Rheology of Semi-Solid Fresh Cement-Pastes and Mortars in Orifice-Extrusion (2013-01)¶

10.1016/j.cemconcomp.2013.01.004

Zhou Xiangming, Li Zongjin, Fan Mizi, Chen Huapeng
Journal Article - Cement and Concrete Composites, Vol. 37, pp. 304-311

Abstract

Short fiber-reinforced semi-solid fresh cement pastes and mortars, tailored for extrusion, have much lower water-to-binder ratio and higher viscosity than normal cement pastes or mortars. The rheology of these pastes or mortars cannot be characterized by traditional rheology test methods suitable for normal fresh cement pastes or mortars with much greater water-to-binder ratio and lower viscosity. In this paper, orifice extrusion is employed to calibrate rheology of the semi-solid fresh cement mortar. An analytical model is developed for orifice extrusion of semi-solid pastes and mortars obeying a rigid-viscoplastic constitutive relationship, von-Mises yield criterion and the associated flow rule. Orifice extrusion results are interpreted using the analytical model and the established experiment data interpretation method, and the associated rheological parameters are derived for the semi-solid fresh cement mortar. This study provides a simple analytical model, together with experiment and data interpretation methods, for characterizing the complex intrinsic rheological behavior of semi-solid fresh cement pastes or mortars.

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BibTeX

@article{zhou_li_fan_chen.2013.RoSSFCPaMiOE,
  author            = "Xiangming Zhou and Zongjin Li and Mizi Fan and Huapeng Chen",
  title             = "Rheology of Semi-Solid Fresh Cement-Pastes and Mortars in Orifice-Extrusion",
  doi               = "10.1016/j.cemconcomp.2013.01.004",
  year              = "2013",
  journal           = "Cement and Concrete Composites",
  volume            = "37",
  pages             = "304--311",
}

Formatted Citation

IEEE

X. Zhou, Z. Li, M. Fan and H. Chen, “Rheology of Semi-Solid Fresh Cement-Pastes and Mortars in Orifice-Extrusion”, Cement and Concrete Composites, vol. 37, pp. 304–311, 2013, doi: 10.1016/j.cemconcomp.2013.01.004.

CMOS

Zhou, Xiangming, Zongjin Li, Mizi Fan, and Huapeng Chen. “Rheology of Semi-Solid Fresh Cement-Pastes and Mortars in Orifice-Extrusion”. Cement and Concrete Composites 37 (2013): 304–11. https://doi.org/10.1016/j.cemconcomp.2013.01.004.