And sometimes the easiest way to remove that peeling concrete is to simply grind it lightly to remove everything that is left loose. Things you know lead us to a good concrete base. If the surface of the driveway has peeling concrete, then most likely, the cause is an installation error. Common mistakes include adding too much water to the mix to facilitate pouring; spraying the concrete surface with water to prolong the finishing time; and not curing the concrete properly after installation.
There are special concrete coating and resurfacing products that are specifically designed for this application. Here, the top layer of concrete peels off, leaving the surface uneven and pitted while the aggregate is exposed below. One thing I was taught in my years as a concrete finisher is that there are two things in life that are true,. But in most cases, when it comes to chipping concrete, this will not be the necessary depth, it will only be necessary to peel off the surface itself.
This type of surface failure, known as chipping or flaking, is more common in colder climates where freeze-thaw cycles and thawing chemicals are prevalent. And yes, sandblasting works well to repair concrete that flakes and looks good if you know what you're doing. What is not acceptable and can be avoided is surface cracking, called “shrinkage cracking”, and chipping due to poor design, placement and finishing of the mixture. There was a lot of damaged (soft) concrete beneath the surface that you couldn't see just by looking at it.
Repeating this process over and over again during the winter causes a lot of stress on the concrete and the surface splinters, flakes or pits. Again, my preference is to lightly polish the surface, but a good pressure washer will clean the concrete without problems. If you try to coat the concrete without first fixing the deep areas, the facing material will end up lower than the rest of the concrete. When moisture in concrete freezes, these air cells relieve internal pressure by providing microscopic chambers for water expansion as it freezes.
See examples of how to cover your concrete walls that will give you ideas on how to finish your basement. In addition, water added during the finishing process can dilute the amount of Portland cement in the upper layer of concrete. De-icing chemicals only aggravate already stressed concrete by allowing more water to migrate into concrete, increasing the size and depth of husking failures when freezing occurs.