By the way my rust stain issues are now over because i added a water softener which removes the iron from the well water.
Remove rust from concrete floor.
To sandblast concrete the likelihood is that you will remove the paste layer which is a result of a final troweling as the concrete is setting up.
How to remove rust stains from concrete garage floors.
Wheel hubs garden tools or metal buckets can also leave rust stains.
If the concrete surface is rough like a broom finish then you might consider sandblasting a small area to start with and then wait a week or so to see if the color and or texture of the concrete.
In hindsight a longer soaking would be a good idea.
However it happens a rust spot can really tarnish the look of your home.
Rust stains leave a telltale mark on concrete garage floors.
Tools like screwdrivers hammers or nails will leave rusty spots if they sit too long on the garage floor especially if they get wet.
Homes that rely on well water are also prone to rust stains as well water tends to be high in iron.
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The reddish brown rust stains on your driveway or patio may have come from a radiator leak a metal tool that was left out in the rain or from lawn fertilizer that contains iron as one of its ingredients.
How to remove rust stains from concrete by chris deziel hunker may earn compensation through affiliate links in this story.
Removing rust from concrete.
To remove stubborn rust stains from your concrete garage floor you can create a paste out of laundry detergent and baking soda.
When metal gets wet it can rust and that rust can transfer to your concrete surfaces.
Mix the ingredients and apply to the surface of the floor where the rust stain appears.
The grass did die a few inches away from the concrete but seems to be coming back two weeks later.