This winter, some concrete won't make it through the freezing cold and deicing salt applications without damage. Some concrete will scale. The top 1/16 to 3/16 inch will slowly--sometimes quickly--flake away. But it doesn't have to. How do you prevent it? How do you keep the concrete you place this month from scaling 6 months from now? No matter what else you do, you must use air-entrained concrete. In severe freeze-thaw exposures, fresh concrete should contain 5.5 to 7.5 percent air, depending on the maximum aggregate size. But entrained air alone doesn't guarantee freeze-thaw durability. You also must follow the other practices outlined in the article.