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Repairing Concrete with Shotcrete (A Primer for Bureau of Reclamation Staff)
| 题名： | Repairing Concrete with Shotcrete (A Primer for Bureau of Reclamation Staff) |
| 作者： | Todd Rutenbeck |
| 关键词： | concrete repair. shotcrete, wet-mix, dry-mix, thin repairs, reinforcement, prestressing, silica fume, concrete dams, bridges, sculpture, remote-controlled nozzle. |
| 摘要： | Shotcrete is mortar or concrete pneumatically projected at high velocity onto a surface. Shotcrete has been used in the repair of concrete for almost 90 years. There have been many successful repairs, and there have been failures. The purpose of this report is to serve as an introduction to the subject for Bureau of Reclamation (Reclamation) staff considering use of shotcrete for concrete repair. TWs report does not discuss Reclamation shotcrete projects, but discusses what has been done outside Reclamation over the past 10 years and informs Reclamation staff of current practice in the industry. This report describes the wet-mix and dry-mix shotcrete processes and the advantages of each. It describes the similarities of shotcrete to conventionally placed concreteand the differences between the two. The specific application of shotcrete technology to concrete repair is discussed. Brief summaries of a variety of projects appearing in the literature over the past 10 years are given, and other topics from the literature are listed. These projects illustrate current shotcrete technology and its versatility for concrete repair. Reclamation can continue to successfully use shotcrete as one of its methods of concrete repair if current technology is understood and shotcrete is used within its limitations. |
| 报告类型： | 科技报告 |
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