One of relevant problem areas concerning the rubber-textile conveyor belt, which is suitable for application of the non-
destructive testing, is a research of technical damage of the conveyor belts focused on occurrence and extension of cracks on
the belt surface. This research question is neglected considerably in the in the up to now published scientific works, in spite
of a fact that such kind of investigation can be very helpful for understanding of an influence of the thermal degradation
processes in the belt surface layers with regard to the overall durability of the conveyor belt and its inner structure. It is also
important to answer a question whether there are accumulated material particles in the surface structure cracks of the
conveyor belt