Concrete Sheet Pile With Composite Reinforcement

The patent replaces traditional metal reinforcement with composite materials consisting of polymer matrices (such as vinyl ester resin) reinforced with glass fibres. This composite reinforcement maintains the necessary mechanical strength while providing superior resistance to chemical and physical degradation in wet and salty environments, eliminating the corrosion problems associated with metal reinforcement.

The patent employs an interlocking connection system where terminal elements at the ends of sheet piles feature nested geometric shapes (such as trapezoidal profiles) that fit together. This nesting arrangement ensures stable mechanical connection while maintaining water tightness, as the interlocking geometry prevents separation and eliminates gaps between adjacent piles.

The patent utilizes vinyl ester resin as the polymer matrix, which has specific chemical parameters that enable efficient processing. The resin's viscosity, curing characteristics, and glass fibre compatibility are optimized to allow standard manufacturing processes, thereby reducing production complexity despite using advanced composite materials.

The patent combines high-strength concrete (classes C70/85 or C80/95) with composite reinforcement made of vinyl ester resin and glass fibres. This combination creates a synergistic effect where the concrete provides compressive strength while the composite reinforcement provides tensile strength and corrosion resistance, together achieving both mechanical resistance and durability in aggressive environments.