| Título: | Inspection and repair of underwater concrete structures |
| Autores: | D'Argenzio, Domenic |
| Fecha: | 1994 |
| Publicador: | McGill University - MCGILL |
| Fuente: |
 |
| Tipo: | Electronic Thesis or Dissertation |
| Tema: |
Engineering, Civil. Engineering, Mechanical. |
| Descripción: |
The service life of any concrete marine structure is influenced by the physical condition of both the above water and below water portions of structure. This requires implementing an adequate inspection, maintenance, and repair program for the entire structure. To develop an effective maintenance and repair program for the submerged portion of the structure, the causes and extent of concrete distress or deterioration must be clearly understood. This requires a selective underwater condition survey, using a range of in-situ and laboratory testing and inspection techniques, to obtain the necessary information to assess the condition of the submerged portion of the structure. The cause and extent of deterioration, site logistics, and the clients needs will dictate the methods of inspection and repair. Recent developments in concrete admixtures has made it possible to place higher quality concrete suitable for underwater repairs. This thesis provides a summary of the most common forms of concrete distress found in a marine environment, along with a state-of-the-art review of existing and recently developed underwater inspection and repair techniques. In addition, four case studies are presented to illustrate the application of the above knowledge. The first case study describes the special aspects of underwater repairs to a concrete storm surge barrier damaged during construction. The second case study summarizes the procedures used for repairing a cracked concrete gravity dam by polyurethane resin injection methods. The third case study presents the various procedures used for repairing concrete railway bridge piers in a marine environment which were damaged by severe alkali-aggregate reaction. The final case study describes underwater repair procedures and concrete investigation techniques used in repairing the piers of a highway bridge. |
| Idioma: | en |
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