HC Omega & HC Omega Sinus Slide ®
The floor slab should be divided into square sections as much as possible. If this is not possible, the proportion of 3/2 for the width/length of the floor slab should be respected as much as possible.
The distance between the joints is determined in function of the expected shrinkage of the concrete. The shrinkage of a floor slab is strongly dependent on a number of thermal variables as well as the quality of the concrete. Shrinkage can vary between 0,3 to 0,5 mm/meter. In any case, an attempt must be made to limit the opening of the joints to a maximum of 20 mm. An indication in normal conditions would be floor sections of 30 to 40 metres. However, the advice of the project leader or expert is always recommended because shrinkage can vary considerably from country to country due to local environmental factors and concrete quality.
For intensively loaded floor sections, such as floors at loading bays and thoroughfares, we advise the use of the patent pending Sinus Slide® joint. The added cost is minimal relative to the total project investment, and is quickly recovered in view of the many advantages. Only with savings on the replacement costs of forklift’s wheels the payback period is less than one year.
Fixed structures in the building such as columns and walls must be isolated with compressible material.
Ensure that no fixed connections are placed between 2 different floor slabs that could hinder the movement of these floor slabs, e.g. racks, conveyor belts, crash barriers, etc.
For some floors that are placed on a watertight membrane or insulation for example, the use of anchoring in the ground is not permitted. As an alternative we have adjustable placement feet available or other custom made solutions in our product range that do not require drilling through the foundation.
For floors on supporting piles, we always advise dilatation joints with a double row of anchors.
Check the presence of utilities and underground lines when using anchoring with pins in the ground.
1.String a line in the location where the profiles are to be installed.
2. Lay the joints out along this line.
3. Place the first joint parallel to this line.
4. Bring them to the correct height using wedges or the height adjustment tool.
5. Hammer or drill pins into the ground vertically along the ends of the anchors with 2 on each side of the end of the profile. If desired, an additional pin can be placed in the middle of the profile.
6. Check the height level of the profile with a laser and check the alignment relative to the taut line.
7. Use a spirit level to check the levelness of the profile across the length.
8. Weld the pins to the profile. If welding work is not permitted on site, special adjustment feet are available.
9. Place the next profile with its overlap in the first profile. With the overlapping, the start of this profile is immediately at the correct height.
10. Bring the end of the second profile to the correct height with wedges or the height adjustment tool.
11. Repeat these steps from point 5 until an intersection, wall or column is reached.
1. Place the intersection in the location specified on the layout plan.
2. Measure the distance between the last placed joint and the intersection. Cut the joint to be placed to the correct length using a cutting disc.
3. Place the joint that has been cut to length according to the procedure described above.
4. Bring the intersection to the correct level and weld it to the joint. Remember to weld the supplied noses on to prevent the penetration of poured concrete into the joint.
Maintenance and Finishing
The HC-Omega dilatation joint is designed to protect the edges of concrete slabs that are automatically formed when the joint opens due to the shrinkage that occurs in the drying process. We advise filling the openings that are created with a joint or sealing product to prevent the accumulation of dirt and dust in the joint. Sealing the joint is possible for traditional HC-Omega joints as for HC-Omega Sinus Slide® Joint.
The final sealing may only be done once the expansion of the joint is