Geogrid
A geogrid is geosynthetic material used to reinforce soils and similar materials. Soils pull apart under tension. Compared to soil, geogrids are strong in tension. Geogrids are commonly made of polymer materials, such as polyester, polyvinyl alcohol, polyethylene or polypropylene. They may be woven or knitted from yarns, heat-welded from strips of material, or produced by punching a regular pattern of holes in sheets of material, then stretched into a grid. There are four types of geogrids Uniaxial, Biaxial, Triaxial (Triax®) and Geogrid-Geotextile Composites. Each designed and manufactured for specific construction applications with various geometric and structural index properties.
Geogrids are commonly used to reinforce retaining walls, as well as subbases or subsoils below roads or structures. Soils pull apart under tension. Geogrids are commonly made of polymer materials, such as polyester, polyvinyl alcohol, polyethylene or polypropylene.
A geogrid is geosynthetic material used to reinforce soils and similar materials. Soils pull apart under tension. Compared to soil, geogrids are strong in tension. Geogrids are commonly made of polymer materials, such as polyester, polyvinyl alcohol, polyethylene or polypropylene. They may be woven or knitted from yarns, heat-welded from strips of material, or produced by punching a regular pattern of holes in sheets of material, then stretched into a grid. There are four types of geogrids Uniaxial, Biaxial, Triaxial (Triax®) and Geogrid-Geotextile Composites. Each designed and manufactured for specific construction applications with various geometric and structural index properties.
Geogrids are commonly used to reinforce retaining walls, as well as subbases or subsoils below roads or structures. Soils pull apart under tension. Geogrids are commonly made of polymer materials, such as polyester, polyvinyl alcohol, polyethylene or polypropylene.
The Bombay Textile Research Association (BTRA), a pioneer textile research institute over the 65+ years, was established in 1954 by Govt. of India along with the industry association to boost research, conducting testing, consultancy and certification in the field of textile, polymers, fibers and other materials.
Following are the tests done at BTRA for Geogrids
- Tensile Strength & Elongation (Single Rib) [ASTM D: 6637 A] (Multi Rib) [ASTM D: 6637 B]
- Tensile Strength & Elongation (Multi Rib) [ASTM D: 6637 B]
- Junction Strength [ASTM D:7737 / GG-2] for uniaxial geogrid
- Junction Efficiency[ GG-2] for extruded geogrid only
- Carbon Black Content [ASTM D: 1603]for extruded geogrid only
- Melt Flow Index [ASTM D: 1238] for extruded geogrid only
- Mass per square metre [ASTM D: 5261 / ISO: 9864]
- Aperture Size & Number of ribs per metre
- Installation Damage [ASTM D5818]
