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Strength of Hollow Concrete Masonry Reinforced with Sprayed Glass-Fiber-Reinforced Polymer

Parsekian, Guilherme A. / Fonseca, Fernando S. / Shrive, Nigel G.

The results of out-of-plane strength tests on unreinforced and reinforced concrete masonry wallettes that were constructed using $190 \times 190 \times 390 - mm$ hollow concrete masonry units are reported in this paper. The reinforcement was external and was accomplished by spraying one side of the wallettes with layers of glass-fiber-reinforced polymer (GFRP). Eight unreinforced and 28 reinforced wallettes were constructed and tested in four-point bending spanning either vertically or horizontally. Twelve additional reinforced wallettes were constructed but tested cantilevered from either the bottom or one of the sides and loaded either along the top or along the nonsupported side. Overall, the results indicate that the strength of unreinforced masonry can be greatly improved by external reinforcement. The behavior of the wallettes is also discussed, with the most worrisome observed behavior being the failure of the webs of the masonry units in the direction parallel to the direction of the applied loads. As part of the research, simplified models to predict the capacity of hollow concrete masonry externally reinforced with sprayed GFRP were also developed and presented in this paper.

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Strength of Hollow Concrete Masonry Reinforced with Sprayed Glass-Fiber-Reinforced Polymer

Parsekian, Guilherme A. / Fonseca, Fernando S. / Shrive, Nigel G.

The results of out-of-plane strength tests on unreinforced and reinforced concrete masonry wallettes that were constructed using $190 \times 190 \times 390 - mm$ hollow concrete masonry units are reported in this paper. The reinforcement was external and was accomplished by spraying one side of the wallettes with layers of glass-fiber-reinforced polymer (GFRP). Eight unreinforced and 28 reinforced wallettes were constructed and tested in four-point bending spanning either vertically or horizontally. Twelve additional reinforced wallettes were constructed but tested cantilevered from either the bottom or one of the sides and loaded either along the top or along the nonsupported side. Overall, the results indicate that the strength of unreinforced masonry can be greatly improved by external reinforcement. The behavior of the wallettes is also discussed, with the most worrisome observed behavior being the failure of the webs of the masonry units in the direction parallel to the direction of the applied loads. As part of the research, simplified models to predict the capacity of hollow concrete masonry externally reinforced with sprayed GFRP were also developed and presented in this paper.

Strength of Hollow Concrete Masonry Reinforced with Sprayed Glass-Fiber-Reinforced Polymer

Parsekian, Guilherme A. / Fonseca, Fernando S. / Shrive, Nigel G.

The results of out-of-plane strength tests on unreinforced and reinforced concrete masonry wallettes that were constructed using $190 \times 190 \times 390 - mm$ hollow concrete masonry units are reported in this paper. The reinforcement was external and was accomplished by spraying one side of the wallettes with layers of glass-fiber-reinforced polymer (GFRP). Eight unreinforced and 28 reinforced wallettes were constructed and tested in four-point bending spanning either vertically or horizontally. Twelve additional reinforced wallettes were constructed but tested cantilevered from either the bottom or one of the sides and loaded either along the top or along the nonsupported side. Overall, the results indicate that the strength of unreinforced masonry can be greatly improved by external reinforcement. The behavior of the wallettes is also discussed, with the most worrisome observed behavior being the failure of the webs of the masonry units in the direction parallel to the direction of the applied loads. As part of the research, simplified models to predict the capacity of hollow concrete masonry externally reinforced with sprayed GFRP were also developed and presented in this paper.

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Title:

Strength of Hollow Concrete Masonry Reinforced with Sprayed Glass-Fiber-Reinforced Polymer

Contributors:

Parsekian, Guilherme A. (author) / Fonseca, Fernando S. (author) / Shrive, Nigel G. (author)

Published in:

Journal of Composites for Construction ; 18

Publication date:

2014-03-10

ISSN:

1090-0268 , 1943-5614

DOI:

https://doi.org/10.1061/(ASCE)CC.1943-5614.0000475

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

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