WASHINGTON-The Scrap Tire Management Council will collaborate with Committee D4.45 of the American Society of Testing and Materials to develop definitions for ground rubber used in modified asphalt pavements. Agreement on this proposal was reached at the recent ASTM D4 committee meeting in Montreal. Committee D4.45 deals exclusively with setting standards and specifications for modified asphalt.
The STMC will develop definitions for consideration by the D4.45 task group on scrap tire rubber. Once the proposed definitions are approved, they will be placed on the agenda at the next D4.45 meeting, scheduled for December in Phoenix.
This collaboration with the ASTM is one of several the STMC is undertaking to speed acceptance of scrap tire products in commercial markets, according to Michael H. Blumenthal, STMC executive director.
Earlier this year, the council reached agreement with ASTM Committee D34 to write specifications for scrap tire rubber in civil engineering applications. Soon there should be another ASTM action initiated to develop definitions for tire-derived fuel, according to Mr. Blumenthal.
``We're trying to standardize terms and definitions within the scrap tire industry, and the ASTM is the best place to go for that,'' he said.
``We're trying to introduce these technologies to engineers, and engineers look to the ASTM for standards. We have to give them something to hang their hat on.''