福美建設 List of Products and Services

CS-21 is a method that enhances the durability and water tightness of cracked areas by infiltrating a fine crack with a solution, thereby densifying the interior and deep surface of the crack. Even if the crack is not visibly sealed on the surface, it suppresses the intrusion of water and various deterioration factors. *For more details, please refer to the PDF materials or feel free to contact us.*

• Renovation and repair methods

This document presents a comprehensive concrete repair method using lithium nitrite, which supports the 100-year era of concrete. It clearly explains the deterioration of concrete structures, the selection flow for repair methods for salt damage and carbonation, and the selection flow for repair methods for ASR, using diagrams for better understanding. [Contents] ■ Deterioration of concrete structures ■ Selection flow for repair methods for salt damage and carbonation ■ Mechanism of passive film regeneration by nitrite ions ■ Role of lithium nitrite ■ Selection flow for repair methods for ASR *For more details, please refer to the PDF document or feel free to contact us.

• Renovation and repair methods

The "TACSS Method" is a one-component system that uses a chemical solution that reacts with water but is difficult to dissolve in water. It confronts high-pressure and high-flow underground water, reliably stopping water and providing waterproofing for structures while minimizing adverse effects on groundwater, making it a highly environmentally safe chemical injection method. Due to its excellent properties, this system is utilized not only for ground reinforcement but also for the preservation of archaeological sites. 【Features】 ■ Complies with JWWA K-135 leaching tests ■ Acquired F☆☆☆☆ certification ■ Forms high-strength, highly waterproof solid bodies and waterproof layers ■ Does not contaminate groundwater even with unreacted chemical solutions or in a gelled state ■ Exhibits excellent performance over a long period *For more details, please refer to the PDF materials or feel free to contact us.

• Renovation and repair methods

The "Hinodakutairu Joint α CV Type" is a cast iron expansion device that achieves a durability equivalent to 30 years through its unique cast iron technology. The bolt fastening structure allows for partial replacement, reducing lifecycle costs. It is possible to protect the water-stopping material with a load-supporting plate and dustproof material. The water-stopping structure at the connection surface is designed to minimize gaps by compressing the protruding water-stopping material, effectively preventing leakage from the connection surface. 【Features】 ■ Maintainability: Reduced lifecycle costs through partial replacement with a bolt fastening structure ■ Durability: Achieves a durability equivalent to 30 years through unique cast iron technology ■ Water-stopping capability: Protection of water-stopping material with a load-supporting plate and dustproof material ■ High water-stopping capability at the connection surface ■ Safety during passage: The semi-circular shape mitigates impact during vehicle passage *For more details, please refer to the PDF document or feel free to contact us.

• Subsidiary materials

The "AT Method" is a seismic reinforcement method for bridge piers that significantly reduces the thickness of the reinforcement wrapping compared to the RC wrapping method and conventional PCM wrapping method. By cutting grooves into the surface of the existing concrete and embedding reinforcement bars, the increase in wrapping thickness can be greatly reduced. As a result, the range of applicability expands even in cases with structural constraints. 【Construction Procedure】 ■ Surface treatment → Core space cutting → Core drilling → Embedded groove cutting → Reinforcement bar embedding commencement → Band reinforcement bar installation → Protective coating → Finish material application *For more details, please feel free to contact us.

• Renovation and repair methods
• Special Construction Method