クリテック工業 List of Products and Services

The "CS-50" is a bridge expansion device that bonds rubber and steel plates through press vulcanization. It exhibits excellent water-stopping performance. The steel vertical uneven shape enhances durability and achieves ultra-low noise, making it suitable for wide-span floor slabs. 【Features】 ■ Press vulcanization bonding of rubber and steel plates ■ Excellent water-stopping performance ■ Improved durability ■ Ultra-low noise ■ Compatible with steel floor slabs *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

The bridge expansion device "Hybrid Joint CS Type" has passed water-tightness and durability tests according to the specifications of the Metropolitan Expressway. It has been decided to be newly adopted by the Metropolitan Expressway Company. As a result, the CS Type has become a pioneering approved product for the steel deck slabs of the Metropolitan Expressway. 【Features】 ■ Dedicated for steel deck slab installation ■ Compatible with single-sided and double-sided steel deck slabs ■ Excellent water-tightness ■ Improved durability ■ Ultra-low noise *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

This product is a specially designed expansion joint developed to meet the conditions of the Nagoya Expressway. Urban expressways, such as the Metropolitan Expressway and Hanshin Expressway, have different design conditions and quality standards for each highway. Therefore, Crittec Industries consistently responds to the development, manufacturing, and construction of expansion joints in accordance with each standard. In urban expressways, lightweight and slim designs are often adopted, leading to the use of steel deck bridges. In typical bridges, there is a thick concrete deck beneath the pavement, while in steel deck bridges, the area directly beneath the pavement consists of steel materials. On the other hand, steel deck bridges exhibit significant expansion and contraction behavior due to temperature changes and traffic, necessitating high followability and durability at the joint sections. Additionally, when installing joints, it is essential to meet complex performance criteria, such as "a shape that fits within the pavement," "high resistance to strain and vibration," and "a structure that can be securely fixed to the steel deck." The "Hybrid Joint NCS-40" has passed the fatigue load test (durability of over 15 years) set by the Nagoya Expressway Public Corporation, and the improvements made to various technologies have led to its adoption. Currently, this product is in the process of being registered as a "new technology" certified by the same corporation. *Please feel free to contact us for inquiries.

Crittec Co., Ltd. not only sells products but often takes responsibility for installation work as well. We strive to improve our products by considering the issues that arise during installation and the damage conditions of the removed existing expansion devices. 【Construction Examples】 ○ Construction Location: Mie Prefecture ○ Bridge Name: Kumikawahara Bridge ○ Product: CS-50 and others ○ Comment: This is the installation of the CS-50, which is a steel deck type. For more details, please contact us or request a catalog.

Critic Industrial Co., Ltd. not only sells products but often takes responsibility for installation work as well, striving to improve products by considering issues that arise during installation and the condition of damaged existing expansion devices that are removed. 【Construction Case】 ○ Construction Location: Fukuoka Prefecture ○ Bridge Name: Wakatō Bridge ○ Product: CS-125 ○ Comment: This was the installation of the CS-125, which is a steel deck type. Additionally, due to its large size with steel decks on both sides, the installation was carried out with caution. For more details, please contact us or request a catalog.