This practice covers a procedure for measuring the dimensional change of a elastomeric joint sealant following an period of compression or tension in a test specimen configuration described in Test Method C719. These sealant materials are typically highly filled rubber materials. The dimensional change of these sealant materials is determined by measurement over a period of time until the sealant is no longer changing.
Dimensional stability and knowledge of the dimensions of a sealant is critical to accurate measurement of its modulus by a test method such as ASTM C1735-11. Many sealants have been observed to dimensionally change after being subjected to a period of compression or tension. It is only after they stop changing dimension that test methods such as ASTM C1735 can be preformed.
Keywordselastomeric sealant, compression set, tension set, recovery,
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top