ASTM D6945/D6945M-03(2011)e1
(Specification)Standard Specification for Emulsified Refined Coal-Tar (Ready to Use, Commercial Grade)
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.
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´1
Designation:D6945/D6945M −03 (Reapproved 2011)
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.
´ NOTE—Units information was editorially revised in June 2011.
1. Scope Pitch(Mineral Colloid Type)
D5727 Specification for Emulsified Refined Coal Tar (Min-
1.1 This specification covers mineral-colloid-stabilized,
eral Colloid Type)
emulsified refined coal tar suitable for use as a weather-
protective and petroleum (aliphatic) solvent resistant coating.
3. Terminology
This product is typically applied to commercial lots and other
3.1 The refined coal tar emulsion mixed at the contractor’s
low speed bituminous concrete pavements suitable for protec-
yard or at the job site shall meet the requirements of Specifi-
tion.
cation D5727. Mixture Types I and II (see Appendix A of
1.2 The values stated in either SI units or inch-pound units
Practice D3423 for standard definition of terms) are described
are to be regarded separately as standard. The values stated in
below:
each system may not be exact equivalents; therefore, each
3.1.1 Type I material—a mixture of refined coal tar emul-
system shall be used independently of the other. Combining
sion meeting Specification D5727, water, and aggregate.
values from the two systems may result in non-conformance
3.1.2 Type II material—a mixture of refined coal tar emul-
with the standard.
sion meeting Specification D5727, water, aggregate, and addi-
1.3 This standard does not purport to address all of the
tive.
safety concerns, if any, associated with its use. It is the
4. Classification
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.1 Thisspecificationisdesignedtogivespecifyingauthori-
bility of regulatory requirements prior to use.
ties the information necessary to ensure that the appropriate
base refined coal tar emulsion mixtures are specified for
2. Referenced Documents
protecting bituminous concrete pavements where fuel resis-
tance is required.
2.1 ASTM Standards:
C136 Test Method for Sieve Analysis of Fine and Coarse
4.2 Normal aggregate loadings for Type I materials should
Aggregates
rangefrom0.360to0.600kg/L[3to5lb/gal].TypeIImaterials
C142 Test Method for Clay Lumps and Friable Particles in
can have slightly higher loadings of aggregate; however,
Aggregates
aggregate loadings in excess of 0.720 kg/L [6 lb/gal] are
D140 Practice for Sampling Bituminous Materials
strongly discouraged.
D490 Specification for Road Tar
NOTE 1—Several researchers have shown that high aggregate loadings
D2939 Test Methods for Emulsified Bitumens Used as result in a lack of fuel resistance as determined by the Resistance to
Kerosene test according to Test Methods D2939. Poor adhesion may also
Protective Coatings
occur with high sand loadings.
D3423 Practice for Application of Emulsified Coal-Tar
5. Materials and Manufacture
5.1 Base Refined Coal Tar Emulsion—This emulsion shall
This specification is under the jurisdiction of ASTM Committee D08 on
be made using binders prepared from a high temperature
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.09
on Bituminous Emulsions.
refinedcoaltarconformingtotherequirementsofSpecification
Current edition approved May 1, 2011. Published June 2011. Originally
D490 for RT11 or higher.The use of oil and water gas tar is not
approved in 2003. Last previous edition approved in 2003 as D6945 – 03. DOI:
allowed. The base refined coal tar emulsion shall be in
10.1520/D6945_D6945M-03R11E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or accordance with all requirements of Specification D5727.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.2 Aggregate—The aggregate shall be either a natural or
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. manufactured (boiler slag has been used successfully) angular
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
D6945/D6945M−03 (2011)
TABLE 2 Type I—Composition of Mixture per 100 gal of Refined
aggregate composed of clean, hard, durable particles free of
Coal Tar Emulsion
clay and other objectionable material when tested in accor-
Refined
dance with Test Method C142. (Boiler slag has been used
Coal
Water, Aggregate,
successfully.)
Application Tar
L [gal] mg [lb]
NOTE 2—It is recommended that this aggregate meet the gradation
Emulsion,
L [gal]
given in Table 1, when tested in accordance with Test Method C136.
First and Second Seal 100 25-30 [25-30] 36-60 [300-500]
5.3 Additive—In the case of Type II material, the additive
Coat [100]
shall be approved by the base refined coal tar emulsion
manufacturer.
TABLE 3 Type II—Composition of Mixture per 100 gal of Refined
Coal Tar Emulsion
6. Performance Requirements
Refined
6.1 Type I Composition—The refined coal tar emulsion seal
Coal
Water, Additive, Aggregate,
coat shall consist of a mixture of refined coal tar emulsion,
Application Ta
...
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:D6945–03 Designation: D6945/D6945M – 03 (Reapproved 2011)
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.
´ 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
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.
2. Referenced Documents
2.1 ASTM Standards:
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
C142 Test Method for Clay Lumps and Friable Particles in Aggregates
D140 Practice for Sampling Bituminous Materials
D490 Specification for Road Tar
D2939 Test Methods for Emulsified Bitumens Used as Protective Coatings
D3423 Practice for Application of Emulsified Coal-Tar Pitch(Mineral Colloid Type)
D5727 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
D5727. Mixture Types I and II (see Appendix A of Practice D3423 for standard definition of terms) are described below:
3.1.1 Type I material—a mixture of refined coal tar emulsion meeting Specification D5727, water, and aggregate.
3.1.2 Type II material—a mixture of refined coal tar emulsion meeting Specification D5727, water, aggregate, and additive.
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[3 to 5 lb/gal).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)[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.
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 July 10, 2003. Published August 2003. DOI: 10.1520/D6945-03.
Current edition approved May 1, 2011. Published June 2011. Originally approved in 2003. Last previous edition approved in 2003 as D6945 – 03. DOI:
10.1520/D6945_D6945M-03R11E01.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
´1
D6945/D6945M – 03 (2011)
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 D5727.
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 C142. (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 C136.
5.3 Additive—In the case ofType 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 of refined coal tar emulsion, water,
and aggregate and be proportioned within the ranges as shown in Table 2. The composition shall have written approval of the
refined coal tar emulsion manufacturer.
6.2 Type II Composition—The refined coal tar emulsion slurry seal coat shall consist of a mixture of refined coal tar emulsion,
water, aggregate, and additive and be proportioned within the ranges as sh
...
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