Can I Pour Concrete in the Rain?

β€œCan I pour concrete in the rain?” This is one of the most common questions our clients here at Clayton Concrete & Backhoe often receive. The concern is warranted since Tulsa, Oklahoma City is a hotbed for rain and other inclement weather throughout the year. Once and for all, let us settle this question.


Effect of Rainwater on Concrete

There is a reason why most concrete pouring stop during rain. The main problem is how the strength of the concrete mix will be affected. Water is essential in concrete, but the wrong proportion or too much distribution can greatly damage its integrity, durability, texture, and appearance.


If it starts to rain during the mixing, transferring, pouring, and basically when the concrete is still fresh (roughly 2-4 hours after mixing), then the strength will be compromised. The increase in water will making the pouring easier and you might not notice the effects right away, but there is a high chance that the concrete is already prone to damage. It is likely to develop dusting, cracking, crumbling, and surface scaling.


If the concrete has set is down to its finishing process, rainwater will no longer cause damage. In fact, many experts say that keeping water on the surface might even be beneficial. However, too much i.e. ponding water might cause discoloration or a change in texture.


If it has been 4-8 hours after mixing, there is a high chance that your concrete will be safe from rainwater.


Precautionary Measures When Pouring Concrete in the Rain

Concrete pouring should generally stop during rain, but if your team is unable to, here are a couple of precautions to keep in mind:


Make sure that the construction team has a protective enclosure area ready in case rain falls any time of the day.


If it does start to rain while in the mixing process, it is vital to have the concrete covered with plastic sheeting. Keep in mind that the plastic should not come in contact with the surface.


We strongly recommend avoiding concrete pouring during heavy rain and strong winds.


Professionals need to be fully knowledgeable in the water-cement ration, especially in case rainwater seeps into the mixture.


Visit our blog again to learn more about our concrete pouring services here in Clayton Concrete & Backhoe. You can also call us today and we would be happy to serve you right away. Thank you.