ASTM D2823-90(1997)e1
(Specification)Standard Specification for Asphalt Roof Coatings, Asbestos Containing
Standard Specification for Asphalt Roof Coatings, Asbestos Containing
SCOPE
1.1 This specification covers asphalt roof coatings of brushing or spraying consistency.
1.2 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.
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e1
Designation: D 2823 – 90 (Reapproved 1997)
Standard Specification for
Asphalt Roof Coatings
This standard is issued under the fixed designation D 2823; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
e NOTE—Added Section 13 and deleted Footnote 7 editorially in April 1997.
1. Scope 4. Classification
1.1 This specification covers asphalt roof coatings of brush- 4.1 Type I is made from asphalts characterized as self-
ing or spraying consistency. healing, adhesive, and ductile, and conforming to the require-
1.2 This standard does not purport to address all of the ments of Specification D 312, Type I; Specification D 449,
safety concerns, if any, associated with its use. It is the Types I or II; or Specification D 946.
responsibility of the user of this standard to establish appro- 4.2 Type II is made from asphalts characterized by high
priate safety and health practices and determine the applica- softening point and relatively low ductility, and conforming to
bility of regulatory limitations prior to use. the requirements of Specification D 312 Types II or III; or
Specification D 449, Type III.
2. Referenced Documents
5. Materials and Manufacture
2.1 ASTM Standards:
D 4 Test Method for Bitumen Content 5.1 Asphalt roof coatings shall consist of an asphalt base,
D 95 Test Method for Water in Petroleum Products and volatile petroleum solvents, and mineral stabilizers including
Bituminous Materials by Distillation asbestos fiber, mixed to a smooth, uniform consistency suitable
D 140 Practice for Sampling Bituminous Materials for application by squeegee, three-knot brush, paint brush,
D 224 Specification for Smooth-Surfaced Asphalt Roll roller, or by spraying.
Roofing (Organic Felt)
2 6. Composition
D 312 Specification for Asphalt Used in Roofing
D 449 Specification forAsphalt Used in Dampproofing and 6.1 Asphalt roof coatings complying with this specification
shall conform to the following composition limits:
Waterproofing
D 562 Test Method for Consistency of Paints Using the
min max
Water, % . 1.0
Stormer Viscometer
Nonvolatile matter, % 50 .
D 946 Specification for Penetration-Graded Asphalt Ce-
Asbestos and other mineral stabilizers, % 5 20
ment for Use in Pavement Construction Asphalt, % 40 .
Mineral matter based on original mass of insoluble 80 .
D 1079 Terminology Relating to Roofing, Waterproofing
residue, %
and Bituminous Materials
E 1 Specification for ASTM Thermometers
7. Physical Requirements
7.1 Uniformity—After a thoroughly stirred sample has
3. Terminology
stood for 72 h at room temperature in a closed container, it
3.1 For definitions of terms used in this specification, see
shall show no separation of solvent or settling that cannot be
Terminology D 1079.
overcome by moderate stirring.
7.2 Consistency— The roof coating shall be of a consis-
tency that will spread readily and permit application by
This specification is under the jurisdiction of ASTM Committee D-8 on
squeegee, brush, roller, or spray at the rate of 50 ft /gal (1.25
Roofing, Waterproofing, and Bituminous Materials and is the direct reponsibility of
Subcommittee D08.05 on Solvent-Bearing Bituminous Compounds for Roofing and
m /L) on prepared roofing, saturated felt, and metal surfaces at
Waterproofing.
ambient temperatures above 50°F (10°C). Consistency at 77°F
Current edition approved June 29, 1990. Published August 1990. Originally
(25°C) shall be between 50 and 400 Stormer s/100 revolutions.
published as D 2823 – 69. Last previous edition D 2823 – 75 (1981).
Annual Book of ASTM Standards, Vol 04.04. 7.3 Behaviorat140°F(60°C)—The roof coating shall show
Annual Book of ASTM Standards, Vol 05.01.
no evidence of blistering, and sag or slide shall be no greater
Annual Book of ASTM Standards, Vol 04.03.
than ⁄4 in. (6 mm). Staining or absorption of the coating on the
Annual Book of ASTM Standards, Vol 06.01.
Annual Book of ASTM Standards, Vol 14.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 2823
reverse side of the prepared roofing test panel shall not exceed 9.5.2.1 Standard Stormer Viscometer.
5 % of the coated area. 9.5.2.2 Water Bath—Test Cup Assembly, without central
7.4 Pliability at 32°F (0°C)—There shall be no cracking or
baffle or thermometer holder.
separation of the roof coating from the metal. 9.5.2.3 Rotor, propeller-type (see Fig. 1).
9.5.2.4 Slotted Weights and a Suitable Hanger.
8. Sampling
9.5.2.5 Thermometer— ASTM Stormer Viscosity Ther-
mometer having a range from 20 to 70°C, and conforming to
8.1 Sample the material from the original containers imme-
the requirements for Thermometer 49C as prescribed in Speci-
diately after stirring to a uniform consistency in accordance
fication E 1.
with Practice D 140. Restir samples to ensure uniformity
9.5.2.6 Stop Watch.
immediately before withdrawing portions for individual tests.
9.5.3 Preparation of Apparatus:
9. Test Methods
9.5.3.1 Place the Stormer Viscometer on a table or shelf
high enough to permit the weight to drop about 40 in. (1 m), or
9.1 Water—Test Method D 95.
sufficient distance to produce about 125 revolutions of the
9.2 Nonvolatile Matter—Weigh 10 6 1 g of coating to the
rotor. Insert the shaft of the propellar-type rotor in the chuck as
nearest 0.01 g into each of two tared, flat-bottom dishes having
far as it will go and secure it with the set screw.
a diameter of approximately 2.5 in. (64 mm) and walls ⁄8 in.
9.5.3.2 Raise the water bath–test cup assembly until the
(16 mm) high. Heat the dish and contents in an oven at 320 to
bottom of the test cup just touches the bottom of the rotor
330°F (160 to 166°C) until the residue shows a loss of not
blade; then lower the assembly ⁄4 in. (6 mm). Tighten the set
more than 0.05 g on successively hourly weighings; make each
screw on the position collar, if available, while the collar is in
weighing after cooling in a desiccator. Calculate the % non-
contact with the bracket and the assembly, and use this setting
volatilematterfromthemassoftheresidueandthemassofthe
to position the cup for all test runs. Using the set screws in the
original sample as follows:
rim of the bath holder, adjust the water bath– test cup assembly
Nonvolatile matter, % 5 ~R /S! 3 100 (1)
e
so that the cup and rotor are visually concentric.
9.5.3.3 For convenience in weight adjustment, attach a
where
R 5 mass of residue from evaporation, g, and slotted metal can cover approximately 2 in. (50 mm) in
e
S 5 mass of original sample, g.
diameter to the hanger to support the slotted weights required.
Record the average of the two separate determinations. 9.5.4 Calibration:
9.3 Asbestos and Other Mineral Stabilizers, and Asphalt—
9.5.4.1 Use a 94.85 % by weight aqueous glycerin solution
Test Method D 4, Procedure No. 2, but substitute trichloro-
as a calibration standard. Determine the initial concentration of
ethylene for carbon disulfide. Mineral matter shall be reported
reagent grade glycerin by accurately measuring its specific
as asbestos and other mineral stabilizers, bitumen as asphalt.
gravity (refer to the Appendix), and then add additional water
Calculate asphalt as percent of original, X , as follows:
to make up the desired total of 5.15 % by weight water.
a
9.5.4.2 Determine the weight on the viscometer cord (ap-
X 5N 2 ~100B/A! (2)
a
proximat
...
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