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Polishing (abrasion) on BFRP surface aimed at increasing roughness which is beneficial to bonding quality, while chemical cleaning, including alkali wash, acid cleaning, and phosphoric acid anodizing of aluminum alloy sheet, was also applied for the same purpose.
Wu, "Fiber-element modeling for seismic performance of square RC bridge columns retrofitted with NSM BFRP bars and/or BFRP sheet confinement," Journal of Composites for Construction, vol.
BFRP is extruded from molten basalt rock at diameters generally between 13 and 20 [micro]m.
From this figure, it is revealed that the package with BFRP has no influence on the sensitivity of FBG sensors.
Experimental investigation of the mechanical and creep rupture properties of basalt fiber reinforced polymer (BFRP) bars: Doctoral dissertation, The University of Akron.
Likewise, the BFRP reinforcing material was cut to the same widths as the beams and vacuumed ready for application.
Therefore, this study reports the flexural performance of FRCM-strengthened beams with basalt fiber-reinforced polymer (BFRP) fabric.
With respect to steel bar, Basalt Fiber Reinforced Polymer (BFRP) bars present superior corrosion resistance as a kind of novel nonmetallic reinforced bars with high chemical stability [2-5].
Their paper is titled "Flexural Behavior of High-Volume Steel Fiber Cementitious Composite Externally Reinforced with Basalt FRP Sheet." Based on the study results, it is noted that the best reinforcement method of the basalt fiber sheet to the beam structures among the methods mentioned in this paper is single-layered 45[degrees] oriented method, and the maximum load ratio can not be increased consequentially with the increase of the layers and thickness of BFRP materials.
FRP bars are made from glass, carbon, aramid or basalt fibres (GFRP, CFRP, AFRP and BFRP, respectively).
Basalt fiber-reinforced polymer (BFRP) composite has also been employed in practice, for example, for post-earthquake rehabilitation and strengthening.
With the development of research and application, the shortcomings of different types of FRP include the following: (1) the ultimate tensile strain of FRP is generally not more than 3%, which cannot meet the ductility demand for concrete structures located in a region of high seismic hazard; (2) the price of carbon FRP (CFRP) cannot meet the lowcost requirements for use in civil engineering; (3) the shear strength of FRP is approximately 5% of its tensile strength, and the brittle FRP may be broken during the construction process (concrete vibration, anchoring, or bending); (4) the elastic modulus of glass FRP (GFRP) or basalt FRP (BFRP) is low, which cannot guarantee the stiffness of the corresponding concrete structures.
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