Development of sandwich panels combining Sisal Fiber-Cement Composites and Fiber-Reinforced Lightweight Concrete

Frazão, Cristina Maria Vieira; Barros, Joaquim A. O.; Filho, Romildo Dias Toledo; Ferreira, Saulo Rocha; Gonçalves, Delfina

doi:10.1016/j.cemconcomp.2017.11.008

Cited by 59 publications

(27 citation statements)

References 14 publications

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“…In the design of a sandwich composite, knowledge of the value of its thermal resistance and thermal capacity is important. The heat transfer coefficient tests confirmed the possibility of prediction of thermal resistance (the coefficient of determination was 0.915) of the composite based on equation (1). The dependence of the thermal conductivity coefficient of the aerogel mat as a function of its thickness is shown in Fig.…”

Section: Resultssupporting

confidence: 63%

“…Attention should also be paid to additional functionalities, for example thermal and sound insulation. The use of recycled materials is an important aspect [1][2][3][4][5][6]. The core of the sandwich panel can be materials such as balsa [6,7], light concrete reinforced with PP fibres [1], polyurethane foam [3], aluminium foam [2,8,9].…”

Section: Introductionmentioning

confidence: 99%

“…The use of recycled materials is an important aspect [1][2][3][4][5][6]. The core of the sandwich panel can be materials such as balsa [6,7], light concrete reinforced with PP fibres [1], polyurethane foam [3], aluminium foam [2,8,9]. Interesting solutions for sandwich structures were also obtained using epoxy honey comb [4], expanded cork [10], epoxy resin filled with alumine tri-hydrate (ATH) particles [11], cross-linked polyvinyl chloride foam and poly(ethylene) terephthalate (PET) foam [6], and even bottle caps [5] Attempts have also been made to obtain sandwich structures containing PCM [12,13] or aerogel [14,15], but only combining the latter two materials allows us to obtain a multifunctional material, at the same time having the ability to stabilize the temperature of the insulated space and a thermal resistance much higher than the commonly available insulating materials.…”

Section: Introductionmentioning

confidence: 99%

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Innovative composite on the basis of an aerogel mat with an epoxy resin modified with PET waste and PCM

2018

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The article presents a patent proposition of a composite – sandwich panel made of aerogel mat and a composition of encapsulated phase-change material PCM and epoxy resin modified by glycolysis based on poly(ethylene terephthalate) waste. A multifunctional thermal insulation material with a large heat capacity was obtained. This ability makes it possible to limit the temperature fluctuation in the space encased with the composite. In addition, thanks to the use of aerogel mat, which is characterized by much higher thermal insulation than commonly available materials, it is possible to achieve the assumed thermal resistance using more than two times lower thickness of insulation. The combination of aerogel and resin-PCM makes it possible to give the material virtually any shape. After the hardening process is completed, it has incomparably greater tensile, bending and compression strengths than Styrofoam and mineral wool. These features predispose it for use in situations where high thermal insulation is required while maintaining a low thickness of insulation material and a large thermal capacity of the housing material is indicated, e.g. thin divisions used in passive buildings, window joinery elements, engine compartments and cabin components in vehicles, household appliances etc.

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Section: Resultssupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Innovative composite on the basis of an aerogel mat with an epoxy resin modified with PET waste and PCM

2018

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“…Cristina FrazaoPresentedthe Paper on Development Of Sandwich Panels Combining Sisal Fiber-Cement Composites And Fiber-Reinforced Lightweight Concrete. [4] In This exploration proposes the advancement of an imaginative auxiliary boards dependent on the utilization of meager external layers of Sisal Fiber-Cement Composites (SiFCC) together with a center layer of Polypropylene Fiber-Reinforced Lightweight Concrete (PFRLC). The impact of sisal filaments was concentrated in two distinctive ways, short sisal strands (50 mm) arbitrarily conveyed in the lattice, and long unidirectional adjusted sisal strands (700 mm) connected by a cast hand layup method.…”

Section: Aslana Presented the Paper On Tribological And Mechanicalmentioning

confidence: 99%

The Comparative Study and Optimization of Foot Rest by using Composite Sisal Fibre as Replacement for Aluminium, along with Weight and Strength Optimization

Kandhare¹

2019

IJRASET

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Use of natural fibres is growing in day to day life. Sisal fibre is one of those fibres. Sisal fibre is used to increase the strength of any component. The actual two-wheeler foot rest study is carried out. The sisal fibre foot rest is fabricated in order to replace the actual aluminium foot rest and then the study is carried out between the original and sisal fibre model of foot rest. The main aim of project is to optimize footrest of two-wheeler using natural fibre composite. The foot rest is composed of sisal fibre. The 3D model is drawn with the help of CATIA V5 software. The analysis is done by using ANSYS 19.2 software. Three different orientations of sisal fibre are considered for analysis. The three-point bending experimental testing is done with the help of Universal Testing Machine. The simulation and experimental results are compared. From experimentation peak load for aluminium is 640N and for sisal fibre is 1820N this shows that strength of the footrest is increased. The weight of the aluminium and sisal fibre is 305.8 g and 136.5 g respectively. From this it can be seen that 55% weight reduction is done. Amongst three orientations of sisal fibre sample 1 i.e., sisal fire footrest with orientation 0°-0°-0°-0°-0°-0°-0°-0° gives lesser deformation compared to other two samples which has orientation as 0°-45°-0°-45°-0°-45°-0°-45° and 0°-90°-0°-90°-0°-90°-0°-90°. So, it can be concluded that sample1 of sisal fibre footrest can be used as a replacement of aluminium.

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“…Por conseguinte, esse material detém potencial de aplicação em construções de fachada com paredes menos espessas e alta capacidade de carga, tal como coberturas, por exemplo (SHAMS; HORSTMANN; HEGGER, 2014). Ao utilizar painéis sanduíche com lâminas finas, rígidas e dúcteis, associadas a um núcleo com propriedades térmicas, torna-se possível obter sistemas construtivos eficazes sob o ponto de vista estrutural, acústico e térmico (FRAZÃO et al, 2018).…”

Section: Motivaçãounclassified

Avaliação Do Comportamento Mecânico De Painéis Sanduíche Com Compósitos Laminados Reforçados Com Fibra De Curauá E Núcleo De Concreto Celular Autoclavado

SALGADO¹

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This present work aims to analyze the mechanical behavior of sandwich panels consisting of two outer layers of natural fiber-reinforced cementitious composites separated by a core layer of autoclaved aerated concrete (AAC). The molding of each composite layer was made directly on the surface of an AAC block, by manually arranging three layers of long unidirectional aligned curauá fibers in the mortar. In order to increase the composite durability, a matrix with a low content of calcium hydroxide was developed, where the Portland cement was partially replaced by pozzolanic materials. Characterization tests of the matrix, the curauá filaments and the AAC blocks were performed to obtain their independent properties. The composites were submitted to fabric pull-out tests, direct tensile tests and four-point bending to evaluate different aspects of their cracking mechanisms, strength and deformation capacity. Loading zones were indicated in each case to demonstrate the standard composite behavior. The sandwich panels, on the other hand, were analyzed in terms of interface, through pull-off tests and SEM images of the materials transition surface, and mechanical performance, by means of cyclic and monotonic four-point bending tests. The latter registered the rigidity, load capacity and deflection of the sandwich panels, as well as the main properties of their elements: for the core, shear strength and shear modulus, and for the skin layers, compressive strength and tensile strength. Cyclic tests evaluated the resistance of the material to loading-unloading cycles, while pull-off tests were used to verify the interface between the laminated composites and the AAC core. The results indicated a satisfactory performance of the sandwich panels, since the composite layers provided a strain/deflection hardening behavior to the material, PUC-Rio-Certificação Digital Nº 1712762/CA increasing its flexural strength and toughness. The adhesion between the layers and the core proved to be effective, so that the comprised materials displayed adequate interaction between each other, as well as complementary properties. Among the objectives of this work is the development of a sustainable, lightweight, resistant and tough material, in a way that it represents a promising and low-cost alternative to Engineering applications.

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Development of sandwich panels combining Sisal Fiber-Cement Composites and Fiber-Reinforced Lightweight Concrete

Cited by 59 publications

References 14 publications

Innovative composite on the basis of an aerogel mat with an epoxy resin modified with PET waste and PCM

Innovative composite on the basis of an aerogel mat with an epoxy resin modified with PET waste and PCM

The Comparative Study and Optimization of Foot Rest by using Composite Sisal Fibre as Replacement for Aluminium, along with Weight and Strength Optimization

Avaliação Do Comportamento Mecânico De Painéis Sanduíche Com Compósitos Laminados Reforçados Com Fibra De Curauá E Núcleo De Concreto Celular Autoclavado

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