The sand-filled pipeline is constructed with two main layers: an inner lining and a reinforcement layer. The inner lining consists of a surface-resistant felt, alkali-free jet yarn, and Jinling DSM food-grade unsaturated polyester resin. The resin makes up 80% of the composition, while the glass fiber accounts for 20%, and the total thickness is approximately 2.5 mm. This layer ensures durability and resistance to external damage. The reinforcement layer is wound in a spiral and circumferential pattern using computer-controlled technology. It includes alkali-free yarn, quartz sand, and phthalic resin, with quartz sand making up 20% and the remaining 80% composed of glass fiber and resin. The thickness and winding angle are determined based on specific application requirements and programmed into the system for precise manufacturing.
One of the key advantages of sand-filled pipelines is their excellent resistance to chemical corrosion and oxidation, far surpassing that of metal materials. As a result, FRP (Fiberglass Reinforced Plastic) sand pipes can be used for extended periods in acidic, alkaline, and corrosive soil environments. The inner surface is smooth, non-moldy, and free from scale buildup, ensuring high water quality and preventing secondary pollution of drinking water. These pipes have been widely used abroad for over 50 years, and some well pipes and water filter pipes made in China during the mid-1960s are still fully functional today. Additionally, FRP pipes offer superior thermal insulation properties, with a thermal conductivity only one-tenth that of steel, eliminating the need for additional insulation. Even in cold northern winters, these pipes remain frost-resistant and crack-free, reducing the risk of failures and improving operational reliability. Their strong resistance to corrosion and waterproofing capabilities make them ideal for various applications.
When selecting aging-resistant materials for different types of waterproofing systems, it's important to consider the specific needs of the project. Aging-resistant asphalt-based waterproofing materials are often preferred due to their long-term performance. However, the choice of roofing waterproofing materials should also take into account factors such as the required lifespan of the waterproof layer, cost-effectiveness, and construction standards. The appropriate grade and thickness of the material must be selected to ensure both reliability and economic efficiency. Whether using a single layer or a composite system, the goal is to achieve optimal waterproofing performance. Additionally, new waterproof materials are now being developed with added colorants, offering aesthetic options for roof surfaces. In such cases, the color of the waterproofing material should be considered to match the overall design and functionality of the building.
"Puzzle 3D Eraser Bulk,Puzzle 3D Eraser,Building Blocks Eraser,Toppers Cute Erasers "
Yiwu Shengshang Stationery Co., Ltd. , https://www.ss-stationery.com