[Example] Waterproof zipper AQUASEAL(R): Sheet for underwater construction

The new method using waterproof zippers has resulted in a reduction of approximately 20% in construction costs and time.

◆Background of Adoption for Underwater Construction Sheets The number of 'divers' performing work during underwater construction has been decreasing year by year. Additionally, the conditions at construction sites (such as underwater visibility, current speed, water temperature, etc.) impact the efficiency in terms of construction period, cost, and safety. There are challenges such as the removal of debris that occurs after the materials used underwater are removed, difficult tasks like deformation repairs, and high maintenance costs even when materials are reused. ◆Key Points for Problem Solving Traditionally, the assembly method of liner plates for temporary closure by divers was common, but the new method covers the outside of pre-assembled plates with a waterproof sheet utilizing the waterproof fastener AQUASEAL(R). This allows for segmented construction, significantly reducing the underwater work performed by divers. The reduction in underwater construction processes, improved economic efficiency through the reuse of plates, and enhanced safety by reducing the risk of decompression sickness have led to approximately a 20% reduction in construction costs and project duration.

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