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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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STANDARD published on 1.5.2021
The information about the standard:
Designation standards: ASTM D5893/D5893M-16(2021)
Publication date standards: 1.5.2021
SKU: NS-1024059
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM D5893/D5893M-16(2021) :
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.
Keywords:
chemically curing sealant, joint sealant, portland cement concrete pavement, silicone sealant,, ICS Number Code 93.080.20 (Road construction materials)
Additional information
| 1. Scope | ||||||||||||||||||||||||||
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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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