ASAHI KASEI ADVANCE CORPORATION List of Products and Services

"Possible" is a civil engineering stabilization sheet made of polyester long fiber non-woven fabric (spunbond). Possible has excellent mechanical strength, weather resistance, and chemical resistance, as well as meeting the conditions of geotextiles such as permeability and filter performance. Possible uses polyester fibers and is produced through the spunbond method, resulting in a continuous laminated structure that excels in tensile strength and other properties. Possible AK300 has obtained construction technology evaluation No. 93202. 【Features】 ○ Mechanical strength ○ Weather resistance and chemical resistance ○ Permeability and filter performance ○ Workability For more details, please contact us.

"Public Mesh" is a fiber-based net woven from high-strength synthetic fibers and treated with a special resin coating. It has excellent strength and durability, making it suitable for soft ground surface treatment and reinforcement of embankments. A restraining layer is formed between the soft ground and the embankment through the mesh, providing high shear resistance. It features a special resin coating that offers high weather resistance. [Features] - High strength - High rigidity - High permeability - High shear resistance - High weather resistance For more details, please contact us.

The "Public Sheet" is a civil engineering sheet made of polyester fibers with high strength. This sheet has excellent mechanical strength, weather resistance, and chemical resistance, as well as meeting the conditions of geotextiles such as permeability and filtration performance. It is lightweight and compact, making it easy to transport and install, contributing to safe construction practices. 【Features】 - Mechanical strength - Weather resistance, chemical resistance - Workability - Special processing For more details, please contact us.

We would like to introduce a case where the breathable waterproof sheet method "Public Cover Sheet F Method" was implemented. In this site, due to special circumstances, it was necessary to temporarily store contaminated soil, which required medium to long-term storage. During this storage period, it was necessary to release gases generated from organic matter contained in the soil into the atmosphere while preventing rainwater from permeating the contaminated soil. By using this method, we were able to release gases generated from organic matter in the soil into the atmosphere while preventing rainwater from permeating the contaminated soil, thereby suppressing the outflow of contaminants from within the contaminated soil. 【Case Overview】 ■Challenges - It was necessary to prevent rainwater from permeating the contaminated soil. ■Results - Achieved high water resistance through end film processing. - Suppressed the outflow of contaminants from within the contaminated soil. *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case study of the "soft ground improvement method." In this project, it was necessary to carry out embankment work on extremely soft ground with an N value of less than 1 and a high groundwater level. The extremely soft ground was not only unsuitable for construction machinery but also impassable for humans. Therefore, it was essential to ensure the trafficability (mobility) of construction machinery when performing the embankment work. By laying down a "public mesh," the surface support capacity of the extremely soft ground was reinforced, making it possible for humans to walk on it. 【Case Overview】 ■ Challenges - The ground was impassable for humans, and it was necessary to ensure the trafficability (mobility) of construction machinery for the embankment work. ■ Results - By placing embankment on the ground where the public mesh was laid, we were able to reduce the sinking of the embankment into the soft ground. *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where multiple sinkholes occurred in flat areas beside the road less than a year after the completion of road construction on reclaimed land. The areas where the issues occurred used a short-fiber non-woven sand control sheet. It is estimated that the sand control sheet was laid on the stone embankment and was exposed to seawater for a certain period until the soil was filled in. During this time, it is presumed that the short fibers gradually flowed out into the seawater, resulting in a decrease in the thickness and strength of the product. 【Proposed Countermeasure Method】 ■ For sand control sheets used in ports, we recommend long-fiber non-woven fabric "Posible." - Excellent mechanical properties such as tensile strength - Superior resistance to water, oil, weather, corrosion, chemicals, and heat - Long-term stability in soil *For more details, please download the PDF or feel free to contact us.

This is an example of implementing a geocell (geo-web) mattress construction method by laying a three-dimensional geocell on weak ground and filling it with crushed stone in layers. In this project, it was necessary to have the required ground support capacity to support the concrete retaining wall structure. The geocell is a product made from high-density polyethylene sheets that are processed into a continuous three-dimensional honeycomb shape using high-frequency welding. This method reinforced the surface support capacity of the weak ground, enhancing its load-bearing capacity. 【Case Overview】 ■Challenges - There was a need to reinforce the support capacity of the ground where the concrete retaining wall would be installed. ■Results - The surface support capacity of the weak ground was reinforced, and the load-bearing capacity was improved. *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where the mattress method using high-strength geogrid "GeoAce" was adopted on soft ground. In this project, it was found that the load-bearing strength of the box culvert construction site exceeded the ground support capacity, necessitating the consideration of foundation countermeasures. This method made it possible to install a box culvert, which is a heavy structure, on soft ground with a high groundwater level in an economical and construction-friendly manner. 【Case Overview】 ■Challenges - The foundation ground planned for contact was soft ground. ■Results - Surface improvement of the ground was carried out economically. - Effective surface improvement was achieved with minimal improvement area. *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where a high-strength fiber sheet (public sheet) was laid on a super weak ground, and surface bearing capacity reinforcement was implemented. In this site, the ground was weak and did not maintain the bearing capacity necessary for construction vehicles to pass as a construction road, necessitating reinforcement of the bearing capacity for the construction road. By laying the public sheet, the surface bearing capacity of the weak ground was reinforced, allowing construction vehicles to operate on the ground, and enabling the separation and protection of embankment soil and farmland soil. 【Case Overview】 ■ Issues - After using the land as a construction road, it is necessary to return it to its original soil condition. - There is a need to reinforce the bearing capacity for the construction road. ■ Effects - The surface bearing capacity of the weak ground was reinforced, allowing construction vehicles to operate on the ground. - It was possible to separate and protect the embankment soil and farmland soil. *For more details, please download the PDF or feel free to contact us.

We would like to introduce a case where the soft subgrade improvement method "Geotextile Long Fiber Non-Woven Fabric (Posible) Installation Method" was proposed in the road design associated with the reconstruction of agricultural roads. In this site, there were buried utilities such as pipes within the subgrade, making it difficult to adopt large-scale ground improvement methods. Therefore, by proposing design considerations based on the "Design and Construction Manual for Pavement on Soft Subgrade Using Geotextiles" (Soil and Ground Research Center), we were able to suggest a simple cross-section modification. 【Features】 ■ Excellent mechanical properties such as tensile strength ■ Superior water resistance, oil resistance, weather resistance, corrosion resistance, chemical resistance, and heat resistance ■ Long-term stability in soil ■ The sheet has a three-dimensional structure, providing excellent water permeability and filtration performance ■ Lightweight and compact, making transportation and installation easy, allowing for simple construction *For more details, please download the PDF or feel free to contact us.