Knowledge Of Geotechnical Materials

Geotechnical materials are now widely utilized in geotechnical engineering geosynthetics, it's the overall term of polymer products. As early because the 1920s, the industry department successfully produced synthetic materials, but it had been not until the late 1950s that this material was gradually popularized as a replacement sort of artifact in geotechnical engineering. Early products were mainly water-permeable woven and non-woven geotextiles, and later impermeable geotextiles were produced. With the development of engineering practice and manufacturing technology, geogrid and other combination products with high imposition bars are manufactured successively.

In this way, the first word “geotextile” has been faraway from summarizing the meaning of all types of products, so there are many various names within the world, among which the word “geotextile” is that the commonest, but it's still commonly referred to as a geotextile. Geotechnical materials are divided into several categories: geotextile, HDPE geomembrane, geogrid, dimple drainage board, composite high quality HDPE geomembrane, geonet, geocell, bentonite waterproof blanket (GCL), etc.

Among them, optical fiber geogrid may be a new sort of excellent geotechnical base material to strengthen the pavement and roadbed. the merchandise is formed of alkali-free optical fiber filament because of the main staple, woven by unique warp knitting technology, and coated by special glue. It can effectively improve the strain distribution of the road structure, resist and delay the occurrence of reflection cracks caused by the grassroots cracks, improve the service life of the road, reduce the value and improve the development quality. the merchandise may be a new quite patent product, the corporate launched the coated fiberglass geogrid since the pressure-sensitive adhesive is handled and become, keep the optical fiber geogrid on the idea of the features and functions, make the grille and get in touch with surface together, has the characteristics of convenient construction, paving leveling, especially suitable for highway construction, paved surface reinforcement, reinforcement of the old road reconstruction and other projects.

Composite geotextile is to use optical fiber or high-strength polyester yarn with nonwoven fabric by warp knitting weaving or glue them into a replacement sort of composite high quality filament nonwoven geotextile materials, organically combined with the optical fiber and nonwoven fabric both excellent properties, besides being of geogrid have high strength, low elongation, high coefficient of elasticity, heat resistance, and other features, also features a good ability of anti permeability and filter may be a quite multi-functional geosynthetic material, can effectively prolong the service lifetime of the project, reduce the upkeep frequency, reduce the engineering cost, is suitable for road pavement subgrade engineering and water conservancy dike reinforcement enhancements and isolation protection.

High strength polyester geogrid may be a new sort of top quality geogrid material to strengthen the roadbed. it's made from high strength polyester or polypropylene fiber as a staple through warp knitting directional weaving and special process of dipping and coating. With high lastingness and low elongation, it can effectively prevent road cracking in roadbed engineering, improve the bearing capacity of sentimental soil foundation, prevent foundation settlement, reduce project cost, improve construction efficiency, and thus improve the standard and repair lifetime of the highway, railway, and other projects.