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Title	USE OF RETROFIT LOAD TRANSFER DEVICES AND UNDERSEALING TO REHABILITATE A PCC PAVEMENT
Accession No	00725550
Authors	Wojakowski, J B; Catron, M A
Period Covered	86-93
Corp. Authors / Publisher	Kansas Department of Transportation ; Federal Highway Administration
Publication Date	19950700
Description	23 p.; Figures(11)
Languages	English
Abstract	A 1986 project evaluated bituminous undersealing and different retrofitted load transfer devices in Chase County on U.S. 50. This report follows the progress of the project from 1986 until 1993. The project consisted of two 305 m (1000 ft) test sections and one 305 m (1000 ft) control section. Test section 1 received patching and a 100 mm (4 in.) overlay and no undersealing. Test section 2 was constructed with no overlay, but it had undersealing and also contained load transfer devices. The devices used were: drilled and grouted dowel bars with patching, dowel bars placed on chairs in sawed slots, and a Double V device. The control section was constructed by regular construction techniques. The data show that undersealing gave the pavement added strength. It also helped to control the deflections of the pavement. Load transfer devices distributed forces and helped the patches last longer. The load transfer device that worked best was the Double V device. The bituminous overlay has given effective performance for more than eight years with a smoother ride than the load transfer device section.
TRT Terms	Bituminous overlays ; Concrete pavements ; Deflection ; Driver rehabilitation ; Load transfer ; Patching ; Pavement performance ; Pavements ; Retrofitting ; Sealing (Technology) ; Undersealing
Other Terms	Load transfer device; Patching (Maintenance); Pavement deflection; Rehabilitation
Subject Areas	H24 PAVEMENT DESIGN AND PERFORMANCE; I22 Design of Pavements, Railways and Guideways; I23 Properties of Road Surfaces
Contract Number	NEPT KS 8504
Report Number	FHWA-KS-95/2; Final Report
Availability	National Technical Information Service Order Number: PB96-178819
URLs	Document: http://kdot1.ksdot.org/idmws/DocContent.dll?Library=PublicDocs^dt00mx38&ID=003670472
TRIS Files	HRIS
Database	TRIS Online

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