Journal article
Compressibility and strength development of geopolymer stabilized columns cured under stress
M Yaghoubi, A Arulrajah, M Miri Disfani, S Horpibulsuk, M Leong
Soils and Foundations | JAPANESE GEOTECHNICAL SOC | Published : 2020
Open access
Abstract
The objective of this study was to evaluate the effects of geostatic stresses on the compressibility and strength development of submerged geopolymer stabilized columns. In this research study, modified 1D consolidation cells were developed to replicate deep mixed columns in the field when subjected to varying stresses at various depths. Various combinations of fly ash (FA) and slag (S) precursors were used and activated with a liquid alkaline activator (L) to form the geopolymer binder. Soil-column samples were cured under vertical stresses of 0, 50, 100 and 200 kPa for up to 28 days. The results indicated that by increasing the curing stress, the vertical strain and constrained modulus of ..
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Awarded by Australian Research Council
Funding Acknowledgements
This research was supported under Australian Research Council's funding scheme (project number LP150100043). The second and fourth authors are thankful to the financial support from National Science and Technology Development Agency under the Chair Professor Program [Grant No P-19-52303].