Geopolymer composites reinforced with natural Fibers: A review of recent advances in processing and properties

Moujoud, Zineb; Sair, Said; Ait Ousaleh, Hanane; Ayouch, Ikrame; El Bouari, Abdeslam; Tanane, Omar

doi:10.1016/j.conbuildmat.2023.131666

Cited by 45 publications

(10 citation statements)

References 170 publications

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“…In contrast, Figure 10 f shows a floating fiber, probably due to the pull-out or debonding phenomena. Increasing the content of the natural fibers to 1% led to better distribution and better mechanical properties [ 4 ].…”

Section: Resultsmentioning

confidence: 99%

“…Natural fibers, such as bamboo, flax, hemp, and jute, are eco-friendly materials that can be used as reinforcements within a geopolymer matrix. These kinds of reinforcements provide benefits, such as improved tensile and flexural strength, reduced density, and improved thermal and acoustic insulation [ 4 , 5 ]. Despite their many advantages, natural fibers also present disadvantages, such as a heterogeneous structure and high water absorption [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

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The Different Properties of Geopolymer Composites Reinforced with Flax Fibers and Carbon Fibers

Brugaletta,

Becher,

Rostagno

et al. 2024

Materials

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The main motivation for this research was to improve the properties of geopolymers by reinforcement using synthetic and natural fibers, and to gain new knowledge regarding how the nature and/or the quantity of reinforcement fibers influences the properties of the final geopolymers. The main objective was to investigate the effects of different types of reinforcement fibers on the properties of the geopolymers. These reinforcement fibers were mainly environmentally friendly materials that can be used as alternatives to ordinary Portland cement. The authors used fly ash and river sand as the raw materials for the matrix, and added carbon fibers (CF), flax fibers (FF), or a hybrid of both (CFM) as reinforcements. The samples were prepared by mixing, casting, and curing, and then subjected to various tests. The main research methods used were compressive strength (CS), flexural strength (FS), water absorption (WA), abrasion resistance (Böhme’s disk method), microstructure analysis (SEM), chemical composition (XRF), and crystal structure analysis (XRD). The results showed that the addition of fibers partially improved the mechanical properties of the geopolymers, as well as reducing microcracks. The CF-reinforced geopolymers exhibited the highest compressive strength, while the FF-reinforced geopolymers showed the lowest water absorption. The authors, based on previous research, also discussed the factors that influence fiber-matrix adhesion, and the optimal fiber content for geopolymers.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Different Properties of Geopolymer Composites Reinforced with Flax Fibers and Carbon Fibers

Brugaletta,

Becher,

Rostagno

et al. 2024

Materials

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show abstract

“…The geopolymer matrix can also be reinforced with natural fibers like bamboo, flax, hemp, and jute, which has additional advantages like better tensile and flexural strength, lower density, and improved thermal and acoustic insulation qualities. In order to better understand the raw materials and manufacturing processes used to create compact and porous geopolymer materials, the review paper by Moujoud et al [68] examined them. de Lima et al [69] examined the potential of using Amazon natural fibers to reinforce cementitious composites.…”

Section: Plant Fiber-mineral Compositesmentioning

confidence: 99%

Natural Fibers Composites: Origin, Importance, Consumption Pattern, and Challenges

Thapliyal,

Verma,

Sen

et al. 2023

J. Compos. Sci.

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This comprehensive review explores the multifaceted world of natural fiber applications within the domain of composite materials. Natural fibers are meticulously examined in detail, considering their diverse origins, which encompass plant-derived fibers (cellulose-based), animal-derived fibers (protein-based), and even mineral-derived variations. This review conducts a profound analysis, not only scrutinizing their chemical compositions, intricate structures, and inherent physical properties but also highlighting their wide-ranging applications across various industries. The investigation extends to composites utilizing mineral or polymer matrices, delving into their synergistic interplay and the resulting material properties. Furthermore, this review does not limit itself to the intrinsic attributes of natural fibers but ventures into the realm of innovative enhancements. The exploration encompasses the augmentation of composites through the integration of natural fibers, including the incorporation of nano-fillers, offering a compelling avenue for further research and technological development. In conclusion, this review synthesizes a comprehensive understanding of the pivotal role of natural fibers in the realm of composite materials. It brings together insights from their diverse origins, intrinsic properties, and practical applications across sectors. As the final curtain is drawn, the discourse transcends the present to outline the trajectories of future work in the dynamic arena of natural fiber composites, shedding light on emerging trends that promise to shape the course of scientific and industrial advancements.

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“…To overcome these drawbacks and increase their toughness and flexural strength, they can be modified by adding fibers like steel, polyvinyl alcohol (PVA), polyethylene (PE), polypropylene (PP), glass or basalt [14][15][16][17][18][19]. Recently, attention has been focused on natural [20][21][22][23][24][25][26][27][28][29], virgin [30] or recycled [31] carbon fibers. Natural fibers are renewable, low-cost and low-energy demanding materials with low density and interesting mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Geopolymeric Composites Containing Industrial Waste Reinforced with Arundo donax Fibers

Manzi,

Molari,

Bignozzi

et al. 2024

Buildings

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Traditional Portland cement-based composites have a great environmental impact. Alkali-activated binders can offer an alternative, particularly if they can be obtained even partially from waste. Two residuals derived from the finishing steps of the traditional ceramic industry have been used as possible polymerizable sources mixed with metakaolin. Moreover, to contrast the low dimensional stability of alkali-activated materials and their mechanical brittleness, natural fibers derived from the Arundo donax plant have been added to the mortars. The use of renewable natural fibers instead of synthetic ones can contribute a further environmental advantage. The fresh (consistency) and cured (mechanical) properties of composite materials prepared with residuals and metakaolin were analyzed here. For comparison’s sake, a reference set of composite materials not loaded with fibers but with an identical binder/sand and liquid/binder ratio was cast. A room-temperature curing condition was selected that, although inadequate to promote the short-time reactivity of the wastes, has a minimal energy requirement and allows on-site applications. A small-scale decrease in the properties in the compression mode tests was observed in the waste-modified mortars, while the Arundo addition improved their flexural strength and dimensional stability.

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Geopolymer composites reinforced with natural Fibers: A review of recent advances in processing and properties

Cited by 45 publications

References 170 publications

The Different Properties of Geopolymer Composites Reinforced with Flax Fibers and Carbon Fibers

The Different Properties of Geopolymer Composites Reinforced with Flax Fibers and Carbon Fibers

Natural Fibers Composites: Origin, Importance, Consumption Pattern, and Challenges

Geopolymeric Composites Containing Industrial Waste Reinforced with Arundo donax Fibers

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