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Journal ArticleDOI

Assessment of adhesive setting time in reinforced concrete beams strengthened with carbon fibre reinforced polymer laminates

01 May 2012-Materials & Design (Elsevier)-Vol. 37, pp 64-72
TL;DR: In this paper, the effect of the adhesive setting time on the modal parameters as an indication of the effectiveness of CFRP on repaired reinforced concrete (RC) beams was investigated, and the results were compared with the adhesive technical data provided by the adhesive producer.
About: This article is published in Materials & Design.The article was published on 2012-05-01 and is currently open access. It has received 8 citations till now. The article focuses on the topics: Adhesive.

Summary (1 min read)

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Summary

  • The dynamic parameters of structural elements have been an area of interest over the last few years, especially with the increased focus on health monitoring and damage detection, which are dependent on the relation between the dynamic and physical properties of structural elements.
  • A great deal of research has focused on the use of dynamic parameters to assess and monitor the structural element performance and stiffness.
  • Some have introduced new damage detection algorithms, whilst others have discovered existing phenomena related to dynamic parameters, structural performance and stiffness [1,2].
  • A hybrid health monitoring system was proposed to detect damage in PSC girder bridges [3], where the occurrence of damage was alarmed by measuring the change in frequency responses from accelerometers mounted.

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Citations
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Journal ArticleDOI
TL;DR: In this paper, the effectiveness of carbon fiber reinforced polymers (CFRP) sheets as a flexural repair system for Reinforced Concrete (RC) beams is evaluated by monitoring the flexural stiffness recovery.

32 citations

Journal ArticleDOI
TL;DR: In this article, a statistical analysis of the design methods for calculating the load-carrying capacity of reinforced concrete elements in flexure strengthened with external FRP reinforcement is presented, and confidence intervals of the ratios of the experimental and calculated load carrying capacity are also calculated.

23 citations

Journal ArticleDOI
TL;DR: In this article, the effect of the opening diameter on CFRP repair effectiveness was examined by examining the effect on the ultimate load capacity, deflection, steel strain, CFRP laminate strain and failure modes.

7 citations

Journal ArticleDOI
TL;DR: In this paper, results of experimental research on cement glue mortars containing non-milled fly ash and organic-mineral modifiers are given, and the influence of the modifier compositions on the strength parameters of mortars for masonry stone walls, facing by ceramic tiles or gluing heat isolation materials was studied.

3 citations

Journal ArticleDOI
TL;DR: In this paper , an experimental static load test was used to assess the shear damage and ascertain the effectiveness of an externally bonded carbon-fibre-reinforced polymer (CFRP) repair system.

3 citations

References
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01 Jan 2002
TL;DR: The Emerging Technology Series as mentioned in this paper is a series of information and recommendations based on available test data, technical reports, limited experience with field applications, and the opinions of committee members, with a focus on the development and appropriate use of new and emerging technologies.
Abstract: *Co-chairs of the subcommittee that prepared this document. Note: The committee acknowledges the contribution of associate member Paul Kelley. ACI encourages the development and appropriate use of new and emerging technologies through the publication of the Emerging Technology Series. This series presents information and recommendations based on available test data, technical reports, limited experience with field applications, and the opinions of committee members. The presented information and recommendations, and their basis, may be less fully developed and tested than those for more mature technologies. This report identifies areas in which information is believed to be less fully developed, and describes research needs. The professional using this document should understand the limitations of this document and exercise judgment as to the appropriate application of this emerging technology.

2,963 citations

Journal ArticleDOI
TL;DR: In this paper, the results of an experimental program on Reinforced Concrete (RC) beams externally strengthened with carbon Fibre Reinforced Plastic (FRP) laminates and Near Surface Mounted (NSM) bars under monotonic and cyclic loads, the latter ones characterized by a low number of cycles in the elastic and post-elastic range.

233 citations

Journal ArticleDOI
TL;DR: In this article, the effects of cycles of salt fog, temperature and moisture as well as immersion in salt water on the bending response of beams externally reinforced with GFRP or CFRP, especially on bond between FRP reinforcement and concrete, were investigated.

151 citations

Journal ArticleDOI
TL;DR: In this article, an experimental assessment of several vibration based statistical time series methods for Structural Health Monitoring (SHM) is presented via their application to a lightweight aluminum truss structure.

142 citations

Journal ArticleDOI
TL;DR: In this paper, a 3D model was developed to predict the behavior of CFRP reinforced polymer (CFRP)-concrete composites under fire, and the model showed that the epoxy reached the failure point within a short time under standard fire.

129 citations

Frequently Asked Questions (3)
Q1. What is the purpose of the RC beam?

The RC beam is simply supported and subjected to flexural loading in order to simulate loading on actual RC structures such as bridge girders, beams and slabs. 

Roughness equipment is used on the tension surface to obtain a suitable face and to have as much friction as possible with the CFRP sheet. 

This is because the substrate must be sound, dry, clean and free from laitance, ice, standing water, grease, oils, old surface treatments or coatings and all loosely adhering particles.