Durability and aging study of woven geotextile
Publish Time: 2025-02-13
As an important geosynthetic material, woven geotextile plays an irreplaceable role in engineering fields such as water conservancy, transportation, and construction. However, long-term exposure to the natural environment will cause woven geotextile to be eroded by various external factors, resulting in a gradual decline in its performance, a process known as aging. Durability and aging research is of great significance to ensure the long-term stability and safety of woven geotextile in engineering.The durability of woven geotextile mainly refers to its ability to resist erosion by external factors, including resistance to ultraviolet radiation, temperature changes, chemical and biological erosion, hydrolysis, freeze-thaw changes, and mechanical wear. These external factors work together to gradually weaken the physical and chemical properties of geotextiles until they lose their original functions and effects.Ultraviolet radiation is one of the most important factors affecting the aging of woven geotextiles. When geotextiles are exposed to sunlight for a long time, their polymer chains will undergo degradation reactions, resulting in a decrease in strength and an increase in brittleness. Temperature changes will also accelerate the aging process of geotextiles, especially under extreme climatic conditions, where the alternating effects of high and low temperatures will aggravate the performance degradation of the material.In addition, chemical and biological erosion are also factors that cannot be ignored. Acids and alkalis in the soil, microorganisms, and root growth can damage geotextiles. Hydrolysis can cause chemical bonds in geotextile materials to break, thereby reducing their overall performance. Freeze-thaw changes can cause stress inside the material, leading to cracks and breakage.In order to evaluate the durability of woven geotextiles, researchers usually conduct a series of aging tests. These tests include artificial accelerated aging tests, atmospheric exposure aging tests, and actual application aging tests. By simulating various factors in the natural environment, researchers can evaluate the performance changes of geotextiles under different conditions, thereby providing a scientific basis for their application in engineering.Improving the durability of woven geotextiles requires starting from multiple aspects such as material selection, structural design, and construction technology. Selecting fiber materials with excellent aging resistance, optimizing the structural design of geotextiles, and adopting reasonable construction technology can effectively extend the service life of geotextiles.In summary, the durability and aging research of woven geotextiles is crucial to ensure its long-term stability and safety in engineering. By deeply studying the aging mechanism and influencing factors of geotextiles, we can provide better protection measures for them, thereby extending their service life and providing more reliable material guarantees for engineering construction.
