ASTM D6934-04
(Test Method)Standard Test Method for Residue by Evaporation of Emulsified Asphalt
Standard Test Method for Residue by Evaporation of Emulsified Asphalt
SIGNIFICANCE AND USE
The test may be used to indicate compositional characteristics of emulsified asphalt. Evaporation residue may also be subjected to other characterization tests.
This test method for residue by evaporation tends to give an asphaltic residue lower in penetration and ductility than the distillation test method. Material may be accepted but shall not be rejected as failing to meet specifications containing requirements for determination of residue by distillation, on data obtained by evaporation. If residue from evaporation fails to meet the requirements for properties specified for residue from distillation, tests shall be rerun using the distillation test method.
SCOPE
1.1 This test method covers the quantitative determination of residue in emulsified asphalts composed principally of a semisolid or liquid asphaltic base, water, and an emulsifying agent.
1.2 This test method 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: D 6934 – 04
Standard Test Method for
Residue by Evaporation of Emulsified Asphalt
This standard is issued under the fixed designation D 6934; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Sample Conditioning for Testing
1.1 This test method covers the quantitative determination 5.1 All emulsified asphalts shall be properly stirred to
of residue in emulsified asphalts composed principally of a achieve homogeneity before testing.
semisolid or liquid asphaltic base, water, and an emulsifying 5.2 All emulsified asphalts with viscosity testing require-
agent. ments of 50°C shall be heated to 50 6 3°C in the original
1.2 This test method does not purport to address all of the sample container in a water bath or oven. The container should
safety concerns, if any, associated with its use. It is the be vented to relieve pressure. After the sample reaches 50 6
responsibility of the user of this standard to establish appro- 3°C, stir the sample to achieve homogeneity.
priate safety and health practices and determine the applica- 5.3 Emulsified asphalts with viscosity testing requirements
bility of regulatory limitations prior to use. of 25°C should be mixed or stirred at 25 6 3°C in the original
sample container to achieve homogeneity.
2. Referenced Documents
NOTE 1—Emulsified asphalts with viscosity testing requirements of
2.1 ASTM Standards:
25°C may be heated and stirred as specified in 5.2 if necessary. In the
E 11 Specification for Wire Cloth and Sieves for Testing
event the 5.2 method is used, the sample should be cooled to 25 6 3°C
Purposes
before testing.
3. Significance and Use 6. Apparatus
3.1 The test may be used to indicate compositional charac-
6.1 Beakers—lowform,1000-mLcapacity,madeofglassor
teristics of emulsified asphalt. Evaporation residue may also be metal.
subjected to other characterization tests.
6.2 GlassRods—withflame-polishedends,approximately6
3.2 This test method for residue by evaporation tends to mm in diameter and approximately 180 mm in length.
giveanasphalticresiduelowerinpenetrationandductilitythan 6.3 Balance—capable of weighing 500 g to within 0.1 g.
the distillation test method. Material may be accepted but shall
6.4 Oven—Capable of maintaining a temperature of 163 6
not be rejected as failing to meet specifications containing 3°C.
requirements for determination of residue by distillation, on
6.5 Sieve—A 76.2-mm diameter 300-µm sieve conforming
data obtained by evaporation. If residue from evaporation fails to Specification E 11.
to meet the requirements for properties specified for residue
7. Procedure A
from distillation, tests shall be rerun using the distillation test
method. 7.1 Use Procedure A when determination of the percentage
of residue only is required.
4. Summary of Method
7.2 Determine the weight of each beaker containing a glass
4.1 Asample of emulsified asphalt in an open top beaker is
rodto0.1g.Weigh50 60.1gofthoroughlymixed,emulsified
heated in an oven at 163 6 3°C to determine the percentage of asphalt into each of three beakers.
asphalt residue. The residue from the evaporation may be
7.3 Place the beakers containing the rods and sample in the
tested as required oven, which has been adjusted to 163 6 3.0°C, for 2 h.At the
end of this period remove each beaker and stir the residue
thoroughly. Replace in the oven for 1 h, then remove the
This test method is under the jurisdiction of ASTM Committee D04 on Road
beakers from the oven, allow to cool to room temperature, and
and Paving Materials and are
...
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