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Primary Topic: Pavement System Preservation
Description: This study gathers information on the use of highway microsurfacing treatments by transportation agencies in the United States and Canada. Microsurfacing is a polymer-modified cold-mix surface treatment that can remedy a broad range of problems on today's highways. The report identifies and discusses practices reported as effective by transportation agencies in microsurfacing project selection, design, contracting, equipment, construction, and performance measures.
Information used in this study was acquired through a review of the literature, a survey distributed to maintenance engineers at all U.S. state departments of transportation (DOTs) and Canadian provincial transportation agencies, evaluation of all 50 state DOT microsurfacing specifications as well as the one used by the U.S. Federal Lands Highway Division, and case studies of six microsurfacing projects from five U.S. states and one Canadian province.
Douglas D. Gransberg, Iowa State University, Ames, Iowa, collected and synthesized the information and wrote the report. The members of the topic panel are acknowledged on the preceding page. This synthesis is an immediately useful document that records the practices that were acceptable within the limitations of the knowledge available at the time of its preparation. As progress in research and practice continues, new knowledge will be added to that now at hand.
FHWA Publication Number:
Publication Year: 2010
Document Links: PDF (file size: 5.6 mb)
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