Experimental study on bond behavior between rusty steel reinforcement and concrete
Other Title(s)
دراسة تجريبية حول سلوك الربط بين حديد التسليح الصدأ و الخرسانة
Joint Authors
Majid, Farid Hamid
Khalaf, Majid Ashur
Source
Tikrit Journal of Engineering Sciences
Issue
Vol. 25, Issue 2 (30 Jun. 2018), pp.40-51, 12 p.
Publisher
Tikrit University Colleg of Engineering
Publication Date
2018-06-30
Country of Publication
Iraq
No. of Pages
12
Main Subjects
Abstract EN
The effect of rust of the reinforcement bars on the bond and slip behavior between the rebars and the surrounding concrete is still under research judgement.
This paper, investigated the effect of ranges of rebar rusting (0, 30-50% and 70-90%) of the limits of losing in mass that specified in the ASTM standard (6% of bar nominal mass) combined with other main parameters that affect the bond and slip behavior.
A number of 72 pullout prepared specimens were tested.
The studied parameters were using normal and high strength concrete (31 MPa and 76 MPa), different bars diameters (12, 16 and 25 mm), the change of embedment length (150 and 300 mm) and the using of bond epoxy coating for embedded length of reinforcing bars.
The results showed that the rust within certain amount of permissible losing of mass (about 50%) led to increase the bond strength and decrease the slip between reinforcement bars and concrete.
However, increasing rusting above 50% but within the permissible losing in mass would slightly decrease the bond strength and increase the slip comparing with zero rusting case for all tested bar sizes with and without using the bond improvement factors.
The main recommendation of the study is to use the same criterion of acceptance of losing in mass specified by ASTM as the acceptance criterion of the amount of rust in the reinforcement bars and using one of the studied improvement fac
American Psychological Association (APA)
Khalaf, Majid Ashur& Majid, Farid Hamid. 2018. Experimental study on bond behavior between rusty steel reinforcement and concrete. Tikrit Journal of Engineering Sciences،Vol. 25, no. 2, pp.40-51.
https://search.emarefa.net/detail/BIM-939281
Modern Language Association (MLA)
Khalaf, Majid Ashur& Majid, Farid Hamid. Experimental study on bond behavior between rusty steel reinforcement and concrete. Tikrit Journal of Engineering Sciences Vol. 25, no. 2 (2018), pp.40-51.
https://search.emarefa.net/detail/BIM-939281
American Medical Association (AMA)
Khalaf, Majid Ashur& Majid, Farid Hamid. Experimental study on bond behavior between rusty steel reinforcement and concrete. Tikrit Journal of Engineering Sciences. 2018. Vol. 25, no. 2, pp.40-51.
https://search.emarefa.net/detail/BIM-939281
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-939281