FRP-confined concrete columns with a stress reduction-recovery behavior: A state-of-the-art review, design recommendations and model assessments

Liao, JinJing; Zeng, Jun-Jie; Zhuge, Yan; Zheng, Yu; Ma, Guowei; Zhang, Lihai

doi:10.1016/j.compstruct.2023.117313

Cited by 15 publications

(2 citation statements)

References 142 publications

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“…This high reactivity allows silica fume to generate a substantial amount of calcium silicate hydrate (C-S-H) gel, filling in the pores of the concrete. This filling of pores enhances the surface quality of the concrete [41]. Moreover, the addition of silica fume effectively inhibits the uplift of fly ash, and improves the surface color of concrete and enhances its mirror effect.…”

Section: Compound Mixing Of Fly Ash and Slag Powdermentioning

confidence: 99%

A Review of Effect of Mineral Admixtures on Appearance Quality of Fair-Faced Concrete and Techniques for Their Measurement

Mao,

He,

et al. 2023

Sustainability

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The appearance of fair-faced concrete is crucial, and it can be enhanced by incorporating an appropriate amount of mineral admixture. Different mineral admixtures have varying effects on the appearance quality of fair-faced concrete. For instance, the addition of fly ash helps control color differences and bubble formation on the concrete surface, while slag powder effectively controls its color and finish. In this review, the impact of using various mineral admixtures, such as silica fume, rice husk ash, limestone powder, and seashell powder, in fair-faced concrete on its appearance quality is examined. The effective combination of mineral admixtures made from industrial by-products or solid waste with fair-faced concrete can pave the way for new directions in the green and sustainable development of construction materials. This review also discusses the difficulties in objectively measuring the appearance quality of concrete and the various methods for the acquisition and evaluation of appearance images. New techniques for acquiring and evaluating information about concrete surfaces have been developed with advancements in image acquisition and processing technology. These techniques complement traditional manual inspection methods. The 3D Alicona system is advantageous for identifying air bubbles on concrete surfaces, the atomic-force microscope detects surface roughness, and the Orbital large-format scanner is ideal for use in large-scale engineering applications. Also, evaluation methods for different image processing software are presented in this article. This information offers a useful reference for future research and practical application.

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Section: Compound Mixing Of Fly Ash and Slag Powdermentioning

confidence: 99%

A Review of Effect of Mineral Admixtures on Appearance Quality of Fair-Faced Concrete and Techniques for Their Measurement

Mao,

He,

et al. 2023

Sustainability

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“…When the f 1 / f ′ co of FRP-confined concrete was greater than 0.13, the stress-strain curve had no softening section, otherwise, the stress-strain curve had a softening section. Liao et al (2023b) explored the root cause of the axial compression stress reduction-recovery behavior of FRP-confined concrete short columns, and determined the five root causes of stress reduction: 1) concrete core brittleness; 2) concrete core shrinkage; 3) nonuniform confinement due to the column shape; 4) insufficient confinement due to the characteristics of FRP materials or fiber orientations; and 5) the arching action. For the remedies, increasing FRP confinement level appears to be a uniform technique except for concrete core shrinkage, whereas increasing steel fiber content and corner radius ratio are more efficient for specimens with brittle concrete cores and specimens in square and rectangular columns, respectively.…”

Section: Figurementioning

confidence: 99%

A review study on axial compression properties of UHPC columns confined by FRP

Song,

Zhang,

You

et al. 2024

Front. Mater.

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The failure of ultra-high performance concrete (UHPC) under axial compression has significant brittleness, so it is necessary to use fiber reinforced polymer (FRP) to constrain UHPC for achieving ductile failure. This article mainly summarized the research progress of FRP constrained UHPC columns, analyzed the influence of different variables on the compressive performance of FRP-confined UHPC columns and the coupling effect between variables, compared the axial compressive stress-strain models of FRP-confined UHPC columns proposed by previous scholars, and evaluated the existing models using a large amount of collected experimental data. The evaluation results indicated that the existing models provided relatively accurate predictions for ultimate stress, but further improvement and correction are needed for predicting ultimate strain. Based on the data collected in this study, the models had been modified, resulting in improved accuracy in predicting both ultimate stress and ultimate strain.

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Multiscale Study on the Axial Compression Performance of PET FRP–Concrete–Steel Double-Skin Tubular Stub Columns

Liu,

Du,

Gao

et al. 2024

Int J Civ Eng

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FRP-confined concrete columns with a stress reduction-recovery behavior: A state-of-the-art review, design recommendations and model assessments

Cited by 15 publications

References 142 publications

A Review of Effect of Mineral Admixtures on Appearance Quality of Fair-Faced Concrete and Techniques for Their Measurement

A Review of Effect of Mineral Admixtures on Appearance Quality of Fair-Faced Concrete and Techniques for Their Measurement

A review study on axial compression properties of UHPC columns confined by FRP

Multiscale Study on the Axial Compression Performance of PET FRP–Concrete–Steel Double-Skin Tubular Stub Columns

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