Experimental study of bond of NSM-FRP reinforcement

This paper illustrates the results of an experimental study on the bending performance of concrete beams strengthened with near-surface mounted (NSM) FRP reinforcement. The critical parameter of the embedded length of NSM-FRP plates was investigated in particularly. The test results indicated that NSM-FRP reinforcement can significantly improve the strength and crack resistance capacity of the concrete beam, reducing the size of cracks. The embedded length of the NSM-FRP plate has distinct influence on the cracking and bending capacity, the flexural stiffness, and the crack developments of the concrete beam. As the embedded length increased, the bending capacity and the flexural stiffness increased correspondingly and the crack developed more intensively.

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Experimental Study on Bond Behavior between Concrete and FRP Reinforcement

Journal of Composites for Construction ◽

10.1061/(asce)1090-0268(2008)12:2(180) ◽

2008 ◽

Vol 12 (2) ◽

pp. 180-189 ◽

Cited By ~ 86

Author(s):

Carlo Pellegrino ◽

Davide Tinazzi ◽

Claudio Modena

Keyword(s):

Experimental Study ◽

Bond Behavior ◽

Frp Reinforcement

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Experimental Study on Increase of Bonding Strength of FRP Reinforcement in Concrete

10.1007/978-3-030-88166-5_15 ◽

2021 ◽

pp. 193-200

Author(s):

Furkan Taskin ◽

Cihan Ciftci

Keyword(s):

Experimental Study ◽

Bonding Strength ◽

Frp Reinforcement

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Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010013955x ◽

1995 ◽

Vol 53 ◽

pp. 636-637

Author(s):

Norio Baba ◽

Norihiko Ichise ◽

Syunya Watanabe

Keyword(s):

Experimental Study ◽

Spherical Aberration ◽

Incident Beam ◽

Optical Parameters ◽

Beam Tilting ◽

Illumination Method ◽

Restoration Method ◽

Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

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