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A Review on Properties of Carbon Nanofibre Infused Ultra-High-Performance Fibre Reinforced Concrete
Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC) is a special purpose material characterized by outstanding structural performance. On the other hand, Carbon Nano Fibres (CNF) are nanomaterials with high tensile strength, high conductivity, and good cement modification effect. CNF infused UHPFRC is marketed as a new generation of UHPFRC that is strong and durable. However, it has been subjected to very few investigations. Nevertheless, these studies demonstrate the abovementioned hypothesis. A review of these investigations is presented herein, followed by a discussion. It is inferred that the hybrid reinforcement, which includes the inherent UHPFRC micro steel fibres along with CNF, enhances the material’s mechanical and durability properties further. CNF densifies the UHPFRC matrix more, preventing the ingress of harmful materials and extending the service life of the structure. Strength-wise, it increases the material’s tensile strength throughout delaying the cracking onset and retaining its ductility. Correspondingly, it increases the material’s tensile hardening ratio, energy dissipation, and energy absorption capacity. However, this is conditioned to incorporating the adequate CNF amount. Providing CNF in excess of the matrix’s capacity will force the nanomaterials to agglomerate in some regions, leaving little or no CNF for other regions. Similarly, ensuring the nanomaterial’s uniform dispersion in the cementitious matrix is a key to their efficient enhancement.
A Review on Properties of Carbon Nanofibre Infused Ultra-High-Performance Fibre Reinforced Concrete
Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC) is a special purpose material characterized by outstanding structural performance. On the other hand, Carbon Nano Fibres (CNF) are nanomaterials with high tensile strength, high conductivity, and good cement modification effect. CNF infused UHPFRC is marketed as a new generation of UHPFRC that is strong and durable. However, it has been subjected to very few investigations. Nevertheless, these studies demonstrate the abovementioned hypothesis. A review of these investigations is presented herein, followed by a discussion. It is inferred that the hybrid reinforcement, which includes the inherent UHPFRC micro steel fibres along with CNF, enhances the material’s mechanical and durability properties further. CNF densifies the UHPFRC matrix more, preventing the ingress of harmful materials and extending the service life of the structure. Strength-wise, it increases the material’s tensile strength throughout delaying the cracking onset and retaining its ductility. Correspondingly, it increases the material’s tensile hardening ratio, energy dissipation, and energy absorption capacity. However, this is conditioned to incorporating the adequate CNF amount. Providing CNF in excess of the matrix’s capacity will force the nanomaterials to agglomerate in some regions, leaving little or no CNF for other regions. Similarly, ensuring the nanomaterial’s uniform dispersion in the cementitious matrix is a key to their efficient enhancement.
A Review on Properties of Carbon Nanofibre Infused Ultra-High-Performance Fibre Reinforced Concrete
Lecture Notes in Civil Engineering
Benmokrane, Brahim (editor) / Mohamed, Khaled (editor) / Farghaly, Ahmed (editor) / Mohamed, Hamdy (editor) / Ibrahim, Marwa (author) / El-Hacha, Raafat (author)
8th International Conference on Advanced Composite Materials in Bridges and Structures ; Chapter: 14 ; 121-128
2022-09-14
8 pages
Article/Chapter (Book)
Electronic Resource
English
Properties of nanofibre reinforced cement composites
| Online Contents | 2014
Properties of nanofibre reinforced cement composites
| British Library Online Contents | 2014