Steel-plastic composite sheet piles inherently possess excellent corrosion resistance and anti-aging properties, eliminating the need for regular anti-corrosion treatment required by steel sheet piles. They also avoid issues common to concrete sheet piles, such as cracking and leakage, or to wooden piles, such as decay and insect infestation. Professional testing confirms their stable performance under harsh conditions including UV exposure (UVB-313 test: 1000 hours without cracking), freshwater, seawater, and acidic/alkaline soils. With a service life exceeding 50 years and minimal maintenance throughout their entire lifecycle, they significantly reduce subsequent engineering operation and maintenance costs.
Compared to traditional steel sheet piles, plastic-steel sheet piles weigh only 12-18 kg per linear meter, achieving a weight reduction exceeding 60%. This lightweight advantage eliminates the need for large lifting equipment and heavy vibratory hammers during installation. Small hydraulic vibratory hammers suffice for driving operations, reducing equipment investment while substantially boosting construction efficiency—typically completing a 100-meter-long plastic steel sheet pile retaining wall in a single day under standard conditions. Additionally, their minimal excavation footprint and controllable soil displacement effects make them particularly well-suited for projects with stringent environmental impact requirements, such as urban narrow sites and old neighborhood renovations.