ASTM D3423/D3423M-15

Standard Practice for Application of Emulsified Coal-Tar Pitch (Mineral Colloid Type)

ABSTRACT
This practice covers the application of mineral-colloid-stabilized, emulsified coal-tar pitch, as a weather protection and aliphatic-solvent-resistant sealer for use on bituminous pavements of airports, parking lots, and driveways. The procedure for preparation of (1) old asphalt surfaces, (2) new asphalt surfaces, and (3) emulsion, and the procedure for application of emulsion for the first coat and second coat are detailed. When sand addition to the top coat of the emulsion is necessary, the sand shall meet the prescribed sieve size requirements. Application precautions including weather conditions, pavement and air temperatures, drying time, and emulsion freezing are also provided.
SCOPE
1.1 This practice covers the application of mineral-colloid-stabilized, emulsified coal-tar pitch meeting the requirements of Specification D5727/D5727M, as a weather protection and aliphatic-solvent-resistant sealer for use on bituminous pavements of airports, parking lots, and driveways.  
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 limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Oct-2015
• ICS: 91.100.50 - Binders. Sealing materials
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D3423/D3423M − 15
Standard Practice for
Application of Emulsified Coal-Tar Pitch (Mineral Colloid
1
Type)
This standard is issued under the fixed designation D3423/D3423M; 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
1. Scope minor cracks (less than 12.7 mm [ ⁄2 in.]) to a minimum depth
and width of 12.7 mm and fill with a crack filler approved by
1.1 This practice covers the application of mineral-colloid-
the manufacturer of the sealer. Wider cracks, along with soft or
stabilized, emulsified coal-tar pitch meeting the requirements
sunken spots, indicate that the pavement or the pavement base
of Specification D5727/D5727M, as a weather protection and
should be repaired or replaced.
aliphatic-solvent-resistant sealer for use on bituminous pave-
3.1.3 Treat old, badly oxidized asphalt pavement or asphalt
ments of airports, parking lots, and driveways.
pavement that has lost binder by erosion leaving exposed
1.2 The values stated in either SI units or inch-pound units
aggregate with a prime coat recommended by the sealer
are to be regarded separately as standard. The values stated in
manufacturer after all loose aggregate is removed. This prime
each system may not be exact equivalents; therefore, each
coat is to dry thoroughly before proceeding.
system shall be used independently of the other. Combining
3.1.4 Immediately prior to application of the sealer, clean
values from the two systems may result in non-conformance
the surface of all loose dust, dirt, leaves, and other foreign
with the standard.
materials by sweeping, by flushing well with water, or a
1.3 This standard does not purport to address all of the
combination of both.
safety concerns, if any, associated with its use. It is the
3.1.5 Remove oil or grease that has not penetrated the
responsibility of the user of this standard to establish appro-
asphalt pavement by scrubbing with a detergent until a water-
priate safety and health practices and determine the applica-
break-free surface is obtained after thorough flushing with
bility of regulatory limitations prior to use.
clear water. If cleaning is unable to produce a true “water-
break-free” surface, and the size of the unsatisfactory area is
2. Referenced Documents
too small to warrant replacement as described in 3.1.1, the
2
2.1 ASTM Standards:
questionable area should be treated with a spot sealer as per the
D5727/D5727M Specification for Emulsified Refined Coal
pavement sealer manufacturer’s recommendation. Do not use
Tar (Mineral Colloid Type)
only solvents to remove oil or grease as the solvents may affect
adhesion of the sealer.
3. Preparation of Surface
3.1.6 Remove and patch pavement that has been penetrated
3.1 Old Asphalt Surfaces (those which have weathered over by oil and grease in accordance with the precautions described
a change of seasons): in 3.1.1 if a cold patch is required.
3.1.1 Repair and patch all pavement defects. If a solvent
3.1.7 Treat old parking and traffic control lines with a prime
containing cold-applied material is used, this should be done a
coat. If control lines are excessively built-up from multiple
minimum of 90 days prior to the planned application of the
applications, abrade to the pavement surface before application
sealer to permit solvent escape before sealing.
of the prime coat.
3.1.2 Thoroughly inspect the pavement surface for minor
3.2 New Asphalt Surfaces:
cracks or other imperfections. Ignore hairline cracks. Open
3.2.1 Allow conventional hot-mix asphalt surfaces to age a
minimum of 30 days prior to the application of the sealer.
1
3.2.2 Before application of sealer over a pavement con-
This practice is under the jurisdiction of ASTM Committee D08 on Roofing and
Waterproofing and is the direct responsibility of Subcommittee D08.09 on Bitumi-
structed by the use of solvent-containing cold-mix asphalt, age
nous Emulsions.
the pavement a minimum of 90 days. A careful review and
Current edition approved Nov. 1, 2015. Published November 2015. Originally
inspection of the pavement should be made by the supplier to
approved in 1975. Last previous edition approved in 2011 as D3423/D3423M – 84
ɛ1
(2011) . DOI: 10.1520/D3423_D3423M-15. ensure that all solvents have escaped prior to application of the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
sealer.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3.2.3 Extend the curing period for new asphalt surfaces
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. during cool or cold weath
...

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: D3423/D3423M − 84 (Reapproved 2011) D3423/D3423M − 15
Standard Practice for
Application of Emulsified Coal-Tar Pitch (Mineral Colloid
1
Type)
This standard is issued under the fixed designation D3423/D3423M; 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
ε NOTE—Units information was editorially revised in June 2011.
1. Scope
1.1 This practice covers the application of mineral-colloid-stabilized, emulsified coal-tar pitch meeting the requirements of
Specification D3320D5727/D5727M, as a weather protection and aliphatic-solvent-resistant sealer for use on bituminous
pavements of airports, parking lots, and driveways.
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
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D3320D5727/D5727M Specification for Emulsified Coal-Tar Pitch Refined Coal Tar (Mineral Colloid Type) (Withdrawn 2013)
3. Preparation of Surface
3.1 Old Asphalt Surfaces (those which have weathered over a change of seasons):
3.1.1 Repair and patch all pavement defects. If a solvent containing cold-applied material is used, this should be done a
minimum of 90 days prior to the planned application of the sealer to permit solvent escape before sealing.
3.1.2 Thoroughly inspect the pavement surface for minor cracks or other imperfections. Ignore hairline cracks. Open minor
1
cracks (less than 12.7 mm [ ⁄2 in.]) to a minimum depth and width of 12.7 mm and fill with a crack filler approved by the
manufacturer of the sealer. Wider cracks, along with soft or sunken spots, indicate that the pavement or the pavement base should
be repaired or replaced.
3.1.3 Treat old, badly oxidized asphalt pavement or asphalt pavement that has lost binder by erosion leaving exposed aggregate
with a prime coat recommended by the sealer manufacturer after all loose aggregate is removed. This prime coat is to dry
thoroughly before proceeding.
3.1.4 Immediately prior to application of the sealer, clean the surface of all loose dust, dirt, leaves, and other foreign materials
by sweeping, by flushing well with water, or a combination of both.
3.1.5 Remove oil or grease that has not penetrated the asphalt pavement by scrubbing with a detergent until a water-break-free
surface is obtained after thorough flushing with clear water. If cleaning is unable to produce a true “water-break-free” surface, and
the size of the unsatisfactory area is too small to warrant replacement as described in 3.1.1, the questionable area should be treated
with a spot sealer as per the pavement sealer manufacturer’s recommendation. Do not use only solvents to remove oil or grease
as the solvents may affect adhesion of the sealer.
3.1.6 Remove and patch pavement that has been penetrated by oil and grease in accordance with the precautions described in
3.1.1 if a cold patch is required.
1
This practice 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, 2011Nov. 1, 2015. Published June 2011November 2015. Originally approved in 1975. Last previous edition approved in 20032011 as
ɛ1
D3423 – 84D3423/D3423M – 84 (2003).(2011) . DOI: 10.1520/D3423_D3423M-84R11E01.10.1520/D3423_D3423M-15.
2
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3423/D3423M − 15
3.1.7 Treat old parking and traffic control lines with a prime coat. If contro
...