The first phase is often called inductive phase and
takes approximately from 1 to 2 hours after cinder is
mixture with water. This phase is divided into two parts.
The first (preinductive) part is very short, it takes
approximately 10-15 minutes and it is the process of
wetting of concrete granules. The other part of inductive
phase (dormant) does not release so much heat like the
first part. There begins increasing of concrete paste
viscosity, its state is close to viscous liquid [6].