2.2.4. Designation of mixtures
Mixtures have been designated in terms of the variable components
of the mixture; namely percentage of OPC in the total binder
(P5, P6, P8, P10 and P12), percentage of alkaline activator to the
total binder (A35, A40 and A45) and the ratio of sodium silicate
to sodium hydroxide solution (SS/SH as R1.5, R2.0 and R2.5).