Mechanical characteristics of nonwoven geotextile materials depend on their structural and constructional solutions, as well as technological development conditions. In addition, a very important role have the structural and physical-mechanical properties of the fiber, mass per unit area of geotextile and density of needle punching in the production process. This paper presents the results of analysis of mechanical properties of nonwoven geotextile materials with mass per unit area 300 glm(2), intended for road construction. Breaking characteristics of geotextile materials made from regular and recycled polyester fibers are analyzed. Characteristic of breaking strength of geotextile materials was measured on dynamometer ZWIK, the results were analyzed by software testXpert. The obtained results are defined relation between force-elongation and rheological models have been developed which can be used to simulate the behavior of nonwoven geotextile materials of regular and recycled PES fiber during exploitation.