South Asia Geosynthetics; Used In Rail and Road Construction Projects to Provide Better Stability to the Structure

South Asia geosynthetics have been successfully used to fulfill a number of functions that contribute significantly to the good performance of roadways. Geosynthetics can be used to minimize the movement of soil particles due to flow of water. Geosynthetics are excellent civil engineered materials that are indispensable for environmental applications such as protection, barrier, drainage, stiffening, reinforcement, filtration, separation, and containment. It is a planar product that is used with soil, rock, earth, or other geotechnical related material as an integral part of a civil engineering project, structure, or system.

South Asia geosynthetics are available in different types, such as geocomposites, geotextiles, geocells, geomembranes, vertical drains, geogrids, geonets, and geosynthetic clay liner. High-density polyethylene (HDPE), synthetic rubber, polypropylene (PP), natural fiber polyester, and polyvinyl chloride (PVC) are some common raw materials that are used to manufacture geosynthetics. These materials are widely used in various building and construction projects, as they provide different attributes such as enhanced stress absorption capacity, stabilization and reinforcement of the base, subgrade separation, and others.

Moreover, South Asia geosynthetics are widely used in construction of railway lines to provide better stability to the structure and improve stress propagation. Governments of the South Asian countries are investing profoundly in rail and road sector, which in turn increased the demand for geosynthetics in this region. In South-East Asia, the railway network is improving in terms of regional connectivity, with several projects being developed or planned that will connect existing routes under a Pan Asia railway network.

For example, the Singapore-Kunming Rail Link (SKRL) is a pan-Asian high-speed railway network being developed to connect the countries of Malaysia, Cambodia, Myanmar, Laos, Republic of China, Singapore, Thailand, and Vietnam. Growing development of rail and road and networks in South Asia is expected to increase the demand for geosynthetics.