eprintid: 20454 rev_number: 14 userid: 2915 dir: disk0/00/02/04/54 datestamp: 2014-06-16 19:06:28 lastmod: 2016-11-15 14:17:13 status_changed: 2014-06-16 19:06:28 type: thesis_degree metadata_visibility: show contact_email: barmanmanik@gmail.com item_issues_id: similar_title_20441 item_issues_type: similar_title item_issues_description: Similar title to Barman, Manik JOINT PERFORMANCE CHARACTERIZATION OF BONDED WHITETOPPING OVERLAYS. Doctoral Dissertation, University of Pittsburgh. item_issues_timestamp: 2014-01-29 07:21:38 item_issues_status: autoresolved item_issues_count: 0 eprint_status: archive creators_name: BARMAN, MANIK creators_email: barmanmanik@gmail.com title: Joint Performance Characterization of Bonded Whitetopping Overlays ispublished: unpub divisions: sch_eng_civilenvironmental full_text_status: public keywords: Bonded concrete overlay, whitetopping, load transfer, LTE, Dissipated energy, Fatigue, Inter layer bonding, Joint performance, BALT, SALT note: Please check this version.Thanks abstract: Poor joint performance in whitetopping overlays increases the magnitude of the interlayer debonding stress and load related stress, which can result in corner and longitudinal cracks. However, currently available whitetopping design procedures do not account for the joint performance. Fiber reinforced concrete (FRC) is commonly used in constructing these overlays but the contribution of the fiber to load transfer has never been quantified either. Under the scope of this dissertation, a new, economical, small-scale joint performance characterization procedure (BALT) was developed. The results from the BALT procedure were validated by comparing them to the results from large scale joint performance tests (SALT). The joint performances of one plain concrete (PC) and two FRC mixtures were characterized with respect to mixture type, crack width and number of load cycles. Load transfer efficiency (LTE) and dissipated energy ratio (DER) prediction models were developed for all the mixtures. It was found that FRC provides a 15 to 25 percent higher joint performance as compared to PC. The fiber plays a larger role in load transfer when the joint is fatigued. Interestingly fibers do not fatigue even after 10 million load cycles. Using finite element analysis, a relationship was developed for determining the joint stiffness (AGG*) for whitetopping overlay. It was found that the load-related stress can be reduced by 6 percent with application of FRC while the interface debonding stress can be reduced by 50 to 72 percent. date: 2014-06-16 date_type: published pages: 390 institution: University of Pittsburgh refereed: TRUE etdcommittee_type: committee_chair etdcommittee_type: committee_member etdcommittee_type: committee_member etdcommittee_type: committee_member etdcommittee_name: Vandenbossche, Julie, M. etdcommittee_name: Janssen, Donald, J. etdcommittee_name: Brigham, John etdcommittee_name: Vallejo, Luis, E. etdcommittee_email: jmv7@pitt.edu etdcommittee_email: dnjan@msn.com etdcommittee_email: brigham@pitt.edu etdcommittee_email: vallejo@pitt.edu etdcommittee_id: JMV7 etdcommittee_id: etdcommittee_id: BRIGHAM etdcommittee_id: VALLEJO etd_defense_date: 2013-11-08 etd_approval_date: 2014-06-16 etd_submission_date: 2014-01-28 etd_release_date: 2014-06-16 etd_access_restriction: immediate etd_patent_pending: FALSE thesis_type: dissertation degree: PhD citation: BARMAN, MANIK (2014) Joint Performance Characterization of Bonded Whitetopping Overlays. Doctoral Dissertation, University of Pittsburgh. (Unpublished) document_url: http://d-scholarship-dev.library.pitt.edu/20454/1/BARMAN_ETD_2014.pdf