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Mechanical Effect of Steel Fiber on the Cement Replacement Materials of Self-Compacting Concrete

1
Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-kharj 11942, Saudi Arabia
2
Department of Civil Engineering, College of Engineering, King Saud University, Riyadh 11362, Saudi Arabia
3
Department of Civil Engineering, College of Engineering, University of BISHA, Bisha 61922, Saudi Arabia
*
Author to whom correspondence should be addressed.
Fibers 2019, 7(4), 36; https://doi.org/10.3390/fib7040036
Received: 18 February 2019 / Revised: 16 April 2019 / Accepted: 18 April 2019 / Published: 25 April 2019
(This article belongs to the Special Issue Steel Fibre Reinforced Concrete Behaviour)
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Abstract

The behaviors of the fresh and mechanical properties of self-compacting concrete (SCC) are different from those of normal concrete mix. Previous research has investigated the benefits of this concrete mix by incorporating different constituent materials. The current research aims to develop a steel fiber reinforcement (SFR)‒SCC mixture and to study the effectiveness of different cement replacement materials (CRMs) on the fresh and mechanical properties of the SFR‒SCC mixtures. CRMs have been used to replace cement content, and the use of different water/cement ratios may lower the cost of CRMs, which include microwave-incinerated rice husk ash, silica fume, and fly ash. Fresh behavior, such as flow and filling ability and capacity segregation, was examined by a special test in SCC on the basis of their specifications. Moreover, compressive and splitting tensile strength tests were determined to simulate the hardened behavior for the concrete specimens. Experimental findings showed that, the V-funnel and L-box were within the accepted range for SCC. Tensile and flexural strength increases upon the use of 10% silica fume were found when compared with other groups; the ideal percentage of steel fiber that should be combined in this hybrid was 2% of the total weight of the binder. Overall, steel fibers generated a heightened compressive and splitting tensile strength in the self-compacting concrete mixes. View Full-Text
Keywords: self-compacting concrete; steel fiber; cement materials; microwave-incinerated rice husk ash self-compacting concrete; steel fiber; cement materials; microwave-incinerated rice husk ash
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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).
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Alabduljabbar, H.; Alyousef, R.; Alrshoudi, F.; Alaskar, A.; Fathi, A.; Mustafa Mohamed, A. Mechanical Effect of Steel Fiber on the Cement Replacement Materials of Self-Compacting Concrete. Fibers 2019, 7, 36.

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