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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.
Key Points for Winter Construction of EVA Waterproof Membranes in Guizhou
Release date:
2020-12-24
Guizhou Zunyi EVA Waterproof Board It is widely used in waterproofing for newly constructed railways, highways, municipal roads, and light rail transit projects (including bridge decks and tunnels), as well as in roofing, underground engineering, and environmental protection projects such as seepage control and corrosion-resistant linings in water conservancy construction, wastewater treatment facilities, landfill projects, and chemical acid-alkali treatment ponds. In winter, Guizhou Zunyi EVA Waterproof Board How can we carry out the construction to achieve better results?
The construction process for areas such as flat surfaces, vertical surfaces, and tunnel arches involves the use of the pre-laid reverse-adhesion method:
1. Surface Leveling: Clean the substrate → Apply layout lines to the substrate → Lay down pre-applied reverse-adhesive rolls → Perform lapping and overlapping → Treat key areas → Remove the release liner from the roll material → Install and tie reinforcing steel → Pour concrete;
2. Vertical Surface: Install facade supports (shims) → Snap chalk lines → Lay pre-laid, reverse-adhered membrane sheets → Mechanically fix the waterproof membrane (welded or secured with small nails) → Perform overlap treatment → Address key junctions → Remove protective release liner from the membrane → Apply specialized adhesive to seal nail heads → Tie reinforcing steel bars → Pour concrete; Guizhou Zunyi EVA Waterproof Board Construction instructions.
Tunnel arch: Tunnel arch → Marking lines → Installing supports (shims or anchor nails) → Laying the pre-applied reverse-adhesive membrane → Mechanically fixing the waterproof membrane (welding or tying) → Overlap treatment → Joint detailing → Removing the protective film from the waterproof membrane → Placing and tying reinforcing steel bars → Pouring concrete.
Guizhou Zunyi EVA Waterproof Board Construction precautions:
1. The ambient temperature during roll material application must be above -4°C. Otherwise, the overlaps will not adhere properly, leading to waterproofing failure.
The roll material can be directly applied to "partially cured concrete" or a damp substrate free of standing water, provided the surface is smooth, stable, and free of significant puddles.
The long sides of the roll material should be overlapped using self-adhesive edges, with an overlap width of 70 mm; the short sides should be joined with an 80-mm-wide adhesive tape, and the overlapping areas at the ends of the rolls must be staggered.
During facade construction, mechanical fastening should be applied every 400–600 mm along the self-adhesive edge, within 10–20 mm of the membrane’s edge, ensuring that each fastening point is fully covered by the membrane. Guizhou Zunyi EVA Waterproof Board Installation instructions.
Reinforcing steel bars are placed directly on top of the rolled material without requiring any additional protection, but care must be taken to avoid damaging the waterproof layer. Concrete must be poured and compacted within 40 days after the roll material has been installed. All operators must undergo proper training before being allowed to work on site. Personnel wearing shoes with nails are strictly prohibited from entering the roll material construction area. During construction, ensure careful site protection to prevent materials from being blown away by wind. Smoking is also strictly forbidden at the construction site.
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, our enterprise 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, the United States, and other relevant regions. We are dedicated to delivering top-quality geosynthetic materials and comprehensive services tailored to a wide range of projects, including reinforced soil retaining walls, soft ground stabilization, land reclamation and dike construction/maintenance, hydraulic engineering, slope remediation and landscaping, road construction, and mining projects.
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ZHONGTAI HENGBANG Technology Co., Ltd.
Address: East Section of Zhongtianmen Avenue, Tai'an High-tech Zone, Shandong Province
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