Standard Specification for Cold-Applied, Single-Component, Chemically Curing Silicone Joint Sealant for Portland Cement Concrete Pavements

ABSTRACT
This specification covers two types of cold applied, single component, chemically curing silicone sealants that are based on polymers of polysiloxane structures, and are intended for use in sealing joints and cracks in Portland cement concrete highway and airfield pavements. This specification does not address the properties required of sealants for use in areas of Portland cement concrete pavements subject to jet fuel or other fuel spillage, such as vehicle or aircraft refueling and maintenance areas, or a combination thereof. Type NS (non-sag) sealant resists sagging after application in horizontal joints and requires tooling or forming into the joint to achieve the desired application configuration. Type SL (self-leveling) sealant, on the other hand, has sufficient flow characteristics to form a smooth and level surface in horizontal joints without tooling or forming after application. Specimens shall be sufficiently sampled for testing, and shall conform accordingly to the following requirements: cure evaluation; rheological properties; extrusion rate; tack-free time; effects of heat aging; non-immersed, water-immersed, and oven-aged bond characteristics; hardness; flow characteristics; rubber properties in tension such as ultimate elongation and tensile stress; and effects of accelerated weathering.
SCOPE
1.1 This specification covers cold-applied, single-component, chemically curing silicone sealants that are based on polymers of polysiloxane structures and are intended for use in sealing joints and cracks in portland cement concrete highway and airfield pavements. The specification includes both non-sag and self-leveling types of sealants.  
1.1.1 This specification does not purport to cover the properties required of sealants for use in areas of portland cement concrete pavements subject to jet fuel or other fuel spillage, such as vehicle or aircraft refueling and maintenance areas, or a combination thereof.  
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 nonconformance with the standard.  
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 9, of this specification: 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Appendix X1.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Publication Date
30-Apr-2021
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ASTM D5893/D5893M-16(2021) - Standard Specification for Cold-Applied, Single-Component, Chemically Curing Silicone Joint Sealant for Portland Cement Concrete Pavements
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D5893/D5893M −16 (Reapproved 2021)
Standard Specification for
Cold-Applied, Single-Component, Chemically Curing
Silicone Joint Sealant for Portland Cement Concrete
1
Pavements
This standard is issued under the fixed designation D5893/D5893M; 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 2. Referenced Documents
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1.1 This specification covers cold-applied, single- 2.1 ASTM Standards:
component, chemically curing silicone sealants that are based C639Test Method for Rheological (Flow) Properties of
onpolymersofpolysiloxanestructuresandareintendedforuse Elastomeric Sealants
C661Test Method for Indentation Hardness of Elastomeric-
in sealing joints and cracks in portland cement concrete
highway and airfield pavements. The specification includes Type Sealants by Means of a Durometer
C679Test Method for Tack-Free Time of Elastomeric Seal-
both non-sag and self-leveling types of sealants.
ants
1.1.1 This specification does not purport to cover the
C792TestMethodforEffectsofHeatAgingonWeightLoss,
properties required of sealants for use in areas of portland
Cracking, and Chalking of Elastomeric Sealants
cement concrete pavements subject to jet fuel or other fuel
C793Test Method for Effects of Laboratory Accelerated
spillage, such as vehicle or aircraft refueling and maintenance
Weathering on Elastomeric Joint Sealants
areas, or a combination thereof.
C1183/C1183MTest Method for Extrusion Rate of Elasto-
1.2 The values stated in either SI units or inch-pound units
meric Sealants
are to be regarded separately as standard. The values stated in
D412TestMethodsforVulcanizedRubberandThermoplas-
each system may not be exact equivalents; therefore, each
tic Elastomers—Tension
system shall be used independently of the other. Combining
D618Practice for Conditioning Plastics for Testing
values from the two systems may result in nonconformance
D1985Practice for Preparing Concrete Blocks for Testing
with the standard.
Sealants, for Joints and Cracks
D2202Test Method for Slump of Sealants
1.3 The following safety hazards caveat pertains only to the
D5249Specification for Backer Material for Use with Cold-
test methods portion, Section 9, of this specification: This
and Hot-Applied Joint Sealants in Portland Cement Con-
standard does not purport to address all of the safety concerns,
crete and Asphalt Joints
if any, associated with its use. It is the responsibility of the user
D5329Test Methods for Sealants and Fillers, Hot-Applied,
of this standard to establish appropriate safety, health, and
for Joints and Cracks in Asphalt Pavements and Portland
environmental practices and determine the applicability of
Cement Concrete Pavements
regulatory limitations prior to use. Specific precautionary
D5535Terminology Relating to Formed-in-Place Sealants
statements are given in Appendix X1.
3
for Joints and Cracks in Pavements (Withdrawn 2009)
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3. Terminology
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 3.1 Definitions—Refer to Terminology D5535 for defini-
mendations issued by the World Trade Organization Technical tions of the following terms used in this specification: backer
Barriers to Trade (TBT) Committee. material, chemically curing sealant, joint, and sealant.
1 2
This specification is under the jurisdiction ofASTM Committee D04 on Road For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Paving Materials and is the direct responsibility of Subcommittee D04.33 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Formed In-Place Sealants for Joints and Cracks in Pavements. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 1, 2021. Published May 2021. Originally the ASTM website.
3
approved in 1996. Last previous edition approved in 2016 as D5893/D5893M–16. The last approved version of this historical standard is referenced on
DOI: 10.1520/D5893_D5893M-16R21. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D5893/D5893M − 16 (2021)
4. Classification 6.6 Bond—The sealant shall be tested in accordance with
9.6 at −29 6 1°C [−20 6 2°F] fo
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