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What causes concrete to harden?

Updated: 9/14/2023
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Wiki User

15y ago

Best Answer

Chemical reaction of lime and dehydrated gypsum with water.

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Wiki User

15y ago
This answer is:
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Anonymous

Lvl 1
3y ago
what?
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Anonymous

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3y ago
How does that make sense?

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Q: What causes concrete to harden?
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What is meant by binder material in concrete?

The binder in concrete is usually cement. Cement causes the aggregate and sand to bind together mechanically and harden to make a solid surface.


How do you cut up a bag of harden concrete mix?

With a sledgehammer.


Can you eat concrete?

if you smother it in kethcup you can eat anything Actually no you cannot eat concrete. Well you should not eat concrete, the body is primarily made up of water. What is needed for concrete to harden? Water. Think about it, it would harden in your lower intestine and you would have some hard crap. Literally. Not a good idea.


What are the constituents of concrete?

Concrete is composed of water, cement and sand. It has three constituents. Concrete is mixed as a wet mixture, poured into place and allowed to harden and dry.


A catalyst is added to the fiberglass resin to do what?

it causes it to harden.


What temperature does concrete need to be to harden?

all things that need to dry are based on 72 degrees concrete needs 30 days to fully cure.


What causes limestone to harden with age?

the limestone harden because theirs another layers of limestone on top of it which pushes the bottom layer and flatten it.


Why does concrete have to be placed compacted and finished within a certain time from when the concrete was mixed?

Concrete cures and hardens from chemical reactions over a specific period of time. If the concrete work is not completed within the specific period of time, the fluid concrete will harden and become unworkable.


What material is very durable artificial rock?

No. Cement is used to hold the rocks of concrete together. Cement by itself does harden in water. but it not a very hard or durable product.


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its the calcum salts that build up soft tissue and causes it to harden


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What causes fingernails to be hard?

Keratin... it's a natural substance that makes the nail harden.