详情

原文传递 REEVALUATION OF SEAL COATING PRACTICES IN MINNESOTA.

题名：	REEVALUATION OF SEAL COATING PRACTICES IN MINNESOTA.
作者：	Janisch-DW
关键词：	SEAL-COATS; BITUMINOUS-PAVEMENTS; CHIP-SEAL; MINNESOTA-; SPECIFICATIONS-; PERFORMANCE-EVALUATIONS; LOCAL-AGENCIES; TEST-SECTIONS; FIELD-STUDIES; DESIGN-METHODS; AGGREGATES-; AGGREGATE-GRADATION; BINDERS-
摘要：	Seal coating bituminous pavements, also called chip sealing, is a common type of routine maintenance done by local governmental agencies in Minnesota. Most cities, counties, and rural Minnesota Department of Transportation (Mn/DOT) districts construct at least some seal coats annually. Over the years, Mn/DOT has received calls from local agencies concerned about poor performing seal coats. This, along with recent developments from the Strategic Highway Research Program (SHRP), led to the development of a seal coat research study. The goal of this study is to find the factors involved in constructing a high-quality seal coat. This includes an examination of the current Mn/DOT specifications and studying the performance of seal coats designed using the procedure found in the Asphalt Institute MS-19 "A Basic Asphalt Emulsion Manual", which was used by SHRP. In all eight local agencies participated in this study: five municipalities and three counties. The test sections were constructed during the summer and fall of 1993. Experiment variables include application rate, sweeping time, aggregate type and gradation, and binder type. These sections will be monitored over the next several years to evaluate their performance. An overview of the study is presented, the preliminary data are examined, and the findings are summarized. The study will likely lead to changes to the current Mn/DOT bituminous seal coat specifications.
总页数：	Transportation Research Record. 1995. (1507) pp30-38 (11 Fig., 4 Tab., 6 Ref.)
报告类型：	科技报告