ASTM D6937-08
(Test Method)Standard Test Method for Determining Density of Emulsified Asphalt
Standard Test Method for Determining Density of Emulsified Asphalt
SIGNIFICANCE AND USE
This test method provides a controlled laboratory test for the determination of quantitative volumes of emulsified asphalt for use in bills of lading, invoicing, and application rates.
SCOPE
1.1 This test method covers the determination of density of emulsified asphalt used in highway construction. This unit is computed by determining the mass of an emulsified asphalt contained in a standard measure of known volume.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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: D6937 −08
StandardTest Method for
1
Determining Density of Emulsified Asphalt
This standard is issued under the fixed designation D6937; 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 This test method covers the determination of density of 5.1 Density Cup—Stainless steel measure of known stan-
emulsified asphalt used in highway construction. This unit is dard volume (83.2 mL).
computed by determining the mass of an emulsified asphalt
5.2 Balance—capable of being read to the nearest 0.01 g.
contained in a standard measure of known volume.
5.3 Water Bath—constant-temperature, maintained at 25 6
1.2 This test method does not purport to address all of the
0.5°C.
safety concerns, if any, associated with its use. It is the
5.4 Thermometer—ASTM 17C or 17F conforming to the
responsibility of the user of this standard to establish appro-
requirements of Specification E1 or equivalent thermometric
priate safety and health practices and determine the applica-
device.
bility of regulatory limitations prior to use.
6. Procedure
2. Referenced Documents
6.1 Stir the emulsified asphalt sample and place in a
2.1 ASTM Standards:
constant-temperature water bath maintained at 25 6 0.5°C for
E1 Specification for ASTM Liquid-in-Glass Thermometers
approximately 1 hr.
3. Significance and Use
6.2 Place the measure and its cap on the balance, tare, and
3.1 This test method provides a controlled laboratory test
zero the balance.
for the determination of quantitative volumes of emulsified
6.3 Removetheemulsifiedasphaltsamplefromthebathand
asphalt for use in bills of lading, invoicing, and application
stir, using care to avoid trapping air in the sample. If necessary,
rates.
strain through a 850-µm sieve to remove any skin or film that
might be present in the emulsified asphalt.
4. Sample Conditioning for Testing
6.4 Bring the measure to approximately 25°C and pour the
4.1 All emulsified asphalts shall be properly stirred to
emulsified asphalt into the measure, filling it completely (or
achieve homogeneity before testing.
within 2 mm of the rim).
4.2 All emulsified asphalts with viscosity testing require-
6.5 Start placing the cap into the measure and remove, with
ments of 50°C shall be heated to 50 6 3°C in the original
a clean dry rag or paper, the excess emulsified asphalt oozing
sample container in a water bath or oven. The container should
through the orifice in the cap.
be vented to relieve pressure. After the sample reaches 50 6
6.6 When the cap is placed on tightly, clean the measure
3°C, stir the sample to achieve homogeneity.
carefully, weigh on the tared balance to the nearest 0.01 g, and
4.3 Emulsified asphalts with viscosity testing requirements
record.
of 25°C should be mixed or stirred at 25 6 3°C in the original
sample container to achieve homogeneity.
7. Calculation
NOTE 1—Emulsified asphalts with viscosity testing requirements of
7.1 Calculate the density of the emulsified asphalt as fol-
25°C may be heated and stirred as specified in 4.2 if necessary. In the
lows:
event the 4.2 method is used, the sample should be cooled to 25 6 3°C
before testing.
W 5 G 11.98 (1)
~ !~ !
where:
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
W = unit density of the emulsified asphalt, as expressed in
and Paving Materials and is the direct responsibility of Subcommittee D04.42 on
g/L, and
Emulsified Asphalt Test.
G = mass of emulsified asphalt in the measure, g.
Current edition approved July 15, 2008. Published August 2008. Originally
approved in 2004. Last previous edition approved in 2004 as D6937 – 04. DOI: NOTE 2—If the desired units are to be expressed in pounds per gallon
10.1520/D6937-08. at 25°C, then the calculation would be W = G/10. Pounds per gallon at
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D6937 − 08
25°C may be translated to pounds per gallon at 15.6°C by using a
Unit Mass Repeatability
multiplier of 1.00475. The calculation of Imperial gallon mass may be
grams per litre 25°C 0.019
made by using the proper conversion factors.
9.1.2 The results submitted by each of two laboratories
should not be considered suspect unless they differ by more
8. Report
than the following amount:
8.1 Report the unit density of the emulsified asphalt in g/L
Unit Mass Reproducibility
to the nearest whole unit at 25°C.
grams per litre 25°C 0.034
9.2 The bias of this test method cannot be determined
9. Precision and Bias
because no material having an accepted r
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D6937–04 Designation: D 6937 – 08
Standard Test Method for
1
Determining Density of Emulsified Asphalt
This standard is issued under the fixed designation D 6937; 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
1.1 This test method covers the determination of density of emulsified asphalt used in highway construction. This unit is
computed by determining the mass of an emulsified asphalt contained in a standard measure of known volume.
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.
2. Significance and Use
2.1This test method provides a controlled laboratory test for the determination of quantitative volumes of emulsified asphalt for
use in bills of lading, invoicing, and application rates. Referenced Documents
2.1 ASTM Standards:
E 1 Specification for ASTM Liquid-in-Glass Thermometers
3. Sample Conditioning for Testing
3.1All emulsified asphalts shall be properly stirred to achieve homogeneity before testing.
3.2Significance and Use
3.1 This test method provides a controlled laboratory test for the determination of quantitative volumes of emulsified asphalt
for use in bills of lading, invoicing, and application rates.
4. Sample Conditioning for Testing
4.1 All emulsified asphalts shall be properly stirred to achieve homogeneity before testing.
4.2 All emulsified asphalts with viscosity testing requirements of 50°C shall be heated to 50 6 3°C in the original sample
container in a water bath or oven. The container should be vented to relieve pressure.After the sample reaches 50 6 3°C, stir the
sample to achieve homogeneity.
34.3 Emulsified asphalts with viscosity testing requirements of 25°C should be mixed or stirred at 25 6 3°C in the original
sample container to achieve homogeneity.
NOTE 1—Emulsified asphalts with viscosity testing requirements of 25°C may be heated and stirred as specified in 3.2 4.2 if necessary. In the event
the 3.2 4.2 method is used, the sample should be cooled to 25 6 3°C before testing.
4.
5. Apparatus
4.1
5.1 Density Cup—Stainless steel measure of known standard volume (83.2 mL).
4.2
5.2 Balance—capable of being read to the nearest 0.01 g.
4.3
5.3 Water Bath—constant-temperature, maintained at 25 6 0.5°C.
1
This test method is under the jurisdiction ofASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.42 on Emulsified
Asphalt Tests.
Current edition approved Aug. 1, 2004. Published August 2004.
1
This test method is under the jurisdiction ofASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.42 on Emulsified
Asphalt Test.
Current edition approved July 15, 2008. Published August 2008. Originally approved in 2004. Last previous edition approved in 2004 as D 6937 – 04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D6937–08
5.Procedure
5.1Stirtheemulsifiedasphaltsampleandplaceinaconstant-temperaturewaterbathmaintainedat25 60.5°Cforapproximately
1hr.
5.2Place the measure and its cap on the balance, tare, and zero the balance.
5.3Remove the emulsified asphalt sample from the bath and stir, using care to avoid trapping air in the sample. If necessary,
strain through a 850-µm sieve to remove any skin or film that might be present in the emulsified asphalt.
5.4Bring the measure to approximately 25°C and pour the emulsified asphalt into the measure, filling it completely.
5.5Startplacingthecapintothemeasureandremove,withacleandryragorpaper,theexcessemulsifiedasphaltoozingthrough
the orifice in the cap.
5.6When the cap is placed on tightly, clean the measure carefully, weigh on the tared balance to the nearest 0.01g, and record.
5.4 Thermometer—ASTM 17C or 17F conforming to the requirements of Specification E 1 or equivalent thermometric device.
6. Procedure
6.1 Stir the emulsified asphalt sample and place in a constant-temperature water bath maintained at 25 6 0.5°C for
approximately 1 hr.
6.2 Place the measure and its cap on the balance, tare, and zer
...
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