ASTM D6945/D6945M-03(2017)

Standard Specification for Emulsified Refined Coal-Tar (Ready to Use, Commercial Grade)

ABSTRACT
This specification covers mineral-colloid-stabilized, emulsified refined coal tar suitable for use as a weather-protective and petroleum (aliphatic) solvent resistant coating. This product is typically applied to commercial lots and other low speed bituminous concrete pavements suitable for protection. The material shall be classified as: Type I and Type II. The refined coal tar emulsion seal coat shall consist of a mixture of refined coal tar emulsion, water, and aggregate and be proportioned within the ranges specified. Mixture and aggregate verification tests shall be performed to conform with the specified requirements.
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. This product is typically applied to commercial lots and other low speed bituminous concrete pavements suitable for protection.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
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.  
1.4 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.

General Information

• Status: Historical
• Publication Date: 30-Apr-2017
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D6945/D6945M −03 (Reapproved 2017)
Standard Specification for
Emulsified Refined Coal-Tar (Ready to Use, Commercial
Grade)
This standard is issued under the fixed designation D6945/D6945M; 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 D490 Specification for Road Tar
D2939 Test Methods for Emulsified Bitumens Used as
1.1 This specification covers mineral-colloid-stabilized,
Protective Coatings (Withdrawn 2012)
emulsified refined coal tar suitable for use as a weather-
D3423/D3423M Practice for Application of Emulsified
protective and petroleum (aliphatic) solvent resistant coating.
Coal-Tar Pitch (Mineral Colloid Type)
This product is typically applied to commercial lots and other
D5727/D5727M Specification for Emulsified Refined Coal
low speed bituminous concrete pavements suitable for protec-
Tar (Mineral Colloid Type)
tion.
1.2 The values stated in either SI units or inch-pound units 3. Terminology
are to be regarded separately as standard. The values stated in
3.1 The refined coal tar emulsion mixed at the contractor’s
each system may not be exact equivalents; therefore, each
yard or at the job site shall meet the requirements of Specifi-
system shall be used independently of the other. Combining
cation D5727/D5727M. Mixture Types I and II (see Appendix
values from the two systems may result in non-conformance
Aof Practice D3423/D3423M for standard definition of terms)
with the standard.
are described below:
1.3 This standard does not purport to address all of the
3.1.1 Type I material—a mixture of refined coal tar emul-
safety concerns, if any, associated with its use. It is the
sion meeting Specification D5727/D5727M, water, and aggre-
responsibility of the user of this standard to establish appro-
gate.
priate safety and health practices and determine the applica-
3.1.2 Type II material—a mixture of refined coal tar emul-
bility of regulatory requirements prior to use.
sion meeting Specification D5727/D5727M, water, aggregate,
1.4 This international standard was developed in accor-
and additive.
dance with internationally recognized principles on standard-
4. Classification
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4.1 Thisspecificationisdesignedtogivespecifyingauthori-
mendations issued by the World Trade Organization Technical
ties the information necessary to ensure that the appropriate
Barriers to Trade (TBT) Committee.
base refined coal tar emulsion mixtures are specified for
protecting bituminous concrete pavements where fuel resis-
2. Referenced Documents
tance is required.
2.1 ASTM Standards:
4.2 Normal aggregate loadings for Type I materials should
C136/C136M Test Method for Sieve Analysis of Fine and
rangefrom0.360to0.600kg/L[3to5lb/gal].TypeIImaterials
Coarse Aggregates
can have slightly higher loadings of aggregate; however,
C142/C142M Test Method for Clay Lumps and Friable
aggregate loadings in excess of 0.720 kg/L [6 lb/gal] are
Particles in Aggregates
strongly discouraged.
D140/D140M Practice for Sampling Asphalt Materials
NOTE 1—Several researchers have shown that high aggregate loadings
result in a lack of fuel resistance as determined by the Resistance to
Kerosene test according to Test Methods D2939. Poor adhesion may also
This specification is under the jurisdiction of ASTM Committee D08 on occur with high sand loadings.
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.09
on Bituminous Emulsions. 5. Materials and Manufacture
Current edition approved May 1, 2017. Published May 2017. Originally
5.1 Base Refined Coal Tar Emulsion—This emulsion shall
approved in 2003. Last previous edition approved in 2011 as D6945/D6945M – 03
ɛ1
(2011) . DOI: 10.1520/D6945_D6945M-03R17. be made using binders prepared from a high temperature
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6945/D6945M−03 (2017)
TABLE 2 Type I—Composition of Mixture per 100 gal of Refined
refinedcoaltarconformingtotherequirementsofSpecification
Coal Tar Emulsion
D490 for RT11 or higher.The use of oil and water gas tar is not
Refined
allowed. The base refined coal tar emulsion shall be in
Coal
Water, Aggregate,
accordance with all requirements of Specification D5727/
Application Tar
L [gal] mg [lb]
D5727M.
Emulsion,
L [gal]
5.2 Aggregate—The aggregate shall be either a natural or
First and Second Seal 100 25-30 [25-30] 36-60 [300-500]
manufactured (boiler slag has been used successfully) angular
Coat [100]
aggregate composed of clean, hard, durable particles free of
clay and other objectionable material when tested in accor-
TABLE 3 Type II—Composition of Mixture per 100 gal of Refined
dance with Test Method C142/C142M. (Boiler slag has been
Coal Tar Emulsion
used successfully.)
NOTE 2—It is recommended that this aggregate meet the gradation Refined
Coal
given in Table 1, when tested in accordance with Test Method C136/
Water, Additive, Aggregate,
Application Tar
C136M.
L [gal] L [gal] mg [lb]
Emulsion,
5.3 Additive—In the case of Type II material, the addi
...

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.
´1
Designation: D6945/D6945M − 03 (Reapproved 2011) D6945/D6945M − 03 (Reapproved
2017)
Standard Specification for
Emulsified Refined Coal-Tar (Ready to Use, Commercial
Grade)
This standard is issued under the fixed designation D6945/D6945M; 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.
ε NOTE—Units information was editorially revised in June 2011.
1. 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. This product is typically applied to commercial lots and other low speed bituminous
concrete pavements suitable for protection.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
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.
1.4 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.
2. Referenced Documents
2.1 ASTM Standards:
C136C136/C136M Test Method for Sieve Analysis of Fine and Coarse Aggregates
C142C142/C142M Test Method for Clay Lumps and Friable Particles in Aggregates
D140D140/D140M Practice for Sampling BituminousAsphalt Materials
D490 Specification for Road Tar
D2939 Test Methods for Emulsified Bitumens Used as Protective Coatings (Withdrawn 2012)
D3423D3423/D3423M Practice for Application of Emulsified Coal-Tar Pitch(Mineral Pitch (Mineral Colloid Type)
D5727D5727/D5727M Specification for Emulsified Refined Coal Tar (Mineral Colloid Type)
3. Terminology
3.1 The refined coal tar emulsion mixed at the contractor’s yard or at the job site shall meet the requirements of Specification
D5727D5727/D5727M. Mixture Types I and II (see Appendix A of Practice D3423D3423/D3423M for standard definition of
terms) are described below:
3.1.1 Type I material—a mixture of refined coal tar emulsion meeting Specification D5727D5727/D5727M, water, and
aggregate.
3.1.2 Type II material—a mixture of refined coal tar emulsion meeting Specification D5727D5727/D5727M, water, aggregate,
and additive.
This specification is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.09 on
Bituminous Emulsions.
Current edition approved May 1, 2011May 1, 2017. Published June 2011May 2017. Originally approved in 2003. Last previous edition approved in 20032011 as
ɛ1
D6945 – 03.D6945/D6945M – 03 (2011) . DOI: 10.1520/D6945_D6945M-03R11E01.10.1520/D6945_D6945M-03R17.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6945/D6945M − 03 (2017)
4. Classification
4.1 This specification is designed to give specifying authorities the information necessary to ensure that the appropriate base
refined coal tar emulsion mixtures are specified for protecting bituminous concrete pavements where fuel resistance is required.
4.2 Normal aggregate loadings for Type I materials should range from 0.360 to 0.600 kg/L [3 to 5 lb/gal]. Type II materials can
have slightly higher loadings of aggregate; however, aggregate loadings in excess of 0.720 kg/L [6 lb/gal] are strongly discouraged.
NOTE 1—Several researchers have shown that high aggregate loadings result in a lack of fuel resistance as determined by the Resistance to Kerosene
test according to Test Methods D2939. Poor adhesion may also occur with high sand loadings.
5. Materials and Manufacture
5.1 Base Refined Coal Tar Emulsion—This emulsion shall be made using binders prepared from a high temperature refined coal
tar conforming to the requirements of Specification D490 for RT11 or higher. The use of oil and water gas tar is not allowed. The
base refined coal tar emulsion shall be in accordance with all requirements of Specification D5727D5727/D5727M.
5.2 Aggregate—The aggregate shall be either a natural or manufactured (boiler slag has been used successfully) angular
aggregate composed of clean, hard, durable particles free of clay and other objectionable material when tested in accordance with
Test Method C142C142/C142M. (Boiler slag has been used successfully.)
NOTE 2—It is recommended that this aggregate meet the gradation given in Table 1, when tested in accordance with Test Method C136C136/C136M.
5.3 Additive—In the case of Type II material, the additive shall be approved by the base refined coal tar emulsion manufacturer.
6. Performance Requirements
6.1 Type I Composition—The refined coal tar emulsion seal coat shall consist of a mixture
...