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Road improvement works Product List

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[Construction Achievements] Sto Dry Spray Method - Tome Road Improvement Project

[Construction Achievements] Sto Dry Spray Method - Tome Road Improvement Project

[Tomoya Road Improvement Project] High-level technology and quality! Nearly 40 years of experience with polymer cement dry spraying method.

The "Sto Dry Spray Application Method" was developed in Germany, a leading country in concrete repair technology, and is a dry spraying method using premixed polymer cement mortar with nearly 40 years of proven performance in Europe. Just before the factory-produced premixed polymer cement mortar, which is composed of cement, aggregates, polymers, and fibers in predetermined ratios, is sprayed, an appropriate amount of water is supplied, and the material is compacted by the impact force of air pressure. This allows for the formation of cement mortar that meets the required performance for cross-section repair materials. 【Features】 ○ Can consistently supply high-quality materials ○ No need for a material stockyard ○ Construction is possible under traffic vibrations ○ Rebound material has very little moisture and is easy to handle ○ No generation of washing water for equipment or packaging dust, allowing for environmental consideration For more details, please contact us or download the catalog.

  • Reinforcement and repair materials
  • Renovation and repair methods
  • Wood processing

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[Construction Achievements] Water Jet Method - Tome Road Improvement Project (No. 5 Box Culvert)

[Construction Achievements] Water Jet Method - Tome Road Improvement Project (No. 5 Box Culvert)

Safer construction is possible with the Tome Road Improvement Project! It is a method that has low running costs and high effectiveness.

The "water jet method" is a construction technique that operates solely using the power of water, eliminating the need for chemicals and resulting in low running costs while providing high effectiveness. Okitsuma Construction Co., Ltd. has introduced semi-automatic robots, enabling safer construction. Delicate areas that require fine adjustments can be handled by human skill, and the balance of work with semi-automatic robot construction has achieved a level of safety and efficiency greater than ever before. 【Features】 ○ Used for chipping, roughening, and substrate adjustment at construction sites ○ Does not create fine cracks (micro-cracks) in the base material ○ Can be processed while ensuring appropriate adhesion strength For more details, please contact us or download the catalog.

  • Reinforced concrete construction
  • Special Construction Method
  • Renovation and repair methods

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[Metal Road Construction Method Case Study] Nara Prefecture Road Improvement Project

[Metal Road Construction Method Case Study] Nara Prefecture Road Improvement Project

Ensuring safe and smooth passage! Case study of road improvement work on National Route 425, Jūzato to Sakon Nishikawa section (II-2 section).

National Route 425 in Nara Prefecture is a road that facilitates regional exchange, connecting the city of Gobō in Wakayama Prefecture and the village of Totsukawa in Yoshino District, Nara Prefecture. However, there are continuous sections with narrow widths and poor alignment, making it difficult for vehicles to pass each other in many areas. Therefore, construction was carried out with the aim of eliminating narrow width sections, ensuring safe and smooth passage, and contributing to tourism promotion. The site is located within the area of the World Heritage Kumano Kodo, and due to the need for consideration of the landscape and the preservation of water channels, the metal road construction method was adopted. 【Case Overview】 ■ Client: Nara Prefecture, Gojō Civil Engineering Office ■ Construction Period: January 5, 2022 – June 30, 2022 ■ Total Length: 19.0m ■ Width: 6.95m *For more details, please refer to the PDF document or feel free to contact us.

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  • Special Construction Method

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[Metal Road Construction Method Case Study] Yamanashi Prefecture Road Improvement Project

[Metal Road Construction Method Case Study] Yamanashi Prefecture Road Improvement Project

Design and construction that avoids interference with existing structures is possible! Here is a case study on the main local road Fujikawa-Minobu Line.

Here is an example from the emergency road maintenance and reconstruction project ordered by Yamanashi Prefecture. The Fujikawa Minobu Line (Prefectural Road No. 10) is an important route designated as a second emergency transport road. The site had a thick alluvial fan layer, and existing structures (stone walls and drainage) were in close proximity, creating a challenging environment. As a result, the design and construction that could avoid interference with existing structures while ensuring traffic on the existing road was evaluated positively, leading to the adoption of the metal road construction method. 【Case Overview】 ■ Client: Yamanashi Prefecture, Kōnan Construction Office (Minobu Branch) ■ Construction Period: March 24, 2021 – August 31, 2022 ■ Total Length: 42.5m ■ Width: 7.0m (8.2m) *For more details, please refer to the PDF document or feel free to contact us.

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  • Special Construction Method

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[Construction Example] Metal Road Method

[Construction Example] Metal Road Method

Images included! Introducing examples from dam construction work and road improvement projects.

This document introduces various examples of the "Metal Road Construction Method." It includes the construction work for the main body of the Komagome Dam in Aomori Prefecture, as well as the road improvement work for the Koiwai Motokoiwai Line in Saitama Prefecture. Images are also included, so please download and view them from the related catalog below. [Contents] ■ Aomori Prefecture: Komagome Dam Main Body Construction Work ■ Saitama Prefecture: Koiwai Motokoiwai Line Road Improvement Work ■ Yamanashi Prefecture: General Prefectural Road Takashita Kashizawa Line Road Improvement Work ■ Shizuoka Prefecture: (National) Route 136 Disaster Prevention and Safety Grant (National Road Reconstruction) Work ■ Wakayama Prefecture: National Route 480 Koyasan ■ Kumamoto Prefecture: National Route 445 (Kuzurese Work Section) Vitality Infrastructure Grant (Road Improvement) Work *For more details, please refer to the PDF document or feel free to contact us.

  • Special Construction Method

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