Appearance Inspection
Color and Luster: High - quality geocells have a uniform color and luster, without obvious color differences. If the color is dull, there are variegated colors, or the color depth varies, it may be due to uneven mixing of raw materials during the production process or the addition of inferior additives, indicating possible poor quality.
Surface Flatness: The surface of a good geocell should be smooth and flat, without obvious wrinkles, bubbles, cracks, edge defects, or corner chipping. An uneven surface not only affects the laying effect but may also cause stress concentration during use, leading to damage to the geocell.
Welding Point Quality: The welding points of the geocell should be firm and uniform, without false welding or missed welding. Gently pull the joint of the geocell by hand to check whether the welding points are easy to fall off. If the welding points are not firm, the geocell is likely to fall apart when subjected to pressure or tension, failing to perform its proper function.
Dimension and Specification Inspection
Cell Height: Use tools such as calipers or rulers to measure the cell height of the geocell. It should meet the product specification requirements, with the deviation within the allowable range. Insufficient cell height may affect its ability to restrain the filling material and reduce the reinforcement effect.
Sheet Thickness: Use a thickness gauge to measure the thickness of the geocell sheet. Different models and specifications of geocells have corresponding thickness standards. Only when the sheet thickness is uniform and meets the standard can the geocell have sufficient strength and durability.
Mesh Size: Check whether the mesh size of the geocell is uniform and consistent, meeting the design requirements. Excessive deviation in the mesh size will cause uneven distribution of the filling material in the cell, affecting the overall stability and bearing capacity.
Performance Index Testing
Tensile Strength: Detect the tensile strength of the geocell through a tensile test. High - quality geocells should have a high tensile strength and be able to withstand a large tensile force without breaking. Generally, the tensile strength should meet relevant national or industry standards.
Tear Strength: Conduct a tear test to measure the tear strength of the geocell. The tear strength reflects the geocell's ability to resist tear damage. Geocells with high tear strength are less likely to be torn during use, effectively ensuring their service life and performance.
Creep Performance: Creep refers to the phenomenon that the deformation of the geocell continuously increases over time under long - term load. Evaluate the creep performance of the geocell through a creep test. Geocells with a low creep rate have better quality and can maintain stable performance during long - term use.
