How to identify the quality of Shandong staple geotextile
Author: Hengke Source: Shandong HuaSu Engineering Materials Co., Ltd Time: 09:08, March 19, 2020 Visits: second
Description: how to identify the quality of staple geotextile is the most concerned problem of consumers. The geotextile with opposite quality and standard, white color and no material point, is a good geotextile. On the contrary, the color and needling density are also better geotextiles. However, superstitious quality differentiation method is laboratory test, which can detect the purpose of breaking strength, elongation and CBR bursting strength.
How to identify the quality of Shandong staple geotextile ：
How to identify Staple Geotextile The quality is good or bad. On this issue, generally speaking, before detection, it can also be distinguished by vision. On the contrary, the geotextile with opposite quality and specification, with white color and no material point, is a better geotextile. On the contrary, the color and needling density are also better geotextiles. However, superstitious quality differentiation method is laboratory test, which can detect the purpose of breaking strength, elongation and CBR bursting strength. From the inspection data of the quality inspection report, compared with the technical parameters of the national quality specification, we can distinguish the quality of the staple geotextile and whether it can meet the requirements of civil engineering.
Shandong staple fiber geotextile is polyester filament needle punched non-woven geotextile, without chemical additives and heat treatment, which is an environmental protection construction material. It can replace the traditional engineering data and construction methods, make the construction safer, help to maintain the environment, and can deal with the fundamental effect of the project establishment more economically, effectively and durable. Short wire geotextile has good mechanical function, good water permeability, corrosion resistance, anti-aging, isolation, filtration, drainage, maintenance, shaking, reinforcement and other functions.
Shandong staple geotextile has the following characteristics:
1. Good uniformity. Geotextile is an anisotropic material. In order to ensure uniform strength, the strength ratio of the vertical and horizontal directions of the non-woven geotextile should not be greater than 1.2.
2. High temperature resistance. The melting point should not be lower than 170 ℃ and can reach 200 ℃ better, so as to prevent shrinkage deformation under high temperature during asphalt paving and ensure the stability of geotextile performance.
3. High tensile strength. The ultimate tensile strength should be greater than or equal to 8kN / m2, and the elongation at break should not be less than 50%.
4. The surface of geotextile is required to be uniform, which can absorb and penetrate asphalt evenly and reach saturation, so that it can fully bond with the pavement. As the protective layer of geomembrane, geotextile can protect the impervious layer from damage. In order to reduce the ultraviolet radiation and increase the anti-aging performance, it is better to use the embedded method. In construction, the sand or clay with small diameter should be used to level the base surface, and then the geomembrane should be laid. At the end of the layer, the soil layer should not be too tight, and the soil layer should not be too tight. A 20-30cm block stone (or precast concrete block) is laid as the anti scour protective layer. The best way to avoid the construction is to lay the geomembrane directly on the construction side. The connection between the composite geomembrane and the surrounding structures shall be anchored by expansion bolts and steel plate strips, and the connection part shall be coated with emulsified asphalt (2mm thick) for bonding to prevent leakage.
Shandong staple geotextile has excellent filtration, drainage, isolation, reinforcement, protection, and has the characteristics of light weight, high tensile strength, good permeability, high temperature resistance, freezing resistance, aging resistance and corrosion resistance. Its main use is seepage control, which is suitable for railway, expressway, tunnel, subway, airport and other projects.
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