A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of High Strength and High Ductility Cementitious Composites Incorporating CNF-Coated Polyethylene Fibers
Abstract In this study, high strength and high ductility cementitious composites were developed by incorporating carbon nanofibers (CNFs) coated polyethylene (PE) fibers. The CNFs were coated on the PE fiber surface through hydrophobic interaction to strengthen the interface transition zone (ITZ) between PE fibers and cement-based matrix. The resulting composite has a compressive strength over 150 MPa and a tensile strain capacity exceeding 2%. Results showed that CNF coating on PE fiber reduces cracking spacing and enhances the tensile strength and tensile strain capacity of composites by 15% and 20% respectively. It is plausible that CNF on PE fiber may fill nano-pores and bridge nano-cracks in the fiber/matrix ITZ, resulting in denser microstructure and higher crack resistance against fiber pullout. The increased interface frictional bond strength leads to higher tensile strength and strain capacity.
Development of High Strength and High Ductility Cementitious Composites Incorporating CNF-Coated Polyethylene Fibers
Abstract In this study, high strength and high ductility cementitious composites were developed by incorporating carbon nanofibers (CNFs) coated polyethylene (PE) fibers. The CNFs were coated on the PE fiber surface through hydrophobic interaction to strengthen the interface transition zone (ITZ) between PE fibers and cement-based matrix. The resulting composite has a compressive strength over 150 MPa and a tensile strain capacity exceeding 2%. Results showed that CNF coating on PE fiber reduces cracking spacing and enhances the tensile strength and tensile strain capacity of composites by 15% and 20% respectively. It is plausible that CNF on PE fiber may fill nano-pores and bridge nano-cracks in the fiber/matrix ITZ, resulting in denser microstructure and higher crack resistance against fiber pullout. The increased interface frictional bond strength leads to higher tensile strength and strain capacity.
Development of High Strength and High Ductility Cementitious Composites Incorporating CNF-Coated Polyethylene Fibers
He, Shan (author) / Qiu, Jishen (author) / Li, Junxia (author) / Yang, En-Hua (author)
2017-09-05
9 pages
Article/Chapter (Book)
Electronic Resource
English
Ductility of high performance cementitious composites
| British Library Conference Proceedings | 2004
Cementitious composites with high tensile strength and ductility through hybrid fibres
| British Library Conference Proceedings | 2004