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  3. クリテック工業 本社、大阪営業所、福岡営業所
  4. <Media Information> An article titled "Proving 100 Years of Durability" has been published in Bridge Communication.
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  • Mar 13, 2025
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Mar 13, 2025

<Media Information> An article titled "Proving 100 Years of Durability" has been published in Bridge Communication.

クリテック工業 クリテック工業 本社、大阪営業所、福岡営業所
The article "Proving 100 Years of Durability" was published in the March 1, 2025 issue of "Bridge Communication." *The full article is available in the related PDF document. Please download and read it. We encourage you to take a look!* <Excerpt from the article> Crittec Industries announced that its main product, the expansion joint "Hybrid Joint 3LII-500," has been proven to have a durability of 100 years through fatigue loading tests conducted by a third-party organization. The 3LII type meets NEXCO specifications. The load support plate and anchor plate are designed as a vertical integrated structure, providing high durability and preventing damage from metal fatigue. In October to November 2024, using a fatigue testing machine at the Construction Machinery Construction Association's Comprehensive Research Institute, a third-party organization, it cleared a maximum loading weight of 260 kN for 12 million cycles. This is based on the assumption that a 25-ton large vehicle ran over the 3LII-500 for 12 million times, equivalent to a 100-year durability. According to the "Road Bridge Design Guidelines," the standard design service life for bridges is 100 years. For newly constructed bridges, there is no need to replace the expansion joints for 100 years. The 3LII type is maintenance-free, eliminating the need for traffic restrictions for sound inspections, thereby reducing maintenance costs and improving safety.
Please refer to the PDF of the related materials for the full article.
Please refer to the PDF of the related materials for the full article.
Product advertisement published along with the article.
Product advertisement published along with the article.
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橋梁通信 2025年3月1日号 記事全文.pdf[3182013]

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Crittec Industries Website
Expansion Device Product Information
Crittec Industrial Website
An article titled "Proving 100-Year Durability through Fatigue Testing" published in the Bridge News.
Kritech Industries YouTube
A video of a fatigue load test proving a durability of 100 years has been released.

Related product

橋梁新聞_250101号_クリテック工業_広告_ol_イプロス用_1000-1000.jpg

Durability 100 years, expansion device, hybrid joint, 3LII type.

Bridge expansion device proven to last 100 years! No replacement needed for new bridges for 100 years! Long-term water-tightness, maintenance-free [NEXCO specification compliant product].

The Hybrid Joint 3LII type has a vertical integrated structure of the load support plate and anchor plate, which provides high durability and prevents damage from metal fatigue. Its durability is ultra-long-term, lasting 100 years! It has been proven through fatigue loading tests conducted by a third-party organization, successfully clearing the equivalent of 12 million cycles, which corresponds to 100 years. This assumes that a 25-ton large vehicle has traveled over the 3LII type 12 million times, equating to a 100-year durability. The standard design supply period for bridges is 100 years. For newly constructed bridges, there is no need to replace the expansion devices for 100 years. The 3LII type is maintenance-free, eliminating the need for traffic regulation during sound inspections, leading to reduced maintenance costs and improved safety. It is a product capable of accommodating large expansion amounts (150–350mm) and wide gaps (up to 730mm), making it one of the largest among expansion devices that have passed NEXCO standards. It has been widely adopted on highways across the country as a product that meets NEXCO specifications. For more details, please contact us or request a catalog.

  • Bridge Materials
  • Foundation construction

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RIMG0167.JPG

Expandable device "Hybrid Joint 3LIIA type (with guide plate)"

By shaping the steel plate into a guide plate type, it prevents damage to the main body of the grader due to expansion and contraction in snowy areas.

The Hybrid Joint 3LIIA type has a vertical integrated structure for the load support and anchor plate sections, making it highly durable with almost no damage from metal fatigue. By using steel plates vertically, the exposed areas are minimized, resulting in very low impact during operation and making the product less prone to noise and vibration. It is capable of accommodating large expansion and contraction (200–600mm) and wide gaps (up to 1230mm). 【Features】 ○ Supports large expansion and contraction and wide gaps ○ High watertightness due to double sealing structure ○ Long-term durability and maintenance-free For more details, please contact us or request a catalog.

  • Joints between components

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Related catalog(3)

Crittec Industrial NEXCO Specification Hybrid Joint Catalog

Crittec Industrial NEXCO Specification Hybrid Joint Catalog

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【Expansion Device】 Hybrid Joint <3LII Type> Catalog

【Expansion Device】 Hybrid Joint <3LII Type> Catalog

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【Expansion Device】 Hybrid Joint Comprehensive Catalog

【Expansion Device】 Hybrid Joint Comprehensive Catalog

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Advantages and Disadvantages of Digitizing Contract Operations from Paper | paperlogic

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By digitizing contract operations, you can reduce many costs, including stamp duty and mailing expenses. ◆ Four Benefits of Electronic Contracts - Cost reduction for printing, stamp tax, mailing, and original document storage - Improved operational efficiency through system-based sending and stamping - Prevention of tampering with timestamps - Enhanced searchability of documents 【Many Benefits for the Other Party as Well!】 - Both parties can confirm that the document has not been tampered with - No worries about losing the original paper documents - Streamlined operations due to the absence of mailing and binding hassles - Quick contract conclusion through email or system confirmation ◆ Disadvantages of Electronic Contracts - Costs for service implementation and operation - Need for business partners to understand electronic transactions -----------------------------------------------------   Consult with paperlogic for electronic contract services! -----------------------------------------------------

Oct 23, 2025

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Digital Agency: "Paperlogic can be used as contract documents for the national and local governments."

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"Electronic contracts for national and local governments are also available with 'paperlogic Electronic Contracts'" In December of last year (2023), we made an inquiry regarding our service 'paperlogic Electronic Contracts' under the Digital Agency's gray zone elimination system concerning the 'Law and Orders Regulating New Business Activities.' As a result, we received a response from the Digital Agency stating that 'paperlogic Electronic Contracts' can be used as an electronic record in place of paper contracts for national and local government contracts. "'paperlogic' is also endorsed by the Digital Agency" In this inquiry, we received confirmation that 'paperlogic Electronic Contracts' can be utilized as an electronic record in place of paper contracts for national and local government contract documents. From now on, you can confidently use 'paperlogic Electronic Contracts' for all types of contracts, including administrative contracts and discretionary contracts, not only between private companies but also in the contracting practices of local governments. For business document digital transformation and electronic contract services, please feel free to consult with paperlogic.

Oct 21, 2025

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[Free Materials Available] Introducing Useful Information on Vehicle Detection Sensors!

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To customers considering the introduction of vehicle detection sensors for parking lot construction, design, or management: Are you facing any challenges with current issues or selecting the right sensors for parking management? Hotron offers free materials that explain how to utilize vehicle detection sensors and the benefits of their introduction! ▽ Here is the lineup of materials ◉ Vehicle Detection Sensor Basic Guide This guide focuses on the challenges and solutions in parking lot operations, introducing the overview of vehicle detection sensors. ◉ Key Points for Introducing Vehicle Detection Sensors This material discusses the benefits of introduction based on installation locations and specific challenges. ◉ Case Studies of Vehicle Detection Sensor Implementation This document presents the challenges before implementation and the results after introduction. For more details, please download from our website and check it out. https://www.hotron.co.jp/download/

Oct 21, 2025

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The health management solution "GenVital LTE" has added new features: "Message Sending Function" and "IoT Integration Function."

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We are pleased to announce that starting from October 20, 2025, we will be adding new features, "Message Sending Function" and "IoT Integration Function," to our health management solution "GenVital LTE." "GenVital LTE" is a service that assesses the physical condition of on-site workers in four levels based on heart rate and location data collected from wristbands, as well as the heat index at the work site, and sends alert notifications to both the work manager and the workers themselves. With the addition of these new features, work managers will be able to send predefined or custom messages to the wristbands, allowing the wearers to receive notifications through sound and vibration, enabling quick and efficient work instructions and alerts. Additionally, by integrating with the cloud measurement service provided by GRIFFY, automatic notifications will be sent to the wearers when measurement values such as rainfall, wind speed, slope, noise/vibration, and dust concentration exceed warning levels. This will achieve complete automation of the work process, from data measurement to alerting on-site workers. This will further contribute to improving the safety of on-site workers and streamlining and reducing labor in site management.

Oct 21, 2025

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"Artificial marble Staron, Staron" BUOSCANO. Counter, washbasin countertop.

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BUOSCANO, which offers Italian fast food at YOKOSUKA PORT MARKET. BUOSCANO is an Italian restaurant that uses vegetables from the Miura Peninsula, providing "fast food Italian" that is easy to eat. To express the concept of enjoying authentic Italian cuisine in a casual setting, the store uses rough tiles with different textures and natural materials for the plasterwork. The honest expressions created by handwork create a space where high-quality dishes can be enjoyed in a friendly atmosphere. Color Pattern: Tempest Meteor (FM111) Application Areas: Cash register countertop, sink countertop Design: KAMIJIMA Architects Person in Charge: Naoki Kamijima Construction: Tanizawa Construction Total Floor Area: 42.84m² Building Type: Commercial facility, store, restaurant Location: 6 Shinminato-cho, Yokosuka City, Kanagawa Prefecture, 238-0005 URL: https://kamijima-architects.com/YSK

Oct 21, 2025

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