Next Article in Journal
Physicochemical, Mineralogical and Microscopic Evaluation of Sustainable Bricks Manufactured with Construction Wastes
Previous Article in Journal
A Rolling Bearing Fault Diagnosis Method Based on Variational Mode Decomposition and an Improved Kernel Extreme Learning Machine
Article Menu
Issue 10 (October) cover image

Export Article

Open AccessArticle
Appl. Sci. 2017, 7(10), 1011; doi:10.3390/app7101011

Effect of Steel Fiber and Different Environments on Flexural Behavior of Reinforced Concrete Beams

1
School of Civil Engineering, Iran University of Science and Technology, Tehran 98021, Iran
2
Department of Civil Engineering, School of Engineering, Hakim Sabzevari University, Sabzevar 980571, Iran
*
Author to whom correspondence should be addressed.
Received: 14 August 2017 / Revised: 16 September 2017 / Accepted: 26 September 2017 / Published: 30 September 2017
View Full-Text   |   Download PDF [1814 KB, uploaded 16 October 2017]   |  

Abstract

The main kind of deterioration in marine Reinforced Concrete (RC) structures and other infrastructures is steel bar corrosion due to cracks in concrete surfaces, which leads to the reduction of the load carrying capacity, ductility, and structural safety. It seems that steel fibers can reduce and delay the cracking, and increase the flexural strength and ductility of marine RC structures. To do so, in marine atmosphere and the tidal zone of the Oman Sea and fresh water, the flexural behavior of beams containing Plain Concrete (PC), Concrete with Steel fiber Reinforcement (SFRC), RC, Concrete with Steel fiber, and bar Reinforcement ((R+S)C) at 28, 90 and 180 days were determined. Beams were 99 un-cracked and pre-cracked beams, with dimensions of 200 × 200 × 750 mm. Based on results and at 180 days, the flexural strength and toughness of pre-cracked (R+S)C beams were 22%–43% higher than the pre-cracked RC beams. The effect of steel fiber on the increment of load capacity and the toughness of pre-cracked RC beams were approximately the same. By addition of steel fiber to un-cracked RC beams, load capacity and toughness were increased up to 20%. The load capacity and toughness in marine atmosphere and tidal zone were approximately 15% lower than the fresh water condition. View Full-Text
Keywords: load capacity; toughness; Service Stiffness; steel fiber; marine environment load capacity; toughness; Service Stiffness; steel fiber; marine environment
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Barkhordari Bafghi, M.A.; Amini, F.; Safaye Nikoo, H.; Sarkardeh, H. Effect of Steel Fiber and Different Environments on Flexural Behavior of Reinforced Concrete Beams. Appl. Sci. 2017, 7, 1011.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top