坂井商会 List of Products and Services

We would like to introduce our special product, the "On-site Cast Manhole." Traditionally, on-site cast concrete manholes have been manufactured at various locations; however, on-site casting tends to encounter many issues due to diverse conditions, making it very difficult to carry out quick and easy construction in confined spaces. By producing these on-site cast concrete manholes in a factory, we have solved these problems and achieved simple and rapid installation. 【Features】 ■ Can be customized in depth and shape to suit various sites ■ Pipe installation positions can be set freely ■ Steps can be added for easier access ■ Quick installation is possible as it only requires hanging on-site and placing the slab *For more details, please refer to the PDF document or feel free to contact us.

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• Temporary Construction Materials

We would like to introduce our "Improved Manhole". In conventional manholes, adjusting the height was difficult, requiring the installation of additional manholes. This made the process cumbersome and did not look aesthetically pleasing. Our product addresses these weaknesses. It is manufactured in our factory. We offer a variety of specifications, so please consult with us first. 【Features】 ■ Free height adjustment ■ Shortened construction period ■ Durable and strong ■ Cost-effective ■ Male and female joints prevent misalignment *For more details, please refer to the PDF document or feel free to contact us.

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• Temporary Construction Materials

"Super Ganko Masa" is a high-performance soil paving material that is easy to install, has high strength, and is environmentally friendly. It is an improved version of the conventional "Ganko Masa," significantly enhancing durability against strength, friction, and freezing. This soil paving material boasts excellent workability and strength through unique ideas and new technologies. Please feel free to contact us if you have any inquiries. 【Features】 ■ Compressive strength: 20 N/mm² or more ■ Flexural strength: 3.4 N/mm² or more *For more details, please download the PDF or feel free to contact us.

• Exterior and paving materials <General>

"Gankomasu" is a natural soil weed control material that is easy, safe, convenient, and environmentally friendly. Since its launch in 1998, it has been a pioneer in the soil paving material industry, with shipments totaling 3.56 million bags and maintaining over 17 years of weed control effectiveness, providing a peaceful and comfortable living environment. 【Construction Standards】 ■Standard construction thickness: 30mm ■Usage quantity: 2.0 bags/m2 (50.0kg/m2) *For more details, please download the PDF or feel free to contact us.

• Landscaping materials

"Celldum" is a geotextile made by joining high-density polyethylene sheets with high frequency. When deployed, it forms a three-dimensional honeycomb structure. The soil and crushed stone filled inside the cells are restrained, providing reinforcement effects, making it effective for various applications such as cut slope retaining walls and slope protection. 【Features】 ■ Fewer components and no special work required, leading to shortened construction time ■ Can create a landscape that harmonizes with nature through vegetation ■ On-site generated soil can be used as infill material ■ Quick response is possible even in disaster recovery ■ Lower cost compared to block masonry (retaining wall type) *For more details, please download the PDF or feel free to contact us.

• Renovation and repair methods