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Repair of eroded and cavitated concrete in 9 bays of spillway and stilling basin at Bonneville Dam done behind cofferdam of pile cells that permitted unwatering entire work area; mix used for repair contained 1 1/2 in. max size aggregates with 9 bags of cement per cu yd; it had water cement ratio of 0.32 by weight and slump of 2 to 3 in.; tests show strengths of 6700 psi at 28 days.
Repair of eroded and cavitated concrete in 9 bays of spillway and stilling basin at Bonneville Dam done behind cofferdam of pile cells that permitted unwatering entire work area; mix used for repair contained 1 1/2 in. max size aggregates with 9 bags of cement per cu yd; it had water cement ratio of 0.32 by weight and slump of 2 to 3 in.; tests show strengths of 6700 psi at 28 days.
Rebuilding baffles at Bonneville
Western Construction
Johnson, W.R. (author)
Western Construction ; 30
1955
3 pages
Article (Journal)
English
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