A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigation of Field Prestress Grouting Procedures
A study was made to determine what procedures were used for mixing and placing grout in prestressed, post-tensioned structures, and what problems might be encountered. A number of field grouting operations were observed and mixing and placing data were gathered. Items given particular attention for this report were cement lumping, conduit type, and temperature. It was determined that field problems could be expected to be reduced by at least one-half if specifications were strictly adhered to. Obviously lumpy or partially hydrated cement should not be used, grout void volume was about 20% greater for the rigid (solid) duct than for the flexible duct, and that an 'end product' specification rather than limits would be desirable in regard to grout temperature. (Author)
Investigation of Field Prestress Grouting Procedures
A study was made to determine what procedures were used for mixing and placing grout in prestressed, post-tensioned structures, and what problems might be encountered. A number of field grouting operations were observed and mixing and placing data were gathered. Items given particular attention for this report were cement lumping, conduit type, and temperature. It was determined that field problems could be expected to be reduced by at least one-half if specifications were strictly adhered to. Obviously lumpy or partially hydrated cement should not be used, grout void volume was about 20% greater for the rigid (solid) duct than for the flexible duct, and that an 'end product' specification rather than limits would be desirable in regard to grout temperature. (Author)
Investigation of Field Prestress Grouting Procedures
R. E. Weaver (author) / R. J. Freeman (author)
1971
33 pages
Report
No indication
English
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