EGU23-6595
https://doi.org/10.5194/egusphere-egu23-6595
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Strength performance of high-water content clays stabilized with cement and superabsorbent polymers

Zhenhua Wang1, Joachim Rohn2, and Wei Xiang3
Zhenhua Wang et al.
  • 1GeoZentrum Nordbayern, University of Erlangen-Nürnberg, Erlangen, Germany (zhenhua.wang@fau.de)
  • 2GeoZentrum Nordbayern, University of Erlangen-Nürnberg, Erlangen, Germany (joachim.rohn@fau.de)
  • 3Three Gorges Research Center for Geohazards, China University of Geosciences, Wuhan, China (xiangwei@cug.edu.cn)

An ideal solution for dealing with large volumes of waste clays is to stabilize and use them as fill materials for road construction. This paper presents an experimental study on the strength behavior of the clays with high water content stabilized by cement and superabsorbent polymers (SAP) at different curing periods. The SAP can effectively improve the strength of cement soils, and the increase in strength becomes more significant with time. The microstructures of the stabilized soils are also investigated via mercury intrusion porosimetry (MIP) and microcomputed tomography (Miro-CT). Comparison of the porosity and the pore size distribution of the stabilized soils shows clearly that the SAP facilitated the hydration/pozzolanic reaction through the absorption-release on free water. With this concept, free water, cement content, and curing period are considered as important parameters based on Abrams' law to characterize the strength of the cement-SAP-soil system.

How to cite: Wang, Z., Rohn, J., and Xiang, W.: Strength performance of high-water content clays stabilized with cement and superabsorbent polymers, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-6595, https://doi.org/10.5194/egusphere-egu23-6595, 2023.