When you’re working on a construction project, waiting too long for concrete to dry can slow everything down and leave workers twiddling their thumbs. However, drying concrete too quickly isn’t a good idea either because if it sets too fast, it can crack or end up weaker than it should be. The goal is to manage drying time so the concrete gets stronger without slowing down your project.
Tips Before You Pour
Using warm water speeds up the chemical reactions that make concrete set, but don’t make it too hot, or it will set before you can work with it. You should also shade the pour area as direct sunlight and strong wind can dry the surface too fast so keep an eye on the weather. It’s also a good idea to reduce humidity and if you’re pouring indoors or in humid weather, a dehumidifier can help remove excess moisture and let the concrete cure properly. Also, add an accelerator. Calcium chloride can be added to the mix to speed up the setting process. Follow the instructions carefully to avoid problems.
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After Pouring
After the concrete has been poured, try to keep the conditions as steady as possible. Covering it with plastic sheeting helps hold in moisture so it dries evenly. In colder weather, gentle heating nearby can help, but avoid blowing heat directly onto the surface. Stay off the concrete until it’s properly set, as walking on it too soon can weaken it.
