Experimental study on the mechanical and thermal properties of basalt fiber and nanoclay reinforced polymer concrete

Niaki, Mostafa Hassani; Fereidoon, Abdolhossein; Ahangari, Morteza Ghorbanzadeh

doi:10.1016/j.compstruct.2018.02.063

Cited by 134 publications

(31 citation statements)

References 26 publications

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“…Therefore, many studies focus on the modification of concrete mixtures using a byproduct [39,40] or waste material [41] as its current main building material. A wide range of recycled fibers available on the market, e.g., steel, glass and polypropylene, can be used not only as distributed reinforcement [42,43] but also to change the thermal properties of concrete [44][45][46][47][48]. Most studies focus on achieving higher mechanical properties of hardened concrete, such as compressive strength, flexural strength and split tensile strength, as they are crucial for construction sustainability [49].…”

Section: Introductionmentioning

confidence: 99%

Influence of Polypropylene, Glass and Steel Fiber on the Thermal Properties of Concrete

et al. 2021

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The variety of approaches to tackle climate change reflects the size of this global problem. No technology will act as a panacea to cure the greenhouse gas emissions problem, but new building materials with byproducts or even wastes have the potential to play a major role in reducing the environmental impacts of the building sector. In this study, three potential solutions of concrete with dispersed reinforcement in the form of recycled fibers (polypropylene, glass and steel) were examined. The aim is to present a detailed analysis of the thermal properties of new building materials in an experimental approach. Concrete mixtures were prepared according to a new, laboratory-calculated recipe containing granite aggregate, a polycarboxylate-based deflocculant, Portland cement (52.5 MPa) and fibers. This experimental work involved three different contents of each fiber (0.5%, 0.75% and 1.0 wt.%), and all tests were carried after the complete curing cycle of concrete (28 days).

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Section: Introductionmentioning

confidence: 99%

Influence of Polypropylene, Glass and Steel Fiber on the Thermal Properties of Concrete

et al. 2021

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“…Neste trabalho verificou-se o efeito das fibras de basalto na resistência à compressão, flexão, limite de ruptura e tração, bem como o comportamento em diferentes temperaturas (até 250°C). As nanopartículas aumentaram a estabilidade térmica e todas as propriedades mecânicas do compósito, com exceção da resistência a tração [8].…”

Section: Resultsunclassified

“…O Concreto Polimérico (CP) é um material compósito feito de agregados minerais como areia e cascalho em combinação com um polímero que detém a função de substituir total ou parcialmente o aglutinante tradicional de Cimento Portland na mistura [2][3][4][5][6]. O CP pode ter suas características mecânicas aprimoradas com a adição de nanofillers ou utilização de fibras (sintéticas ou naturais), nesse caso, recebe o nome de Concreto Polimérico Fibro-Reforçado (CPFR) [3,6,[7][8][9][10][11][12]. A alta permeabilidade, baixa resistência à abrasão, baixa resistência ao ciclo gelo degelo, longo tempo de cura e fenômenos como carbonatação e ataque por íons de cloro, são algumas das desvantagens apresentadas pelo concreto tradicional [13][14][15].…”

Section: Introductionunclassified

Desenvolvimento De Concretos Poliméricos Reforçados Com Fibras Sintéticas: Uma Revisão Sistemática.

Araujo¹,

Azevedo²,

Barbosa³

2019

Blucher Engineering Proceedings

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Resumo: Este artigo apresenta uma revisão sistemática sobre o uso de concreto polimérico reforçado com fibras sintéticas na construção civil, com intuito de aprimorar o conhecimento sobre o tema e fomentar futuras pesquisas. Definidas as perguntas norteadoras do trabalho, deu-se início ao processo de busca por meio da criação de filtros, estratégias de coleta e critérios de exclusão pré-estabelecidos. Os resultados apontaram escassez de estudos relacionados com a aplicação de fibras sintéticas em Concretos Poliméricos. As matrizes poliméricas compostas por resinas epóxi e os reforços sintéticos de fibras de vidro foram os materiais mais empregados no desenvolvimento de pesquisas. A Coreia do Sul juntamente com a China e Portugal, foram os países que apresentaram maior número de pesquisas. O emprego no reparo de rodovias e a eficiência no combate de vibrações sísmicas, foram os assuntos mais comumente estudados pelos pesquisadores. O artigo sugere realização de estudos que empreguem resíduos industriais como reforços sintéticos com objetivo de diminuir custos produtivos e viabilidade no emprego do material em maior escala, além de futuros trabalhos envolvendo Prospecções Tecnológicas.

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“…Researches carried out by Reis et al [20][21][22] showed that UV and temperature decrease the fracture toughness and tensile strength of the EPC. The studies of Hassani et al [23] and Oussama et al [24] both showed that the strength of EPC decreases at a temperature of 250 • C. In addition, the degradation effect of thermal cycling on the fracture toughness and tensile strength of EPC were also investigated [25]. When exposed to chemical media such as acid, the strength of EPC decreases more significantly [9,26].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on the Dynamic Mechanical Properties of Epoxy Polymer Concrete under Ultraviolet Aging

Liao

Liu

et al. 2021

Materials

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Epoxy polymer concrete (EPC) is widely applied in engineering for its excellent mechanical properties. The impact loads and severe climatic conditions such as ultraviolet radiation, temperature change and rain erosion are in general for its engineering practice, potentially degrading the performance of EPC. In this paper, a procedure of accelerated aging for EPC, imitating the aging effect of ultraviolet radiation and hygrothermal conditions based on the meteorological statistics of Guangzhou city, was designed. After various periods of accelerated aging, the dynamic behaviors of EPC were studied by using a Split Hopkinson Pressure Bar (SHPB). The verification of the experimental data was performed. The two-stage dynamic compression stress-strain curves were obtained: (a) linear growth stage following by strain hardening stage at impact velocity 12.2 m/s and 18.8 m/s, (b) linear growth stage and then a horizontal stage when impact velocity is 25.0 m/s, (c) linear growth stage following by strain softening stage at impact velocity 29.2 m/s. The experimental results show that the specimens after longer accelerated aging tend to be more easily broken, especially at impact velocity 12.2 m/s and 18.8 m/s, while the strain rate is the main factor affecting the compression strength and stiffness. Ultimately the influence of strain rate and equivalent aging time on dynamic increase factor was revealed by a fitting surface.

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Experimental study on the mechanical and thermal properties of basalt fiber and nanoclay reinforced polymer concrete

Cited by 134 publications

References 26 publications

Influence of Polypropylene, Glass and Steel Fiber on the Thermal Properties of Concrete

Influence of Polypropylene, Glass and Steel Fiber on the Thermal Properties of Concrete

Desenvolvimento De Concretos Poliméricos Reforçados Com Fibras Sintéticas: Uma Revisão Sistemática.

An Experimental Study on the Dynamic Mechanical Properties of Epoxy Polymer Concrete under Ultraviolet Aging

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