ASTM D3423-84(2003)

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 D 3320, 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 SI units are to be regarded as the standard. The values given in parentheses are for information only.
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: 09-Jul-2003
• 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

Relations

• Replaces: ASTM D3423-84(1998)e1 - Standard Practice for Application of Emulsified Coal-Tar Pitch (Mineral Colloid Type)
• Effective Date: 10-Jul-2003
• Replaced By: ASTM D3423/D3423M-84(2011)e1 - Standard Practice for Application of Emulsified Coal-Tar Pitch (Mineral Colloid Type)
• Effective Date: 01-May-2011

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 – 84 (Reapproved 2003)
Standard Practice for
Application of Emulsified Coal-Tar Pitch
(Mineral Colloid Type)
This standard is issued under the fixed designation D3423; 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 the manufacturer of the sealer. Wider cracks, along with soft or
sunken spots, indicate that the pavement or the pavement base
1.1 This practice covers the application of mineral-colloid-
should be repaired or replaced.
stabilized, emulsified coal-tar pitch meeting the requirements
3.1.3 Treat old, badly oxidized asphalt pavement or asphalt
of Specification D3320, as a weather protection and aliphatic-
pavement that has lost binder by erosion leaving exposed
solvent-resistant sealer for use on bituminous pavements of
aggregate with a prime coat recommended by the sealer
airports, parking lots, and driveways.
manufacturer after all loose aggregate is removed. This prime
1.2 The values stated in SI units are to be regarded as the
coat is to dry thoroughly before proceeding.
standard. The values given in parentheses are for information
3.1.4 Immediately prior to application of the sealer, clean
only.
the surface of all loose dust, dirt, leaves, and other foreign
1.3 This standard does not purport to address all of the
materials by sweeping, by flushing well with water, or a
safety concerns, if any, associated with its use. It is the
combination of both.
responsibility of the user of this standard to establish appro-
3.1.5 Remove oil or grease that has not penetrated the
priate safety and health practices and determine the applica-
asphalt pavement by scrubbing with a detergent until a water-
bility of regulatory limitations prior to use.
break-free surface is obtained after thorough flushing with
2. Referenced Documents clear water. If cleaning is unable to produce a true “water-
break-free” surface, and the size of the unsatisfactory area is
2.1 ASTM Standards:
too small to warrant replacement as described in 3.1.1, the
D3320 Specification for Emulsified Coal-Tar Pitch (Mineral
questionable area should be treated with a spot sealer as per the
Colloid Type)
pavement sealer manufacturer’s recommendation. Do not use
3. Preparation of Surface
only solvents to remove oil or grease as the solvents may affect
adhesion of the sealer.
3.1 OldAsphaltSurfaces (thosewhichhaveweatheredover
3.1.6 Remove and patch pavement that has been penetrated
a change of seasons):
by oil and grease in accordance with the precautions described
3.1.1 Repair and patch all pavement defects. If a solvent
in 3.1.1 if a cold patch is required.
containing cold-applied material is used, this should be done a
3.1.7 Treat old parking and traffic control lines with a prime
minimum of 90 days prior to the planned application of the
coat. If control lines are excessively built-up from multiple
sealer to permit solvent escape before sealing.
applications, abrade to the pavement surface before application
3.1.2 Thoroughly inspect the pavement surface for minor
of the prime coat.
cracks or other imperfections. Ignore hairline cracks. Open
3.2 New Asphalt Surfaces:
minor cracks (less than 12.7 mm ( ⁄2 in.)) to a minimum depth
3.2.1 Allow conventional hot-mix asphalt surfaces to age a
and width of 12.7 mm and fill with a crack filler approved by
minimum of 30 days prior to the application of the sealer.
3.2.2 Before application of sealer over a pavement con-
ThispracticeisunderthejurisdictionofASTMCommitteeD08onRoofingand
structed by the use of solvent-containing cold-mix asphalt, age
Waterproofing and is the direct responsibility of Subcommittee D08.09 on Bitumi-
the pavement a minimum of 90 days. A careful review and
nous Emulsions.
Current edition approved July 10, 2003. Published July 2003. Originally inspection of the pavement should be made by the supplier to
´1
approved in 1975. Last previous edition approved in 1998 as D3423 – 84 (1998) .
ensure that all solvents have escaped prior to application of the
DOI: 10.1520/D3423-84R03.
sealer.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2.3 Extend the curing period for new asphalt surfaces
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on during cool or cold weather.
the ASTM website.
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D3423 – 84 (2003)
3.2.4 The surface should be clean and free from oil an
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