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- 2007414128 abstract "Joints are always a concern in the construction and long-term performance of concrete pavements. Research has shown that we need some type of positive load transfer across transverse joints. The same research has directed pavement designers to use round dowels spaced at regular intervals across the transverse joint to distribute the vehicle loads both longitudinally and transversely across the joint. The goal is to reduce bearing stresses on the dowels and the two pavement slab edges and erosion of the underlying surface, hence improved long-term joint and pavement structure performance. Road salts cause metal corrosion in doweled joints, excessive bearing stresses hollow dowel ends, and construction processes are associated with cracking pavement at the end of dowels. Dowels are also a cost factor in the pavement costs when joint spacing is reduced to control curling and warping distress in pavements. Designers desire to place adequate numbers of dowels spaced at the proper locations to handle the anticipated loads and bearing stresses for the design life of the pavement. This interim report is the second of three reports on the evaluation of elliptical steel dowels. This report consists of an update on the testing and performance of the various shapes and sizes of dowels. It also documents the results of the first series of performance surveys and draws interim conclusions about the performance of various bar shapes, sizes, spacings, and basket configurations. In addition to the study of elliptical steel dowel performance, fiber reinforced polymers (FRP) are also tested as elliptical dowel material (in contrast to steel) on a section of the highway construction north of the elliptical steel test sections.".
- 2007414128 contributor B10936447.
- 2007414128 contributor B10936448.
- 2007414128 contributor B10936449.
- 2007414128 created "2006.".
- 2007414128 date "2006".
- 2007414128 date "2006.".
- 2007414128 dateCopyrighted "2006.".
- 2007414128 description "Interim report.".
- 2007414128 description "Joints are always a concern in the construction and long-term performance of concrete pavements. Research has shown that we need some type of positive load transfer across transverse joints. The same research has directed pavement designers to use round dowels spaced at regular intervals across the transverse joint to distribute the vehicle loads both longitudinally and transversely across the joint. The goal is to reduce bearing stresses on the dowels and the two pavement slab edges and erosion of the underlying surface, hence improved long-term joint and pavement structure performance. Road salts cause metal corrosion in doweled joints, excessive bearing stresses hollow dowel ends, and construction processes are associated with cracking pavement at the end of dowels. Dowels are also a cost factor in the pavement costs when joint spacing is reduced to control curling and warping distress in pavements. Designers desire to place adequate numbers of dowels spaced at the proper locations to handle the anticipated loads and bearing stresses for the design life of the pavement. This interim report is the second of three reports on the evaluation of elliptical steel dowels. This report consists of an update on the testing and performance of the various shapes and sizes of dowels. It also documents the results of the first series of performance surveys and draws interim conclusions about the performance of various bar shapes, sizes, spacings, and basket configurations. In addition to the study of elliptical steel dowel performance, fiber reinforced polymers (FRP) are also tested as elliptical dowel material (in contrast to steel) on a section of the highway construction north of the elliptical steel test sections.".
- 2007414128 description "Sponsored by the U.S. Federal Highway Administration and the Iowa Dept. of Transportation project DTFH6103C00119".
- 2007414128 extent "1 v. (various pagings) :".
- 2007414128 identifier 2007414128.html.
- 2007414128 issued "2006".
- 2007414128 issued "2006.".
- 2007414128 language "eng".
- 2007414128 publisher "Ames, Iowa : Center for Transportation Research and Education, Iowa State University,".
- 2007414128 spatial "Iowa".
- 2007414128 subject "Dowels (Fasteners). trt".
- 2007414128 subject "Load transfer. trt".
- 2007414128 subject "Pavement joints. trt".
- 2007414128 subject "Pavements, Concrete Iowa Testing.".
- 2007414128 subject "TE278 .C33 2006".
- 2007414128 title "Field evaluation of elliptical steel dowel performance / by James K. Cable ; research assistants, Stacia L. Totman, Nathan Pierson.".
- 2007414128 type "text".