ASTM D7196-06

Standard Test Method for Raveling Test of Cold Mixed Bituminous Emulsion Samples

SIGNIFICANCE AND USE
This test is useful for classifying the curing and formulation of cold mixed bituminous emulsion samples through ravel testing of compacted specimens. This performance test should be used to rank the mix conditions and approximate curing time for return to traffic and resistance to weather damage.
SCOPE
1.1 This test method measures the resistance to raveling characteristics of bituminous emulsion and field aggregates or Recycled Asphalt Pavement (RAP) mixtures by simulating an abrasion similar to early return to traffic.
1.2 The values stated in SI units are to be regarded as the standard unless otherwise indicated.
1.3 A precision and bias statement for this standard has not been developed at this time. Therefore, this standard should not be used for acceptance or rejection of a material for purchasing purposes.
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.

General Information

• Status: Historical
• Publication Date: 14-Feb-2006
• ICS: 93.080.20 - Road construction materials
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.27 - Cold Mix Asphalts

Relations

• Replaced By: ASTM D7196-12 - Standard Test Method for Raveling Test of Cold Mixed Emulsified Asphalt Samples
• Effective Date: 01-Dec-2012

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7196 − 06
StandardTest Method for
Raveling Test of Cold Mixed Bituminous Emulsion Samples
This standard is issued under the fixed designation D7196; 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 2.2 ISSA Document:
ISSATechnical Bulletin No. 100 Test Method for Wet Track
1.1 This test method measures the resistance to raveling
Abrasion of Slurry Surfaces
characteristics of bituminous emulsion and field aggregates or
Recycled Asphalt Pavement (RAP) mixtures by simulating an
3. Summary of Test Method
abrasion similar to early return to traffic.
3.1 An aggregate and/or RAP is mixed together with a
1.2 The values stated in SI units are to be regarded as the
preset amount of additives (if shown to be necessary), water (if
standard unless otherwise indicated.
necessary) and bituminous emulsion. This may be a field
1.3 A precision and bias statement for this standard has not
blended mixture (Method A) or a laboratory blended mixture
beendevelopedatthistime.Therefore,thisstandardshouldnot
(MethodB).Themixtureiscompactedinagyratorycompactor
be used for acceptance or rejection of a material for purchasing
and cured at the specified conditions for a designated period of
purposes.
time. After the assigned curing time, a rotating rubber hose
1.4 This standard does not purport to address all of the
exerts an abrasion force on the specimen for a preset time
safety concerns, if any, associated with its use. It is the
period and the abraded loss of material is calculated.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Significance and Use
bility of regulatory limitations prior to use.
4.1 This test is useful for classifying the curing and formu-
lation of cold mixed bituminous emulsion samples through
2. Referenced Documents
ravel testing of compacted specimens. This performance test
2.1 ASTM Standards:
should be used to rank the mix conditions and approximate
D75 Practice for Sampling Aggregates
curing time for return to traffic and resistance to weather
D977 Specification for Emulsified Asphalt
damage.
D979 Practice for Sampling Bituminous Paving Mixtures
D2379 Test Method for Acidity of Formaldehyde Solutions
5. Apparatus
D3910 Practices for Design, Testing, and Construction of
5.1 Hobart Mixer—The ⁄3 H.P. Fixed Speed Motor, model
Slurry Seal
A 120 will be used to abrade the sample.
D4753 Guide for Evaluating, Selecting, and Specifying Bal-
5.2 Raveling Test Adapter Base—This base must fit the
ances and Standard Masses for Use in Soil, Rock, and
Hobart mixer in 5.1 and be an adequate and level support for
Construction Materials Testing
clamping the test specimen in place. The test specimen should
D6372 Practice for Design, Testing, and Construction of
not move during abrasion.Apicture of the base can be seen in
Micro-Surfacing
Fig. 1.
D6925 Test Method for Preparation and Determination of
NOTE 1—A Raveling Test Adapter Base meeting the requirements can
the Relative Density of Hot Mix Asphalt (HMA) Speci-
be purchased from Precision Machine and Welding, Salina, Kansas, (785)
mens by Means of the Superpave Gyratory Compactor
823-8760.
5.3 Raveling Test Abrasion Head with Hose—The abrasion
head should be free floating over the sample and have a mass
This test method is under the jurisdiction of ASTM Committee D04 on Road
of 600 6 15 g. This mass shall include the rubber hose. The
and Paving Materials and is the direct responsibility of Subcommittee D04.27 on
rubber hose shall be a Parker 290 Ozex General Purpose Hose
Cold Mix Asphalts.
or equivalent. The hose shall be 19 mm ID by 6.25 mm wall
Current edition approved Feb. 15, 2006. Published March 2006. DOI: 10.1520/
3 1
D7196-06.
thickness( ⁄4in.IDby ⁄4in.wallthickness)andcutto127mm
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
(5 in.) in length. The rubber hose shall be easily removed so
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
that it may be rotated or changed prior to testing to insure a
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. clean surface for abrasion.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7196 − 06
agency and mixed or blended with the materials as recom-
mended by the agency or as recommended by the additive
supplieriftheagencydoesnotspecificallydetailthemethodof
mixing or blending.
7. Test Specimens
7.1 Method A (Field Blended Cold Bituminous Paving
Mixture):
7.1.1 Make sure that sample integrity was maintained while
transferring from the field to the testing facility. Loss of
moisture and excessive curing time will affect the results of the
test.
7.1.2 Scalp the mixture sample through a 25.0-mm sieve
and split out two samples to a quantity of 2750 g in mass. The
2750 g is an approximate mass to give 70 6 5 mm of height
after compaction.
FIG. 1 Raveling Test Adapter Base
NOTE3—Atestmixforcompactionmaybenecessarytogetappropriate
mass of sample.
7.2 Method B (Lab Blended Mixture):
NOTE 2—An abrasion head similar to that used in the Wet Track
Abrasion of Slurry Surfaces (Practices D3910, D6372, and ISSATB-100)
7.2.1 Split out two samples of aggregate/RAP from the
may meet the requirements with the ring weight removed. An abrasion
25.0-mm scalped design gradation to a quantity of 2700 g in
head meeting these requirements can be purchased from Precision
mass.The2700gisanapproximatemasstoyielda70 65mm
Machine and Welding, Salina, Kansas, [phone].
high cylinder after compaction.
5.4 Oven or Environmental Chamber—If required for other
NOTE4—Atestmixforcompactionmaybenecessarytogetappropriate
than ambient laboratory curing conditions, the oven shall be a
mass of sample.
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