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Title: Factors Affecting Pull-out Strength in Continuously Reinforced Concrete Pavements
Accession Number: 01124419
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Abstract: This research presents the results of an experimental investigation to identify the significant factors influencing concrete/rebar bond failures resulting in cracking of continuously reinforced concrete pavements (CRCP). Water to cement ratio, rebar temperature at the time of concrete pouring, and rebar surface condition (as-received vs. corroded) were factors investigated in this research. Water to cement ratio (w/c), rebar temperature, and presence of corrosion products on rebar surface have a significant influence on the rebar-concrete bond strength. The 28-day shear strength measurements showed an increase in rebar-concrete bond strength as the water-to-cement ratio (w/c) was reduced from 0.50 to 0.40. There was a reduction in the peak pullout load as the rebar temperatures increased from 14oF to 252oF for the corroded and non-corroded rebar experiments. The corroded rebar pullout test results showed a 20-50% reduction in bond strength compared to the non-corroded rebars.
Monograph Title: Monograph Accession #: 01120148
Report/Paper Numbers: 09-0764
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Nasrazadani, SeifollahPagination: 12p
Publication Date: 2009
Conference:
Transportation Research Board 88th Annual Meeting
Location:
Washington DC, United States Media Type: DVD
Features: Figures; Photos; References
(9)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Subject Areas: Highways; Materials; Pavements; I32: Concrete
Source Data: Transportation Research Board Annual Meeting 2009 Paper #09-0764
Files: TRIS, TRB
Created Date: Jan 30 2009 5:00PM
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