Tests regarding parts and materials
Geosynthetics
Geotextiles are made based on water-permeable materials and used together with soil, rock, and materials that contain soil. Because they can be constructed easily and help save construction costs, they are used widely for construction and civil works, such as reinforced soil retaining walls, soft ground, river levee, dams, tunnels, airports, roads, ports, and waste landfill.
KATRI is designated as an institute that specializes in carrying out quality inspection (Ministry of Construction & Transportation 2013-15) and has carried out tests comprehensively regarding geosynthetics that are used for construction and civil works.
Main test items
| Coir/Jute-net | Material, weight, dimension (inner diameter), tensile strength, and water absorption rate |
|---|---|
| Geomat | Material, weight, tensile strength, tensile elongation, seam strength, coefficient permeability, and specific gravity |
| Geonet | Weight, thickness, density, tensile strength, carbon black content, horizontal/vertical coefficient permeability, and peel strength |
| Geomembrane | Thickness, density, tear strength, puncture strength, absorptiveness, dimension stability, flow index, carbon black content, and low temperature resistance |
| Geogrid | Material, weight, carbon content, mesh size, tensile strength, elongation rate, tensile strength when elongated for 2% and 5%, and junction strength |
| Silt protector | Material, weight, tensile strength, tensile elongation, seam strength, tear strength, coefficient permeability, and shrinkage rate.. |
| Drain board | Material, compressive strength, shape, weight, thickness, tensile strength, and permeability coefficient |
| Menard cylinder drain method | Material, outer diameter, inner diameter, weight, coefficient permeability, and thickness |
Related test equipment
Universal testing machine, drain performance testers, vertical and horizontal drain performance testers, Opening size determination tester(dry and wet), and others.