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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Cold Weather Cement Grouting and Post Tensioning -Hauser Lake Dam, Montana
Author(s): Peter Yen
Publication: Special Publication
Appears on pages(s): 153-172
Keywords: anchorage (struc
construction; concrete dams
stabilization ; strengthenin
cements; cold weather PP grouting; post-tensioning;
Abstract:Hauser Lake Dam, a concrete gravity structure originally constructed in 1911, is located on the Missouri River fourteen miles north of Helena, Montana. Based on stability analyses performed in 1978, remedial post tensioning was recommended in order to increase the dam's better withstand forces associated with se in 1979, fifteen vertical holes were drill the dam into the quartzite bedrock to a ma in order to install 55 strand tendons. Le gravel-sand mixture indurated with silt, a and inflowing water were encountered benea Cement grouting was performed to stabilize reduce the permeability of the tendon hole factor of safety to ismic events. Beginn ed through the body o ximum depth of 180 fe nses consisting of a s well as weathered r th the dam foundation these lenses and to ing f et, ock s. Because construct ion continued through the winter, special techniques were used for drilling, tendon installation, grouting and post tensioning, in ambient temperatures ranging to minus 30 degrees Fahrenheit.
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