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About UsZHONGTAI HENGBANG Engineering Technology Co., Ltd. is located in the Academician Entrepreneurship Base of Tai'an National High-Tech Industrial Development Zone, Shandong Province. The company is a comprehensive service provider specializing in engineering consulting and design, materials R&D and manufacturing, as well as operations and maintenance. With strong technical expertise and robust R&D capabilities, its products are primarily applied in critical areas such as water conservancy infrastructure projects, transportation infrastructure initiatives, and environmental protection solutions for isolating and preventing leakage from urban waste and highly hazardous industrial solid waste.
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ProductsZHONGTAI HENGBANG Engineering Technology Co., Ltd. boasts production lines sourced from countries including Germany, Italy, Denmark, Belgium, and Switzerland, adhering to rigorous quality management systems and testing standards. We are equipped with advanced testing equipment capable of evaluating tensile strength, creep resistance, UV protection, water permeability, flame retardancy, antistatic properties, chemical corrosion resistance, and oxidation performance.
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Application CasesThe product is primarily used in hydraulic infrastructure projects, transportation infrastructure projects, and environmental protection applications—including the isolation and impermeability of municipal waste and highly hazardous industrial solid waste.
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BlogPrioritizing technological advancement and innovation, our company is committed to fulfilling user needs to the fullest extent possible.
How can we maximize the aging resistance of Yunnan EVA waterproof boards?
Release date:
2020-12-03
Measures to delay aging can be approached from two angles: First, by directly incorporating anti-aging agents into the raw materials to counteract external factors like light, oxygen, and heat—such as adding适量 of antioxidants, light stabilizers, and dark carbon black. For instance, one company introduced anti-aging additives into polypropylene, and after four years of direct exposure to sunlight, the material retained only 25% of its original strength. In contrast, without these additives, the same material would lose nearly all of its strength after just 2 to 3 months of sunlight exposure. Second, protective measures can be implemented during construction—for example, reducing the amount of time materials are exposed to sunlight or covering them with earth (with a recommended depth of at least 30 cm) or submerging them in deep water. It features excellent impermeability, high barrier properties, superior puncture resistance, no chemical contamination, and outstanding durability against acids, alkalis, and a wide range of chemicals. Additionally, it boasts exceptional elongation, wear resistance, dimensional stability, strong adhesion, and ease of installation. Commonly referred to as geomembranes or waterproofing sheets, these materials are typically categorized based on thickness: membranes thicker than or equal to 0.8 mm are called "waterproofing sheets," while those thinner than 0.8 mm are classified as "geomembranes." Made from high-molecular polymers, these versatile materials serve as effective barriers against seepage and come in two main types: homogeneous waterproofing sheets and composite waterproofing sheets.
Urban landfilling, coal ash dam management, road construction, railway projects, drainage systems, water conservancy, tunneling, seepage control for dikes, dams, and sluices, impermeable lining for reservoirs, channels for water, oil, and liquid transport, seepage barriers in solid waste disposal sites, rooftop waterproofing, moisture-proofing for building basements, underground warehouses, and parking garages, pile-membrane cofferdams, land reclamation from the sea, and port engineering projects—among others.
How to extend Measures to delay aging can be approached from two angles: First, by directly incorporating anti-aging agents into the raw materials to counteract external factors like light, oxygen, and heat—such as adding适量 of antioxidants, light stabilizers, and dark carbon black. For instance, one company introduced anti-aging additives into polypropylene, and after four years of direct exposure to sunlight, the material retained only 25% of its original strength. In contrast, without these additives, the same material would lose nearly all of its strength after just 2 to 3 months of sunlight exposure. Second, protective measures can be implemented during construction—for example, reducing the amount of time materials are exposed to sunlight or covering them with earth (with a recommended depth of at least 30 cm) or submerging them in deep water. The aging resistance of Kang is a problem we’ve been consistently working to address—not that EVA has a short lifespan, but rather our goal is to extend the usable life of Yunnan Pu'er EVA waterproof boards as much as possible under feasible conditions, thereby enhancing their cost-effectiveness.
Measures to delay aging can be approached from two angles: First, by directly incorporating anti-aging agents into the raw materials to counteract external factors like light, oxygen, and heat—such as adding适量 of antioxidants, light stabilizers, and dark carbon black. For instance, one company introduced anti-aging additives into polypropylene, and after four years of direct exposure to sunlight, the material retained only 25% of its original strength. In contrast, without these additives, the same material would lose nearly all of its strength after just 2 to 3 months of sunlight exposure. Second, protective measures can be implemented during construction—for example, reducing the amount of time materials are exposed to sunlight or covering them with earth (with a recommended depth of at least 30 cm) or submerging them in deep water. Measures to delay aging can be approached from two angles: First, by adding anti-aging agents directly into the raw materials to counteract external factors like light, oxygen, and heat—such as incorporating适量 of antioxidants, light stabilizers, and dark carbon black. For instance, one company added anti-aging additives to polypropylene, and after four years of direct exposure to sunlight, the material retained only 25% of its original strength. In contrast, without these additives, the same material would lose nearly all its strength after just 2 to 3 months of exposure to sunlight. Second, protective measures can be implemented during construction—for example, minimizing the time materials spend exposed to sunlight or covering them with earth (with a recommended depth of at least 30 cm) or submerging them in deep water.
1. During tunnel construction, waterproofing is a critically important step, and the selection of appropriate waterproofing materials is equally vital. Typically, waterproof boards are used as the primary material in tunnels—among these, Yunnan Pu'er EVA waterproof boards are the most commonly chosen. EVA-based waterproof boards offer excellent water resistance, low costs, superior puncture resistance, high tensile strength, and exceptional flexibility. Additionally, they boast remarkable self-healing capabilities and enjoy an exceptionally long service life, often lasting over 50 years under normal conditions.
2. Measures to delay aging can be approached from two angles: First, by directly incorporating anti-aging agents into the raw materials to counteract external factors like light, oxygen, and heat—such as adding适量 of antioxidants, light stabilizers, and dark carbon black. For instance, one company introduced anti-aging additives into polypropylene, and after four years of direct exposure to sunlight, the material retained only 25% of its original strength. In contrast, without these additives, the same material would lose nearly all of its strength after just 2 to 3 months of sunlight exposure. Second, protective measures can be implemented during construction—for example, reducing the amount of time materials are exposed to sunlight or covering them with earth (with a recommended depth of at least 30 cm) or submerging them in deep water. The most commonly used specification is 1.5mm thick. For instance, if the tunnel ceiling spans 20 meters in width, using a 3-meter-wide sheet would result in each roll weighing around 85 kilograms—still manageable for workers. However, if a 6-meter-wide sheet were employed instead, each roll would weigh as much as 170 kilograms, which is far too heavy for workers to handle comfortably. At that weight, it becomes nearly impossible for them to lay the waterproofing sheets properly, significantly compromising the quality of the construction work.
ZHONGTAI HENGBANG Engineering Technology Co., Ltd. is a comprehensive service provider integrating engineering consulting and design, material R&D and manufacturing, as well as operations and maintenance. With robust technical expertise and strong R&D capabilities, our products are specifically tailored for critical applications in areas such as water conservancy infrastructure projects, transportation infrastructure initiatives, and environmental protection fields like urban waste management and the safe containment of hazardous industrial solid waste. The company boasts advanced production lines sourced from Germany, Italy, Denmark, Belgium, Switzerland, and other countries, all operating under stringent quality management systems and rigorous testing standards. We are equipped with state-of-the-art equipment capable of evaluating key performance characteristics—including tensile strength, creep resistance, UV durability, permeability, flame retardancy, anti-static properties, chemical corrosion resistance, and oxidation stability—ensuring that every product meets the highest industry benchmarks. Furthermore, ZHONGTAI HENGBANG has earned prestigious certifications such as CRCC, ISO 9001, ISO 14001, OHSAS 18000, and MA certification, along with favorable test reports from China’s Ministry of Railways and Ministry of Water Resources, the EU CE certification, and additional approvals from specialized laboratories in Russia, Australia, the United States, and other regions. We are dedicated to delivering top-quality geosynthetic materials and unparalleled services for a wide range of projects, including reinforced earth retaining walls, soft ground stabilization, land reclamation and embankment construction & maintenance, hydraulic engineering, slope remediation and ecological restoration, road construction, and mining projects.
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ZHONGTAI HENGBANG Technology Co., Ltd.
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