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      Shaking Table Test of U-Shaped Walls Made of Fiber-Reinforced Foamed Concrete

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          Abstract

          Fiber-reinforced foamed concrete (FRFC) is a lightweight material that has the potential to perform well in seismic applications due to its low density and improved mechanical properties. However, studies focused on the seismic assessment of this material are limited. In this work, U-shaped wall specimens, made of FRFC reinforced with henequen fibers and plain foamed concrete (PFC) with a density of 900 kg/m 3, were subjected to shaking table tests. PFC and FRFC were characterized using compression and tension tests. FRFC exhibited enhanced mechanical properties, which were attributed to the fibers. The dynamic tests showed that U-shaped walls made of FRFC performed better than those made of PFC. The time period prior to the collapse of the FRFC U-shaped walls was longer than that of the PFC specimens, which was attributed to the enhanced specimen integrity by the fibers. Finite element simulations of the shaking table test allowed for the prediction of the stress concentration and plastic strain that may lead to the failure of the U-shaped wall. These results showed that U-shaped walls made of FRFC have the potential to perform well in seismic applications, however, these results are preliminary and further studies are needed to support the findings of this work.

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          Effect of fiber surface treatment on the fiber–matrix bond strength of natural fiber reinforced composites

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            Properties and applications of foamed concrete; a review

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                Author and article information

                Journal
                Materials (Basel)
                Materials (Basel)
                materials
                Materials
                MDPI
                1996-1944
                03 June 2020
                June 2020
                : 13
                : 11
                : 2534
                Affiliations
                [1 ]CONACYT-Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43, No. 130 Col. Chuburná de Hidalgo, Mérida, Yucatán 97205, Mexico
                [2 ]Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43, No. 130 Col. Chuburná de Hidalgo, Mérida, Yucatán 97205, Mexico; brenda.company@ 123456cicy.mx (B.A.C.-R.); juan.koh@ 123456cicy.mx (J.F.K.-D.); jgcb@ 123456cicy.mx (J.G.C.)
                [3 ]Tecnológico Nacional de México/Instituto Tecnológico de Mérida, Av. Tecnológico km 4.5, Mérida, Yucatán 97118, Mexico
                Author notes
                [* ]Correspondence: emmanuel.flores@ 123456cicy.mx ; Tel.: +52-999-942-8330
                Author information
                https://orcid.org/0000-0003-4285-5181
                https://orcid.org/0000-0002-1541-1879
                Article
                materials-13-02534
                10.3390/ma13112534
                7321438
                32503135
                80957674-cd73-493b-b5db-175788fc8d67
                © 2020 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 19 May 2020
                : 30 May 2020
                Categories
                Article

                foamed concrete,henequen fiber,natural fiber,u-shaped wall,shaking table test,dynamic cyclic loading,seismic performance,finite-element simulation

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