However, it was during the discussion of dividing the family property that, as she was thinking about what pots and pans to divide, a thought suddenly flashed through her mind.
This made her eyes light up instantly, and she couldn't help but get excited.
"Sister, I think I remember how to make cement."
Once I've made the cement, it will be much easier for the people of Chijia'ao to build houses.
Furthermore, I can use this formula to collaborate with Qin Mu.
I know what cement meant to people in ancient times, and it's impossible for us to monopolize it.
I understand the saying, "A common man is innocent, but possessing a treasure is a crime."
By the way, if you don't want to stay in a stone house this time, you can change the roof to blue tiles.
The things the Qi family moved back with were just sitting there unused.
When Chi Yu said this, her eyes were unusually bright, and she couldn't wait to do it right away.
But it was already dark outside, so she had to suppress her emotions.
When Chi Qiao heard her recall how cement was made, she couldn't help but feel happy too.
"Really, you've figured out what to do? Also, don't give me those blue tiles."
You have three older brothers, and I am just your eldest sister-in-law. If you give me to the other two families but not to them, then that would be unfair.
"Or we could find an opportunity later, get it out, and openly take it back, saying it's for the clan to build an ancestral hall."
Once the fish in the pond realized that it was not scarcity but inequality that was a concern, it gave up on the idea.
It would be a good idea to take this opportunity to donate the money to the clan to build an ancestral hall.
"Okay! Then let's find a chance to go out in a few days and bring them back."
As for making cement, we can use wood ash.
First, sift the wood ash to remove any charcoal and residue that wasn't swept away. Then, add water to the remaining fine ash, stir, and let it stand.
Potassium in wood ash is soluble in water.
This water is like potassium fertilizer, which can be used to water our sweet potatoes, essentially fertilizing them.
Without potassium, the remaining mortar is just calcium compounds that are insoluble in water.
After we drain this stuff, we put it out in the sun to dry.
No, you can't just dry it in the sun, because you'll have to take it to the charcoal kiln to be fired later.
Therefore, it's best to knead them into balls before drying them.
After drying, they remain in clumps, making them easy to calcine later.
The ash lumps after calcination directly transform from calcium compounds into calcium oxide.
Calcium oxide is a fragile substance; it crumbles into powder with just a gentle squeeze.
To turn calcium oxide into calcium hydroxide, we simply need to add water.
After all, adding water will release heat.
Actually, we can consider this a success; it's just wood ash cement.
The last point, however, might be a little tricky to handle.
We have cement now, but when building a house, we need to mix the cement with sand.
The problem is, we don't have any rivers here, so where are we going to get sand?
If we can get our hands on it, we won't have to worry about building a house!
Chi Qiao is a liberal arts student, and she is not good at chemistry, a science subject.
Besides, I graduated from university so many years ago, and I've long forgotten what I learned in high school.
Now, nobody remembers anything about calcium compounds anymore; it's all about calcium oxide.
Anyway, after listening to her sister excitedly talk about so much, she was completely confused and had no idea what it all meant.
All I know is that there's still a chance they can make cement.
So, even though the cement hadn't been made yet, she felt proud at that moment.
Look how outstanding her sister is.
In this era, if they could produce cement, even if they only took a 10% or 5% cut of the business, they probably wouldn't have to do anything for the rest of their lives; they could just sit back and wait to eat and drink.
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