Rigid Pavement Repair and Maintenance Strategies for Roads & Highways
Dr. S. S. Seehra, Advisor (Technical), LEA Associates South Asia Pvt. Ltd., New Delhi, Former Director - Grade Scientist & Head, Rigid Pavements Division, CSIR-Central Road Research Institute, New Delhi).
Introduction
The rapid growth in road construction brought about considerable expansion of road infrastructure, which subsequently fell into disrepair through lack of maintenance. The damage is often so severe that ordinary maintenance will no longer suffice and if roads are to be fully restored, rehabilitation or even reconstruction work is necessary, at a life cycle cost three to seven times higher than that of preventive maintenance strategies.
The following figure indicates the typical treatment which may be considered with the age of Pavement.
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NBM&CW April 2013
