Crumb Rubber Modifier (CRM) in Asphalt Pavement: Summary of Practices in Arizona, California and Florida

Descriptive

CreatorFederal Highway AdministrationContributorFederal Highway AdministrationPublisherUnited States Department of TransportationDescriptionHighway agencies have been evaluating crumb rubber modifier (CRM) in hot mix asphalt (HMA) since the 1970's. Three agencies, Arizona, California, and Florida, currently use CRM in HMA at levels that would approach or exceed the mandate in Section 1038 of the Intermodal Surface Transportation Efficiency Act of 1991. This report documents the use of CRM in HMA in these three States. In particular, it addresses issues including thickness design, materials and mix design, construction procedure, including quality control, and pavement performance. The report also addresses the following questions: (1) What processes are used? (2) Why are they used? (3) How are the products performing?Document TypeFederal DocumentBrowse TopicScience and TechnologyTransportation and TravelSubjectPavements, Asphalt--Arizona--AdditivesPavements, Asphalt --California--AdditivesPavements, Asphalt--Florida-- AdditivesDate Original1995-09Date Range1990s (1990-1999)TypeTextOriginal FormatDocuments (other)LanguageEnglishContributing InstitutionState of Arizona Research Library- Arizona State Library, Archives and Public RecordsCollectionArizona Related Federal PublicationsFederal Documents CollectionRights StatementNo Copyright- United States http://rightsstatements.org/vocab/NoC-US/1.0/ Works by the U.S. Government are not eligible for U.S. copyright protection. In some cases, however, the U.S. Government may have been assigned rights to a work. It is the researcher's obligation to determine and satisfy copyright or other use restrictions when publishing or otherwise distributing materials found in these digital collections. Transmission or reproduction of protected items beyond that allowed by fair use requires the written permission of the copyright owners. Researchers must make their own assessments of rights in light of their intended use.

Federal Documents

Federal Executive DepartmentUnited States Department of TransportationFederal Executive Department Sub-Agency or BureauFederal Highway Administration

Geographic

StateArizonaCaliforniaCountryUnited States

AgencyUnited States Department of Transportation

Administrative

Acquisition NoteDownloaded from the U.S. Department of Transportation, Federal Highway Administration's Pavements website on August 3, 2007 (http://www.fhwa.dot.gov/pavement/pub_details.cfm?id=444).Call NumberTD 2.30/13:95-056OCLC Number<34479983>Date Digitized2007-01-31Digital FormatPDF

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Crumb Rubber Modifier (CRM) in Asphalt Pavement: Summary of Practices in Arizona, California and Florida