American Journal of Civil Engineering and Architecture
ISSN (Print): 2328-398X ISSN (Online): 2328-3998 Website: http://www.sciepub.com/journal/ajcea Editor-in-chief: Dr. Mohammad Arif Kamal
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American Journal of Civil Engineering and Architecture. 2016, 4(6), 189-198
DOI: 10.12691/ajcea-4-6-1
Open AccessArticle

Quantification of Benefits of Steel Fiber Reinforcement for Rigid Pavement

M. A. Kamel1,

1Public Works Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt

Pub. Date: October 27, 2016

Cite this paper:
M. A. Kamel. Quantification of Benefits of Steel Fiber Reinforcement for Rigid Pavement. American Journal of Civil Engineering and Architecture. 2016; 4(6):189-198. doi: 10.12691/ajcea-4-6-1

Abstract

In the present study, strength parameters of steel fibers reinforced concrete (SFRC) were investigated. Their load carrying capacity and deflection characteristics were also evaluated and compared with those of Plain Cement Concrete (PCC). Three different concrete mixes were chosen. One is of PCC and two mixes are of SFRC with fibers content of 4% and 8% of cement weight. Tests on fresh concrete were conducted like, slump test, compaction factor test and Ve. Be. Test. Other tests were conducted on hardened concrete like, compressive strength, flexural strength, modulus of elasticity, indirect tensile strength and ultrasonic pulse velocity. Results leaded to design a SFRC mix with 8% steel fiber content for further tests. Moreover, plate load tests were conducted on pavement model slabs of PCC and SFRC casted and arranged over a prepared subgrade sandy soil in a model tank. Results revealed that the first crack load carrying capacity of SFRC slabs has enhanced by 19%, 15% and 7% for corner, edge and center loading respectively. Also, the failure load has increased for SFRC than for PCC in such a way that it has become 1.13, 1.08 1nd 1.05 for corner, edge and center loadings of the pavement model slabs. Similarly, deflections corresponding to first crack load were also increased for SFRC. A concept was adopted to quantify the benefits of adding steel fibers to PCC in terms of extension of the pavement service life and also in terms of reduction in the concrete thickness for the same service life of both reinforced and unreinforced concrete pavement sections.

Keywords:
Steel Fibers Concrete Pavements Service Life Ratio Layer Thickness Reduction

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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