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Experimental study of circular short columns made from reactive powder concrete
Joint Authors
Ahmad, Asma Ali
al-Khazraji, Faidhi Abd al-Rahman
Umar, Sarah Muhammad
Source
Engineering and Technology Journal
Issue
Vol. 34, Issue 9A (30 Sep. 2016), pp.7095-7107, 13 p.
Publisher
Publication Date
2016-09-30
Country of Publication
Iraq
No. of Pages
13
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
This research studies the behavior of reactive powder concrete (RPC) circular short columns with and without steel fibers of different types, as well as change of the reinforcement kinds of lateral (hoops and spiral) and the spacing between them.
The experimental work consist study of fifteen short column specimens having an overall height of 1 m with circular cross-section of 150 mm diameter are loaded at ends with concentric loads.
Six of the specimens are cast with the inclusion of steel fibers with aspect ratio of 75 (group 1), and six of other specimens are cast with the inclusion of steel fibers with aspect ratio of 100 (group 2), and the other three specimens is without steel fibers, with hybrid steel fibers and high strength concrete.
The concrete mix of fiber-reinforced samples contains 1% by volume of steel fibers of variable reinforcement longitudinal and lateral (hoops and spiral reinforcement).
Experimental data for strength, failure mode, lateral, and the ductility were obtained for each test.
The work concluded that the using of steel fibers in RPC was an effective way to prevent spalling of the concrete cover and increase the ductility and the using of high ratio of longitudinal reinforcement delays the pickling of the columns and increase strength.
The ultimate load capacity of RPC columns of spiral lateral reinforcement is greater than the load of RPC columns of tied lateral reinforcement by about 1.25 to 1.35 times for the two groups.
American Psychological Association (APA)
Ahmad, Asma Ali& al-Khazraji, Faidhi Abd al-Rahman& Umar, Sarah Muhammad. 2016. Experimental study of circular short columns made from reactive powder concrete. Engineering and Technology Journal،Vol. 34, no. 9A, pp.7095-7107.
https://search.emarefa.net/detail/BIM-723133
Modern Language Association (MLA)
Ahmad, Asma Ali…[et al.]. Experimental study of circular short columns made from reactive powder concrete. Engineering and Technology Journal Vol. 34, no. 9A (2016), pp.7095-7107.
https://search.emarefa.net/detail/BIM-723133
American Medical Association (AMA)
Ahmad, Asma Ali& al-Khazraji, Faidhi Abd al-Rahman& Umar, Sarah Muhammad. Experimental study of circular short columns made from reactive powder concrete. Engineering and Technology Journal. 2016. Vol. 34, no. 9A, pp.7095-7107.
https://search.emarefa.net/detail/BIM-723133
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 7107
Record ID
BIM-723133