A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design, Construction, and Analysis of CRCP Patching Techniques in Illinois
Continuously reinforced concrete pavements (CRCP) are difficult to patch, and patches often do not perform as well as expected. In an effort to improve patch performance, several alternative designs were constructed within five rehabilitation projects on FAI Routes 55 and 57 in Illinois. Alternatives included subdrainage of the patch, addition of steel fiber to the concrete, addition of transverse reinforcement, use of high early strength concrete, and the use of large (No. 11) rebars grouted into the adjacent pavement. In addition to these experimental patches, many 'conventional' CRCP patches were constructed. The performance of 500 pathes were monitored for 20 months. It was concluded that: The conventional CRCP patch provided relatively good performance; Subdrainage of the patch caused other problems that resulted in early failures; Patches with steel fibers performed only slightly better than the standard patch; and Addition of transverse reinforcement greatly reduced failures. As a result of the study, Illinois has modified its patching standard to include transverse reinforcement bars at a nominal spacing of 12 inches.
Design, Construction, and Analysis of CRCP Patching Techniques in Illinois
Continuously reinforced concrete pavements (CRCP) are difficult to patch, and patches often do not perform as well as expected. In an effort to improve patch performance, several alternative designs were constructed within five rehabilitation projects on FAI Routes 55 and 57 in Illinois. Alternatives included subdrainage of the patch, addition of steel fiber to the concrete, addition of transverse reinforcement, use of high early strength concrete, and the use of large (No. 11) rebars grouted into the adjacent pavement. In addition to these experimental patches, many 'conventional' CRCP patches were constructed. The performance of 500 pathes were monitored for 20 months. It was concluded that: The conventional CRCP patch provided relatively good performance; Subdrainage of the patch caused other problems that resulted in early failures; Patches with steel fibers performed only slightly better than the standard patch; and Addition of transverse reinforcement greatly reduced failures. As a result of the study, Illinois has modified its patching standard to include transverse reinforcement bars at a nominal spacing of 12 inches.
Design, Construction, and Analysis of CRCP Patching Techniques in Illinois
P. F. Jenkins (author)
1998
68 pages
Report
No indication
English
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