ASTM D6946-03

Standard Specification for Emulsified Refined Coal-Tar (Driveway Sealer, Ready to Use, Primarily Residential Grade) (Withdrawn 2012)

ABSTRACT
This specification covers mineral-colloid-stabilized, emulsified refined coal tar suitable for use as a weather-protective and petroleum (aliphatic) solvent resistant coating over bituminous concrete pavements. Base refined coal tar emulsion shall be made using binders prepared from a high temperature refined coal tar conforming to the requirements specified for RT11 or higher. The mixtures shall be classified into two types: Type I material is a mixture of refined coal tar emulsion, water, and optional additive and Type II material is a mixture of refined coal tar emulsions, water, aggregate, and optional additive. Aggregate is used in Type II materials to improve traction and wearability. The aggregate shall be either a natural or manufactured aggregate composed of clean, hard, durable particles free of clay and other objectionable material when tested. Different tests shall be performed in order to determine the following physical properties of coal tar: uniformity, wet film continuity, density, residue by evaporation, water content, resistance to volatilization, residue weight loss, solubility of residue in CS2, ash content of residue, aggregate content, drying time, resistance to kerosene, resistance to water, and flexibility.
SCOPE
1.1 This specification covers mineral-colloid-stabilized, emulsified refined coal tar suitable for use as a weather-protective and petroleum (aliphatic) solvent resistant coating over bituminous concrete pavements.
1.2 Both products specified are prepackaged ready to use driveway sealers primarily for retail homeowner use.
1.3 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 requirements prior to use.
WITHDRAWN RATIONALE
This specification covers mineral-colloid-stabilized, emulsified refined coal tar suitable for use as a weather-protective and petroleum (aliphatic) solvent resistant coating over bituminous concrete pavements.
Formerly under the jurisdiction of Committee D08 on Roofing and Waterproofing, this specification was withdrawn in July 2012 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

• Status: Withdrawn
• Publication Date: 09-Jul-2003
• Withdrawal Date: 09-Jul-2012
• ICS: 73.040 - Coals
• Technical Committee: D08 - Roofing and Waterproofing
• Drafting Committee: D08.09 - Liquid Applied Coatings for Roofing and Asphaltic Concrete Pavement

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: D6946 – 03
Standard Specification for
Emulsified Refined Coal-Tar (Driveway Sealer, Ready to Use,
1
Primarily Residential Grade)
This standard is issued under the fixed designation D6946; 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 3.1.2 Type II material—a mixture of refined coal tar emul-
sion meeting Specification D5727, water, aggregate, and op-
1.1 This specification covers mineral-colloid-stabilized,
tional additive.
emulsified refined coal tar suitable for use as a weather-
protective and petroleum (aliphatic) solvent resistant coating
4. Classification
over bituminous concrete pavements.
4.1 Thisspecificationisdesignedtogivespecifyingauthori-
1.2 Both products specified are prepackaged ready to use
ties the information necessary to ensure that the appropriate
driveway sealers primarily for retail homeowner use.
refined coal tar emulsion mixtures are specified for protecting
1.3 This standard does not purport to address all of the
bituminous concrete pavements where fuel resistance is re-
safety concerns, if any, associated with its use. It is the
quired.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5. Materials and Manufacture
bility of regulatory requirements prior to use.
5.1 Base Refined Coal Tar Emulsion—This emulsion shall
be made using binders prepared from a high temperature
2. Referenced Documents
2
refinedcoaltarconformingtotherequirementsofSpecification
2.1 ASTM Standards:
D490 for RT11 or higher. Base refined coal tar emulsion shall
C136 Test Method for Sieve Analysis of Fine and Coarse
be in accordance with all requirements of Specification D5727.
Aggregates
5.2 Aggregate—Aggregate is used in Type II materials to
C142 Test Method for Clay Lumps and Friable Particles in
improve traction and wearability. The aggregate shall be either
Aggregates
a natural or manufactured aggregate composed of clean, hard,
D140 Practice for Sampling Bituminous Materials
durable particles free of clay and other objectionable material
D490 Specification for Road Tar
whentestedinaccordancewithTestMethodC142.(Boilerslag
D2939 Test Methods for Emulsified Bitumens Used as
has been used successfully.)
Protective Coatings
D5727 Specification for Emulsified Refined Coal Tar (Min-
NOTE 1—It is recommended that the nominal maximum size of the
eral Colloid Type) aggregatenotexceedthe0.6mm(No.30)sievewhentestedinaccordance
with Test Method C136.
3. Terminology
6. Performance Requirements
3.1 Forbothtypesofmixtures,theingredientsarecombined
6.1 Composition—The refined coal tar emulsion seal coat
during the manufacturing process and shipped ready-to-use.
shall consist of a mixture of ingredients listed in Section 5 for
3.1.1 Type I material—a mixture of refined coal tar emul-
either specific Type I or II and shall meet all the requirements
sion meeting Specification D5727, water, and optional addi-
of Table 1.
tive.
6.2 Aggregate Verification Test—In order to verify that the
proper amount of aggregate specified in Table 1 is contained in
1
This specification is under the jurisdiction of ASTM Committee D08 on
the mixture, conduct an aggregate content test according to
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.09
Test Methods D2939.
on Bituminous Emulsions.
6.3 The material, after stirring to homogeneity, shall be
Current edition approved July 10, 2003. Published August 2003. DOI: 10.1520/
D6946-03.
suitable for application brush, squeegee, roller, or suitable
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
spray equipment without heating. The mixture shall be of
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
suitable consistency for application by the selected method in
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. single coats of approximately (depending on pavement texture)
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D6946 – 03
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TABLE 1 Physical Requirements for Emulsified Refined Coal Tar
2.9 to 4.9 m /L(60 to 100 ft /gal) without appreciable drainage
(Mineral Colloid Type)
on inclines up to 0.8 %. The mixture shall conform to the
Type I Type II
physical properties prescribed in Table 1 for Type I or Type II.
A
Characteristics Characteristics
Laboratory Test Method
min max min max
7. Sampling
Uniformity Pass Pass
7.1 Sample in accordance with Practice D140 and Test
Wet
...