Teratec Construction Report: Concrete Paved Road

Solving issues with concrete paved roads! Introducing examples of void filling and unevenness correction.

We would like to introduce a case where the issues of subsidence and voids in concrete paved roads were resolved using the Teratec method. The "Teratec method" is a technique that allows for the filling of "voids" beneath concrete paved roads caused by ground subsidence and groundwater, enabling the quick correction of dangerous "differentials and bumps" in the road surface. [Issues] In the concrete paved road within a tunnel on a national highway in Shizuoka, differentials and bumps were occurring. [Reason for Choosing Teratec] Due to the short duration of the national highway maintenance and repair work, conventional methods were not feasible, so we were looking for a method that could be implemented in a short time. The Teratec method was adopted because it allows for the correction of differentials in a short construction time. [Feedback After Construction] We were able to complete the work over an area of 115m2 in 2 days (from 9 PM to 6 AM the following morning). [Case Summary] ■ Concrete paved road within a national highway tunnel - Location: Shizuoka Prefecture - Construction area: 115m2 - Construction period: 2 days (from 9 PM to 6 AM the following morning) *For more details, please refer to the external link page or feel free to contact us.

basic information

【Construction Details】 ■ Drilling injection holes down to the concrete pavement slab ■ Installing a laser level at a fixed point for monitoring vertical displacement of the pavement slab, and a receiver at the injection hole edge <Step Correction> 　・Injecting polyurethane resin under the concrete pavement slab while monitoring vertical displacement 　・Injecting resin until the height difference of the concrete pavement slab is resolved and lifting it <Eliminating Bouncing> 　・Injecting polyurethane resin under the concrete pavement slab while monitoring vertical displacement 　・Injecting until it rises by 1mm to confirm that the void under the concrete pavement slab has been filled and the load of the concrete pavement slab has been transferred to the surface subbase 　・Injection completed at the point of confirming the lift *For more details, please refer to the external link page or feel free to contact us. 　Toll-free number: 0120-873-835