Filling the voids under the footings" Measures against subsidence include the "TerraTech method.
TerraTech Method
The continuously sinking stepping board can be stabilized against subsidence with cavity filling.
■TerraTech Method for Suppressing Settlement of Footing Slabs The TerraTech method involves injecting a special polyurethane resin called "TerraTech" into voids that occur beneath footing slabs due to ground subsidence. By utilizing the expansion force of the resin, the voids are filled, the ground is compacted, and the footing slab is lifted. This patented method (Patent No. 4896949) addresses the concentrated loads at the edges of the footing slab caused by the formation of voids, which can accelerate the settlement of the slab and lead to issues such as wobbling. By filling the entire area beneath the footing slab with the TerraTech method, concentrated loads are alleviated, and the load is effectively transmitted to the ground. 【Features】 ◆ Installation of a single footing slab in one day ◆ The injected material is lightweight (about 1/30th the weight of mortar), significantly reducing the risk of ground subsidence due to its own weight ◆ The curing time of the injected material is quick (about 30 seconds), resulting in shorter road closure times and minimal penetration into the ground ◆ Does not use VOCs (volatile organic compounds), making it environmentally friendly and highly safe ◆ Reduces maintenance and repair costs that would otherwise need to be repeated multiple times ● For more details, please download the catalog or feel free to contact us. Toll-free number: 0120-873-835
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The urethane resin injection method was introduced to Japan in 2001, evolved uniquely within the country, and obtained a patent in January 2016. ● TerraTech Method Flow for Filling Cavities Under Roads 1. Drill a hole with a diameter of 6 mm, smaller than a one-yen coin, at the target location. 2. Use specialized equipment to inject resin under the road. 3. The injected resin begins to expand instantly. This expansion compresses and strengthens the ground, pushing up the sunken slab. 4. Confirmation of the filling is conducted through confirmation holes, etc. * Injection work: All equipment is mounted on one truck. ● Road Surface Restoration 1. Restore the injection and confirmation holes with cold mix materials, etc. ● Features of the TerraTech Method for Filling Cavities Under Roads 1. No excavation work is required, and since the injection hole is φ16mm, there are no remnants of construction and no step formation occurs. 2. The standard working time per location is about 50 minutes, minimizing traffic regulation time. 3. 80% of the final strength of the resin is achieved in 10 minutes, allowing for immediate safety assurance. NETIS Registration Number: QS-080007 (Note: The publication period has ended) Please feel free to contact us. Toll-free number: 0120-873-835
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Over 1,178,000 m² of construction achievements - Void filling work under roads (subsidence countermeasures, emergency work) - Settlement correction work at airports - Void filling work under footing plates Please feel free to contact us. Toll-free number: 0120-873-835
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Download All Catalogs![[Tread Plate / Void Filling Under Roads] "TerraTech Method (TERETEK)"](https://image.mono.ipros.com/public/catalog/image/01/e47/278207/IPROS12181223795791047058.jpeg?w=120&h=170)
![[Inclination/Subsidence/Step Difference/Cavity Filling] "TerraTech Method" Correction of subsidence in concrete floor slabs due to ground subsidence or disasters.](https://image.mono.ipros.com/public/catalog/image/01/494/209281/IPROS62099550671294161372.png?w=120&h=170)
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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"