High performance inorganic fullerene cage WS2 enhanced cement

Binling Chen, Hazel Tsui, Barrie Dams, Hussameldin Taha, Yanqiu Zhu, Richard Ball

Research output: Contribution to journalArticlepeer-review

26 Downloads (Pure)

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.
Original languageEnglish
Article number133305
Number of pages13
JournalConstruction and Building Materials
Volume404
Early online date13 Sept 2023
DOIs
Publication statusPublished - 10 Nov 2023

Bibliographical note

Funding Information:
The authors thank the Engineering and Physical Sciences Research Council (EPSRC) for support through grant (EP/N018494/1). The authors also thank to the following: Jiacheng Zhang, William Bazeley, Martin Naidu, Neil Price, Matthew Case, Philip Fletcher, Florence Richardson, Kostas Myronidis, Fulvio Pinto (University of Bath, UK), Hong Chang and Yu Chen (University of Exeter, UK), Prof. Geoff Allen (University of Bristol, UK), and Mark Isaacs (HarwellXPS). The X-ray photoelectron (XPS) data collection was performed at HarwellXPS – EPSRC National Facility for XPS, operated by Cardiff University and UCL, under Contract No. PR16195.

Funding Information:
The authors thank the Engineering and Physical Sciences Research Council (EPSRC) for support through grant (EP/N018494/1). The authors also thank to the following: Jiacheng Zhang, William Bazeley, Martin Naidu, Neil Price, Matthew Case, Philip Fletcher, Florence Richardson, Kostas Myronidis, Fulvio Pinto (University of Bath, UK), Hong Chang and Yu Chen (University of Exeter, UK), Prof. Geoff Allen (University of Bristol, UK), and Mark Isaacs (HarwellXPS). The X-ray photoelectron (XPS) data collection was performed at HarwellXPS – EPSRC National Facility for XPS, operated by Cardiff University and UCL, under Contract No. PR16195.

Publisher Copyright:
© 2023 The Author(s)

Keywords

  • Additive manufacturing
  • Cementitious materials
  • Construction materials
  • High performance
  • Inorganic fullerene tungsten disulfide
  • Nanocomposite

ASJC Scopus subject areas

  • General Materials Science
  • Building and Construction
  • Civil and Structural Engineering

Fingerprint

Dive into the research topics of 'High performance inorganic fullerene cage WS2 enhanced cement'. Together they form a unique fingerprint.

Cite this