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Low volume Portland cement concrete pavement performance evaluation and rehabilitation strategy selection

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Title: Low volume Portland cement concrete pavement performance evaluation and rehabilitation strategy selection
Author(s): Cable, James K.
Doctoral Committee Chair(s): Barenberg, Ernest J.
Department / Program: Civil and Environmental Engineering
Discipline: Civil Engineering
Degree Granting Institution: University of Illinois at Urbana-Champaign
Degree: Ph.D.
Genre: Dissertation
Subject(s): Engineering, Civil
Abstract: This study focused on the evaluation of all 43 existing portland cement concrete pavements in Boone County, Iowa. The research was directed at the evaluation of the factors effecting the performance the county pavements. Equations relating the design parameters to the commonly identified concrete distresses in pavements are also presented.The knowledge of practicing engineers was utilized to develop guidance in rehabilitation or reconstruction planning timing for concrete pavements in relation to the presence of pavement distresses.Field surveys were conducted to obtain the necessary construction and condition data for use in the study. Some 15 separate distress types by location on the pavement, were identified and used to direct data collection on 100% of the sample pavements. These distresses were further combined to provide seven different distress types for the detailed identification of performance factors.Graphical and statistical analyses were used to evaluate the effect of measured variables on the individual pavement distresses. Results indicate that the pavements have provided adequate design performance and also identified variables effecting the pavement performance that are not commonly identified. The analysis resulted in the development of individual equations relating individual distress levels to performance noted in the sample pavements.Each of 99 county engineers in Iowa and 102 county engineers or superintendents in Illinois was surveyed to develop a knowledge based system that identifies a range of distress levels associated with pavement rehabilitation or reconstruction in a "Time of Opportunity" table. It represents the county engineers' mental measure of when and where to perform rehabilitation and reconstruction.The combination of the performance parameter equations and the "Time of Opportunity" table provide the local road engineer with ways to objectively and/or subjectively evaluate the current concrete pavement system condition and make better decisions as to the proper steps to take in meeting public expectations in road performance.
Issue Date: 1994
Type: Text
Language: English
URI: http://hdl.handle.net/2142/20713
Rights Information: Copyright 1994 Cable, James K.
Date Available in IDEALS: 2011-05-07
Identifier in Online Catalog: AAI9512312
OCLC Identifier: (UMI)AAI9512312
 

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