If the concrete surface was hand or machine troweled for a finish the odds are good that sandblasting will permanently change the finish and make it more susceptible to staining.
How to remove rust stains from concrete porch.
You can re treat the area as needed for stubborn stains.
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Sandblasting still may not remove the rust stains.
In hindsight a longer soaking would be a good idea.
The grass did die a few inches away from the concrete but seems to be coming back two weeks later.
Homes that rely on well water are also prone to rust stains as well water tends to be high in iron.
We love how it looks and loved decorating it with patio furniture and a gas fire pit.
By the way my rust stain issues are now over because i added a water softener which removes the iron from the well water.
When metal gets wet it can rust and that rust can transfer to your concrete surfaces.
To clean a concrete patio of regular grime or to eliminate a rust stain pour the acidic product over the rust and allow it to sit for at least 15 minutes to allow the acid to penetrate and dissolve the rust.
Rusty metal outdoor furniture plant pots and tools can transfer that ugly orange brown color to concrete.
By the next time it rains the stains will be gone.
However it happens a rust spot can really tarnish the look of your home.
Get rid of grease stains.
If you have rust stains on your concrete pour some cola direct from the bottle or can onto the stain and let it sit.
Our diy molded concrete patio is a fantastic part of our backyard.
Cola contains some of the same ingredients as store bought rust removers scary but true.
This is the cheap and easy tried and true method that i used to get rust stains off of our concrete patio.
Rust stains on your concrete.
How to remove rust stains from concrete.