English

DTIC ADA182297: Repair, Evaluation, Maintenance, and Rehabilitation Research Program. In situ Repair of Deteriorated Concrete in Hydraulic Structures: Feasibility Studies.

Presented are the results of a program conducted to identify the repair methods and materials currently being used to repair and rehabilitate concrete structures deteriorating as a result of cracking and spalling. These repair methods and materials were evaluated for their applicability to the in situ repair of concrete hydraulic structures. From this evaluation, the following three repair techniques were identified as best suited for in situ repair procedures: pressure injection, polymer impregnation, and addition of reinforcement. Case histories illustrating the application of each technique are presented. Recommendations are made for work to be performed to make these systems more applicable to the repair of hydraulic structures. Keywords: Concrete, Cracking, Hydraulic structures, In situ repair, Polymer impregnation, Post reinforcement, Pressure injection, Spalling.

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