積水テクノ成型 List of Products and Services

We would like to introduce a case study of the plastic retention material "Crosswave," which prevents urban flooding with a high void ratio. The construction process is simple, as it only requires stacking the units in an alternating manner, making it widely used in various locations such as rainwater utilization systems, underground adjustment ponds, rainwater utilization facilities, and disaster prevention adjustment ponds. Additionally, by using "Plaroad" as temporary road material, it is possible to efficiently construct and dismantle temporary roads. 【Case Studies (Partial)】 ■ Adjustment pond for land readjustment in Ishikawa Prefecture (Storage capacity: 9,200m3) ■ Adjustment pond for the Miyagi Prefectural Office (Storage capacity: 1,700m3) ■ Adjustment pond for residential land development in Chiba Prefecture (Storage capacity: 420m3) ■ Adjustment pond for a shopping center in Aichi Prefecture (Storage capacity: 6,600m3) ■ Adjustment pond for an elementary school in Fukuoka Prefecture (Storage capacity: 800m3), etc. *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

Crosswave is easy to install as it simply intersects and stacks layer by layer. Additionally, maintenance within the storage tank is also straightforward; it mainly involves installing sedimentation basins at the inflow section and removing the settled materials from the sedimentation area, making it easy to use. It is widely utilized for urban flood control, on-site retention, rainwater reuse, rainwater storage for schools and parking lots, and as emergency water supply for disaster preparedness. Furthermore, it can be extensively used as civil engineering materials such as lightweight fill materials and temporary materials. *For more details, please refer to the PDF document or feel free to contact us.*

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

The "Cross Wave Method" is a construction technique that involves stacking products made from recycled polypropylene resin in a cross pattern and wrapping them with waterproof and permeable sheets to create underground rainwater storage tanks and infiltration layers. The "Cross Wave" used has a high void ratio and excellent seismic resistance, and its stability as a structural element is highly regarded. It offers a wide range of products that can meet various site requirements. 【Features of Cross Wave】 ■ High voids are secured by stacking at 90-degree angles ■ Construction is simply done by manual stacking, reducing construction time ■ Excellent seismic resistance ■ Designed for high load capacity, compatible with 25-ton trucks (T-25) in the vertical direction ■ Stacking in a staggered manner eliminates the need for joint materials, allowing for easy construction ■ Environmentally friendly, made from recycled polypropylene resin *For more details, please refer to the PDF document or feel free to contact us.

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

"Crosswave" is a plastic rainwater storage material that can be easily buried by hand beneath parking lots, parks, and school grounds. It allows for a high void ratio, which reduces excavation volume and shortens construction time. In addition to suppressing rainwater runoff, it can be utilized for purposes such as rainwater reuse (for domestic wastewater and industrial/agricultural water). *Currently, we are offering a "Product Catalog" that includes case studies! 【Features】 ■ No curing period required for concrete construction methods ■ Earthquake resistance level 2 ■ Supports vertical loads of 25t trucks ■ Made from environmentally friendly recycled polypropylene ■ Excellent chemical resistance and water resistance, preventing water contamination 【Additionally! We are giving away sample models of 'Crosswave'】 If you are interested, please apply through the "Contact Us" section. (Limited to 20 companies. If there are many applicants, a lottery will be held.)

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

"Cross Wave" is a plastic storage material that ensures a high void ratio by stacking it underground while intersecting, allowing for efficient rainwater collection. It is extremely lightweight, eliminating the need for heavy machinery during installation or concrete curing. It features a high load-bearing design that can support the passage of 25-ton trucks. It allows for easy construction of water storage tanks beneath parks, schools, and commercial facilities, contributing to the mitigation of urban flooding and rainwater runoff. 【Features】 ■ High load-bearing design. The allowable stress in the vertical direction is 90 kN/m². ■ Excellent chemical resistance and water resistance, and does not contaminate water. ■ Capable of flood control measures for rainwater from river flooding and sudden heavy rains. *For more details, please refer to the catalog or feel free to contact us.

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

Sekisui Chemical's "CW-S (Cross Wave Strong)" is a plastic storage material that can be used to construct rainwater retention tanks and infiltration tanks beneath parking lots, parks, and school grounds. This product is a high-strength type that can withstand strong vertical loads. The allowable stress in the vertical direction is 110 kN/m², and it can support the passage of a truck weighing 25 tons. In addition to water storage tanks, it can also be widely used as civil engineering materials such as lightweight fill materials and temporary materials. 【Features】 ■ High void ratio ■ Shortened construction period ■ High load-bearing design ■ Easy construction that creates a strong structure simply by stacking ■ Excellent chemical resistance and water resistance, does not contaminate water *For more details, please refer to the catalog or feel free to contact us.

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

"CW (Cross Wave)" is a plastic storage material for an underground water storage system that collects rainwater buried underground. This product is the basic type of Cross Wave and is suitable for deep burial depths. Additionally, the allowable vertical stress is 90 kN/m², and it can support the passage of a truck weighing 25 tons. [Features] ■ High void ratio ■ Shortened construction period ■ High load-bearing design ■ Easy construction that creates a strong structure simply by stacking ■ Excellent chemical resistance and water resistance, does not contaminate water *For more details, please refer to the catalog or feel free to contact us.

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

Sekisui Chemical's "CW-HS (Cross Wave High Strong)" is a plastic storage material that can be used to construct rainwater retention tanks and infiltration tanks under parking lots, parks, and school grounds. It maintains a high void ratio (over 95% when stacked in five layers or more) to meet diverse needs. Additionally, it has a vertical allowable stress of 90 kN/m², allowing for the passage of trucks weighing up to 25 tons. In addition to water storage tanks, it can also be widely used as civil engineering materials such as lightweight fill materials and temporary structures. 【Features】 ■ High void ratio ■ Shortened construction period ■ High load-bearing design ■ Easy construction that creates a strong structure simply by stacking ■ Excellent chemical resistance and water resistance, does not contaminate water *For more details, please refer to the catalog or feel free to contact us.

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

Sekisui Chemical's "CW-H (Cross Wave High)" is a plastic storage material that can be used to construct rainwater retention tanks and infiltration tanks underground in parking lots, parks, and school grounds. With a high void ratio (over 95% when stacked in two or more layers), it is suitable for both large-scale and small-scale facilities. The allowable vertical stress is 78.5 kN/m², allowing for the passage of trucks weighing up to 25 tons. In addition to storage tanks, it can also be widely used as civil engineering materials such as lightweight fill and temporary materials. 【Features】 ■ High void ratio ■ Shortened construction period ■ High load-bearing design ■ Easy construction that creates a strong structure simply by stacking ■ Excellent chemical resistance and water resistance, does not contaminate water *For more details, please refer to the catalog or feel free to contact us.

• Rainwater tank
• Rainwater infiltration facilities
• Other civil engineering works

Cross Wave, which stacks plastic storage materials to create underground rainwater storage facilities and rainwater infiltration facilities (rainwater storage tanks and rainwater infiltration tanks). Since its launch in 1998, it has achieved a top-class position in the industry with 7,500 installations and a total storage capacity of 1.9 million cubic meters. In particular, the staggered stacking structure offers excellent stability, allowing many users to adopt it with confidence.

• Joints between components
• Agricultural civil engineering works
• Roof and gutter construction