ASTM D3320/D3320M-18

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D3320/D3320M −18
Standard Specification for
Emulsified Coal-Tar Pitch (Mineral Colloid Type)
This standard is issued under the fixed designation D3320/D3320M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope minous Materials (Withdrawn 2013)
D2939Test Methods for Emulsified Bitumens Used as
1.1 This specification covers mineral-colloid-stabilized,
Protective Coatings (Withdrawn 2012)
emulsified coal-tar pitch suitable for use as a weather-
D3699Specification for Kerosine
protective and aliphatic-solvent resistant coating over bitumi-
2.2 Federal Specification:
nous pavements of airports, parking areas, and driveways.
VV-K-211Kerosene
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
3. Materials and Manufacture
each system may not be exact equivalents; therefore, each
3.1 Theemulsionshallbemadeusingtarshavingviscosities
system shall be used independently of the other. Combining
of RT-11 or higher. The tars shall conform to the requirements
values from the two systems may result in non-conformance
of Specification D490.
with the standard.
3.2 Mineral filler (mineral colloids) shall consist of finely
1.3 The following precautionary caveat pertains only to the
ground clay, silica, or other inert inorganic materials.
test method portion, Section 6, of this specification: This
(Warning—Bentonitic or highly expansive clays may cause
standard does not purport to address all of the safety concerns,
dryingandshrinkageproblems,whichmayaffectthedurability
if any, associated with its use. It is the responsibility of the user
of the pavement sealer.)
of this standard to establish appropriate safety, health, and
environmental practices and determine the applicability of
3.3 When specified, the emulsion shall be fortified with
regulatory limitations prior to use.
antifreeze.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard- 4. Physical Requirements
ization established in the Decision on Principles for the
4.1 The emulsion shall be of suitable consistency for appli-
Development of International Standards, Guides and Recom-
cation by brush, squeegee, roller, or suitable spray equipment.
mendations issued by the World Trade Organization Technical
The material shall be used as received. It shall not be diluted
Barriers to Trade (TBT) Committee.
with water or thinned by heating. It shall bond firmly to
properly prepared damp or primed surfaces.
2. Referenced Documents
NOTE 1—Pavement and ambient temperature should be not less than
2.1 ASTM Standards:
7°C [45°F] at the time of application and for at least 12 h thereafter, with
no precipitation of rain, snow, and so forth, until the emulsion has dried.
D140/D140MPractice for Sampling Asphalt Materials
D490Specification for Road Tar
4.2 The product shall be of smooth, uniform consistency
D529Practice for Enclosed Carbon-Arc Exposures of Bitu-
without settlement or segregation in storage to the extent that
it cannot be readily dispersed by ordinary stirring.
4.3 The material, after stirring to homogeneity, shall be
This specification is under the jurisdiction of ASTM Committee D08 on
suitable for application by the selected method in single coats
Roofing andWaterproofing and is the direct responsibility of SubcommitteeD08.09
2 2
of approximately 0.3 to 0.4 L/m [ ⁄4to 1 gal/100 ft ] without
on Bituminous Emulsions.
appreciable drainage on inclines up to 0.8% [0.1 in./ft].
Current edition approved Oct. 1, 2018. Published November 2018. Originally
ɛ1
approved in 1974. Last previous edition approved in 2004 as D3320–00 (2004) ,
which was withdrawn in July 2013 and reinstated in October 2018. DOI:
10.1520/D3320_D3320M-18.
2 3
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D3320/D3320M − 18
4.4 The material shall conform to the physical properties 6.10 Drying Time—Test Methods D2939, Section 13 on
prescribed in Table 1 prior to fortification with antifreeze. Drying Time, except test after drying for 8 h.
6.11 Resistance to Heat—Test Methods D2939, Section 14
5. Sampling
on Resistance to Heat, 80 6 3°C [176 6 5°F] for 2 h.
5.1 Sample in accordance with Practice D140/D140M and
6.12 Resistance to Kerosine—Test Methods D2939, except
Test Methods D2939.
apply the emulsion in two coats and use kerosine in testing
applied film.
6. Test Methods
6.12.1 Apply the material in two coats using a brass mask
6.1 Wet Film Continuity—Using a spatula, spread the wet
1.6 mm [ ⁄64 in.] in thickness for the first coat and a 3.2-mm
emulsiontoathinfilmonasheetofstandard67.7-g/m [18-lb]
[ ⁄64-in.] brass mask with the same rectangular opening as the
mimeograph paper.As the emulsion is drawn out to a smear, it
first mask for the second coat, so that the cured film has a
shall show a uniformly smooth nongranular consistency, free
minimum thickness of 1.6 mm [0.06 in.]. Leave the mask for
of coarse particles.
the first coat in place during the drying period and remove it
6.2 Resistance to Freezing (when specified)—Expose a rep-
before the second mask is positioned for the final coating
resentative specimen of the emulsion to a temperature
application.
of−18°C [0°F] for 24 h; then warm the specimen
...