Knowledge Builders

what kind of salt is safe for concrete

by Dr. Billy Wilderman Sr. Published 2 years ago Updated 2 years ago
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Top Alternatives for Rock Salt on Concrete

  • Calcium Chloride – Because NJ and its neighboring areas are so prone to extremely low temperatures during the winter, we recommend that our customers look for products which contain a high percentage of calcium chloride. Calcium chloride has the lowest freezing point. ...
  • Calcium Magnesium Acetate – Calcium Magnesium Acetate is another reliable and safe alternative to rock salt on concrete. ...

Sodium chloride

Full Answer

Does salt damage concrete?

This being said, a one-time use of rock salt is unlikely to cause damage. What Damage Looks Like: The freezing water inside the concrete creates so much upward pressure on the concrete, that the smooth, non-aggregate top of concrete can “pit” or spall. This damage can be in large sections or in scattered smaller spots.

Does rock salt harm concrete?

Does rock salt eat away concrete? The answer is yes, salt does indirectly damage your concrete driveways, patios and sidewalks . Bumps and potholes don't just appear due to regular wear and tear – salt damages concrete over time by causing corrosion to occur under the surface, leading to discolored, cracked and crumbling concrete.

What is the effect of salt on concrete?

The salt will eventually eat through the concrete surfaces, such as walkways and garage floors, creating unattractive pits and a stained appearance. It is important to neutralize this salt on your concrete surfaces to prevent long term damage. Spray the concrete surfaces with warm water to neutralize and dissolve as much salt as possible.

How to protect concrete from salt damage?

  • Use concrete with a minimum compressive strength of 4,000 psi—the stronger, the better to withstand the force of expanding water.
  • Use air-entrained concrete so water can enter the tiny entrained air voids, relieving pressure from concrete pores and capillaries when water freezes and expands.
  • Don’t add water to the concrete mix at the work site.

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What is the safest ice melt for concrete?

The following are considered the safest of these products for concrete:Calcium Chloride. This is a popular snow-melt product that's considered one of the best options for concrete. ... Magnesium Chloride. ... Potassium Chloride. ... Calcium Magnesium Acetate (CMA) ... Urea.

Which salt will not damage 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 it OK to put salt on concrete?

The answer is yes, salt does indirectly damage your concrete driveways, patios and sidewalks. Bumps and potholes don't just appear due to regular wear and tear – salt damages concrete over time by causing corrosion to occur under the surface, leading to discolored, cracked and crumbling concrete.

What can I use instead of salt on concrete?

Instead of salt, we've listed a few alternatives that are much better for the environment and for those around you:Sand. ... Kitty Litter. ... Vinegar. ... Sugar Beet Juice. ... Alfalfa Meal. ... Coffee Grinds. ... Calcium Chloride.

How do you melt ice without damaging concrete?

Gravel, Wood Chips, Straw or Sawdust. Other great options to add traction to icy walkways and driveways are gravel, wood chips, straw, or sawdust. These substances don't harm your concrete, and they don't hurt the environment. Since these treatments don't melt ice and snow, it's a good idea to be proactive.

How do you keep salt from damaging 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.

What salt is safe for driveways?

Calcium chloride is the most commonly used driveway salt in the northern U.S., and it can continue to melt snow even in below-zero temperatures. It does react chemically with concrete so as to make it flake somewhat, but it is much less damaging than rock salt.

How long do you leave salt on concrete?

Press the salt into the concrete using a trowel or roller. The salt crystals should have half their diameter remaining above the surface. Allow it to dry for at least 24 hours and clean off the loose surface salt particle with the help of broom.

Is Morton Safe T salt safe for concrete?

Morton® Safe-T-Plus®: Formulated to be gentler on concrete surfaces and plants than rock salt, this ice melter can also reduce corrosion by 14 percent compared to plain salt.

How do I get ice off my sidewalk without salt?

Combine a solution of a half-gallon of hot water, six drops of dish soap, and 1/4 cup of rubbing alcohol into a bucket. This is an effective and satisfying way to learn how to get rid of ice on your driveway as you watch the ice bubble up and melt away.

How do you get ice off concrete without salt?

Create a Hot Water, Soap, and Rubbing Alcohol Mixture Simply grab a bucket and add half of a gallon of hot water, one-fourth a cup of rubbing alcohol, and around six drops of dish soap. Once it's all combined, you pour the solution over the driveway. The snow should bubble up and begin melting.

Can you put regular salt on the sidewalk?

We can Verify: You can absolutely use table salt instead of specifically-branded ice melt salt. Table salt, rock salt, and salt made for ice are the same. The only difference is the size of salt flakes.

Is any ice melt safe for concrete?

Urea And Sand While urea for ice melting acts as a fertilizer, sand offers traction. Together, they can be used for melting ice in winters but may not be good for immediate use. However, they are completely safe for the environment and concrete.

What is the best concrete sealer for salt?

Silanes, siloxanes and silane/siloxane blends are the best types of sealers to battle harmful deicing salts due to their unique penetrating, hydrophobic properties.

What kind of salt does not damage 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.

What is the safest ice melt for concrete?

Calcium Chloride. This is a popular snow-melt product that’s considered one of the best options for concrete.

What can I use instead of salt on concrete?

Sand. Sand not only absorbs sunlight, which can help snow and ice melt, but it also adds traction so that your friends and family don’t slip and fall.

Is Salt safe to use on concrete?

The answer is yes, salt does indirectly damage your concrete driveways, patios and sidewalks. Bumps and potholes don’t just appear due to regular wear and tear – salt damages concrete over time by causing corrosion to occur under the surface, leading to discolored, cracked and crumbling concrete.

When should I add salt to my driveway?

Rock salt is meant to be put down before snow falls, and keeps it from sticking to the surface, says Nichols. “But most people shovel, get it clear, then put down the salt. If you salt and then get snow on top it can turn to mush underneath and then it gets hard to shovel.”

How do you melt ice without damaging concrete?

Spritz the solution liberally onto the surface of your walkway or driveway to coat— and gradually melt —the ice.

Is calcium chloride safe to use on new concrete?

DO NOT USE Calcium Chloride (CaCl), the common white pellet melter.

What is the safest ice melt for concrete?

Calcium Chloride. This is a popular snow-melt product that’s considered one of the best options for concrete.

What ice melt does not damage concrete?

Studies have found that ice melt formulas that combine solar salt and anti-corrosion agents are less damaging to concrete and vegetation when compared to Magnesium Chloride and Calcium Chloride based ice melters.

Is it OK to put salt on concrete?

The answer is yes , salt does indirectly damage your concrete driveways, patios and sidewalks. Bumps and potholes don’t just appear due to regular wear and tear – salt damages concrete over time by causing corrosion to occur under the surface, leading to discolored, cracked and crumbling concrete.

Is calcium chloride safe to use on new concrete?

DO NOT USE Calcium Chloride (CaCl), the common white pellet melter.

Does Ice Melt ruin concrete?

It is not recommend that ice melter be used on damaged concrete. Damaged concrete will absorb the water [melted ice ] more readily since its ‘seal’ has been broken and therefore can be more susceptible to damage. It is best to reseal or treat your damaged concrete as mentioned earlier, before using any ice melter on it.

When should I add salt to my driveway?

Rock salt is meant to be put down before snow falls, and keeps it from sticking to the surface, says Nichols. “But most people shovel, get it clear, then put down the salt. If you salt and then get snow on top it can turn to mush underneath and then it gets hard to shovel.”

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.

What kind of salt is safe for concrete?

Sodium chloride (common ly known as rock salt or table salt ) is the safest de-icer for use on concrete.

Does Salt destroy concrete?

The answer is yes , salt does indirectly damage your concrete driveways, patios and sidewalks. Bumps and potholes don’t just appear due to regular wear and tear – salt damages concrete over time by causing corrosion to occur under the surface, leading to discolored, cracked and crumbling concrete.

When should I add salt to my driveway?

Rock salt is meant to be put down before snow falls, and keeps it from sticking to the surface, says Nichols. “But most people shovel, get it clear, then put down the salt. If you salt and then get snow on top it can turn to mush underneath and then it gets hard to shovel.”

Does calcium chloride ice melt damage concrete?

What’s Best For Concrete As the number of freeze/thaw cycles increases, it can contribute to damage. 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.

How do you get ice off concrete without salt?

Combine a solution of a half-gallon of hot water, six drops of dish soap, and 1/4 cup of rubbing alcohol into a bucket. This is an effective and satisfying way to learn how to get rid of ice on your driveway as you watch the ice bubble up and melt away.

Does baking soda melt ice?

Use baking soda to melt the ice on slippery steps and walkways! Because baking soda is a kind of salt, it can lower the freezing point for ice, accelerating the melting process. Plus, it’s less alkaline than calcium chloride, the salt commonly used for melting ice, which can corrode surfaces like bricks or concrete.

What can I use instead of salt on concrete?

Sand. Sand not only absorbs sunlight, which can help snow and ice melt, but it also adds traction so that your friends and family don’t slip and fall.

How old should concrete be before deicing?

Make sure new concrete is 6 months old before exposing it to a deicing salt chemical; if concrete is newer than this it could cause damage.

What is the most damaging deicer?

Sodium chloride – the most popular and most readily available deicer also known as rock salt. It is also the most damaging as it will damage concrete and metal.

What temperature does potassium chloride work at?

Potassium chloride – will only work if the air temperature is about 15ºF.

Can you use deicing salt on concrete?

If you have just installed new concrete or if you have an existing concrete slab you are going to want to be diligent about choosing the best deicing salt for your concrete. Deicing salts can be extremely damaging to concrete causing it to spall, pit and crack even after one winter season. In order to combat these harmful effects you are first going to want to seal your concrete with a penetrating salt repellent concrete sealer.

Can deiciers damage grass?

Avoid coming into contact with plants or grass as they can also be damaged by deiciers.

What is the best ice melt for concrete?

Calcium Magnesium Acetate – Calcium Magnesium Acetate is another reliable and safe alternative to rock salt on concrete. It has incredible melting power and exothermic properties. Those who choose to work with CMA-based products will also be able to enjoy options in terms of providing safe ice melting materials for use around children, animals, and pets. Safer Than Salt and Safer Than Salt Breeder’s Preferred are designed to work in extremely low temperatures without posing a safety threat to the most precious members of your families. The flakes are tinted to make it easy to see where the ice melt has been spread, and the product is less toxic to children and animals, should they accidentally ingest snow that contains the ice melt. In addition to this, the ice melt will not cause chemical burning or irritation in the paws of dogs and cats. Those who have concerns about the environment might also choose to work with a CMA-based product called Environmelt. This type of ice melt will quickly and efficiently take care of snow and ice without posing a threat to the vegetation throughout your property or harming the groundwater supply.

What is the best product to melt snow in NJ?

Calcium Chloride – Because NJ and its neighboring areas are so prone to extremely low temperatures during the winter, we recommend that our customers look for products which contain a high percentage of calcium chloride. Calcium chloride has the lowest freezing point. This means any snow or ice it melts will remain in liquid form, even when temperatures plummet. The result is that your concrete surfaces will be free and clear of slippery spots and you won’t need to worry about the harmful impact of repeated freeze-and-thaw cycles on your concrete. The product with the highest concentration of calcium chloride is Peladow Calcium Chloride Pellets. This particular ice melt can be purchased by the bag or pallet, and is very easy to spread and use. It contains more than 90% calcium chloride and works to lower the freezing point of water and to heat snow and ice exothermically at the same time. This makes it possible for the product to melt snow and ice 2-5 times faster than traditional rock salt. If you’re unable to obtain Peladow Calcium Chloride Pellets, we would also recommend Dowflake Xtra. This product contains 83-87% calcium chloride and also works quickly and in a range of extreme temperatures. Dowflake Xtra is ideal for high traffic areas where pellets or crystals could be a tripping hazard.

How much calcium chloride is in ice salt?

It contains more than 90% calcium chloride and works to lower the freezing point of water and to heat snow and ice exothermically at the same time. This makes it possible for the product to melt snow and ice 2-5 times faster than traditional rock salt.

Why does salt melt on concrete?

Some of this liquid will find its way into pores or fissures. Because sodium chloride will begin to freeze at 25 degrees Fahrenheit, the water will re-freeze in the cracks on especially cold days or nights. When this happens, the ice will expand and create larger gaps, holes, and weak points. In addition to everything else, the rock salt may react with the concrete, corroding the surface and leaving a residue.

Why does sodium chloride freeze?

Because sodium chloride will begin to freeze at 25 degrees Fahrenheit, the water will re-freeze in the cracks on especially cold days or nights. When this happens, the ice will expand and create larger gaps, holes, and weak points. In addition to everything else, the rock salt may react with the concrete, corroding the surface and leaving a residue.

What is a CMA based ice melt?

Those who have concerns about the environment might also choose to work with a CMA-based product called Environmelt. This type of ice melt will quickly and efficiently take care of snow and ice without posing a threat to the vegetation throughout your property or harming the groundwater supply.

Is Dowflake Xtra safe?

This product contains 83-87% calcium chloride and also works quickly and in a range of extreme temperatures. Dowflake Xtra is ideal for high traffic areas where pellets or crystals could be a tripping hazard. Calcium Magnesium Acetate – Calcium Magnesium Acetate is another reliable and safe alternative to rock salt on concrete.

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What Problems Do People Have with Rock Salt and Concrete?

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People began to question whether or not rock salt is safe for concrete when they started linking spalling with the use of the de-icer. After applying sodium chloride across concrete surfaces like driveways, sidewalks and parking lots, property owners would notice breakagesand the appearance of small holes. Through time…
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Why Do These Problems occur?

  • In order to understand why people have had trouble with rock salt, you must first know the basics of concrete composition and the chemistry of rock salt. When looking at concrete, it appears to be a solid and impermeable mass. In reality, though, the pavement is actually quite porous in nature. This allows moisture to be absorbed into the concrete. Even though ice and snow cannot be abs…
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Is Any Type of Rock Salt Safe For Concrete?

  • Before you can determine if an ice melting product is safe for your concrete surfaces, you need to be aware of the typical weather patterns in your area. For regions where the temperatures don’t usually drop very far below freezing, sodium chloride can be used without any risk of damages. Here in the northeastern states, though, we’re used to temperatures approaching zero and even …
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How Can I Further Minimize The Risk of Damages?

  • Many home and business owners in the northeast may choose to utilize calcium chloride for melting ice, but that doesn’t mean that sodium chloride can’t be used at all. Because rock salt is less costly than other options, some people are still interested in how it can be used safely. One of the best things that you can do is to have the driveway treated with a clear coating that can prot…
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1.FAQ: What Salt Is Safe For Concrete? - Haener Block

Url:https://haenerblock.com/blog/faq-what-salt-is-safe-for-concrete.html

23 hours ago Salt-based products are most effective. However, they can harm plants and concrete. Potassium chloride, on the other hand, is safer and can work effectively in temperatures as low as twelve …

2.Question: What Kind Of Salt Is Safe For Concrete?

Url:https://haenerblock.com/blog/question-what-kind-of-salt-is-safe-for-concrete.html

22 hours ago Some are corrosive, while others have warming properties that are safe for new concrete. The most common type of salt is rock salt, which is primarily used in Northern America. However, …

3.Best Salt For Concrete? - Haener Block

Url:https://haenerblock.com/blog/best-salt-for-concrete.html

20 hours ago 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 …

4.BEST DEICING SALT FOR CONCRETE - Concrete Sealer …

Url:https://concretesealerreviews.com/best-deicing-salt-for-concrete/

33 hours ago 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 …

5.Rock Salt on Concrete: The Safest Options for Driveways

Url:https://braensupply.com/rock-salt-on-concrete/

15 hours ago However, there is no such thing as "safe for concrete" de-icing salts or chemicals. The first winter, for new concrete, salt should never be used. Sand can be used to increase traction when …

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