This paper discusses a new fibrous composite known as continuous basalt fiber reinforced polymer/
plastic (BFRP). Compared with other fiber reinforced polymer/plastic, BFRP has many advantages, such
as ductility, high thermal resistance, corrosion resistance and economic cost. To test mechanical properties and
failure modes of flexural members strengthened with BFRP, flexural experiment is conducted on four two-span
T-section continuous beams strengthened with BFRP and one un-strengthened comparative beam. The experimental
result shows that the strengthened beams perform remarkably in terms of yield strength, ultimate strength
and ductility. BFRP has good prospects in retrofitting and strengthening of concrete structures which require
good ductility and corrosion resistance.
OUYANG Li-juna,b* (欧阳利军), LU Zhou-daoc (陆洲导), CHEN Wei-zhenb (陈惟珍)
. Flexural Experimental Study on Continuous Reinforced Concrete
Beams Strengthened with Basalt Fiber Reinforced Polymer/Plastic[J]. Journal of Shanghai Jiaotong University(Science), 2012
, 17(5)
: 613
-618
.
DOI: 10.1007/s12204-012-1333-6
[1] Akbarzadeh H, Maghsoudi A A. Experimental and analytical investigation of reinforced high strength concrete continuous beams strengthened with fiber reinforced polymer [J]. Materials and Design, 2010,31(3): 1130-1147.
[2] Habeeb M N, Ashour A F. Flexural behavior of continuous GFRP reinforced concrete beams [J]. Journal of Composites for Construction, 2008, 12(2): 115-124.
[3] Ashoura F, Ei-Refaie S A, Garrity S W. Flexural strengthening of RC continuous beams using CFRP laminates [J]. Cement and Concrete Composites, 2004, 26(7): 765-775.
[4] Mostafa E M, Amr E R, Ehab E S. Effect of transverse reinforcement on the flexural behavior of continuous concrete beams reinforced with FRP [J]. Journal of Composites for Construction, 2011, 15(5): 672-681.
[5] Sim J, Park C, Moon D Y. Characteristics of basalt fiber as a strengthening material for concrete structures[J]. Composites: Part B, 2005, 36(6): 504-512.
[6] Wei B, Cao H L, Song S H. Environmental resistance and mechanical performance of basalt and glass fibers [J]. Materials Science and Engineering: A, 2010,527(18): 4708-4715.
[7] Lopresto V, Leone C, Iorio I D. Mechanical characterisation of basalt fibre reinforced plastic [J]. Composites:Part B, 2011, 42(4): 717-723.
[8] Wei B, Cao H L, Song SH. Tensile behavior contrast of basalt and glass fibers after chemical treatment [J].Materials and Design, 2005, 31(9): 4244-4250.
[9] Wei B, Cao H L, Song S H. Degradation of basalt fiber and glass fiber/epoxy resin composites in seawater [J]. Corrosion Science, 2011, 53(1): 426-431.
[10] Teng Jing-guang, Chen Jian-fei, et al. FRP strengthened RC structures [M]. Beijing: China Architecture and Building Press, 2005 (in Chinese).
[11] Yang K H, Byun H Y, Ashour A F. Shear strengthening of continuous reinforced concrete T-beams using wire rope units [J]. Engineering Structures, 2009,31(5): 1154-1165.
[12] Ei-Refaie S A, Ashour A F, Garrity S W. Sagging and hogging strengthening of continuous reinforced concrete beams using carbon fiber reinforced polymer sheets [J]. ACI Structural Journal, 2003, 100(4): 446-453.
[13] Mostafa E M, Rafaby A E, Salakawy E. Flexural behavior of continuous FRP-reinforced concrete beams [J]. Journal of Composites for Construction,2010, 14(6): 669-680.
