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I think due to the presence of Cao in the cement.... it may be the result of excessive drying of concrete cubes

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Q: Why does concrete bubble when wet?
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Related questions

Which has greater density wet or dry concrete?

Dry concrete has a greater density than wet concrete because the water content in wet concrete decreases its overall density. When the water in wet concrete evaporates during the curing process, the concrete becomes denser.


What is the Difference between wet concrete and hard concrete?

Wet Concrete:In Wet concrete the property of the concrete is suggested based on the individual material contribution .Hardened Concrete:In Hardened concrete the property of the concrete is identified as a whole.


Is wet concrete stronger than dry concrete?

no


How much does wet concrete weight?

Wet concrete weighs about 4,000 per cubic yard. Some types of concrete weigh more or less. Lightweight concrete weighs about 1,000 pounds less.


What weighs more wet sand or dry concrete?

Dry concrete weighs more than wet sand because concrete is denser and more compact than sand, even when wet. Concrete is composed of cement, sand, gravel, and water, which results in a heavier material compared to sand alone.


Wet concrete weight?

weight of hardened concrete + 100 kgf/m3


Can you lay wet concrete on dry concrete?

This may be possible if you prep the dry concrete with a latex bonding agent.


Who would sink in wet concrete the most an elephant or a woman?

Both would sink all the way down to the deepest depth of the wet concrete.


Is it possible for wet concrete to stain linolem?

Yes if there is mold growth on the concrete from the moisture.


How much does wet concrete weigh?

Wet concrete weighs approximately 4,000 pounds per square yard. That amount varies depending on the water content. Lightweight concrete weighs about 1,000 pounds less.


How do you remove bubbles from a sisal rug after it has gotten wet?

If a sisal rug begins to bubble, the best thing to do is get it wet. That way, if the bubbling is minor, the sisal rug will shrink as it dries and the bubble should disappear.


Is concrete harmful?

Wet concrete is caustic- it will burn your skin. Concrete DUST is not good to inhale- it may contain silica. Solid, cured concrete is about as hazardous as a rock.