Standard Methodologies for the Forensic Investigation of Pavementsby James O'Kon, O'Kon & Co, Atlanta, United States,
Abstract: The high costs of new construction have made the preservation and restoration of existing pavements an attractive alternative to replacement structures. Existing pavements that are to be given a renewed life are likely to contain flaws that must be corrected in order to satisfy the minimum criteria of operating codes. Existing pavements which suffer the stresses and strains of wear that comes with age can be given new life by diagnostic engineers who, by using forensic methodologies, can prescribe corrective action by taking the pulse of the pavement, identifying the malady and initiating the appropriate cure. The standard methodology for forensic investigation of pavements integrates a multitude of analytical tools to assess the anomolies in a pavement and recommend practical repair measures. The methodologies available to the practitioner today includes crossover techniques taken from aerospace technology, computer sciences, and basic practical skills such as management techniques, inventiveness, deductive skills and common sense. The methodology is intended for the forensic investigation of pavements and sub-grades including concrete pavements on highways, airfields, parking lots, and heavy- loaded traffic areas in warehouses. The purpose of this paper is to provide an overview of viable methodologies that can be used to diagnose the conditions of existing pavement, identify deficiencies in their performance and recommend remedial repair programs.
Subject Headings: Airport and airfield pavements | Forensic engineering | Concrete pavements | Stress strain relations | Historic preservation | Lifeline systems
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