In railway construction one of the priority issues is the development of technologies and materials aimed at maximum damping of vibrodynamic impacts arising during the movement of trains, reducing their harmful effects on the railroad track, as well as improving the safety and comfort of their movement. One of the effective ways to reduce vibrodynamic loads in the area of the rail joint is the use of elastic under-rail pads. Scientific bases of rubber modification by additives of different nature formed as a result of numerous researches and confirmed by practice have played an important role in the development of composite rubber-technical products technology.It is recommended for the undergraduates, senior researchers of the applicants and independent applicants as well as for the engineers and technicians of the building materials industry and building industry.