ASTM D5249-10 (R2021) pdf free download ASTM D5249-10 (R2021) pdf free download.Standard Specification for Backer Material for Use with Cold... 12/16/2021ASTM Standards124Standard Specification for Backer Material for Use with Cold- and Hot-Applied Joint Sealants in Portland Cement Concrete and Asphalt JointsComments Read more