ASTM D6152-99

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Designation: D 6152 – 99
Standard Specification for
SEBS-Modified Mopping Asphalt Used in Roofing
This standard is issued under the fixed designation D 6152; 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.
1. Scope D 1079 Terminology Relating to Roofing, Waterproofing,
and Bituminous Materials
1.1 This specification covers SEBS (styrene-ethylene-
D 2042 Test Method for Solubility of Asphalt Materials in
butylene-styrene)-modified asphalt intended for use in built-up
Trichloroethylene
roof construction, construction of some modified bitumen
D 3111 Test Method for Flexibility of Hot-Melt Adhesives
systems, construction of bituminous vapor retarder systems,
by Mandrel Bend Test Method
and for adhering insulation boards used in various types of roof
systems.
3. Terminology
1.2 This standard is intended as a material specification.
3.1 Definitions— For definitions of general terms used in
Issues regarding the suitability of specific roof constructions or
this specification, refer to Terminology D 1079.
application techniques are beyond its scope.
3.2 Definitions of Terms Specific to This Standard:
1.3 The specified tests and property values used to charac-
3.2.1 elastic recovery, n—the degree to which a material
terize SEBS-modified asphalt are intended to establish mini-
returns to its normal dimensions after being distorted.
mumproperties.Inplacesystemdesigncriteriaorperformance
3.2.2 low temperature flexibility, n—the ability of a material
attributes are factors beyond the scope of this specification.
to bend at a prescribed rate around a mandrel of a prescribed
1.4 The values stated in SI units are to be regarded as the
diameter at a prescribed low temperature without cracking or
standard. The values given in parentheses are for information
breaking.
only.
1.5 This standard does not purport to address the safety
4. Materials and Manufacture
concerns, if any, associated with its use. It is the responsibility
4.1 The base asphalt shall be prepared from crude petro-
of the user of this standard to establish appropriate safety and
leum.
health practices and determine the applicability of regulatory
4.2 The SEBS-modified asphalt shall incorporate sufficient
limitations prior to use.
SEBS as the primary polymeric modifier to meet the require-
2. Referenced Documents ments of this specification.
2.1 ASTM Standards:
5. Physical Requirements
D 5 Test Method for Penetration of Bituminous Materials
5.1 The SEBS modified asphalt shall be homogeneous and
D 36 Test Method for Softening Point of Bitumen (Ring-
free of water.
and-Ball Apparatus)
5.2 The SEBS modified asphalt shall conform to the physi-
D 92 Test Method for Flash and Fire Points by Cleveland
cal properties prescribed in Table 1.
Open Cup
D 140 Practice for Sampling Bituminous Materials
6. Sampling
D 312 Specification for Asphalt Used in Roofing
6.1 Sample the material as prescribed in Practice D 140.
D 412 Test Methods for Vulcanized Rubber and Thermo-
6.2 If the material is shipped in hot filled cardboard or
plastic Rubbers and Thermoplastic Elastomers—Tension
plastic kegs, obtain samples from the kegs in accordance with
the following procedure:
6.2.1 Remove the container from the block of SEBS-
This specification is under the jurisdiction of ASTM Committee D-08 on modified asphalt, cutting away the liner if present.
Roofing,Waterproofing, and Bituminous Materials and is the direct responsibility of
6.2.2 Using a hatchet or a hot knife, cut two vertical wedges
Subcommittee D08.03 on Surfacing and Bituminous Materials for Membrane
approximately 50 mm (2 in.) wide and 50 mm (2 in.) deep
Waterproofing and Builtup Roofing.
along the entire length of the material block. Cut the wedges
Current edition approved Jan. 10, 1999. Published March 1999. Originally
published as D 6152–97. Last previous edition D 6152–97.
into 100–mm (4–in.) lengths.
Annual Book of ASTM Standards, Vol 04.03.
Annual Book of ASTM Standards, Vol 04.04.
Annual Book of ASTM Standards, Vol 05.01.
5 6
Annual Book of ASTM Standards, Vol 09.01. Annual Book of ASTM Standards, Vol 15.06.
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D 6152
TABLE 1 Physical Requirements of SEBS-Modified Asphalt Used
where:
A
in Roofing
L 5 initial length between benchmarks, and
Property Min Max
X 5 length between benchmarks after recovery.
Softening point, °C (°F) 85 (185) 116 (240)
7.6 Determine high temperature stability by conditioning
before and after heat exposure
the specimen as prescribed in Section 8. Determine the
Softening point change, °C (°F) –5 (–9) 5 (9)
softening point of the specimen as prescribed by Test Method
after heat exposure
Flash point, °C (°F) 260 (500) . . .
D 36. The softening point of the specimen shall not change by
Penetration, units at 25°C (77°F) 20 60
more than 10°C. Determine the penetration of the specimen as
before and after heat exposure
prescribed by Test Method D 5. The penetration of the speci-
Penetration change, units at 25°C (77°F) –5 12
after heat exposure
men shall not change by more than 12 units. The softening
Solubility in trichloroethylene, % 99 . . .
point and penetration of the SEBS-modified asphalt shall
Tensile elongatio
...