Flexural Behavior of Rubberized Concrete for Cold Regions Applications
This research focused on the study of flexural load-deflection behavior of rubber in concrete composite (RCC) up to first-crack load. Specifically, this study involved an experimental method to examine simultaneous flexural load-deflection response measurements on normal Portland cement concrete and rubberized concrete. Other basic tests were addressed to characterize the fresh mix and constituent material properties. Regression models were developed to predict the first-crack load at different mix combinations of crumb rubber. Results from this investigation showed that the incorporation of crumb rubber inherits the elastic property to concrete. The flexural load-deflection response tests showed that RCC beams exhibited a significant increase in net deflection compared to that at 50% of the PCC first-crack load. First net deflection for RCC beams did not show a similar increase due to the lower first-crack load. The results indicate the inclusion of the crumbed rubber in Portland cement concrete will reduce the brittleness of this material and in turn improves the concrete toughness. However, it will reduce the overall compressive as well as the tensile strength. This makes rubberized concrete ideal for non-structural use in cold regions in resisting extreme temperatures and the cycles of freezing and thawing. Using rubberized concrete for structure elements require the inclusion of fiber additives to compensate for the strength reduction and further improve the toughness properties even beyond the first-crack load.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784481554
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Supplemental Notes:
- © 2018 American Society of Civil Engineers.
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Abaza, Osama A
- Hussein, Zaid S
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Conference:
- International Conference on Transportation and Development 2018
- Location: Pittsburgh Pennsylvania, United States
- Date: 2018-7-15 to 2018-7-18
- Publication Date: 2018-7
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 119-128
- Monograph Title: International Conference on Transportation and Development 2018: Airfield and Highway Pavements
Subject/Index Terms
- TRT Terms: Composite pavements; Crumb rubber; Deflection; Flexural strength; Frigid regions; Portland cement concrete
- Subject Areas: Environment; Highways; Materials; Pavements;
Filing Info
- Accession Number: 01867816
- Record Type: Publication
- ISBN: 9780784481554
- Files: TRIS, ASCE
- Created Date: Dec 16 2022 5:08PM