Application of bacterial nanocellulose fibers as reinforcement in cement composites

Akhlaghi, Mohammad Amir; Bagherpour, Raheb

doi:10.1016/j.conbuildmat.2020.118061

Cited by 65 publications

(22 citation statements)

References 34 publications

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“…BC is an organic compound with the chemical formula of (C 6 H 10 O 5 ) n , which is identical to the plant cellulose. However, BC has higher crystallinity, polymerization degree, purity, water absorption capacity, and tensile strength [ 20 ].…”

Section: Nanocellulosementioning

confidence: 99%

“…Bacterial celluloses (BCs) could be used in two different states, including gel and powder, and either form could reduce water absorption of cement mortar, with BC powder reducing more [ 20 ]. In general, the water absorption could be increased with the increase of BC dosage, which might be due to the aggregation of BCs.…”

Section: Application Of Nanocellulose In Cementitious Materialsmentioning

confidence: 99%

“…For the mechanical properties of cementitious materials with BCs, the existing research is very limited, and only two papers can be found to date, as summarized in Table 3 . BCs were used in two forms (powder and gel), and both forms were found to improve flexural strength (modulus of rupture), compressive strength, modulus of elasticity, and fracture toughness [ 20 , 45 ]. However, BC powders and BC gels have different effectiveness.…”

Section: Application Of Nanocellulose In Cementitious Materialsmentioning

confidence: 99%

“…Whereas BC is obtained from bacteria (such as Gluconacetobacter xylinus ). Although these nanocelluloses are different from their origins and isolation methods, they have some similarities, such as low density, large aspect ratio, high strength, and high surface area, etc., [ 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. Also, nanocelluloses are hydrophilic, with large amounts of hydroxyl groups on their surface, and can absorb some water while mixing with cementitious materials.…”

Section: Introductionmentioning

confidence: 99%

“…Nanocellulose has been reported to change the properties of cementitious materials significantly, and it has the potential to be used for different purposes [ 16 , 17 ]. First, nanocellulose can be used to improve the mechanical properties of cementitious materials if a proper dosage is used [ 15 , 20 , 26 , 27 ]. However, it should be noted that if a high dosage of nanocellulose is used, the aggregation of nanocellulose may occur, which can impair the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A Review on the Application of Nanocellulose in Cementitious Materials

et al. 2020

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The development of the concrete industry is always accompanied by some environmental issues such as global warming and energy consumption. Under this circumstance, the application of nanocellulose in cementitious materials is attracting more and more attention in recent years not only because of its renewability and sustainability but also because of its unique properties. To trace the research progress and provide some guidance for future research, the application of nanocellulose to cementitious materials is reviewed. Specifically, the effects of cellulose nanocrystal (CNC), cellulose nanofibril (CNF), bacterial cellulose (BC), and cellulose filament (CF) on the physical and fresh properties, hydration, mechanical properties, microstructure, rheology, shrinkage, and durability of cementitious materials are summarized. It can be seen that the type, dosage, and dispersion of nanocellulose, and even the cementitious matrix type can lead to different results. Moreover, in this review, some unexplored topics are highlighted and remain to be further studied. Lastly, the major challenge of nanocellulose dispersion, related to the effectiveness of nanocellulose in cementitious materials, is examined in detail.

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Section: Nanocellulosementioning

confidence: 99%

Section: Application Of Nanocellulose In Cementitious Materialsmentioning

confidence: 99%

Section: Application Of Nanocellulose In Cementitious Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Review on the Application of Nanocellulose in Cementitious Materials

et al. 2020

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Applications of Biopolymers in Construction and Civil Engineering

Philip,

Reshmy

2024

Applications of Biopolymers in Science, Biotechnology, and Engineering

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Strategies for Making High‐Performance Artificial Spider Silk Fibers

Schmuck,

Greco,

Pessatti

et al. 2023

Adv Funct Materials

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Artificial spider silk is an attractive material for many technical applications since it is a biobased fiber that can be produced under ambient conditions but still outcompetes synthetic fibers (e.g., Kevlar) in terms of toughness. Industrial use of this material requires bulk‐scale production of recombinant spider silk proteins in heterologous host and replication of the pristine fiber's mechanical properties. High molecular weight spider silk proteins can be spun into fibers with impressive mechanical properties, but the production levels are too low to allow commercialization of the material. Small spider silk proteins, on the other hand, can be produced at yields that are compatible with industrial use, but the mechanical properties of such fibers need to be improved. Here, the literature on wet‐spinning of artificial spider silk fibers is summarized and analyzed with a focus on mechanical performance. Furthermore, several strategies for how to improve the properties of such fibers, including optimized protein composition, smarter spinning setups, innovative protein engineering, chemical and physical crosslinking as well as the incorporation of nanomaterials in composite fibers, are outlined and discussed.

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Application of bacterial nanocellulose fibers as reinforcement in cement composites

Cited by 65 publications

References 34 publications

A Review on the Application of Nanocellulose in Cementitious Materials

A Review on the Application of Nanocellulose in Cementitious Materials

Applications of Biopolymers in Construction and Civil Engineering

Strategies for Making High‐Performance Artificial Spider Silk Fibers

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