Winter is filled with snow and ice, and that can easily turn your parking lot into a liability waiting to happen. Icy surfaces mean skidding cars, near falls that turn into actual falls, and a whole lot of stress.
That’s where you have to decide between sand and salt for safety. Do you use sand to improve traction or go with road salt to melt ice? In this article, we’ll go over both de-icing options and which method works best for different conditions.
Understanding De-Icing
De-icing is the process of removing ice that has already formed and bonded to the pavement. It’s a key part of snow and ice management, especially when snowy and icy conditions create hazardous surfaces.
Since ice removal can’t always be done mechanically without damaging equipment or pavement, chemical ice melt is often needed to break the bond to make snow removal easier.
De-Icing Options
When cold temperatures turn your parking lot into a slippery hazard, finding the right ice control method is crucial. Both sand and salt are commonly used solutions, but they serve very different purposes. Below, we’ll break down the benefits and drawbacks of each to help you make the best decision for your winter season strategy:
Sand
Sand is a simple yet effective way to increase traction on icy pavement. Unlike salt, it doesn’t actually melt snow or ice but it does create a grittier surface that reduces slips and skids.
Since it doesn’t rely on a chemical reaction, it remains a reliable option for snow and ice management in areas where temperatures drop too low for salt to be effective. However, sand buildup can also clog storm drains, leading to drainage issues when snow and ice begin to melt.
Salt (Rock Salt)
Salt, specifically rock salt (sodium chloride), is the most commonly used effective ice melter. It works by lowering the freezing point of water and turning ice into a slushy mixture that is easier to remove.
Salt is best applied before a storm as part of anti-icing efforts, preventing ice from bonding to the pavement in the first place. It can also be used after the snow has fallen to break up existing ice, making snow removal easier. But, its effectiveness decreases in temperatures below -15℃ / 5℉.
Alternative De-Icing Materials
While sodium chloride (rock salt) is the most common de-icing product, it’s not the only option. There are alternative ways to prevent ice, melt snow, and improve traction on icy pavement. Here’s a breakdown of some popular alternatives:
- Calcium Chloride – More effective than rock salt, calcium chloride works in extremely cold temperatures as low as -31.7℃ / -25℉. It absorbs moisture quickly, forming a brine that speeds up melting. It is less damaging to surfaces than rock salt but is still a chemical-based de-icing option.
- Magnesium Chloride – A less harsh alternative that melts ice down to -23℃ / -10℉. It’s safer for pets, plants, and concrete, making it a better choice for residential areas.
- Sugar Beet Juice – Lowers the freezing point of ice and is safe for roads, pets, and plants. Beet juice is often mixed with other de-icing products to enhance melting power while reducing chemical use.
Factors To Consider
Choosing the right de-icers isn’t just about what melts ice the fastest. Several factors can impact maximum effectiveness, from weather conditions to surface type. The perfect solution will vary depending on your specific needs and several factors.
Temperature And Weather Conditions
Not all de-icers work the same in lower temperatures. Sodium chloride (rock salt) is an inexpensive option but loses effectiveness below -15℃ / 5℉. Calcium chloride, on the other hand, can melt ice even in extreme cold. If snowfall is light, you may not need a strong chemical de-icer—sometimes sand alone can provide enough traction.
Surface Type And Condition
Different surfaces react differently to de-icers, making some products a better option than others. For example, concrete is highly susceptible to damage from overusing sand and salt, while asphalt is more durable.
Salt runoff can harm aquatic life, soil, and plants. If you’re concerned about the environmental impact, alternatives like beet juice or sand work can be safer choices. That said, while sand can help remove snow by improving traction, excessive use can clog drains and create muddy conditions.
Best Practices For De-Icing
Using de-icers effectively means more than just tossing salt or sand on a surface and hoping for the best. Follow these snow removal tips to get the best results while protecting your driveway, sidewalks, and nearby vegetation:
Application Rates And Techniques
Applying the right amount of de-icer ensures maximum effectiveness while preventing waste and damage.
- Shovel first – Before applying any de-icer, remove snow and slush to expose the surface. De-icers work best on thin layers of frost or ice.
- Apply evenly – Spread powder or pellets evenly to prevent clumping or oversaturation in one area.
- Keep away from plants and water sources – Avoid applying de-icers near grass, flower beds, and storm drains to reduce runoff and minimize harm.
Preparing Surfaces Before De-Icing
Applying a de-icer before a storm helps prevent ice from bonding to the pavement, making it easier to clear. This is known as anti-icing and can reduce overall usage.
Environmental Considerations
Chemicals from snow and ice treatments can seep into soil, damage vegetation, and harm waterways. Choosing eco-friendly options like magnesium chloride over sodium chloride or incorporating additives like beet juice can also lessen environmental impact.
Best Practices For Parking Lot De-icing
Pre-treating with anti-icing solutions before a storm can prevent icy surfaces from forming, reducing the need for excessive salt. For already frozen areas, use de-icers strategically—target high-traffic spots and avoid over-application to prevent unnecessary waste.
Making The Right Choice For Your Property
Keeping parking lots clear and safe prevents potential liabilities and accessibility issues. Choosing the best ice control strategy depends on factors like temperature, surface type, and environmental impact.
If you need reliable parking lot snow plowing and professional de-icing, Infinity Asphalt has you covered. Contact us today for expert snow management solutions that get the job done right.