A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High performance inorganic fullerene cage WS2 enhanced cement
https://orcid.org/0000-0003-0719-7398
https://orcid.org/0000-0001-7081-5457
https://orcid.org/0000-0002-7413-3944
Highlights • Novel inorganic fullerene tungsten disulfide (IF-WS2) CEM1 nanocomposite. • Formation of CaWO4 interface layer between IF-WS2 and hydration products. • 1 wt% addition of IF-WS2 provides highest energy adsorption capability. • 86% improvement in flexural strength of IF-WS2 enhanced 3D printed specimens.
Abstract An original cement based material enhanced with inorganic fullerene tungsten disulfide (IF-WS2) nanoparticles has been engineered with superb shock absorbing properties. Physical properties were attributed to the IF-WS2 nano-hollow multiple layered onion-like structure. The effect of IF-WS2 concentration at 0.1 wt%, 1 wt% and 5 wt% on the hydration kinetics of ordinary Portland cement (CEM1), electrical impedance, thermal stability, rheology and strength development was thoroughly evaluated. X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and X-ray diffraction (XRD) studies confirmed the formation of the new phase, calcium tungstate (CaWO4), at the nano-particle/cement matrix interface during early hydration. 1 wt% IF-WS2 additions enhanced the impact energy of CEM1 by 89% compared to the control. An IF-WS2 cementitious mixture was developed for 3D printing based on the 1% WS2-CEM composition. The mix exhibited excellent workability and buildability enabling the creation of a layer-by-layer printed component. Intimate interlayer adhesion minimized the presence of voids leading to a high flexural strength of 6.7 MPa, which equated to an over 86% improvement compared to plain CEM1 printed components. This study showcases IF-WS2 nanoparticles as a new ground-breaking additive enabling the production of high-performance cementitious construction materials, for use under extreme environments demanding high strength and impact resistance.
High performance inorganic fullerene cage WS2 enhanced cement
https://orcid.org/0000-0003-0719-7398
https://orcid.org/0000-0001-7081-5457
https://orcid.org/0000-0002-7413-3944
Highlights • Novel inorganic fullerene tungsten disulfide (IF-WS2) CEM1 nanocomposite. • Formation of CaWO4 interface layer between IF-WS2 and hydration products. • 1 wt% addition of IF-WS2 provides highest energy adsorption capability. • 86% improvement in flexural strength of IF-WS2 enhanced 3D printed specimens.
Abstract An original cement based material enhanced with inorganic fullerene tungsten disulfide (IF-WS2) nanoparticles has been engineered with superb shock absorbing properties. Physical properties were attributed to the IF-WS2 nano-hollow multiple layered onion-like structure. The effect of IF-WS2 concentration at 0.1 wt%, 1 wt% and 5 wt% on the hydration kinetics of ordinary Portland cement (CEM1), electrical impedance, thermal stability, rheology and strength development was thoroughly evaluated. X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and X-ray diffraction (XRD) studies confirmed the formation of the new phase, calcium tungstate (CaWO4), at the nano-particle/cement matrix interface during early hydration. 1 wt% IF-WS2 additions enhanced the impact energy of CEM1 by 89% compared to the control. An IF-WS2 cementitious mixture was developed for 3D printing based on the 1% WS2-CEM composition. The mix exhibited excellent workability and buildability enabling the creation of a layer-by-layer printed component. Intimate interlayer adhesion minimized the presence of voids leading to a high flexural strength of 6.7 MPa, which equated to an over 86% improvement compared to plain CEM1 printed components. This study showcases IF-WS2 nanoparticles as a new ground-breaking additive enabling the production of high-performance cementitious construction materials, for use under extreme environments demanding high strength and impact resistance.
High performance inorganic fullerene cage WS2 enhanced cement
https://orcid.org/0000-0003-0719-7398
https://orcid.org/0000-0001-7081-5457
https://orcid.org/0000-0002-7413-3944
Highlights • Novel inorganic fullerene tungsten disulfide (IF-WS2) CEM1 nanocomposite. • Formation of CaWO4 interface layer between IF-WS2 and hydration products. • 1 wt% addition of IF-WS2 provides highest energy adsorption capability. • 86% improvement in flexural strength of IF-WS2 enhanced 3D printed specimens.
Abstract An original cement based material enhanced with inorganic fullerene tungsten disulfide (IF-WS2) nanoparticles has been engineered with superb shock absorbing properties. Physical properties were attributed to the IF-WS2 nano-hollow multiple layered onion-like structure. The effect of IF-WS2 concentration at 0.1 wt%, 1 wt% and 5 wt% on the hydration kinetics of ordinary Portland cement (CEM1), electrical impedance, thermal stability, rheology and strength development was thoroughly evaluated. X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and X-ray diffraction (XRD) studies confirmed the formation of the new phase, calcium tungstate (CaWO4), at the nano-particle/cement matrix interface during early hydration. 1 wt% IF-WS2 additions enhanced the impact energy of CEM1 by 89% compared to the control. An IF-WS2 cementitious mixture was developed for 3D printing based on the 1% WS2-CEM composition. The mix exhibited excellent workability and buildability enabling the creation of a layer-by-layer printed component. Intimate interlayer adhesion minimized the presence of voids leading to a high flexural strength of 6.7 MPa, which equated to an over 86% improvement compared to plain CEM1 printed components. This study showcases IF-WS2 nanoparticles as a new ground-breaking additive enabling the production of high-performance cementitious construction materials, for use under extreme environments demanding high strength and impact resistance.
High performance inorganic fullerene cage WS2 enhanced cement
Chen, Binling (author) / Tsui, Hazel (author) / Dams, Barrie (author) / Taha, Hussameldin M. (author) / Zhu, Yanqiu (author) / Ball, Richard J. (author)
2023-09-08
Article (Journal)
Electronic Resource
English
The high conductivity of defect fullerene C40 cage
| British Library Online Contents | 2009
Closed-cage (fullerene-like) structures of NiBr2
| British Library Online Contents | 2006
Inorganic nanotubes and fullerene-like nanoparticles
| British Library Online Contents | 2006