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Help CenterManufacturer of Composite Drainage Boards. High-density Polyethylene Waterproof and Drainage Protection Boards. Engineering Applications of Siphon Drainage Boards
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In long - term building waterproofing projects, the industry often faces pain points such as low drainage efficiency and high leakage risks. Especially in scenarios like planted roofs and basements, traditional drainage methods are prone to cause structural corrosion and leakage hazards due to water accumulation. Jiamei New Materials Co., Ltd. has been deeply involved in the drainage system field for more than a decade. Relying on a 32,000 - square - meter production base in Tai'an High - tech Development Park, it has innovatively developed the "Blockchain" intelligent drainage and collection system. Through the high - density polyethylene waterproof and drainage protection board, it realizes organized siphon drainage with zero slope on planted roofs, completely solving the collaborative problem of drainage and waterproofing.
Product working mechanism:
- Three - layer composite structure design: the upper layer is a polymer protective and drainage profiled sheet, the middle layer is a self - adhesive geotextile filter layer, and the bottom layer is an HDPE support grid
- Utilize the siphon effect to achieve active drainage. When the water level exceeds the critical height, the system automatically forms a vacuum negative pressure to quickly conduct water
- The drainage trough is linked with the water storage module to realize rainwater collection and reuse
| Parameter item | Technical indicator | Testing standard |
| Material density | ≥0.95g/cm³ | GB/T 1033.1 |
| Compressive strength | ≥250kPa | GB/T 1041 |
| Water conductivity | ≥0.003cm²/s | JTGE50 |
| Operating temperature | -40℃~80℃ | GB/T 1033.2 |
Engineering application advantages:
- Zero - slope construction: Break through the traditional drainage slope limitation and save more than 15% of the building height
- Three - dimensional drainage network: Arrange 36 drainage channels per square meter, increasing the drainage efficiency by 40%
- Root penetration resistance: The 2mm-thick protective layer passed the 28-day root penetration test (EN13948)
- Chemical stability: Resistant to acids and alkalis, with a pH adaptation range of 3 - 11 and a service life of up to 30 years
As an enterprise with the second - level construction qualification for waterproofing, anti - corrosion, and thermal insulation, Jiamei New Materials Co., Ltd. has 25 automated production lines, with an annual output of 50 million square meters of drainage materials. The company has obtained 4 invention patents and 22 utility model patents and has passed the AAA - level enterprise credit certification. It is recommended that project parties give priority to suppliers with a complete qualification chain when selecting a drainage system. Free sample testing and project drainage scheme design services are available. Please consult professional engineers for specific technical parameter selection.
FAQ：
Q: What is the essential difference between siphon drainage and traditional gravity drainage?
A: Traditional drainage relies on slope and gravity for diversion, while the siphon system uses the negative pressure suction effect generated by full - pipe flow and can achieve reverse - slope drainage. Experimental data shows that under the same pipe diameter, the flow velocity of the siphon system can reach more than 3 times that of gravity drainage, which is especially suitable for zero - slope planted roofs.
Q: How to verify the weather resistance of the drainage board?
A: It is recommended to conduct an artificial accelerated aging test according to the GB/T16422.2 standard. After 1000 hours of ultraviolet aging, the tensile strength retention rate of our company's products is ≥85%. At the same time, test reports on acid - alkali resistance and freeze - thaw resistance (50 cycles at - 40℃) issued by a third - party testing institution are provided.
Q: What if the bonding strength of the self - adhesive geotextile is insufficient?
A: Our company's patented sticky adhesive can provide a peel strength of ≥0.15MPa (GB/T2790). During construction, the moisture content of the base surface should be ≤8%, and the ambient temperature should be 5 - 35℃. For special base surfaces, an interface treatment agent can be provided to enhance the bonding.
Q: What is the load - bearing capacity of the water storage module?
A: The compressive strength of the standard water storage module is ≥25kN/m² (GB/T1041), and the load can be dispersed through module combination design. It is recommended that when used on the top plate of an underground garage, the thickness of the overburden soil should not exceed 1.5 meters, and a load calculation should be carried out in cooperation with a structural engineer.
Q: How to solve the blockage problem of the drainage system?
A: A five - level protection system is adopted: 1. 80g/m² non - woven fabric filter layer; 2. 5cm - thick graded gravel buffer layer; 3. Sedimentation observation well (with a dredging port); 4. Self - cleaning design of the drainage channel (flow velocity ≥0.3m/s); 5. Ventilation observation tube to balance air pressure. The maintenance cycle is recommended to be once every 2 years.
Q: Can you provide system waterproofing guarantee?
A: Jiamei New Materials Co., Ltd. holds the construction qualification for waterproofing, anti - corrosion, and thermal insulation. The drainage system and waterproof layer adopt the "combination of rigidity and flexibility" scheme: drainage board for water guiding + 1.5mm thick polymer self - adhesive film waterproofing membrane (GB23457), providing double protection. The leakage rate of the projects we have served is controlled below 0.3%.
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