The plot of unconfined compression strength, qu, against
ratio of total clay water content to cement contents Cw/Aw is
shown in Fig. 3.5 where, qu reasonably follows a function
of Cw/Awat certain curing time, even though the data scatter
is quite high. The parameter Cw/Awhas been demonstrated
previously by Miura et al. (2001) to generalize the strength
development at a certain curing period, curing method, type
of cement, etc. of cement-admixed clay. Both CwandAware
initial conditions of mixing, not after-curing conditions of
the cured treated soil. The after-curing void ratio, eot, which
takes into account, primarily, the effect of total clay water
content and, secondarily, the effects of cement content and
curing time, was adapted in this thesis work to supersede
the Cwparameter. Since the initial state which reflects the
failure strength at a certain shearing process of cured
cement-admixed clay is dependent on curing time as well
as cement content and total clay water content present in
the clay water- cement paste, it is logical to utilize a
parameter that combines together the effects of these
factors. Besides, the eotparameter is essentially required in
defining the initial state of the cured treated soil prior to
any loading application.