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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.
Welding seams of Sichuan HDPE geomembranes are critical to construction.
Release date:
2020-12-01
Sichuan Zigong HDPE Geomembrane Common welding methods:
1. Implementing anti-seepage measures Sichuan Zigong HDPE Geomembrane Lap method: Along the impermeable barrier Sichuan Zigong HDPE Geomembrane Width: 20–40 cm, laid out with overlap between two sheets for impermeability Sichuan Zigong HDPE Geomembrane This method is prone to leakage if the seams aren’t properly overlapped.
II. Adhesive Method:
1. Solvent Bonding Method: Apply a chemical solvent to the waterproofing layer. Sichuan Zigong HDPE Geomembrane The joint surface should have an adhesive width of 5 to 10 cm, creating a uniform, evenly thick adhesive layer. Use a rubber roller to firmly press the adhesive until it is fully bonded.
2. Adhesive Bonding Method: Apply chemical adhesive to the overlapping surfaces, then use a rubber roller or mallet—along with foot pressure—to firmly join the materials together. Currently, depending on the need for impermeability, Sichuan Zigong HDPE Geomembrane Its characteristics led to the development of the corresponding HDPE. Sichuan Zigong HDPE Geomembrane Dedicated adhesive, for which a patent has been applied, has been successfully used in multiple seepage-control projects with excellent results. Seepage control Sichuan Zigong HDPE Geomembrane The advantages of the special bonding method are: simple construction, shorter construction time, no need for specialized construction techniques, and self-contained waterproofing capabilities. Sichuan Zigong HDPE Geomembrane Splicing construction.
Leak-proof Sichuan Zigong HDPE Geomembrane The issues with the special adhesive method are as follows:
1. Typically, it requires manual completion; sometimes, the mating surfaces need to be properly prepared. Additionally, the bonding time of the adhesive is significantly influenced by temperature, ensuring leak-proof performance. Sichuan Zigong HDPE Geomembrane Splicing typically takes 5 to 15 minutes to complete.
2. Most chemical solvent-based bonding joints still face challenges in terms of shear strength, aging resistance, and adaptability to aquatic environments, which is why this method is typically limited to small-scale projects.
3. Leak Prevention Sichuan Zigong HDPE Geomembrane Thermowelding method: The principle involves using a welding machine to transfer heat directly to the joint area. Sichuan Zigong HDPE Geomembrane Surface it to enable dissolution. Then, use roll pressing to ensure the welded joint achieves a seamless interface within the melting zone. This method requires precise process control and has relatively high construction standards, making it particularly well-suited for long, linear joints. It is ideal for thermoplastic impermeable materials, and hot-welding techniques are especially effective for HDPE geomembranes (such as those used in Zigong, Sichuan), composite geomembranes, as well as LDPE geomembranes.
Sichuan Zigong HDPE Geomembrane After laying, use a strip of sand and soil to press down firmly, preventing it from being shifted by wind. Be sure to keep the edges and seams clean, making sure there’s no debris present.
Sichuan Zigong HDPE Geomembrane Lay the HDPE geomembrane in the optimal direction, ensuring that both sides of the material in Zigong, Sichuan, have a 10–20 cm overlap reserved for welding. During installation, carefully align the placement of the HDPE geomembrane to facilitate seamless welding along the edges.
Adjust both sides of the joint properly before welding. Sichuan Zigong HDPE Geomembrane Space them apart to ensure a consistent overlap width, keeping the surface flat and wrinkle-free.
When welding, it’s best to hire a welder with proven experience, and use a dedicated welding machine for the job. Be sure to properly adjust the temperature and speed—alternatively, adhesive bonding can also be used.
Based on years of practical experience, it has been confirmed that when the thickness of Sichuan Zigong HDPE geomembranes falls below 0.25 mm, KS adhesive must be used for bonding. Membranes that are too thin can develop pinholes and are prone to damage during construction, potentially compromising their impermeability performance. During the installation of Sichuan Zigong HDPE geomembranes, special attention should be paid to ensuring proper laying lengths—avoiding wrinkles—and securing strong, reliable seams. Construction must strictly adhere to technical specifications, with rigorous quality control at each critical stage: preparation, laying, splicing, testing, and backfilling.
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 prominently applied in critical environmental protection fields such as hydraulic infrastructure projects, transportation infrastructure initiatives, and the isolation and impermeability solutions for urban waste and hazardous industrial solid waste management. The company boasts advanced production lines sourced from Germany, Italy, Denmark, Belgium, Switzerland, and other countries, adhering to stringent quality management systems and rigorous testing standards. We are equipped with state-of-the-art testing equipment capable of evaluating key properties—including tensile strength, creep resistance, UV resistance, water permeability, flame retardancy, anti-static performance, chemical corrosion resistance, and oxidation stability—ensuring superior product quality. Furthermore, ZHONGTAI HENGBANG has successfully obtained certifications such as CRCC, ISO 9001, ISO 14001, OHSAS 18000, and MA approvals, along with favorable test reports from China’s Ministry of Railways and Ministry of Water Resources, as well as the prestigious EU CE certification. Our products have also been validated by leading industry 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 seawall construction/maintenance, hydraulic engineering, slope remediation and ecological restoration, road construction, and mining projects.
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