Geo Textile - A Tremendous Invention of Geo Technical Engineering

Journal of Scientific and Engineering Research, 2017

Technical textiles has the diverse range of products which will lead the future world market and the researchers from the various field of science and engineering will work together for the development of these textile materials. Among various types of technical textiles, geotextiles possess very important class due to its versatile applications in roads, dams and constructions industries. Geotextiles are the permeable textile materials which mainly used for filtration, drainage, separation, reinforcement and stabilization purposes. Geotextiles is the fastest growing industry and a promising field of technical textiles. This paper presented the potential of geotextiles in civil and construction industries. The review paper will be introduced by first discussing technical textiles and geotextiles as awhole. Next, the paper will continue on to discuss the raw materials such as natural and synthetic fibers used in it, the manufacturing process and functional requirements. Finally, the functions and major applications of geotextiles has been presented. The global market of geotextiles has also been addressed here.

GRD Journals, 2019

Geotextiles play a very important and crucial role in the civil engineering works. Geotextiles are permeable textile structures made of polymeric materials and are used mainly in civil engineering applications in conjunction with soil, rock and water, performing various functions such as separation, filtration, drainage and reinforcement. They come in three basic forms: woven, non-woven, or knitted. They are the largest group of geosynthetics in terms of volume. They are used in geotechnical engineering, heavy construction, building and roadway construction, hydrogeology and environmental engineering, etc. Geotextiles are used with foundations, soil, rock, earth or any other related material as an integral part of any project, structure, or system. The possible applications of geotextiles in civil engineering field have been successfully developed and are beneficial in terms of economics, durability and performance. They are used in earth dam, roadway, highway, rail road, and industry, stabilisation of soil of rock slopes, drainage control, tunnel construction, coastal medical treatment and foundation. This paper provides an overview of the properties, functions and uses of Geo-textiles in roadway construction.

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Geo-textiles are the permeable fabrics which, when used in association with soil have the ability to separate, filter, reinforce, protect, or drain. Typically made from polypropylene or polyester, geo-textile fabrics come in three basic forms: woven, needle punched, or heat bonded. The original and still sometimes used term for geo-textiles is filter fabrics . Geo-textiles have many applications and currently support many civil engineering applications including roads, airfields, embankments, retaining structures, reservoirs and construction site. Geo-textiles have a major role in construction of paved roads over areas having high ground water table. There are several key applications, construction of pavements, in asphalt concrete overlays and for drainage systems, which helps in enhancing the performance and extending the service life of roads. Drainage of water from pavements has always been an important consideration in road design. When functioning as a drain, geo-textiles acts...

Geote xtile a newly emerging field in the civil engineering and other fields, offer great potential in varied areas of application globally. It plays a significant part in modern pavement design and maintenance techniques. Ideal materials for infrastructure work s, roads, harbors and many others. Growth in use of geotextiles worldwide for transportation application. Geotextiles have been used for thousands of years. Geotextiles were used in roadway constructions in the days of the Pharaohs to sta bilize roadways a nd there ages. Textiles are not only clothing for human body, but also for our motherland in order to protect her. Geotextiles has proven to be among the most versatile and cost - effective gr ound modification material. Geotextiles should fulfill certain requirements like it must permit material exchange between air and soil without which plant growth is impossible, it must allow rain water to penetrate the soil from outside and also excess water todrain out of earth without erosion of soil. To obtain all these properties in geotextiles, the proper choice of textile fiber is of paramountimportance.

Geosynthetics play an important role in many civil engineering applications, especially soil stabilization, railways, coastal structures and water resources. It is often used to achieve economic and technical benefits. Geotextile is one of the types of geosynthetics that is called in American Standards as "A permeable geosynthetic comprised solely of textiles". Geotextile performs one or more important functions in marine works such as; filtration, separation, drainage, erosion control and reinforcement. The needs of geotextiles are increasing day by day in developing countries like Egypt due to the strong development in infrastructures of roads, railways, ports and terminals, marine works, etc.

Geotextiles are generally used for straining and separation in road constructions, to prevent relocation and intermingling of materials, thus allowing free movement of water.Geotextiles act as a soupy mass between the two consecutive layers of soil. The geotextiles network should be enough stable such that no difficulty would arise during carrying, installation, and repair work in future. It is commonly divided into two categories: Woven and Nonwoven geotextiles. The functions performed by geotextiles are: drainage, sealing, filtration, separation, and reinforcement. The properties of geotextiles like, elongation, tensile strength, diffusive permeability, flexibility, etc are predominantly affected by its molecular weight. Polyamide, Polypropylene, Polyester, Polyethylene are the four main raw used in the fabrication of geotextiles.After 2005, The World Bank made geotextiles use mandatory in infrastructures funded by it," says Aditya Agarwaal, CEO of Jeevan Product which resulted in growing awareness about use of geotextiles.

GRD Journals- Global Research and Development Journal for Engineering, 2023

Asphalt and a Portland cement concrete sub layer are used in composite pavements. They are typically employed in road rehabilitation rather than new road building. Over worn-out concrete, asphalt overlays are occasionally used to restore a smooth wearing surface. For the management of reflective cracks, geosynthetics can be employed. In the break and seat and crack and seat procedures, a strong weight is used to crack the concrete before the broken pieces are seated into the subbase using a heavy roller. The machinery used to crack the concrete pavement and the size of the fragments produced is the two procedures' primary differences. According to the hypothesis, heat stress will be dispersed over a larger area by many little fractures than by rare large joints, which will lessen the tension on the asphalt pavement above. The old, worn-out concrete is more thoroughly fractured during stabilisation, thereby turning the old pavement into an aggregate base for a new asphalt road. Resurfacing a worn-out asphalt road using Portland cement concrete is done with white topping. Today's effective engineering technique, geotextiles, has found widespread use in the creation of paving. Under paved and unpaved roadways, geotextiles are most frequently used for the separation/stabilization application. Both paved and unpaved roads can benefit from the separation, stabilisation, reinforcement, and filtration offered by geotextiles.

Autex Research Journal

Nonwoven geotextiles are often used in road construction as a separation layer. They consist of the web of fibers with different orientations. The orientation of fibers has an important influence on physical and mechanical properties of nonwoven geotextiles. The production of nonwoven geotextiles is cheaper in comparison to woven or knitted fabrics which can also be used as separation geotextiles. The purpose of this research was to study the influence of structural properties of nonwoven geotextiles, namely the diameter of fibers and mass and thickness of nonwoven geotextiles, on their mechanical and hydraulic properties. Six types of nonwoven geotextiles were used in the research. They were produced by the drylaid process (carded) using mechanical bonding technique and also with the combination of mechanical and thermal bonding technique. The research confirmed that the bonding technique and structural properties significantly influence the separation and filtration properties of ...