The earth surfaces are the main area for disposal of waste. Soil is a natural universal water purifier in which the rainwater is filtered and thus protects the quality and correctness of the underground drinking water. The soil has a great absorption capacity, both physical and chemical. Cleanliness of the soil is greatly impaired by waste dumping on the soil surfaces that have not been previously prepared for that purpose. In order to protect the soil from the harmful effects of waste, first it must be protected and use as one of the solutions, various types of geosynthetics and accompanying geomaterials. At the landfills of various types of waste material, the geogrids are used as the reinforcement as an independent element or as an integral part of a geocomposite. Of course, this refers to the geomembranes and geotextiles as a part of one of the covered - protected or drainage layers of the landfill. The geogrid must meet the requirements (resistance) of mechanical strength, as well as the resistance to the chemical agents and elevated temperature.