ASTM D6924-03(2007)
(Specification)Standard Specification for Preformed Thermoplastic Vulcanizate Elastomeric Joint Seals for Bridges
Standard Specification for Preformed Thermoplastic Vulcanizate Elastomeric Joint Seals for Bridges
ABSTRACT
This specification covers the material requirements for preformed thermoplastic vulcanizate (TPV) elastomeric joint seals for bridges. The seal consists of a multiple-web design composed of a TPV and functions only by compression of the seal between the faces of the joint with the seal folding inward at the top to facilitate compression. The seal is installed with a lubricant adhesive and is designed to seal the joint and reject incompressibles. The physical properties for which the seals shall be tested on and conform accordingly to are tensile strength, elongation at break, hardness, oven aging, ozone resistance, low- and high-temperature recovery, and compression-deflection properties.
SCOPE
1.1 This specification covers the material requirements for preformed thermoplastic vulcanizate (TPV) elastomeric joint seals for bridges. The seal consists of a multiple-web design composed of a TPV and functions only by compression of the seal between the faces of the joint with the seal folding inward at the top to facilitate compression. The seal is installed with a lubricant adhesive and is designed to seal the joint and reject incompressibles.
Note 1—This specification may not be applicable for seals whose height is less than 90 % of its nominal width.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided 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 requirements prior to use.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D6924 −03(Reapproved 2007)
Standard Specification for
Preformed Thermoplastic Vulcanizate Elastomeric Joint
1
Seals for Bridges
This standard is issued under the fixed designation D6924; 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 D1149 Test Methods for Rubber Deterioration—Cracking in
an Ozone Controlled Environment
1.1 This specification covers the material requirements for
D2240 Test Method for Rubber Property—Durometer Hard-
preformed thermoplastic vulcanizate (TPV) elastomeric joint
ness
seals for bridges. The seal consists of a multiple-web design
D4483 Practice for Evaluating Precision for Test Method
composed of a TPV and functions only by compression of the
Standards in the Rubber and Carbon Black Manufacturing
seal between the faces of the joint with the seal folding inward
Industries
at the top to facilitate compression. The seal is installed with a
D6338 Classification System for Highly Crosslinked Ther-
lubricant adhesive and is designed to seal the joint and reject
moplastic Vulcanizates (HCTPVs) Based onASTM Stan-
incompressibles.
dard Test Methods
NOTE 1—This specification may not be applicable for seals whose
height is less than 90 % of its nominal width.
3. Marking and Ordering Information
1.2 The values stated in inch-pound units are to be regarded
3.1 Each lot of seal shall be marked with characters of not
as the standard. The values given in parentheses are provided
less than 0.25 in. (6.35 mm) in height on the top of the seal at
for information only.
a maximum of 4 ft (1.22 m) intervals showing the lot number,
1.3 This standard does not purport to address all of the
date of manufacture, and the manufacturing seal designation.
safety concerns, if any, associated with its use. It is the
3.2 The purchaser shall specify the anticipated required
responsibility of the user of this standard to establish appro-
minimum acceptable joint movement, and either the minimum
priate safety and health practices and determine the applica-
joint opening, or the nominal width of seal.
bility of regulatory requirements prior to use.
4. Materials and Manufacture
2. Referenced Documents
4.1 The seals shall be preformed, and the material shall be
2
2.1 ASTM Standards: vulcanized elastomeric compound using a thermoplastic vul-
D395 Test Methods for Rubber Property—Compression Set canizate as the compound. A thermoplastic vulcanizate is a
D412 Test Methods forVulcanized Rubber andThermoplas- blend of a crosslinked rubber and a thermoplastic polymer that
tic Elastomers—Tension can be processed on conventional thermoplastic processing
D518 Test Method for Rubber Deterioration—Surface machinery and has the properties of a crosslinked elastomer.
3
Cracking (Withdrawn 2007) Highly crosslinked thermoplastic elastomers are classified
D573 Test Method for Rubber—Deterioration in an Air according to Classification System D6338. TPV materials are
Oven made in the dynamic vulcanization process. One example of a
D575 Test Methods for Rubber Properties in Compression typical TPV is crosslinked ethylene propylene diene rubber
blended with polypropylene. The TPV material can also
contain processing oils, antioxidants, fillers, or other additives.
1
This specification is under the jurisdiction of ASTM Committee D04 on Road
5. Physical Requirements
and Paving Materials and is the direct responsibility of Subcommittee D04.34 on
5.1 The materials shall conform to the physical properties
Preformed Joint Fillers, Sealers and Sealing Systems.
Current edition approved Dec. 1, 2007. Published January 2008. Originally
prescribed in Table 1.
approved in 2003. Last previous edition approved in 2003 as D6924 – 03. DOI:
5.2 In the applicable requirements of Table 1 and the test
10.1520/D6924-03R07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
methods, all deflection shall be based on the nominal width.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
6. Dimensions and Working Parameters
the ASTM website.
3
6.1 The size, shape and dimensional tolerances shall be as
The last approved version of this historical standard is referenced on
www.astm.org. outlined in 6.1.1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6924−03 (2007)
TABLE 1 Physical Requirements for Preformed Elastomeric
thantheminimumanticipatedjointopening,andthemovement
Joint Seals
range requ
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.