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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.
What are the common methods for anchoring HDPE geomembranes in Guizhou? And how is the finished product inspected and repaired?
Release date:
2020-10-09
1. Guizhou Tongren HDPE Geomembrane for Impermeable Linings Anchor fastening
1. There are many methods of anchoring: including groove anchoring, nail-driven anchoring, expansion bolt anchoring, and fixing with pre-embedded components, among others. Wastewater tanks typically use either pre-embedded components or expansion pressure strips for securement.
2. The width of the pressure strip must be at least 2 cm, and its thickness should not be less than 2 mm. The spacing between expansion bolts should not exceed 600 mm, and exposed areas of the pressure strip must be treated with anti-corrosion measures.
3. The bolt diameter shall be no less than 4 mm, and the spacing between bolts should not exceed 0.5 mm. During construction, first use the prepared sandbags to temporarily secure the positioned membrane, preventing strong winds from shifting or displacing the HDPE membrane, before proceeding with the expansion bolt anchoring process.
4. If the embedded components have already been installed in the pool, simply use an extrusion welding machine to weld the membrane onto the HDPE embedded parts.
2. Guizhou Tongren HDPE Geomembrane for Impermeable Linings Construction Safety Precautions
1. During use, keep the power cords of the heat gun, grinding wheel, and welding machine as far away as possible from their working areas to prevent damage to the wires and avoid electric leakage.
2. Except for hot-air welding, the nozzle of the heat gun must never come into contact with the HDPE film under any circumstances, and should be kept as far away as possible from the film, human bodies, machinery, and other objects.
3. When not in use, the welding machine must not be placed directly on the HDPE membrane surface; instead, it should be positioned on a stand or secured with sandbags.
4. After using the film cutter, the blade should be immediately returned to the blade holder.
5. All kinds of temporary, small tools used on-site should be promptly returned to the toolbox after use.
6. It is strictly prohibited to directly discard solder materials removed from the extrusion welding gun tip onto the geomembrane surface.
7. Guizhou Tongren HDPE Geomembrane for Impermeable Linings No smoking is allowed at the construction site. Visitors must refrain from wearing shoes with metal nails or high-heeled, hard-soled footwear on the membrane surface. Additionally, any activities that could potentially damage the finished geomembrane are strictly prohibited.
3. Guizhou Tongren HDPE Geomembrane for Impermeable Linings Finished Product Inspection and Repair
1. The inspection is carried out in three steps: visual inspection, inflation test, and destructive testing.
2. Visual inspection primarily involves a thorough examination of the laid geomembrane’s appearance, weld quality, T-joint integrity, and any debris on the substrate. All construction personnel should integrate this task into every stage of the entire construction process.
3. In addition to visual inspection, vacuum testing and pressure testing can also be used if necessary. For the inflation pressure test, the inflation pressure should be set at 0.25 MPa, with no air leakage detected over a 5-minute period. Considering that the roll material is relatively soft and prone to deformation, a 20% allowable pressure drop is permitted.
4. During the tensile test (failure test), the standard is that, in peel and shear tests, the weld seam should not tear—only the base material should fail by being pulled apart. If this condition is met, the weld is considered合格 (qualified).
5. During visual inspection, if defects such as pinholes are found on the membrane surface—or in cases of incomplete welding, false soldering, or damage occurring during the welding process—immediate repairs using fresh base material are required. Each repair patch should extend 10–20 cm beyond the damaged area on all sides.
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. The company boasts strong technical expertise and robust R&D capabilities, with its products primarily applied in 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. Equipped with cutting-edge production lines sourced from Germany, Italy, Denmark, Belgium, Switzerland, and other countries, ZHONGTAI adheres to stringent quality management systems and testing standards. Its state-of-the-art equipment ensures rigorous evaluations of key properties, including tensile strength, creep resistance, UV protection, water permeability, flame retardancy, antistatic performance, chemical corrosion resistance, and oxidation stability. The company has successfully obtained certifications such as CRCC, ISO 9001, ISO 14001, OHSAS 18000, and MA certificates, along with inspection reports from China’s Ministry of Railways and Ministry of Water Resources, the EU CE certification, and approvals from specialized laboratories in Russia, Australia, and the United States. ZHONGTAI is dedicated to delivering top-quality geosynthetic materials and unparalleled services for projects spanning areas like reinforced earth retaining walls, soft ground stabilization, land reclamation and embankment construction & maintenance, hydraulic engineering, slope remediation and landscaping, road construction, and mining projects.
Consultation Phone: 13953856388
Contact: Mr. Zhang
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