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原文传递 This report sets out WSDOT's view of the appropriate roles, responsibilities and allocation of costs for public and private providers of advanced traveler information systems (ATIS) services, given WSDOT’s goals of providing traveler information to promot

题名：	This report sets out WSDOT's view of the appropriate roles, responsibilities and allocation of costs for public and private providers of advanced traveler information systems (ATIS) services, given WSDOT’s goals of providing traveler information to promot
作者：	Owusu-Ababio, Sam and Nelson, Thomas
关键词：	PCC Pavement, Reflection Cracking, Crack & Seat, Rubblization, Performance, Fracture Methods.
摘要：	Slab fracture techniques, including break & seat, crack & seat, and rubblization have in recent years gained widespread recognition among pavement engineers as means for eliminating or substantially reducing the potential for reflective cracking in hot mix asphalt (HMA) overlays over portland cement concrete (PCC) pavements. Guidelines for the use of these techniques in Wisconsin, however, have not been clearly established. This reports examines the PCC rehabilitation techniques of rubblization and crack & seat used in Wisconsin and their performance. The report examines the literature and evaluates the critical issues associated with the use of PCC fracture techniques by various agencies. Several elements pertinent to fracture techniques are also identified and incorporated in a database for in-service fractured overlaid PCC pavements in Wisconsin. In addition, the in-service performance of cracked and seated and rubblized pavements in Wisconsin is evaluated. The construction procedures and equipment performance for some fractured pavement projects in Wisconsin, in addition to their short-term field performance are presented. Finally, the report provides guidelines for the use of crack and seat and rubblization rehabilitation techniques for PCC pavements in Wisconsin.
报告类型：	科技报告