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  6. Unevenness Correction" Correction of uneven concrete floors "TerraTech Method

Unevenness Correction" Correction of uneven concrete floors "TerraTech Method

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TerraTech method

last updated:Apr 22, 2026

メインマーク 【全国対応】/東京・大阪・札幌・仙台・新潟・金沢・名古屋・福岡
メインマーク 【全国対応】/東京・大阪・札幌・仙台・新潟・金沢・名古屋・福岡
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We will quickly fix the "wobbling" and "unevenness" at the floor joints caused by the hollow space under the floor without damaging it!

Unevenness and bumps in the concrete floor that hinder the smooth operation of forklifts. Every time the forks pass, it rattles, causing damage to the cargo, items to fall from the forks, and requiring a reduction in speed, which significantly decreases work efficiency, doesn't it? Not only does the decline in work efficiency pose a problem, but it also presents numerous safety hazards for employees. With the "Teratec Method," we can eliminate the unevenness and bumps in the concrete floor without breaking it and without halting operations, all in a short time. Since we do not break the floor, there is almost no noise, debris, or dust generated. We offer services 24 hours a day, 365 days a year, including weekends and holidays! For adjustments to the unevenness and bumps in concrete floors in factories, warehouses, cold storage facilities, and distribution centers, please feel free to contact us. Toll-free number: 0120-873-835

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forklift.jpg

Unevenness Correction" Correction of uneven concrete floors "TerraTech Method

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forklift.jpg DSC00028.JPG
  • What is the TerraTech method?
  • Special site - Product/service details - https://pr.mono.ipros.com/uretek/product/

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basic information

【Concerns Due to Floor Instability】 - Small cracks have formed at the joint of the concrete floor, causing vibrations every time a forklift passes. - The joint of the concrete floor has started to crack. - Vibrations occur every time a forklift passes, leading to product defects. - There are issues with opening and closing doors. - There are issues with forklift operation. - The wear on forklift tires has increased significantly. - The maintenance costs for forklifts have risen. Until now, the mainstream method for eliminating instability and unevenness involved breaking the floor to replace or add new concrete. This method took about a week to complete, during which time the area could not be used. With the "Teratec Method," "We can correct instability and unevenness without breaking the floor and without halting operations." We drill holes smaller than a one-yen coin into the concrete floor and inject Teratec resin. The injected resin expands and spreads beneath the floor, filling voids. Further injection causes the resin's expansion force to lift the floor. The standard construction covers 200 square meters in one day. Forklifts can be operated immediately afterward.

Price information

After investigating the sinking amount and cavity volume, we will provide a design estimate. The inspection is free of charge, so please feel free to consult with us. Toll-free number: 0120-873-835.

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Applications/Examples of results

Total construction projects: over 4,200. 【Main Construction Clients】 Stores: Shopping centers, large retail stores, convenience stores, pachinko parlors, restaurants Warehouses: General warehouses, distribution centers, logistics hubs, refrigerated warehouses, platforms Factories: Various manufacturing plants, food factories, cold storage rooms, inspection rooms Schools: Classrooms, gymnasiums, auditoriums, kitchens Public Works: Roads, pedestrian bridges, various airport facilities, schools, community centers 【Main Clients】 ▼ Government Agencies Ministry of Land, Infrastructure, Transport and Tourism Kanto Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Chubu Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Kinki Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Chugoku Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Kyushu Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Hokuriku Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Tokyo Aviation Bureau Tokyo Metropolitan Government, First Construction Office Iwate Prefecture, Department of Land Development Aomori Prefecture, Shimokita Regional Bureau Kyoto Prefecture, Civil Engineering Office Chiba Prefecture, Sewerage Corporation ▼ Private Companies Obayashi Corporation Kajima Corporation Taisei Corporation Takenaka Corporation Shimizu Corporation Daiwa House Industry Co., Ltd. TODA Corporation Sumitomo Mitsui Construction Co., Ltd. Ando & Associates Tokyu Construction Co., Ltd. Goyo Construction Co., Ltd. Maeda Corporation Fujita Corporation Nishimatsu Construction Co., Ltd. NIPPO Corporation

Detailed information

  • DSC00028.JPG

    TerraTech resin injection The TerraTech resin injected into the joint areas of the concrete floor in the corridor eliminates unevenness. No curing period is required. Forklift access is possible immediately after the work is completed. We propose a level correction work that does not stop your operations.

catalog(7)

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[Inclination/Subsidence/Step Difference/Cavity Filling] "TerraTech Method" Correction of subsidence in concrete floor slabs due to ground subsidence or disasters.

[Inclination/Subsidence/Step Difference/Cavity Filling] "TerraTech Method" Correction of subsidence in concrete floor slabs due to ground subsidence or disasters.

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Total Solution of Mainmark

Total Solution of Mainmark

COMPANY
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Construction Case Studies: Teratech Method Case Studies Vol. 1

Construction Case Studies: Teratech Method Case Studies Vol. 1

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[Guarantee] Overview document for the 10-year warranty service "Teratec Plus 10"

[Guarantee] Overview document for the 10-year warranty service "Teratec Plus 10"

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Settlement Correction / Void Filling: Construction Case Studies - TerraTech Method

Settlement Correction / Void Filling: Construction Case Studies - TerraTech Method

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Construction Modification Work: Case Study Collection of Teratec Method

Construction Modification Work: Case Study Collection of Teratec Method

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[Automobile Maintenance Workshop: Case Study] Teratec Method

[Automobile Maintenance Workshop: Case Study] Teratec Method

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News about this product(7)

This is the first time for Mainmark to exhibit.

Announcement of Participation in "Western Japan Manufacturing Technology Innovation 2025" to be Held in Kokura, Fukuoka in July 2025.

  • Other・notification

The exhibition "Nihon Manufacturing Technology Innovation 2025," which will be held from July 2 (Wednesday) to July 4 (Friday), 2025, at the West Japan General Exhibition Center, has been confirmed! At "Nihon Manufacturing Technology Innovation 2025," cutting-edge technologies that address various challenges faced by manufacturing sites in the Kyushu and Yamaguchi regions, centered around Kitakyushu, will be showcased. Mainmark will be exhibiting for the first time, introducing the "TerraTech Method," which contributes to safety measures by filling the voids under floors where machinery and equipment are installed, and improving productivity and preventing workplace accidents by correcting floor inclinations. We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250522

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This is the first time for Mainmark to exhibit.

Announcement of participation in "MF-TOKYO 2025" to be held in Tokyo in July 2025.

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The exhibition at "MF-TOKYO 2025," which will be held from July 16 (Wednesday) to July 19 (Saturday), 2025, at Tokyo Big Sight, has been confirmed! "MF-TOKYO 2025" is an international exhibition related to forming machinery (presses, sheet metal, forming, automation, and peripheral equipment). Mainmark will be exhibiting for the first time, showcasing safety measures such as floor void filling for heavy machinery and equipment like presses, as well as the "TerraTech Method," which contributes to productivity improvement and prevention of labor accidents by correcting factory floor inclinations. We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250529

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This is the first time that the main mark is exhibiting alone.

Announcement of participation in "FOOMA JAPAN 2025" to be held in Tokyo in June 2025.

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The exhibition at "FOOMA JAPAN 2025," to be held from June 10 (Tuesday) to June 13 (Friday), 2025, at Tokyo Big Sight, has been confirmed! "FOOMA JAPAN 2025" is one of the largest exhibitions in Japan's food industry, aimed at exchanging technologies and information related to food machinery, equipment, and related devices. Mainmark will be exhibiting for the first time independently, showcasing the "TerraTech Method," which contributes to pest control through void filling under floors and improves productivity and prevents workplace accidents by correcting the slope of factory floors! ■ Main topics to be introduced: - Investigation of voids under floors, level surveys of floors, vibration surveys - Void filling method "TerraTech Method" for correcting floor subsidence without stopping operations - Construction to level tilted buildings - Ground improvement work beneath buildings We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250418

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We have extensive repair experience in environments where it is difficult to stop operations, such as stores and factories.

We have published examples of the construction work for the sinking correction project.

  • Other・notification

We have newly published a case study on our service site for the Teratec method. This is a case of settlement correction work carried out at an electronics retail store in Shiga Prefecture. There were concerns about the sagging of the store floor due to ground subsidence, and we were consulted by the company. We understand that our Teratec method was chosen because it allows for construction without interrupting daily operations. Additionally, the positive feedback from a previous project was also a key point. Our company has extensive experience in settlement measures and void filling work while maintaining daily operations for stores and factories. With eight offices nationwide, we are ready to assist you, so please feel free to contact us if you are facing issues with ground subsidence or voids under your floors. ■ Case Study (Teratec Method Service Site): https://teretek.jp/repo/r181

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メインマーク

メインマーク 【全国対応】/東京・大阪・札幌・仙台・新潟・金沢・名古屋・福岡

Building materials, supplies and fixtures

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The main business activities of Mainmark involve "returning tilted floors and buildings to a level state" and "preventing existing floors and buildings from tilting." We primarily offer the "TerraTech Method," which allows us to level tilted floors without stopping operations, and we provide various construction proposals tailored to our customers' concerns, from investigation to execution. ■ Nationwide responsible construction with over 5,000 completed projects Mainmark has established offices in eight locations across the country and conducts responsible construction nationwide. We serve a wide range of clients, including factories, stores, warehouses, offices, and apartments. ■ Non-disruptive floor tilt and subsidence correction method "TerraTech Method" Our main service, the "TerraTech Method," is a patented technique that injects TerraTech resin (rigid polyurethane foam resin) into concrete floors that have developed tilts, subsidence, steps, or voids due to ground subsidence or earthquakes. The expansion force of the resin levels the sunken floor and fills the voids beneath it. This technology is also registered with the Ministry of Land, Infrastructure, Transport and Tourism's "NETIS," ensuring its reliability. Patent No. 4896949 "Method for Correcting Sunken Floors" NETIS Registration No. "QS-080007"

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