How to make cement at home (simple experiment)

This experiment is not included in the MEL Chemistry subscription–we just love to show you the beauty of chemistry💙

It’s easy to make the sim­plest type of ce­ment your­self. In this ex­per­i­ment, we’ll pre­pare a mix­ture which you can use to make a lit­tle house, for ex­am­ple for a dog.

Safe­ty pre­cau­tions
Wear a pro­tec­tive mask, gloves and glass­es, and work in a well-ven­ti­lat­ed room.

Warn­ing! Only un­der adults su­per­vi­sion.

Reagents and equip­ment:
* build­ing lime (cal­ci­um ox­ide, 100 g);
* sand (300 g);
* wa­ter (100-150 ml);
* deep con­tain­er for mix­ing;
* trow­el;
* bricks.

Step-by-step in­struc­tions
Mix the build­ing lime with wa­ter. Grad­u­al­ly add sand and stir thor­ough­ly. We get a sim­ple ce­ment mix­ture. Ap­ply it to bricks and leave for a week. The bricks are stuck to­geth­er!

Pro­cess­es de­scrip­tion
In the re­ac­tion of cal­ci­um ox­ide with wa­ter, cal­ci­um hy­drox­ide forms.
СаО + Н₂О = Са(ОН)₂
In air, cal­ci­um hy­drox­ide re­acts with car­bon diox­ide with the for­ma­tion of durable cal­ci­um car­bon­ate, which en­velops and sticks the sand par­ti­cles to­geth­er
Са(ОН)₂ + СО₂ = СаСО₃ + Н₂О

[giovannithefirst]

No playing, no whole scenes, no animations, camera effects, editions and all this stuff that makes us waste more time, thank you for not be like others and bring the raw information instead, much easier ✋

[jere]

It's lime and sand. It's cheaper to just buy cement instead of lime. You would still have to go to the hardware to buy lime, so just buy cement, it's usually around 1/3 the price of lime.

[pirced]

u can get lime by destroying shells to a fine powder, I saw that in dr stone

[eunaekim]

So thirty people don't like anything that even hints of construction materials!

[abuthahir]

ഒരുകിലോ സിമെന്റിന് 20 രൂപ,
ഈ മെറ്റീരിയൽസിന് 50.kkk

[tonyelleevans]

Ugh.. I was looking for a video to possibly make some type of concrete from household products. The first thing they list, calcium oxide, is something pretty much nobody has under their kitchen sink. If I was willing to buy that, I'd be just as willing to buy actual concrete mix. Lol. 🤦🏽‍♀️

[buadel]

Leave it for a week! .. am gonna like this video when the cement dry (joking)

[bjrock]

I wonder, how does homemade cement compare to the ones you buy?

[DRS]

haven't made cement you have made lamest way humanly possible....

[nethraraju]

After a week very bad👎🏻👎🏻👎🏻👎🏻👎🏻 not good