Standard Performance Specification for Coal Tar Pitch Emulsion Pavement Sealer Mix Formulations Containing Mineral Aggregates and Optional Polymeric Admixtures

SCOPE
1.1 This performance specification covers mixtures of emulsified coal-tar pitch (mineral colloid type), mineral aggregates, and optional polymeric admixtures that are used as a weather-protective and straight aliphatic hydrocarbon resistant coatings over bituminous pavements of airports, parking areas, and driveways.
1.2 The following safety hazards statement applies only to the test method portion, Section 6, of this specification: 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.

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Publication Date
31-Dec-1996
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ASTM D4866-88(1997)e1 - Standard Performance Specification for Coal Tar Pitch Emulsion Pavement Sealer Mix Formulations Containing Mineral Aggregates and Optional Polymeric Admixtures
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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.
e1
Designation: D 4866 – 88 (Reapproved 1997)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Performance Specification for
Coal Tar Pitch Emulsion Pavement Sealer Mix Formulations
Containing Mineral Aggregates and Optional Polymeric
Admixtures
This standard is issued under the fixed designation D 4866; 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.
e NOTE—Editorial changes were made throughout in January 1997.
1. Scope 3.3 The mineral aggregate shall be either a natural or
manufactured product composed of clean, hard, durable, un-
1.1 This performance specification covers mixtures of emul-
coated particles, free from dirt, organic matter, and other
sified coal-tar pitch (mineral colloid type), mineral aggregates,
objectionable substances.
and optional polymeric admixtures that are used as a weather-
3.4 The optional polymeric admixture shall be any polymer
protective and straight aliphatic hydrocarbon resistant coatings
or mixtures thereof, with added compounding ingredients of
over bituminous pavements of airports, parking areas, and
such nature and quality that will allow the admixture to be
driveways.
compatible with and enhance the performance of mineral
1.2 The following safety hazards statement applies only to
aggregate modified coal-tar emulsion pavement sealers.
the test method portion, Section 6, of this specification: This
3.5 The water used in mixing shall be potable and free from
standard does not purport to address all of the safety concerns,
harmful soluble salts. The temperature of the water shall be at
if any, associated with its use. It is the responsibility of the user
least 50°F (10°C).
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
4. Physical Requirements
tions prior to use.
4.1 The mixture as applied shall be of uniform consistency
and suitable for application to properly prepared or primed
2. Referenced Documents
2 2
surfaces at a rate of 1.0 to 2.5 gal/100 ft (0.4 to 1.0 L/m )
2.1 ASTM Standards:
without appreciable drainage on inclines up to 0.8 % (0.1
D 466 Test Methods for Films Deposited from Bituminous
in./ft).
Emulsions
D 2939 Test Methods for Emulsified Bitumens Used as
NOTE 1—Pavement and ambient temperature should be not less than
Protective Coatings 7°C (45°F) at the time of application and for at least 12 h thereafter, with
no precipitation of rain, snow, etc., until the emulsion has dried.
D 3699 Specification for Kerosine
NOTE 2—When these materials are applied in commercial quantities the
2.2 Federal Specification:
purchaser or inspector should observe the mixing to ensure that after each
RP-355e Pitch, Coal Tar Emulsion (Coating for Bituminous
step no coagulation or separation of the ingredients occurs and that the
Pavements)
mix has a good application consistency. When possible, a small batch
should be mixed and observed prior to the onset of major work.
3. Materials
4.2 The mixture shall conform to the physical properties
3.1 Ratios of component materials that make up the mixture
prescribed in Table 1.
to be tested, as well as detailed specifications for the mineral
aggregate and optional polymeric admixture shall be as agreed
5. Sampling
upon between the purchaser and the seller.
5.1 Sample in accordance with Test Methods D 2939.
3.2 The base coal-tar emulsion shall meet the requirements
of Federal Specification RP-355e. 6. Test Methods
6.1 Redispersibility—The product (coal-tar emulsion/
aggregate/water/optional admixture) shall be of a uniform
This specification is under the jurisdiction of ASTM Committee D-8 on
consistency without settlement or segregation in storage to the
Roofing, Waterproofing, and Bituminous Materials and is the direct responsibility of
Subcommittee D08.09 on Bituminous Emulsions. extent that it can be readily dispersed and applied to the
Current edition approved Dec. 15, 1988. Published January 1989.
pavement.
Annual Book of ASTM Standards, Vol 04.04.
6.2 Drying Time—Test Methods D 2939, section on Firm
Annual Book of ASTM Standards, Vol 05.03.
Set except test after drying for 8 h.
Available from General Services Administration, Regional Offices. GSA
DC-8911502595. 6.3 Resistance to Heat—Test Method D 2939, section on
NOTICE:¬This¬standard¬has¬either¬been¬superceded¬and¬replaced¬by¬a¬new¬version¬or¬discontinued.¬
Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
D 4866
TABLE 1 Physical Properties of Mixtures of Emulsified Coal-Tar
softness and loss of adhesion. Immediately after this film
Pitch, Mineral Aggregates, and Optional Polymeric Admixtures
examination, break the tile in half exposing that part of the tile
Property Characteristic
whose film was subjected to the kerosine. No evidence of
Drying time, firm set: 8 h, max
leakage of the kerosine, loss of adhesion, or discoloration of
Resistance to heat: No blistering, sagging, or slipping
the tile shall be visible.
Resistance to kerosene: No penetration or loss of adhesion
6.
...

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