Experimental Study on the Influence of Aging on Mechanical Properties of Geogrids and Bearing Capacity of Reinforced Sand Cushion

Table 1

Physical property indexes of biaxial geogrids.

Sample code	Grid size (mm × mm)	Tensile strength (kN/m)	Strength at 2% strain (kN/m)	Strength at 5% strain (kN/m)	Mass per unit area (kg/m^2)	Elongation at break (%)
BG1	35 × 33	15.2	6.2	11.4	0.41	12.5
BG2	33 × 32	25.5	8.5	16.5	0.53	14.3