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Proceedings of the 18
th
International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
Proceedings of the 18
th
International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
Figure 4. Generalized strength equation for the unconfined compressive
strength of cement based stabilized soft soils.
5 CONCLUSION
The paper presents a new simple method to predict the
unconfined compressive strength at 28 days of curing time of
cement based stabilized soft soils, whatever be the water content
and binder content. The method was initially developed for the
soft soil of “Baixo Mondego” chemically stabilized, and then
was sucessfully applied to a wide range of cement based
stabilized soft soils. Thus, this new method seems to be
independent of the soft soil, which allows the definition of a
generalize relationship (presented in Figure 4). At limit, the
number of unconfined compression tests required can be
reduced to one if it is applied the generalized equation and the
binder content chosen is 18%. The method proposed in this
paper is helpful for the laboratory optimization process of the
chemical stabilization at the pre-design stage.
6 ACKNOWLEDGEMENTS
The authors would like to express their thanks to CIMPOR for
supplying the binders used in the work and to the institutions
that supported the research financially: University of Coimbra,
CIEC and FCT (PTDC/ECM/101875/2008).
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