What to do if it rains while pouring concrete?

Never pour concrete into water-filled cavities or onto very wet surfaces, as the concrete will absorb the moisture and become compromised. If you are pouring concrete following heavy rain, push any surface water off the edge of the slab.Click to see full answer. Beside this, is it OK if it rains after pouring concrete?Pouring Concrete vs Pouring Rain. If the rain occurs when the concrete is fresh (about 2-4 hours after mixing), the surface should be protected from the rain. If the finishing process was recently completed, rainwater may not cause damage as long as it is not worked into the surface and the slab is left untouched.Similarly, how long does concrete need to dry before rain? 24 hours Simply so, what to do if it starts raining while pouring concrete? Before you start the pour, make sure that any cavities are free from water, and keep them covered as much as possible. If it started raining before you could cover the slab, don’t panic. Simply wait until the rain has passed, then push or pull the water off the edge of the surface before finishing.Does concrete set in wet ground?Damp ground will not be a problem unless is can not support the weight of the concrete. Cement/concrete does not “dry” , it cures , a chemical reaction. It absorbs water to cure, as noted , some concrete applications are sprayed with water to aid the cure.