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Structural Grouting to Repair Large Power Plant Foundation
Faulty concrete in a new 3-meter- (10-foot-) thick, heavily reinforced foundation for a power plant required construction to stop. Pressure grouting was selected as the most effective remedial method as appropriate grout hole testing could supplement the investigation findings and, if systematically performed, both identify the faulty conditions and verify their correction. A regular grid of grout holes was drilled, pressure tested, and categorized for further treatment. Depending upon the water test results, the holes were pressure grouted, vacuum grouted, or simply tremie filled with a pre-blended ultrafine cementitious grout. Secondary and tertiary holes were added to the work where behavior of the primary holes left doubt as to the resulting conditions. The repaired foundation was accepted by the design engineer and owner, after virtual no-take in successive grout holes and further verification core holes indicated all substantial voids had been filled.
Structural Grouting to Repair Large Power Plant Foundation
Faulty concrete in a new 3-meter- (10-foot-) thick, heavily reinforced foundation for a power plant required construction to stop. Pressure grouting was selected as the most effective remedial method as appropriate grout hole testing could supplement the investigation findings and, if systematically performed, both identify the faulty conditions and verify their correction. A regular grid of grout holes was drilled, pressure tested, and categorized for further treatment. Depending upon the water test results, the holes were pressure grouted, vacuum grouted, or simply tremie filled with a pre-blended ultrafine cementitious grout. Secondary and tertiary holes were added to the work where behavior of the primary holes left doubt as to the resulting conditions. The repaired foundation was accepted by the design engineer and owner, after virtual no-take in successive grout holes and further verification core holes indicated all substantial voids had been filled.
Structural Grouting to Repair Large Power Plant Foundation
Warner, James (author)
Proceedings of the Fourth International Conference on Grouting and Deep Mixing ; 2012 ; New Orleans, Louisiana, United States
Grouting and Deep Mixing 2012 ; 738-746
2012-08-17
Conference paper
Electronic Resource
English
Piles , Mixing , Grouting , Highways and roads , Chemical grouting , Power plants , Anchors , Cement , Rehabilitation , Foundations , Cutoffs , Hydraulic structures
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