Deicing products are not all equal. Using the wrong product on the wrong surface in the wrong quantity can cause damage for certain. While deicing materials can be corrosive, the biggest threat to your pavement is water itself. As ice/snow melt the water finds its way into tiny pockets in your pavement. When it freezes it expands and causes weak spots to break and separate. Using the proper ice melt in the proper quantity not only melts that ice but also helps to evaporate the surface moisture helping to protect your pavement.