Repair of unreinforced concrete floors
About unreinforced concrete
Unreinforced concrete (mass concrete) is a long-lasting construction material made from sand, aggregate (often gravel) and cement as the binder. Concrete has a high compressive strength, but a lower tensile strength. If a crack develops in unreinforced concrete it will quickly grow and reduce the strength of the concrete structure. To enable concrete to resist tensile forces and cracking, the concrete has to be reinforced using steel bars or nets.
Repair of steel fibre-reinforced concrete floors – the ConcreteFloorSystems system:
Unreinforced concrete floors do not have foundations. Concrete floors without foundations can subside if the earth underneath them consolidates or if the floor is subjected to heavy loads. Generally, concrete floors suffer uneven subsidence. As a result the floor bends, fractures or cracks. At ConcreteFloorSystems we can always provide a solution to return the subsided concrete floor to the required level.
PREPARATION
PREPARATION
We start by drilling holes through the subsided concrete floor. The hole pattern depends on the underlying soil, the type of concrete floor, the client's requirements, and the required amount of relevelling.
EXECUTION
EXECUTION
We install tightly fitting injection plugs into the drilled holes. Next we use a special injection lance to inject the lightweight concrete lifting mix under the subsided concrete floor. The whole process is carefully monitored using laser surveying equipment.
HAND-OVER
HAND-OVER
Once the client has approved the work the injection plugs are removed and the injection holes are carefully filled. The concrete floor is ready for use after 24 hours.
Projects
