Salt will melt it the fastest but too much salt can damage concrete and blacktop. Sand or cat litter work well to help with traction but have little effect on melting.
salt
Table Salt.
Salt melts ice, sand improves tires grip on the road
Salt
Rock Salt try it the salt will go straight down
Rock salt is typically the most effective at melting ice quickly due to its composition of sodium chloride, which lowers the freezing point of water. Sand, mineral, and cat litter do not have the same melting properties as rock salt.
SALT DOESNT MELT THE ICE IT JUST LOWERS THE FREEZING POINTWell Salt Does Make Ice Melt Faster :) I made the project and my result were correct SALT melts ice faster :)
In extreme winters, it becomes important to deal with the snow on roads and everywhere. Salt and sand can be both helpful. Brick sand is the best option, it absorb the sunlight and helps the ice to melt quicker.
Salt because the salt with ice or water turns into a new compound and lowers its freezing point.
You need to determine what you think will melt the fastest, and that will be your hypothesis. If you think that pepper will melt it faster, you would say "My hypothesis is that the pepper will melt ice faster than the other variables (sand, salt, and sugar)."
Sand will not melt ice, it only adds a rough surface to enhance traction. A rough guideline for most "sand/salt" ice melt commercial products, if there isn't an improvement within a half hour, re-apply the ice melt. A Salt or similar compound that undergoes an exothermic (releasing heat) reaction with water will melt ice, and sometimes salt and sand are mixed for this purpose, the sand providing traction until the salt melts the ice. Keep in mind that non-salt ice melts can work faster and are less damaging to concrete and metal compared to salt. The speed of the ice melting depends on many factors, such as the thickness of the ice, ambient air temperature, and amount of salt applied.
Sand generally melts ice faster than clay. This is because sand has a lower thermal conductivity than clay, which allows it to absorb more heat from its surroundings and transfer it to the ice more effectively. Additionally, the granular nature of sand provides more surface area for contact with the ice, resulting in faster melting.