firmness

In this article, there are given the results of studies on the strength of steel-concrete bent elements, in which additional reinforcement was introduced at various levels of initial reinforcement and loading, as well as after unloading, and the beams were brought to destruction. The need for overhead cover reinforcement during the process of its exploitation appears not only in the course of reconstruction but also due to its physical aging that is caused by various factors.

Concepts of firmness and balancing are considered. Place of firmness and balancing in marketing logistics is defined.
The authors have come to the conclusion that the system which is considered stable for any moment is not
necessarily simultaneously balanced. According to the integrated continuum of logistics development intensity
and marketing concepts balancing of marketing logistics have a place in social and ethical marketing concept.
Firmness of marketing logistics can be observed in any point of continuum if situation is constant for a long time.