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 OJCE  Vol.6 No.4 , September 2016
Study on Strengthening of RC Slabs with Different Innovative Techniques
Tarek Ali1, Sameh Yehia2
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Abstract: This paper presents a focused study on using different methods to enhance the ultimate capacity of flexural behavior in RC slabs. Four RC specimens were casted with common compressive strength and reinforced with steel mesh. Specimens were strengthened with different methods such as usage of GFRP sheets, carbon fibers laminate strips and near surface mounted steel rebars. All specimens were subjected to two-point loading setup. Load was increased from zero to failure load. First crack was recorded and crack pattern was observed. The behavior of strengthened specimens was compared to that of the control specimen to judge the efficiency of the used techniques. Test results showed that the used techniques were effective in enhancing the behavior of the strengthened slabs by noteworthy values.
Keywords: Slab Strengthening, GFRP Sheets, Carbon Fiber Laminate Strips, Near Surface Mounted Rebars
Cite this paper: Ali, T. and Yehia, S. (2016) Study on Strengthening of RC Slabs with Different Innovative Techniques. Open Journal of Civil Engineering, 6, 516-525. doi: 10.4236/ojce.2016.64044.
References

[1]   Yehia, S. (2015) Behavior of Low Compressive Strength Short Columns Strengthened with External GFRP Strips/Jacket Techniques. International Journal of Technology Enhancements and Emerging Engineering Research (IJTEEE), 3, 1-5.
http://www.ijteee.org/research-paper-publishing/month/apr2015.html

[2]   Ghanem, G., El-Bakey, S.A., Ali, T. and Yehia, S. (2016) Behavior of RC Beams Retrofitted/Strengthened with External Post-Tension System. International Journal of Civil, Mechanical and Energy Science (IJCMES), 2, 36-43.
http://ijcmes.com/issue-detail/vol-2-issue-1/

[3]   Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures. ACI: 440.7R-10.

[4]   Bonaldo, E., Oliveira de Barros, J.A.O. and Lourenço, P.B. (2008) Efficient Strengthening Technique to Increase the Flexural Resistance of Existing RC Slabs. Journal of Composites for Construction, 12, 149-159.
http://dx.doi.org/10.1061/(ASCE)1090-0268(2008)12:2(149)
http://ascelibrary.org/doi/abs/10.1061/(ASCE)1090-0268(2008)12%3A2(149)

[5]   British Standard for Concrete Mix Design. BS 5328—Concrete, Part 2, Methods for Specifying Concrete Mixes.

 
 
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