The lightweight "Bell Block Lite" dramatically evolves tunnel construction!
● Developed and released a dedicated bell block for on-site handholes in tunnels using square E-flex. ● Improved workability by changing the material from resin concrete to resin, reducing product weight by approximately half. ● Contributed to the development of road infrastructure by shortening construction periods for tunnel work using square E-flex. As a new addition to the multi-line square E-flex series, we have developed and released the Bell Block Lite, which can contribute to shortening the construction period for tunnel cable installation. Compared to the conventional resin concrete bell blocks, it is lightweight at about half the weight, which is expected to enhance labor efficiency in construction. Additionally, while the current mainstream wall thickness for on-site handholes in tunnels is 150mm and 200mm, the previous resin lineup required a 50mm recess at the connection part of the handhole bell block for a wall thickness of 200mm for curing. With the addition of a type that accommodates a wall thickness of 200mm, it will now be possible to handle handholes with a wall thickness of 200mm without the need for curing.
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basic information
The Basic Plan for Strengthening National Resilience aims to ensure the passage of emergency vehicles within one day and general vehicles within approximately one week after disasters, in preparation for increasingly severe wind and flood damage and imminent large-scale earthquakes. To eliminate missing links in high-standard trunk roads, tunnel construction projects are being advanced in various locations. Meanwhile, in the construction industry, there is a growing demand for materials that improve productivity at construction sites due to the declining working-age population and accelerating aging. With the grace period for the upper limit regulation on overtime work under the Work Style Reform-related law ending in April 2024, there is an increasing need for further labor-saving measures in construction. To address these challenges, our company is developing products that achieve labor-saving in construction. - Main material: Flame-retardant ABS resin - Flame retardancy: Self-extinguishing properties
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Since its founding in 1884, the company has focused on the pillars of transmitting, connecting, and storing energy, information, and heat. With the core strengths of three materials: "metal," "photonics," and "polymer," it has developed a wide range of products in various fields, including infrastructure for information and communication, energy, automotive components, and electronics, and has expanded its reach worldwide.