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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.
Guidelines for the Laying and Welding Techniques of Jiangxi HDPE Geomembranes (Anti-seepage Membranes)
Release date:
2020-12-30
The overlapping section should not contain debris such as mud or sand; if any杂物 are present, they must be thoroughly cleaned before welding. Jiangxi Ganzhou HDPE Geomembrane The laying
1. Laying out Jiangxi Ganzhou HDPE Geomembrane Previously, the corresponding qualified acceptance documents for civil engineering works should have been provided.
2. Before cutting the HDPE film, accurately measure its dimensions and then proceed with cutting according to the actual measurements. It’s generally not advisable to cut based on the dimensions shown in the diagram; instead, each piece should be numbered individually and recorded in detail on a dedicated form.
3. Laying out Jiangxi Ganzhou HDPE Geomembrane Efforts should be made to minimize welds, and while ensuring quality, prioritize the efficient use of raw materials. This approach also makes it easier to maintain high-quality standards.
4. The overlap width between membrane joints should generally be no less than 10 cm, and weld seams are typically arranged parallel to the steepest slope—meaning they run along the direction of the incline.
5. At corners and irregular sections, seam lengths should be minimized whenever possible. Unless otherwise specified, weld seams should generally be avoided within 1.5 meters of the top slope or areas of stress concentration on slopes steeper than 1:6.
6. Jiangxi Ganzhou HDPE Geomembrane During installation, avoid creating artificial wrinkles; when temperatures are low, make sure to stretch and smooth the material as tightly as possible.
7. Jiangxi Ganzhou HDPE Geomembrane After installation is complete, minimize walking on the membrane surface or moving tools across it. Any objects that could potentially damage the HDPE membrane should never be placed directly on the membrane or carried while walking on it, as this could lead to accidental harm.
2. Jiangxi Ganzhou HDPE Geomembrane Welding of
1. The hot wedge welding process consists of the following steps: adjusting pressure — setting the temperature — configuring the speed — inspecting the weld overlap — loading the film into the machine, then starting the motor and applying pressure for welding.
2. There should be no oil stains or dust at the seams, Jiangxi Ganzhou HDPE Geomembrane The overlapping section should not contain debris such as mud or sand; if any杂物 are present, they must be thoroughly cleaned before welding.
3. Each day at the start of welding, operators must first conduct a trial weld on-site using a 0.9mm × 0.3mm sample, ensuring an overlap width of at least 10 cm. The sample should then be subjected to peel and shear tests directly on-site using a tensile testing machine. Only after the sample passes these tests can the welding process begin, using the speed, pressure, and temperature settings that were just adjusted. Be sure to clearly mark the sample with the date, time, and ambient temperature. During the hot wedge welding process, operators must continuously monitor the machine’s performance and make fine adjustments to both speed and temperature as needed, based on real-time site conditions.
4. Jiangxi Ganzhou HDPE Geomembrane Welds must be neat and aesthetically pleasing, with no instances of undercutting or wandering.
5. When encountering Jiangxi Ganzhou HDPE Geomembrane When the length is insufficient, longitudinal splicing is required. First, weld the transverse seams completely, then proceed to weld the longitudinal seams. Transverse welds that are more than 50 cm apart should be arranged in a T-shape—crossing each other in a cross pattern is strictly prohibited.
6. Adjacent Jiangxi Ganzhou HDPE Geomembrane Weld seams should be staggered and overlapped as much as possible, and the joints formed between membrane sections should ideally be T-shaped, minimizing cross-shaped connections. At the intersection points of longitudinal and transverse welds, use a compression welding machine for reinforcement.
7. Do not press out any permanent creases when welding the film; ensure proper laying. Jiangxi Ganzhou HDPE Geomembrane At that time, based on the local temperature fluctuations and Jiangxi Ganzhou HDPE Geomembrane Performance requirements include accounting for expansion and contraction caused by temperature changes.
8. When the temperature indicator on the handheld welding machine shows a temperature below 200°C, use a clean cloth or cotton yarn to gently wipe off any residue before welding. If necessary, re-grind the surface—but never wipe it directly with your hands.
9. When Jiangxi Ganzhou HDPE Geomembrane When condensation, moisture, dirt, or sand is present at the joint, address these issues before proceeding with welding.
10. Welding should not be performed during rain or when joints are exposed to moisture, dew, or heavy sand—unless protective measures are in place.
11. When the temperature drops below 5°C, construction should not proceed according to code requirements. However, if work must be carried out, the welding machine should be preheated before welding begins.
12. During the welding process, the slider on the gun head of the squeeze welding machine should be checked regularly. If wear becomes severe, the slider should be replaced promptly to prevent damage to the film surface.
13. Jiangxi Ganzhou HDPE Geomembrane When welding, a generator with stable voltage performance should be used for power supply. In special cases where local electricity is utilized, a voltage stabilizer must be employed.
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 anti-seepage solutions for urban waste and hazardous industrial solid waste. 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, antistatic performance, chemical corrosion resistance, and oxidation stability—ensuring superior product quality. Furthermore, ZHONGTAI HENGBANG has earned prestigious certifications such as CRCC, ISO 9001, ISO 14001, OHSAS 18000, and MA approvals, along with positive test reports from China’s Ministry of Railways and Ministry of Water Resources, the EU CE certification, and additional industry-specific laboratory assessments conducted 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 soil retaining walls, soft ground stabilization, land reclamation and dike construction/maintenance, hydraulic engineering, slope remediation and ecological restoration, road construction, and mining projects.
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