Engineering & Technical Principles in the design & application of Geotextiles in Civil Engineering
By definition, geotextiles are “any permeable textile used with foundation soil, rock, earth, or any other geotechnical engineering-related material as an integral part of a human-made project, structure, or system”. Geo-textiles have found use in a large number of civil engineering structures such as pavements, dams, slopes and drainage facilities. Their primary use is for their technical and performance properties rather than for aesthetic and decorative characteristics. Geo-Textiles also known as Industrial Textiles, High Performance Textiles, Engineered Textiles, Technical Textiles and Industrial Fabrics are specially designed and engineered structures that are generally used in processes /services of non textile industries. There are bright prospects for new geo-textile materials; test methods and application principles in response for any nations need to upgrade their infrastructure. This need has made geo-textiles, the largest group of geo-synthetics in terms of volume.
Geo-textiles are made up of woven, non-woven and knitted type of fabrics. They are classified based on the method used to place the threads or yarns in the fabric. Woven geo-textiles are made from weaving monofilament, multifilament, or slit film yarns. These fabrics are formed in a two-step process, first by slitting the film to create yarns and second, by the uniform and regular interweaving of threads or yarns in two directions. Woven products have distinct and uniform openings with a regular visible construction pattern. These fabrics are highly desirable for sediment control like silt fence and road stabilization applications. Non-woven fabrics are formed by a random placement of threads in different processes like in needle punching, a resin-bonding or mat and bonded by heat-bonding. No visible thread pattern is seen in non-woven fabrics. These are typically used for subsurface...