"Filling of voids beneath the road" - "TerraTech method" for filling voids beneath paved roads.

Solve the problems of mortar filling! With a fast curing and lightweight injection material (about 1/30 of traditional mortar), it also reduces the risk of ground subsidence.

One of the causes of subsidence and collapse of paved roads is the hollowing out beneath the road. The "TerraTech Method" fills these voids without breaking the road, preventing subsidence and collapse. It achieves a reduction in maintenance and repair management costs. 【What is the TerraTech Method?】 A special lightweight and expandable urethane resin called "TerraTech Resin" is injected into the hollow areas beneath the road. The expansion force of the resin compacts the ground and fills the voids, suppressing subsidence. Since the curing time of the injected material is quick, the time for road restrictions is short, leading to significant reductions in labor and maintenance costs. 【Features】 ◆ Eliminates the risk of collapse in just a few hours ◆ TerraTech Resin cures quickly, resulting in shorter restriction times ◆ TerraTech Resin is a lightweight material (about 1/30 the weight of mortar), reducing the risk of re-subsidence due to its own weight ◆ Minimal construction by-products and waste generated ◆ Compressive strength of approximately 430 kN/m², stronger than flowable fill soil (300 kN/m²) ◆ No need for lifting and reinstallation of concrete pavement slabs, making it possible to work within tunnels ◆ The expansion force of TerraTech Resin compacts the subgrade, eliminating the need for compaction of the subgrade beneath the concrete pavement slabs. *For more details, please download the catalog or feel free to contact us.

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basic information

For filling voids under roads and beneath pavement slabs, large-scale excavation work is not necessary. This method allows for "repairs without breaking the road and in a short time," and it has been adopted in various locations across Japan. 【Main Clients】 Kanto Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Chubu Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Kinki Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Chugoku Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Kyushu Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Hokuriku Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Tokyo Aviation Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Tokyo Metropolitan Government First Construction Office, Iwate Prefecture Land Development Department, Miyagi Prefecture Shimokita Regional Citizens Bureau, Kyoto Prefecture Civil Engineering Office, Chiba Prefecture Sewerage Corporation 【Other Construction Examples】 ● Correction of floor deflection and unevenness in warehouses and factories ● Correction of floor deflection and unevenness in stores, shopping centers, and convenience stores ● Adjustment of fittings in apartments ● Correction of floor deflection and unevenness in gymnasiums and classrooms ● Correction of floor deflection and unevenness in hospitals and nursing facilities Please feel free to contact us. Toll-free number: 0120-873-835