Monolith Joint Repairs: Case Histories
Abstract
The Corps of Engineers currently operates and maintains 545 dams and 269 lock chambers at 605 sites. These structures are routinely exposed to deleterious forces, such as impact and abrasion damage from navigation traffic. In addition, nearly one-half of the 269 lock chambers were built prior to 1940 or before concrete was intentionally air-entrained. Seventy-eight percent of these nonair-entrained locks are located in the Corps' North Central and Ohio River Divisions where they are subjected to many cycles of freezing and thawing. Monolith joints are the fourth most common location for deficiencies in dams and the third for locks. The objective of this study was to identify materials and techniques used to repair deteriorated monolith joints, excluding joint sealant failures or seepage. A secondary objective was the identification of areas in which further research is needed to supplement existing technology. Information on the repair of monolith joints for the seven case histories was obtained through (a) review of the US Army Engineer Waterways Experiment Station damage and repair data base for Corps Civil Works Structures, (b) review of periodic inspection reports, (c) visits to project sites, and (d) discussion with project personnel.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1989
- Accession Number
- ADA212814
Entities
People
- James E. McDonald
- James G. May