Design and Construction of Asphalt Paving Materials with Crumb Rubber Modifier Document available through TRB Author(s): Heitzman, Michael A., P.E. Origin: Federal Date: 1992 Categories: Performance Key Words: Recycled tire rubber in asphalt pavements Summary: Provides a concise overview of the terminology, process, products, and application for crumb rubber modifier (CRM) technology. Briefly discusses environmental and legislative issues, history, CRM processing, wet and dry processes including properties and construction practices and new technologies for using CRM for asphalt pavement construction.