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A very important characteristic of geosynthetic materials, besides the breaking force and deformation, is the puncture strength of geotextiles. Considering that the purpose of installation geosynthetic materials and inter alia to stabilize and strengthen the soil in which they are installed, it is necessary that they have a high puncture strength in order to fulfill its function. Geotextile materials suffer a great burden and at the installation process, in contact with smaller and larger sharp rocks, and if they have poor puncture resistance they may be damaged. In addition to stabilizing the soil in which they are installed, geotextile materials are used for the protection of geomembranes from puncturing or as an obstacle to sharp materials that are used in a construction to damage geomembrane. For this purpose it is necessary to withstand a lot of pressure on their surface, and to prevent the contact of the sharp material with the geomembrane. This paper presents the analyzed samples of nonwoven geotextile materials made from regular polyester, recycled polyester and polypropylene fibers. Based on the obtained values, it is possible to create an image of the values of the forces that these materials can be submitted to, as well as the differences between geotextiles produced from regular and recycled polyester and polypropylene.

The analysis of the puncture strength of nonwoven geotextile materials made from polyester and polypropylene fibres