Quikrete Fast-Setting Concrete Mix is simple to use (simply add water) and dries in 20 to 40 minutes. It's the quickest way to install posts for items like mailboxes, fences, and lighting. That is more powerful than the concrete used in most housing foundations. It can be colored or tinted with additives such as paints or stains and will not crack like regular concrete does over time. The ingredients are natural gas, silica sand, limestone, iron oxide, and sugar. There is no aluminum or magnesium powder used in its manufacture which makes it eco-friendly. It is very durable and resistant to heat, acids, alkalis, and chemicals. The color can change depending on how it is mixed so you can match it to any décor. However, the color will not last as long as normal concrete. Fast-setting concrete is suitable for both indoor and outdoor use and is easy to clean. It doesn't smell like ordinary concrete and can be used for various projects including patios, pool decks, and playgrounds. The only disadvantage of this type of concrete is that it cannot be used when moisture is present because the mixture would become wet and unusable. Also, it won't set if temperatures reach 100 degrees Fahrenheit or higher.