Generally warming cannot exceed recommended
value of 30°C after 3 hours and the like, or for example in
the cooling stage exceed the optimal speed of decline of
temperature, thereby avoiding exceeding strength of concrete
mixtures in tensile (depending on internal and external
stress) as well as cracks. It is obvious that the processes
and distribution of hydration heat inside the concrete mixtures
are significantly different for the laboratory measured
values and the real situation.