Geotextile ?? characteristics and mechanism of action

Geotextile has the following characteristics: a high temperature. Its melting point is generally not less than 170 ℃, better able to reach more than 200 ℃, to prevent shrinkage at high temperatures during asphalt paving, geotextile itself guarantee stable performance. 2 high tensile strength. Its ultimate tensile strength of greater than or equal 8KN / m2, elongation at break of not less than 50%. 3 good uniformity. Geotextile anisotropic material, in order to ensure uniform strength, the strength of the nonwoven geotextile aspect ratio of two to generally require no more than 1.2. 4 adsorption, permeability. Geotextile requires a uniform surface, it can absorb even penetrate asphalt and saturated, making full adhesion to the road surface. As geotextile geomembrane layer of protection, so that impermeable layer of protection from damage. To reduce ultraviolet radiation to increase the anti-aging properties, preferably laying buried in France. Construction, the first to use a smaller diameter material leveling sand or clay base surface, and then laying the geomembrane. Geomembrane not stretched too tightly, buried in the soil at both ends of the body portion is corrugated, and finally in the shop geomembrane layer of about 10cm over layer of fine sand or clay. Lined with 20-30cm stone (or precast concrete blocks) for the anti-scour protection layer. Construction, should try to avoid the stones hit directly on the geomembrane, preferably side to side laying protective layer construction. Geomembrane connection with the surrounding structures should be used to the pressure of the expansion anchor bolts and steel connecting parts to brushing emulsified asphalt (thickness 2mm) adhesive to prevent leakage there. Geotextile main mechanism is as follows: 1 geotextile reduces the binding force of the overlay and the old concrete pavement layers. Studies have shown that, with the interlayer, the original story at the interface bonding force is significantly reduced, thereby overlay maximum tensile strain decreases. Although the interface strength decreased, but still sufficient to prevent relative displacement interface while maintaining a continuous up and down. 2 Since the geotextile has a high strength and a large elongation, can play a role in stress absorbing interlayer. Geotextile layer between the reflective cracks in stress by the vertical direction into a horizontal direction, and extended to a wider range of stress to relieve the stress concentration at the crack then played a dissipation level of strain and transfer vertical load role and reinforced pitch overall tensile strength of concrete, delaying reflection cracks. Shandong Xinyu Geotechnical Materials Engineering Service Co., Ltd. is a professional production and operation of geosynthetics series of high-tech enterprises, to ensure quality and timely delivery, while attaches great importance to service work, a sound service system and professional and technical personnel. Perennial key projects across the country to provide construction, laying of geotextile material, welding construction, technical guidance services. Tel: 15865930678 Manager Zhao quality of survival, to the credibility of development. Integrity of the world!