What Kind Of Salt Is Safe For Concrete?

by | Last updated on January 24, 2024

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Sodium chloride

(commonly known as rock salt or table salt) is the safest de-icer for use on concrete.

What kind of salt will not hurt concrete?


Magnesium chloride

is a great choice! While magnesium chloride is more expensive than sodium chloride and calcium chloride, it is less likely to damage your concrete or your lawn. This type of salt only works in temperatures down to 0° F, which is better than sodium chloride but not quite as good as calcium chloride.

Is there a safe salt for concrete?

Michigan Concrete Association recommends

a regular salt

instead of an ice melter, like Morton table salt, since it’s 100 percent sodium chloride (NaCl). This, however, is recommended for concrete that has been set for quite some time.

What kind of ice melt does not damage concrete?


Calcium Chloride

is the Best Ice Melt for Concrete

Hopefully, now you can understand that calcium chloride is an ice melt safe for concrete. It has a much lower risk of intensifying the freeze-thaw cycle like rock salt since it can work at much lower temperatures.

What is the safest ice melt to use on concrete?

  • Calcium Chloride. This is a popular snow-melt product that’s considered one of the best options for concrete. …
  • Magnesium Chloride. This option is also considered one of the best and safest products for concrete. …
  • Potassium Chloride. …
  • Calcium Magnesium Acetate (CMA) …
  • Urea.

How do you melt ice without damaging concrete?

  1. Salt is Damaging. The most common way of preventing ice and snow on your porches, sidewalks, and driveways is salting prior to ice and snow. …
  2. Shovel First. One of the tried and true safer alternatives to salting pavement is using a shovel. …
  3. Cat Litter. …
  4. Heated Stair Mats. …
  5. Other Alternatives.

How do you prevent salt damage on concrete?

The only way to stop this type of damage is with a

water repellent sealer

, such as a siliconate water repellent or a silane siloxane water repellent. Water repellent sealers such as these form a hydrophobic barrier that caused water and other liquids to bead off the surface.

Does rock salt destroy concrete?

Sodium chloride also known as rock salt, is the most common deicing salt. Rock salt releases the highest amount of chloride when it dissolves.

Chloride can damage concrete and metal

. … Concentrations of calcium chloride can chemically attack concrete.

What can I use instead of salt on concrete?

  • Sand. …
  • Kitty Litter. …
  • Vinegar. …
  • Sugar Beet Juice. …
  • Alfalfa Meal. …
  • Coffee Grinds. …
  • Calcium Chloride.

How long does it take for salt to damage concrete?

All concrete is not created equal. The types of concrete that are most susceptible to spalling damage is freshly poured concrete and low strength concrete. Newly poured concrete, which is still holding a high water content already, usually needs

around 30 days

to “harden off” before rock salts can be used.

Is ice melt and rock salt the same?

The difference lies in the mix. Halite, also known as rock salt, is strictly the mineral sodium chloride. Ice melt is

typically a blend of sodium chloride with other

minerals, such as magnesium and calcium.

Does ice melt ruin concrete?

Damage to

concrete is rarely caused by the ice melter used

but rather by the effects of the freeze/thaw cycle. Your risk of damage can be reduced substantially by remembering these few points: Remove slush and broken ice. Use a good ice melter products – prevent chemical damage – extend freeze/thaw cycle.

What can I use on new concrete to melt ice?

  • Rock Salt. Rock salt does melt ice, although it does so at a slower rate than ice melt. …
  • Calcium Chloride. Calcium Chloride absorbs moisture being a hygroscopic chemical. …
  • Magnesium Chloride. …
  • Calcium And Magnesium Acetate (CMA) …
  • Potassium Chloride.

Is calcium chloride bad for concrete?

Independent testing of commonly used deicers has shown that

calcium chloride is the least harmful to concrete

(excluding Sodium Acetate and Calcium Magnesium Acetate) after 500 freeze/thaw cycles. Incidentally, liquid calcium chloride is widely used in concrete to decrease the set time of concrete in the winter.

Does vinegar melt ice on sidewalk?

This white vinegar, wood ash, and water ice melt method is not only extremely effective in getting rid of old ice and preventing new ice from forming, it’s also

gentle on plants, sidewalks, and driveways

.

How do you get ice off concrete without salt?

In a bucket,

combine a half-gallon of hot water, about six drops of dish soap, and 1⁄4 cup of rubbing alcohol

. Once you pour the mixture onto your sidewalk or driveway, the snow and ice will begin to bubble up and melt. Just keep a shovel handy to scrape away any leftover pieces of ice.

David Martineau
Author
David Martineau
David is an interior designer and home improvement expert. With a degree in architecture, David has worked on various renovation projects and has written for several home and garden publications. David's expertise in decorating, renovation, and repair will help you create your dream home.