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原文传递 THE RIGID PAVEMENT DATABASE: OVERVIEW AND DATA COLLECDON PLAN

题名：	THE RIGID PAVEMENT DATABASE: OVERVIEW AND DATA COLLECDON PLAN
作者：	Teny Dossey, Tracy Toren, and B. Frank McCullough
关键词：	Rigid pavements, continuously reinforced concrete pavements, jointed concrete pavements, pavement database, distress data, Texas pavement conditions
摘要：	The rigid pavement (RP) database contains historical distress data obtained from more than 400 continuously reinforced concrete pavements (CRCP) and jointed concrete pavements (JCP) across the state of Texas. Data collection efforts began in 1974 and have bean undertaken periodically up to the present The database contents include such performance-related variables as punchouts, patches, spalling, ride score, crack spacing, and deflection basins, as well as such inventory variables as location, design thickness, coarse aggregate type, climate, soil characteristics, date of construction, and overlay status. Taken as a whole, the RP database comprises a unique asset for empirical investigation of factors affecting long-term pavement performance in Texas In order to keep the RP database current and statistically representative of Texas’ pavements, periodic reassessments of the database must be made in order to obtain updated sampling plans and new recommendations for future data collection. This retort documents a study of the twenty-four-year database, examines the past and current demographics of die data, and identifies the need for inprovement in critical areas. A plan is presented for the upcoming data collection in 1996, targeting thicker pavements, overlaid pavements, pavements constructed from new designs, and recently placed pavements. Additional needed inventory items, such as dates for the sections, more detailed climatic data, and improved location information, are also identified, with plans outlined for obtaining than. An entire chapter discusses the need for more precise location of the sections, as well as the suitability of available global positioning satellite (GPS) receiver technology for solving this ongoing problem.
报告类型：	科技报告