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Influence of water stability on bond performance between magnesium phosphate cement mortar and steel fibre

Journal Article


Abstract


  • The fibre pullout test was conducted to investigate the influence of the water stability on the bond behaviour between the Magnesium phosphate cement (MPC) matrix and the steel fibre. The composition of the MPC-matrix and the immersion age of the specimens are experimentally investigated. The average bond strength and the pullout energy are investigated by analysing the experimental results. In addition, the microscopic characteristics of the interface transition zone are investigated using scanning electron microscopy (SEM). The experimental results showed that the bond performance between the MPC-matrix and the steel fibre decreased significantly with the increase of the duration of immersion in water. The average bond strength between the steel fibre and the MPC-matrix reduced by more than 50% when the specimens were immersed in the water for 28 days. The effect of the water on the interface between the steel fibre and the MPC-matrix was found to be more significant compared to the composition of the MPC-matrix. In addition, the MgO-KH2PO4 mole ratio of the MPC significantly influenced the water stability of the interface zone between the steel fibre and MPC-matrix.

UOW Authors


  •   Feng, Hu (external author)
  •   Liu, Guanghui (external author)
  •   Yuan, Jiansong (external author)
  •   Sheikh, M Neaz.
  •   Feng, Lu (external author)
  •   Zhao, Jun (external author)

Publication Date


  • 2019

Citation


  • Feng, H., Liu, G., Yuan, J., Sheikh, M. Neaz., Feng, L. & Zhao, J. (2019). Influence of water stability on bond performance between magnesium phosphate cement mortar and steel fibre. SDHM Structural Durability and Health Monitoring, 13 (1), 105-121.

Scopus Eid


  • 2-s2.0-85064074147

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/2622

Has Global Citation Frequency


Number Of Pages


  • 16

Start Page


  • 105

End Page


  • 121

Volume


  • 13

Issue


  • 1

Place Of Publication


  • United States

Abstract


  • The fibre pullout test was conducted to investigate the influence of the water stability on the bond behaviour between the Magnesium phosphate cement (MPC) matrix and the steel fibre. The composition of the MPC-matrix and the immersion age of the specimens are experimentally investigated. The average bond strength and the pullout energy are investigated by analysing the experimental results. In addition, the microscopic characteristics of the interface transition zone are investigated using scanning electron microscopy (SEM). The experimental results showed that the bond performance between the MPC-matrix and the steel fibre decreased significantly with the increase of the duration of immersion in water. The average bond strength between the steel fibre and the MPC-matrix reduced by more than 50% when the specimens were immersed in the water for 28 days. The effect of the water on the interface between the steel fibre and the MPC-matrix was found to be more significant compared to the composition of the MPC-matrix. In addition, the MgO-KH2PO4 mole ratio of the MPC significantly influenced the water stability of the interface zone between the steel fibre and MPC-matrix.

UOW Authors


  •   Feng, Hu (external author)
  •   Liu, Guanghui (external author)
  •   Yuan, Jiansong (external author)
  •   Sheikh, M Neaz.
  •   Feng, Lu (external author)
  •   Zhao, Jun (external author)

Publication Date


  • 2019

Citation


  • Feng, H., Liu, G., Yuan, J., Sheikh, M. Neaz., Feng, L. & Zhao, J. (2019). Influence of water stability on bond performance between magnesium phosphate cement mortar and steel fibre. SDHM Structural Durability and Health Monitoring, 13 (1), 105-121.

Scopus Eid


  • 2-s2.0-85064074147

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/2622

Has Global Citation Frequency


Number Of Pages


  • 16

Start Page


  • 105

End Page


  • 121

Volume


  • 13

Issue


  • 1

Place Of Publication


  • United States