Glossary of Terms and Acronyms Page 2 | 27 Asphalt Binder A viscous, tar-like petroleum product used as a cement that binds stone and sand together in asphalt pavements. Asphalt Rubber Asphalt cement modified with crumb rubber modifier (CRM). ASTM International ASTM International, formerly the American Society for Testing and Materials (ASTM), is a voluntary standards organization that develops and publishes thousands of international voluntary consensus standards per year for materials, products, systems and services. The worldwide standards intend to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. Working in an open and transparent process, ASTM producers, users and consumer members participate in developing industry standards that include test methods, classification, specification, guides, practices and terminology that support industries and governments worldwide. ASTM standards that apply to rubber recycling are listed below. The definitions found within these standards are used to define some of the terms listed in the Glossary. The Glossary provides a reference to the specific standard definition when it is used. ASTM D1566- 21 Standard Terminology Relating to Rubber ASTM D3053 - 20 Terminology Relating to Carbon Black Material consisting essentially of elemental carbon in the form of near-spherical colloidal particles and coalesced particle aggregates of colloidal size, obtained by partial combustion or thermal decomposition of hydrocarbons. ASTM D5603-19 Standard Classification for Rubber Compounding Materials - Recycled Vulcanizate Particulate Rubber This standard classifies the compounding material – recycled vulcanizate particulate rubber – according to maximum particle size, size distribution and parent materials including passenger car tires, light truck, truck, bus, agriculture, off-the-road (OTR) tires; tire peels, buffings generated from the tire tread and shoulder, buffings generated from tire tread, shoulder and sidewall and non-tire rubber. ASTM D5644-18 Standard Test Method for Rubber Compounding Materials - Determination of Particle Size Distribution of Recycled Vulcanizate Particulate Rubber Describes the procedures for determining average particle size distribution of recycled vulcanizate particulate rubber using a mechanical sieve shaker for 90 μm (170 mesh) or larger particles.
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