Field Applications of Basalt Fiber Materials for Rehabilitation of Deteriorated Concrete Structures

Abstract

Deterioration of concrete structures is imminent with time, especially those subjected to the harsh environment in places like North America. The high cost associated with the replacement of these concrete structures has called for the development of innovative ways in which these structures can be rehabilitated effectively in a sustainable way without a huge economic burden. Several ways to repair deteriorated concrete structures have been developed over the years; however, some of these repair methods are expensive and not effective. Also, several innovative methods and materials have been studied in the past years; however, these materials and methods are limited to laboratory applications. To foster a sustainable and economic way of rehabilitating concrete structures, various basalt fiber products that have been extensively evaluated in the laboratory at the University of Windsor were used for rehabilitation of field concrete structures. Two concrete bridges located in Ontario, Canada, were selected for the case studies. Different types of basalt fiber products—chopped fibers, fabric, mesh, and rebar—were used to rehabilitate these existing structures. The field study shows that the use of basalt products is a sustainable and economical method for the rehabilitation of deteriorated reinforced concrete structures.