Quiflex® joint for new buildings
QUIFLEX® joint for new buildings
The problem
Concrete shrinkage during drying
If a joint construction is installed in new floor slabs, it is subjected to a great deal of stress in the first 6 months. On the one hand due to movement caused by temperature changes, but primarily due to the shrinkage of the drying concrete.
An oversized joint could compensate for these movements. But since most of the movement is lost after 6 months, the high installation costs would be wasted money. The approach of waiting 6 months before installing a joint is also not an alternative, as the surface is usually already in use before then.
Conventional joint:
2/3 Concrete shrinkage
1/3 “real” movement
Bowls of the concrete slab
In addition to shrinkage, concrete floors also tend to cupping during the drying process: The floor slab bends upwards at the edges and therefore also at the joints. Built-in joint constructions are bent upwards as a result and now represent a high point.
Concrete bowls
The solution
The QUIFLEX® new construction joint is installed during the construction of the floor. It consists of the usual metal substructure, which prevents a height offset, and two heavy-duty plastic profiles. In the first 6 months, when the concrete has the largest part of its shrinkage and swelling, these represent the joint construction. The two profiles are then simply removed and replaced with the QUIFLEX®. This compensates for the increase in height caused by the bowl.
Advantages of Quiflex® joints for new buildings
No additional costs in the metal profile
The concrete cupping that occurs up to this point can be leveled out
Simple Quiflex® installation, as the recess is already present
The Quiflex® only needs to be dimensioned for real movement, not for concrete shrinkage
No additional costs in the metal profile
The concrete cupping that occurs up to this point can be leveled out
Simple Quiflex® installation, as the recess is already present
The Quiflex® only needs to be dimensioned for real movement, not for concrete shrinkage
References
Your request
Your contact person
Rupert Rauhut
Project management
Phone +49 7195 90662-64
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