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Title: Laboratory Evaluation of Fatigue Performance of Roller-Compacted Concrete: Bonded Concrete Overlay Composite Pavement System
Accession Number: 01088367
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Abstract: Roller compacted concrete (RCC) pavements are strong and durable, but generally have a rough riding surface. The use of a bonded concrete overlay (BCO) improves pavement smoothness. In addition, the BCO increases pavement thickness and flexural strength of the composite pavement system. Previous research evaluated different methods of bonding the BCO to the RCC base. In this project, an MTS fatigue testing machine was used to test composite sections of an RCC beam overlaid with concrete. Loss of bond strength led to premature fatigue failure of the beam. Attempts were made to improve the fatigue life of RCC by employing three alternatives: internal curing, air-entrainment, and fiber reinforcement. Air entraining RCC, in addition to being a difficult procedure, did not provide a decisive result on improving fatigue life of RCC. Internally curing RCC gave the best results by improving fatigue life and increasing overall compressive strength. The fatigue life of the RCC-BCO composite beams was generally equal to or better than that of conventional concrete pavements.
Monograph Title: Monograph Accession #: 01084478
Report/Paper Numbers: 08-1609
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Amer, NaderDelatte, Norbert JosephPagination: 13p
Publication Date: 2008
Conference:
Transportation Research Board 87th Annual Meeting
Location:
Washington DC, United States Media Type: DVD
Features: Figures; Photos; References
(10)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Subject Areas: Design; Highways; Materials; I32: Concrete
Source Data: Transportation Research Board Annual Meeting 2008 Paper #08-1609
Files: TRIS, TRB
Created Date: Jan 29 2008 3:56PM
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