FAQ
1.How to select appropriate plastic steel sheet pile specifications for different engineering scenarios (such as river channels, excavation pits, and wetlands)?
The company offers customized selection services, matching specifications to project requirements: ① For hydraulic engineering (e.g., riverbank protection, flood control embankments), we prioritize reinforced products measuring 6-8 meters in length and 10-12mm in thickness. These feature reserved ecological holes to enhance resistance against water flow impact and ecological compatibility. ② For municipal engineering (e.g., excavation shoring, underground utility tunnels), lightweight products measuring 4-6 meters in length and 8-10mm in thickness are recommended for easy disassembly and recycling, minimizing environmental disruption. ③ Environmental projects (e.g., wetland restoration, sewage treatment ponds): Eco-friendly recyclable products with bio-compatible coatings are selected to support ecological rehabilitation.
2. What is the strength and corrosion resistance of plastic steel sheet piles? Can they withstand harsh environments?
The company’s plastic steel sheet piles utilize polymer-reinforced composite materials, manufactured through a specialized extrusion process. At ambient temperatures, they achieve a flexural strength exceeding 120 MPa, with impact resistance surpassing traditional PVC materials by 30%. The surface undergoes anti-aging and anti-corrosion treatment, ensuring a service life exceeding 30 years in environments such as fresh water, seawater, and acidic/alkaline soils (traditional steel sheet piles are prone to rusting within 5-8 years in humid conditions). For northern low-temperature environments, the product maintains excellent toughness at -20°C with no cracking risk. For high-sediment impact scenarios in the Yellow River basin, customized reinforced sheet piles withstand water flow impacts of 3 meters per second and have passed third-party hydraulic engineering material testing certification.
3. How environmentally friendly are plastic steel sheet piles? Do they meet national environmental standards for engineering projects?
The product contains no harmful substances such as lead, plasticizers, or heavy metals. Raw materials are recyclable, and the production process generates zero wastewater and zero exhaust emissions. It complies with national standards including GB/T 19277.1-2011 General Rules for Evaluation of Ecological Materials and the Green Construction Evaluation Standard for Water Conservancy Projects. It has passed SGS environmental testing and obtained EU RoHS certification. In ecological restoration projects (such as Case Study 3: Taihu Wetland Project), steel sheet piles can incorporate ecological openings to support aquatic plant growth and fish migration. Post-construction environmental assessments by regulatory authorities confirm no contamination of water quality or soil, fully meeting green engineering requirements.
4. Comparison of Plastic Steel Sheet Piles with Traditional Materials
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- Comparison with Traditional Concrete Piles While traditional concrete piles demonstrate strength, their heavy weight, transportation and construction inconveniences, coupled with high costs, often deter users. In contrast, plastic steel sheet piles weigh as little as 1/40th of conventional materials at equivalent dimensions, making transportation and handling effortless. This significantly reduces the need for transport vehicles, lowers shipping costs, and minimizes environmental impacts from exhaust emissions.
- Comparison with Geogrid Gabions Geogrids degrade rapidly when exposed to prolonged sunlight and carry potential fire hazards. On the other hand, gabion baskets excel in slope protection and toe reinforcement. However, prolonged exposure to water flow may still cause localized collapse. In contrast, plastic steel sheet piles offer compact construction footprints, convenient handling and stacking, and eco-friendly properties. They not only shorten construction cycles but also reduce construction areas. This approach meets engineering safety requirements while simultaneously preserving ecological integrity and enhancing landscape aesthetics.
5.Advantages of Plastic Steel Sheet Piles for Bank Protection
- High Strength and Corrosion Resistance Plastic steel sheet piles exhibit exceptional physical properties including high strength, high modulus, and high rigidity, delivering outstanding performance in practical applications. Their robust and stable composition enables them to withstand significant pressure and impact forces. Testing confirms tensile strength up to 48 MPa and compressive strength reaching 75 MPa—far exceeding traditional revetment materials. Simultaneously, they exhibit outstanding corrosion resistance, ensuring long-term usability in marine, muddy, and corrosive environments. For instance, in channel revetment projects along coastal regions, plastic steel sheet piles withstand seawater erosion with a service life exceeding 50 years. Even in low-temperature conditions, they maintain excellent elasticity and toughness, resisting fractures or damage due to temperature fluctuations. This characteristic enables plastic steel sheet piles to provide stable revetment performance across various harsh environments.
- Convenient and Cost-Effective Installation Plastic steel sheet piles feature a simple structure and flexible installation process. Compared to traditional revetment materials, their construction is significantly simpler and faster. Due to their lightweight nature, heavy machinery is unnecessary; a standard construction machine operated by a four-person crew can complete the installation. Construction timelines are significantly shortened, with efficiency exceeding traditional methods by over fivefold. For instance, a riverbank protection project using plastic steel sheet piles was completed in just 15 days, whereas traditional methods would have required 45 days. Additionally, plastic steel sheet piles offer lower costs, with overall project expenses amounting to two-thirds or less of traditional rigid structures like masonry rubble or concrete. This saves project costs and enhances economic efficiency.
- Superior Environmental Performance Plastic steel sheet piles pose no environmental pollution, serving as a green and eco-friendly bank protection material. The product contains no harmful substances like lead or plasticizers. Authoritative testing confirms it causes absolutely no contamination to water quality or soil. Simultaneously, plastic steel sheet piles provide ecological functions, such as supporting plant growth and fish nest construction. In shoreline applications, vegetation can naturally grow through the ecological openings of high-strength plastic-steel composite sheet pile embankments or be artificially planted, adding green vitality to waterways. Furthermore, they can form natural fish nests, providing optimal habitats and spawning grounds for aquatic life like fish and shrimp, thereby promoting ecosystem balance and stability. These environmental benefits make plastic-steel sheet piles highly valuable for riverbank protection projects.