Salt stains on concrete paving (courtyard and paths) do not go away

  • Erstellt am 2023-03-23 08:30:41

Chris S.

2023-03-23 08:30:41
  • #1
Hello everyone,

In the summer of 2022, we paved the courtyard and paths of our new building with concrete pavers. In the winter, we salted 3-4 times due to severe black ice, and now since the beginning of this year, these unsightly spots (see attached pictures) have appeared, which I have not been able to remove despite several attempts. I have tried using a high-pressure cleaner and also tried a soda solution (100ml in 10 liters of water) twice. It got a little better but I can't get it completely or at least significantly better :( It bothers me a lot. Do you perhaps have any ideas or does anyone know the problem? I would be very happy to receive your feedback. Thank you in advance.
 

i_b_n_a_n

2023-03-23 10:05:14
  • #2
Unfortunately, this no longer helps the OP, but maybe others reading here will benefit ;-)
Who in the year 2022 still comes up with the idea of spreading salt?

From the Federal Environment Agency:

Our tips

Remove snow from the sidewalk as quickly as possible with a shovel or broom.
Use salt-free abrasive spreading materials such as sand, grit, or granules (identifiable in stores by the Blue Angel).

Know-how

The use of road salt is very harmful to trees and other plants, animals, bodies of water, vehicles, and buildings (especially concrete). The repair or containment of the damage causes high costs every year...

Use spreading materials like sand, grit, or granules: The use of road salt is prohibited in most municipalities and punishable by a fine...
 

Chris S.

2023-03-23 10:23:23
  • #3


I am fully aware of that, but when everywhere lava granulate, etc. was sold out and only road salt was available in hardware stores and the like, I thought better to spread salt than to endanger people's health in cases of extreme slipperiness and then possibly face a lawsuit because I didn't spread sufficiently! Still, thanks for the info!!
 

WilderSueden

2023-03-23 10:32:46
  • #4
There are paving stones that react sensitively to salt. Do you happen to have any of those? As far as I know, this mainly concerns pore paving stones; it even goes so far that some manufacturers do not recommend paving driveways and car parking spaces with them because salt water dripping from the car could cause damage.
 

Chris S.

2023-03-23 10:36:30
  • #5
I have standard concrete pavers. No one told me whether and to what extent they are susceptible :(
 

WilderSueden

2023-03-23 10:43:13
  • #6
Normal concrete paving should actually not be that susceptible. Of course, salt still isn't good for it. Have you already tried scrubbing with a brush?
 

Similar topics
20.10.2020Is it possible to lay KG pipe in gravel?17
29.03.2021Cleaning cobblestones from sand18
10.10.2021Terrace: Laying tiles on gravel19
06.05.2025Terrace ceramic tiles in gravel - Any experience?15

Oben