:
examples of suitable types of containers.
10.1520/D6390-05R10.
6.3 Standard basket meeting the dimensions shown in Fig.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1.The basket shall be constructed using standard 6.3 mm sieve
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
cloth as specified in Specification E11.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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D6390–05 (2010)
aggregate fractions shall be combined such that the resulting
aggregateblendhasthesamegradationasthejob-mixformula.
Place the aggregate samples in an oven and heat to a tempera-
ture not to exceed the temperature established in 7.1.1.
7.1.5 Heat the asphalt binder to the temperature established
in 7.1.1.
7.1.6 Place the heated aggregate in the mixing bowl. Add
any stabilizers (see Note 2) and thoroughly mix the dry
components. Form a crater in the aggregate blend and add the
required amount of asphalt binder. The amount of asphalt
binder shall be such that the final sample has the same asphalt
content as the job-mix formula. At this point, the temperature
of the aggregate and asphalt binder shall be at the temperature
determined in 7.1.1. Mix the aggregate (and stabilizer if any)
and asphalt binder quickly until the aggregate is thoroughly
coated.
7.2 Plant Produced Samples:
7.2.1 Number of Samples—For plant produced samples,
triplicate samples shall be tested at the plant production
temperature.
7.2.2 Samples shall be obtained in accordance with Practice
D979 during plant production by sampling the mixture at any
appropriate location such as the trucks prior to the mixture
leaving the plant. Samples obtained during actual production
shall be reduced to the proper test sample size.
NOTE 1—When using the test as part of the mixture design procedure,
the test should be performed at two temperatures in order to determine the
potential effect that plant temperature variation may have on the mixture
during production. When the test is used in the field during producti
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