Geotextiles have a filtering effect and are mainly used to control pollution. For example, at the construction site, countless amounts of soil and dust are stirred up during the work process. When it rains or when drainage is carried out here, soil can enter the canal and block it. Geotextiles can be installed near the construction site to prevent soil erosion. When geotextile is used for reservoir and tunnel management, filtering function can also be utilized. Another function is reinforcement, such as embankment or revetment engineering, where soil and rocks may slide during work or during adverse weather conditions. We can use filament geotextile to protect embankments and slopes. It can fix the slope together with the roots of plants, providing stable protection.
The geotextile must meet the strength requirements, and the gaps in the geotextile should be able to ensure asphalt immersion. The melting point of the filament geotextile must be higher than the paving temperature of hot asphalt. Taking the commonly used AH-90 petroleum asphalt as an example, the normal paving temperature is 110~165 °, the melting point of polyethylene is 125~165 °, polypropylene is 165~173 °, and polyester is 220~230 °. Because the material of the filament geotextile is polyester, it meets the required temperature. As the thickness increases, the reflective crack effect of the long filament geotextile is enhanced. Even with a thinner asphalt overlay thickness, long filament geotextile can effectively reflect cracks. Long filament geotextile has a good effect on cracks smaller than 3mm. The specific measure is to overlap the fabric strips with hot asphalt on both sides of the cracks, and fill cracks larger than 6mm in advance.
The excellent indicators of geotextile have long been an extraordinary life for him, and he chose to be worry free, reassuring, and comfortable.