The need for engineered rehabilitation of our transportation infrastructure has never been greater. There is increasing demand to make better use of shrinking resources for rehabilitation and maintenance of our highways and city streets. There are a number of concrete pavement restoration, resurfacing and reconstruction techniques, also known as CPR3 (R3 stands for restoration, resurfacing and reconstruction), to address the various distresses in the concrete pavements. Selecting the most cost-effective CPR3 requires the transportation professionals to have knowledge of the various concrete pavement restoration techniques. This paper focuses on the many restoration techniques available to extend the concrete pavements life including: full-depth/partial depth repairs, joint and crack resealing, slab stabilization/Jacking, diamond grinding, load transfer restoration, and cross stitching longitudinal cracks. These concrete pavement restoration (CPR) techniques will prolong and enhance the concrete pavement's service life in a cost effective manner. A pavement design engineer can easily adopt the proper CPR technique based on the local materials, environmental conditions, project distress conditions and costs. The paper will also review several Canadian based case studies identifying various restoration techniques which have been successfully used. For the covering abstract of this conference see ITRD number E220308.
Samenvatting