Geotextiles nowadays are widely used for road construction as a material for separation, protection and reinforcement. Raw materials for geotextile are mainly polypropylene and polyester fiber. Physical and mechanical properties of geotextile fabric play an important role to fabric's characteristics in various fields. This work investigates the relation between fabric surface weight and the tensile strength of Haicatex and Aritex fabrics. The experiments show that fabric's tensile strength has a relation to fabric surface weight. With fabric of 130 g/m2 to 320 g/m2, horizontal tensile strength of geotextile isi)igher than vertical one
Haicatex fabrics' horizontal tensile strength are higher than its vertical one by 14 percent - 63.8 percent. Haicatex fabrics' elongation increasing by surface weight, fabric's horizontal elongation raises from 46.2 percent to 70.7 percent, its vertical elongation raises from 52.2 percent to 62.9 percent. Aritex fabrics' elongation decreases when surface weight increases by 150 g/m2, 170 g/m2 and 200 g/m2 (the elongation reduces from 61.2 percent to 50.4 percent and 43.8 percent), then its elongation increases with fabric of 250 g/m2 corresponding with 57.8 percent.