INNOVATIVE METHODS OF Premium Technologies GEOPOLYMER INJECTION ALLOW URGENT REPAIR OF CONCRETE ROAD SURFACES. THANKS TO THE USE OF GEOPOLIMERS, IT IS POSSIBLE TO STRENGTHEN THE GROUND UNDER THE ROAD LAYER IN A MATTER OF HOURS, AS WELL AS STABILIZE AND LEVEL THE POSITION OF SINKING CONCRETE SLABS.
Long-term operation, excessive loads, environmental factors, etc. can lead to a deterioration in the condition of roads. Individual concrete slabs used in the construction of the roadway and parking areas can sag. As a result, the quality of the road surface deteriorates and the operational load on the car increases.
This can be especially pronounced in areas with heavy traffic, in freight parking lots, loading areas, maneuvering areas, etc. The described cases can provoke accidents, to prevent which repair and alignment of the concrete surface is performed.
LIFTING CONCRETE SLABS
The range of tasks that the Slab Lifting technology allows you to solve is very wide. Geopolymers can be used to raise and level the position of the sunken slabs of the road section, to ensure the reconstruction of emergency zones of the roadbed adjacent to bridges, railway crossings, cargo platforms, port docks, etc. The use of geopolymer resins is much more effective than the use of traditional technologies and materials for restoring road surfaces.
At the same time, a full cycle of repair procedures using geopolymers takes from several hours to several days, while the restoration of concrete pavement with the dismantling and reinstallation of slabs takes weeks and even months. Work using geopolymers can be carried out only partially limiting traffic during the period of the lowest road traffic. Passenger cars, forklifts and even heavy goods vehicles can move along the repaired section 15 minutes after the completion of the work.
OTHER TECHNOLOGY POSSIBILITIES
Deep Stabilization injection technology can also be used for the repair and arrangement of roads. It allows to increase the bearing capacity of the base soils on which the road or parking area is arranged. This may be relevant when laying new highways and autobahns. The use of geopolymers on excessively moist soils is especially effective. In this case, the strengthening of the soil during injection occurs by displacing “excess” water.
ALGORITHM OF WORKS
To stabilize, level and lift sections of the concrete road surface using Slab Lifting technology, it is necessary to drill a certain number of holes with a diameter of 12 – 16 mm in the roadbed. Tubes for injecting the material are inserted into the prepared holes. Geopolymer resins are introduced directly under the concrete surface, expanding to fill the voids in the soil and displacing “excess” liquid. When expanding, the geopolymer material provides compaction and strengthening of the soil, as well as lifting of subsided concrete slabs. The accuracy of the slab lifting is monitored in real time using laser levels. The maximum measurement error is ± 1 mm.