ASTM-D5249 › Standard Specification for Backer Material for Use with Cold- and Hot-Applied Joint Sealants in Portland-Cement Concrete and Asphalt Joints
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Scope
1.1 This specification covers backer material for cold- and hot-applied joint sealant for use in portland-cement concrete or asphalt-pavement joints.
1.2 This specification establishes basic requirements for sealant-backer material either in rod or strip form, that can withstand the temperature of hot- or cold-applied sealants without excessive deformation.
1.3 Sealant backer material serves one or more of the following purposes:
1.3.1 Limits the amount and depth of sealant applied to a joint,
1.3.2 Acts as a barrier interface to prevent backside adhesion (bondbreaker), and
1.3.3 Provides a form to assist the sealant in developing a shape factor.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information purposes only.
1.5 The following safety hazards caveat pertains only to the test methods described in 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 and health practices and determine the applicability of regulatory limitations prior to use.
Keywords
Asphalts; Backer material; Concrete-portland cement concrete (PCC); Joint sealants; Joint sealants (concrete); Portland cement concrete (PCC); Sealant backer material; backer material (rod/strip form)-cold-/hot-applied joint sealants in; portland-cement concrete/asphalt joints, spec.,; Cold-applied elastomeric joint sealants; backer material (rod/strip form);emcold-/hot-applied joint sealants in; portland-cement concrete/asphalt joints, spec; ICS Number Code 91.100.50 (Binders. Sealing materials)
To find similar documents by ASTM Volume:
04.03 (Road and Paving Materials; Vehicle-Pavement Systems)
To find similar documents by classification:
91.100.50 (Binders. Sealing materials Including geomembranes, asphalts for buildings, etc.)
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Document Number
ASTM-D5249-10R21
Revision Level
2010 R21 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
May 7, 2021
Document Type
Specification
Page Count
4 pages
Committee Number
D04.33