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- W573331059 abstract "This report presents details of a study conducted by the University of Cincinnati (UC) to 'design a project to statistically verify the effectiveness of Ohio Department of Transportation’s (ODOT's) current crack sealing program on pavement condition and life'. The UC researchers have worked closely with the ODOT engineers for two years (2000 to 2002) and have established a field experiment. The experimental plan has been carefully designed to obtain statistically valid conclusions. The design of experiment included several tasks, namely, identification of experimental variables, determining sample size required, defining a measure of effectiveness, selection of test sections, conducting field studies, determining type and frequency of data to be collected, and developing a database. In this study, the effectiveness of crack sealing of flexible and composite pavements will be determined through a series of well controlled field evaluations conducted over a period of nearly ten years. Based on an evaluation of crack sealing practices in Ohio, a review of published literature, and a discussion with ODOT’s engineers, the primary design factors selected for the field experiment were pavement type, type of aggregate in the surface layer and Pavement Condition Rating (PCR) level. In addition, environmental conditions, functional classification, crack sealing material type and placement procedures were considered as secondary variables. Pavement condition data were and are still being collected on all test sections prior to crack sealing and at regular intervals after crack sealing. In addition, the International Roughness Index (IRI) and Skid data are also being compiled using ODOT’s inventory. An interactive database has been developed to assist the ODOT in (i) data gathering, (ii) data storing, (iii) data processing, and (iv) data analysis. This database termed ODOT - ECS (Ohio Department of Transportation - Database to Evaluate Crack Sealing Practices in Ohio) is a comprehensive MS Windows based software developed in MS Visual Basic and MS Access. The data collected would be used by the ODOT to address the following specific issues: (i) Do existing crack sealing practices within ODOT enhance pavement performance?, (ii) Are crack sealing practices cost beneficial?, and (iii) What is the optimum timing for treatment?" @default.
- W573331059 created "2016-06-24" @default.
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- W573331059 date "2003-06-01" @default.
- W573331059 modified "2023-09-27" @default.
- W573331059 title "Effectiveness of Crack Sealing on Pavement Serviceability and Life" @default.
- W573331059 hasPublicationYear "2003" @default.
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