Very possible with reinforcement as well, but the concrete has shrunk and shrinkage cracks have formed when the water has left, water takes up a lot of space in concrete and when it leaves, that space needs to be replaced with something, such as cracks. That is why concrete floors are vacuumed, and then they are empty of water and virtually crack-free.
Okay, if it is the correct amount of reinforcement and correct placement, the remaining causes could be rapid water evaporation or a lower w/c-ratio than assumed for the chosen amount of reinforcement. I assess that these are plastic shrinkage cracks and they occur within 8 hours of casting.
The choice of possible double reinforcement does not solely depend on the load but also on crack width limitation. The reinforcement distributes the cracks so that they become very small (normally under 0.2 mm) instead of large and visible. In villa slabs, for example, it is important if you have normal or high radon ground.
The choice of possible double reinforcement does not solely depend on the load but also on crack width limitation. The reinforcement distributes the cracks so that they become very small (normally under 0.2 mm) instead of large and visible. In villa slabs, for example, it is important if you have normal or high radon ground.
I don't think it has anything to do with the reinforcement at all. The slab has simply dried too quickly. They have both heat additives and fiber reinforcement in the concrete, and everything was very carefully done just because we wanted concrete floors. But it seems like they should have covered the entire slab right away.
We hired out the casting ourselves just to make sure everything was done correctly. Therefore, it feels disappointing to have to change the plans with the polishing. We can't spend 150,000 on grinding the slab only to later find out it turned out poorly. And then spend just as much again to fix it with flyt for example. The slab is 400 m2 so it costs quite a bit...
That didn't turn out well, no... It's not going to work to sand it and make it look nice because the cracks will be quite deep and there's no guarantee it looks much better further down either.
If you want a concrete floor, only self-leveling compound will solve it, but there might of course be issues with the height. Another option could be some epoxy treatment that doesn't become so thick...
If you want a concrete floor, only self-leveling compound will solve it, but there might of course be issues with the height. Another option could be some epoxy treatment that doesn't become so thick...
How was everything resolved?M MPinje said:The height doesn't matter that much, it's probably more that it's not so exciting to float 300 m2 with very open spaces. I've considered if epoxy could be the solution.