Joints are a fundamental component in planning a monolithic floor. They have bearing on the size, execution of the work and functionality.
The fewer joints there are to the surface, the fewer difficulties there will be for the user.
Whilst joints are essential to the work, a monolithic flooring with fewer joints is one of the main aims of our company.
The planning of a Flooring System, includes calculating the maximum size for the continuous plates. Research centres around cement, systems for reinforcement, the type of joints most suitable for use and the equipment used for laying the flooring.
Each Performance Floor includes a series of ideal joints for use during the construction phase. These are largely construction joints or patented joints or those available on the market and are determined according to the area of the building being planned.
In the main, these joints are:
1. Isolation joints
2. Contraction or control joints
3. Construction joints
1) Isolation joints
These are created to separate the cast concrete from other upright structures. The flooring must not be constrained by walls, columns, footings, manholes, ducts etc.. which may be present in the flooring. These must be isolated using suitable compressible materials applied around the perimeter, individually reinforced in relation to their use.
2) Contraction or control joints
These are made at the time of casting to take advantage of the different contraction phases of the concrete used to construct the flooring, of the substrate and the reinforcement system adopted These joints are made by sawing a channel into the concrete to an appropriate depth to allow the joint to contract at a predetermined point. The cuts should be made as soon as possible and the size and depth are directly in proportion to flooring project size. Ordinary and non-specific concrete such as the DURSICAL, designed by us for each type of floor, has a very distinctive element for the final quality of the work.
3) Construction joints
They are used along the perimeter of the casting area for each work lot. Joints are the most important and challenging aspect in terms of using the floor. In fact, they are the main weakness of each monolithic floor. They support a wide range of factors that must be taken into account in detail by the project designer: The substrate, the positioning in respect of the alignment of the building structure, the type of reinforcement used, calculation of contraction/expansion, the wear resistance, the type of concrete to reduce warping of the plate, etc.
These all contribute to the best intended use for each flooring solution.
Employing our metal joints on application, inserted in each Floor Performance data sheet, will ensure the best results over the life of the pavement. Manual Joint, metal Joint.