Accession Number : ADA323737

Title :   The REMR Bulletin, Volume 14, Number 1. February 1997.

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

PDF Url : ADA323737

Report Date : FEB 1997

Pagination or Media Count : 13

Abstract : The U.S. Army Corps of Engineers operates and maintains a wide variety of hydraulic structures, including mass concrete gravity dams, rockfill dams with concrete facings, and roller-compacted concrete dams. Concrete appurtenances associated with such dams include intake towers, outlet works, and stilling basins Located at over 600 project sites through out the United States, these structures are subjected to a wide spectrum of environmental conditions. Also, the advanced age of these structures, more than 40 percent of which are over 50 years old, increase the potential for concrete deterioration. As a consequence, a two-phase contract to develop the system was awarded to Oceaneering International, Upper Marlboro, MD, and CARPI/USA, McMurray, PA, based on their respective expertise in underwater construction and geomembrane systems for dam rehabilitation. In Phase I, a conceptual design for the underwater repair system was developed based on research, material testing, and detailed evaluation of individual components and procedures. The constructibility of the design was demonstrated in Phase II through successful underwater installation of the system on a simulated concrete structure.

Descriptors :   *REPAIR, *REHABILITATION, *UNDERWATER CONSTRUCTION, *ROCKFILL DAMS, CONCRETE, DETERIORATION, HYDRAULIC EQUIPMENT, STILLING BASINS.

Subject Categories : Construction Equipment, Materials & Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE