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The Type of Geotextile and Geotextile Application in Road Construction

What are non-woven(nonwoven) types of geotextile fabric? What are woven types of geotextile fabric? The following is an introduction to everyone! Types of geotextile fabric refer to geotechnical engineering. Some of the types of geotextiles fabric can be made without weaving, which is called non-woven types of geotextiles fabric. It is generally used for filtering, anti-filtering, reinforcement, isolation, protection, and other functions. Woven geotextiles are composed of at least two sets of parallel yarns (or flat yarns), one set along the longitudinal direction of the loom (the direction of fabric travel) is called warp yarns, and the other set is called weft yarns.

Types of Geotextile

There are many types of geotextiles fabric, which can be divided into polyester geotextiles, polypropylene types of geotextile, and polyester types of geotextiles according to different raw materials.

1. What is Polyester(PET) Geotextile Fabric?

Polyester(PET) types of geotextile fabric are a kind of non-woven and industrial fabric. It is made of polyester types of geotextile fabric crimped staple fibers with a fiber fineness of 6-12 denier and a length of 54-64 mm. The cloth is made into cloth through the process of opening, carding, messing (short fibers are intertwined with each other), laying (standardized entanglement and fixation), needle punching product technical, and other production processes of non-woven production equipment.

2. What is Polypropylene(PP) Geotextile Fabric?

Polypropylene types of geotextile fabric cloth is a kind of types of geotextile, also known as types of geotextile fabric, which is a water-permeable geosynthetic material made of synthetic fibers by back needling or weaving. Polypropylene (PP) types of geotextile fabric have superior water permeability, filterability, and durability, and can be used in railways, highways, sports halls, dams, hydraulic construction, coastal mudflats, reclamation, environmental protection, and other projects. There are staple fiber needle-punched non-woven polypropylene types of geotextiles fabric and split-film silk woven polypropylene types of geotextiles fabric.

3. What is Polyester(PET) Filament Geotextile Fabric?

Polyester(PET) filament types of geotextile fabric is a material made of polyester types of geotextile fabric by spinning and needle punching and has an excellent heat resistance and light resistance.

Short Filament Types of Geotextiles VS Long Filament Geotextiles

Geotextile fabric is a general term for a type of geotextile fabric that has been used more for protection and reinforcement in various environmental projects in recent years. According to different division methods, types of geotextiles fabric can be divided into various types, of which staple fiber acupuncture is the most used. There are two types of non-woven types of geotextiles fabric (known as “short filament types of geotextiles”) and filament spunbond needle-punched nonwoven types of geotextiles fabric (known as “long filament geotextiles”). So what’s the difference between these two kinds of geotextiles? Let’s analyze it below.

1. The first is the difference in raw materials: the main raw material of short filament geotextile road construction is PP polypropylene fiber or PET polyester staple fiber, and the main raw material of filament geotextile road construction is PET polyester chips. Filament geotextiles road construction are used filament spunbond needle-punched nonwovens made of polyester fibers. Compared with short filament geotextiles road construction, the strength, elongation, bursting and other parameters of the same specifications are superior. On short-filament geotextile road construction. Short filament geotextile road construction is made of polyester or polypropylene staple fibers needle-punched and consolidated, and the same specifications are different from filament geotextile road construction.

2. The production process is different: the short-filament geotextile road construction is made by opening and combing polyester staple fibers and then laying nets and acupuncture. Filament geotextiles are produced from polyester chips by melt spinning, air-laid, and needle-punched consolidation processes. Omit the production process, filament geotextile road construction is more complicated, so the production cost is also higher.

3. The quality standards are different: the short-filament geotextile road construction can be divided into several grades such as national standard, large level, medium level, and small level according to different quality levels, and the colors are also white, grass green, dark green, black, etc. There is only one national standard for silk geotextiles, and the color is white.

4. The performance indicators are different: in the case of the same specification and weight, the tensile breaking strength, bursting strength, tearing strength and other indicators of the filament geotextile road construction is much higher than those of the short filament geotextile road construction.

It can be seen from the above analysis that two products of the same specification have different prices and different performance indicators. But, both of them can play the role of isolation, protection, and reinforcement in the project. , the short-filament geotextile road construction or filament geotextile road construction should be selected according to the engineering situation and design requirements.

What is the Difference Between Filament Geotextile and Short Filament Geotextile?

1. The maintenance function of non-woven road construction geotextile fabric is highlighted in its bursting compressive strength, thickness, and tensile strength. Because the polyester filament road construction geotextile fabric production line has large capital investment and high technology content, it is generally manufactured by large factories; while the polyester staple fiber non-woven road construction geotextile fabric equipment is simple, and the product quality is uneven. Filament road construction geotextile fabric production equipment has large investment and high technical content and is generally produced by large factories, while staple fiber geotextile equipment is simple, and the quality of products varies.

2. Because polyester filament road construction geotextile fabric and polyester staple fiber non-woven road construction geotextile fabric are different in plant fiber shape and production process level, the porosity of the two is very different. The pores of polyester filament road construction geotextile fabric are different. The porosity of the polyester staple fiber non-woven road construction geotextile fabric is small. Thus, the probability of clogging of the polyester filament road construction geotextile fabric is less. Once a blockage situation occurs, the leachate will accumulate in the landfill area, making all normal landfill work very difficult and causing safety hazards.

3: The puncture resistance of polyester filament road construction geotextile fabric is better than that of polyester staple fiber non-woven road construction geotextile fabric, and the friction coefficient of filament road construction geotextile fabric is greater than that of polyester (PET)staple fiber road construction geotextile fabric. The road construction geotextile fabric can protect the geomembrane from the aging of ultraviolet rays, and the anti-ultraviolet ability of the road construction geotextile fabric itself is related to its thickness. The influence of ultraviolet rays on the polyester filament road construction geotextile fabric is reflected in the surface layer.

4: The polyester filament geotextile road construction geotextile fabric with the same total area quality has better stress relaxation properties than the polyester staple fiber non-woven geotextile, and the puncture resistance of the filament road construction geotextile fabric is better than that of the polyester staple fiber road construction geotextile fabric. Polyester filament road construction geotextile fabric with the same mass per unit area has better creep resistance than polyester staple fiber road construction geotextile fabric.

5: The slope protection of the garbage disposal site is generally steep so that the gasket does not slip off, and the frictional resistance between the gasket layer and the layer must be as large as possible. The frictional resistance of polyester filament  road construction geotextile fabric  is higher than that of polyester staple non-woven  road construction geotextile fabric

6: The non-woven geotextile road construction can protect the anti-seepage geomembrane from UV embrittlement, and the geotextile road construction’s own anti-ultraviolet light working ability is related. The harm of ultraviolet light to polyester filament geotextile road construction is highlighted on the surface, so thick polyester filament geotextiles should be used as much as possible in garbage disposal sites. Filament geotextile road construction has high compressive strength and strong puncture resistance. Corrosion resistance, corrosion resistance, anti-microbial strain, anti-aging. It has excellent water absorption, filterability, soil retention, and has the functions of protection, drainage pipe filtering, and safety protection. Low cost, excellent best competitive price, simple construction, and convenient application.

Note

1. The use of geotextile in road construction can only be cut with a geotextile knife (hook knife). If it is cut in the field, special protection measures must be taken for other materials to prevent unnecessary damage to the use of geotextile in road construction due to cutting;

2. When laying use of geotextile in road construction geotextiles, all necessary measures must be taken to prevent damage to the material below;

3. When laying use of geotextile in road construction geotextiles, care must be taken not to let stones, a lot of dust or moisture, etc., that may damage the use of geotextile in road construction geotextiles, may block drains or filters, or may cause difficulties in later connections. or underuse of geotextile in road construction;

4. After the installation is completed, inspect the surface of all use of geotextile in road construction to identify all damaged landowners, mark and repair them, and make sure that the paved surface has no foreign substances that can cause damage, such as broken needles and other foreign objects;

5. The connection of the use of geotextile in road construction geotextiles must follow the following regulations: under normal circumstances, there should be no horizontal connection on the slope (the connection must not intersect with the contour of the slope), except for the repaired place.

6. If the suture is used, the suture must be made of the same or more than the material of the use of geotextile in road construction geotextile, and the suture must be made of chemical UV-resistant material. There should be an obvious color difference between the suture and the use of geotextile in road construction for easy inspection.

Pay special attention to the stitching during installation to ensure that no dirt or gravel from the gravel cover gets into the middle of the use of geotextile in road construction.

Non-Woven Fabrics VS Woven Geotextile in Road Construction

The difference between non-woven fabrics and woven use of geotextile in road construction, how to distinguish them? Non-woven fabric’s use of geotextile in road construction also has some other unique properties. For example, non-woven fabrics use of geotextile in road construction are very fluffy, have high bulk, excellent air permeability, and no The woven fabric use of geotextile in road construction is soft and has a fabric-like feeling that paper does not have, and also has a stiffness that ordinary cloth does not have. With the posting of woven geotextile road construction wallpaper, consumers can distinguish from the touch.

Non-woven geotextile’s use of geotextile in road construction are also needle-punched and spun lace, short-fiber, and long-fiber. Woven geotextiles use geotextile in road construction are generally used in the reinforcement and reinforcement use of geotextile in road construction of geotechnical projects. The main function is reinforcement and enhancement, and it has the function of plane isolation and protection. Compared with non-woven fabrics’ use of geotextile in road construction, woven geotextile road construction use of geotextile in road construction does not have the function of filtering, that is, plane drainage.

Woven geotextile use of geotextile in road construction is a permeable geosynthetic material made of synthetic fibers through needle punching or weaving. Woven geotextile’s use of geotextile in road construction is also called reinforced geotextiles. Woven geotextile’s use of geotextile in road construction is composed of at least two sets of parallel yarns (or flat yarns). One set along the longitudinal direction of the loom (the direction in which the fabric travels) is called the warp, and the other set is called the weft. The warp and weft yarns are intertwined and woven into a cloth shape using different weaving and weaving equipment and processes.

Woven fabric’s use of geotextile in road construction is also known as woven fabrics. It is a fabric made of two or more sets of perpendicular yarns interwoven at a 90-degree angle for warp and weft. The yarns in the length direction of the cloth are called warp yarns, and the horizontal yarns are called weft yarns. When judging and distinguishing warp and weft yarns, generally look at the selvage, and the direction parallel to the selvage is the warp.

  1. It can be woven into different thickness grams tensile strength and compactness according to different scopes of use. Generally, the thin woven geotextile road construction has strong tensile strength in both vertical and horizontal directions (longitude is greater than latitude) and has good stability.
  2.  The woven geotextile road construction is divided into two categories: reinforced geotextile road construction and non-reinforced geotextile road construction according to the weaving process and the use of warp and weft. The warp tensile strength of reinforced geotextile road construction is far greater than that of ordinary geotextile road construction.
  3. The general practical application of woven geotextile road construction and the reinforcement and reinforcement of geotechnical projects, the main function is reinforcement and reinforcement, with plane isolation and protection functions, and those without plane drainage functions can be selected according to the specific purpose of use.

Features of Woven Geotextile Road Construction

1. High tensile strength: Due to the use of plastic flat wire, it can maintain enough strength and break elongation in dry and wet conditions.

2. Corrosion resistance item: It can resist corrosion for a long time in soil and water with different pH.

3. Good water permeability: There are gaps between the flat wires, so it has good water permeability.

4. Good anti-microbial properties: No damage to microorganisms and moths.

5. Convenient construction: Because the material is light and soft, it is convenient for transportation, laying, and construction.

Items150g200g250g300g350g400g450g500g600g
Tensile Strength, KN/M7.51012.51517.520.522.52530
Elongation,%40-80
Tear Strength, IN0.210.280.350.420.490.560.630.70.82
CBR Puncture Strength, KN1.41.82.22.63.03.54.04.75..5
Geotextile Parameters Specifications

The Main Application Geotextile Road Construction:

1. Geotextile road construction is used in water conservancy, electric power, harbor, highway, railway construction, and other projects.

2. Reinforcement: geotextile road construction used for rock engineering such as roads, railways, airports, stone dams, anti-slope embankments, retaining wall backfills, borders, etc., dispersing soil stress strength, and increasing soil modulus, limiting the soil sliding, and improving size stability.

3. Protective effect: geotextile road construction prevents the embankment from being washed by wind, waves, tides, and rain, geotextile road construction and be used for bank protection, slope protection, geotextile road construction bottom protection, geotextile road construction soil erosion prevention.

4. Anti-filtering effect: Geotextile road construction is usually used for the filter layer of embankments, dams liners, geotextile road construction rivers project, coastal rocks project, soil slopes, and retaining walls to prevent sand particles from passing through while allowing water or air to pass.

5. Blocking function: The geotextile road construction function of placing the woven cloth in the channel of the flowing liquid with suspended particles to block the fine mud particles and allow the liquid to pass through.

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