Ever since Empress Changsun left with Li Yuan and Li Shimin's concubines, princes and princesses, Li Xuan had completely stayed in his bedroom.
Wait until next year, when the weather warms up and the permafrost is unblocked, we must start groundbreaking to build a house.
Moreover, two layers must be added.
At that time, no matter how many people come, I can stay in the room on the second floor!
Thinking about it, Li Xuan couldn't help but feel full of motivation.
Now, the iron-making furnace in the small workshop next to it can easily produce one thousand kilograms of pig iron in one day.
At most, I can improve myself on how to turn pig iron into steel.
After all, when building a house, all steel is poured inside.
As for the bricks!
It seems that he remembered the last time he went to Chang'an City and the Wang family's gate. It seemed that the Wang family's courtyard wall was built with some exquisite strips of blue bricks.
Then, there should be many brick kilns in the Tang Dynasty, and the bricks can be placed aside first.
Then, the most important thing is cement!
Baking cement seems to be very simple.
Among them, the most important are limestone, clay, iron ore, and coal.
All of these things are easy to find. Fortunately, limestone has been used to build houses since ancient times.
It seems that the half-cave buildings of ancient humans all had lime added in the middle.
Even the adobe walls of the village houses in Lijiazhuang are first plastered with fine yellow mud, then a layer of grass-mixed mud, and finally plastered with lime.
After spending the whole morning carefully sorting out the materials needed to build a house, Li Xuan couldn't help but feel excited. There was a lot of potential for this matter.
Immediately, he asked Cheng Chusi to call over Ying Qi and Wu Fu, who were making iron in the forge.
"Ying Qi, Wu Fu has met the master!"
"You two don't need to be polite!"
Li Xuan said with a smile on his face.
"I don't know, Master asked me to come here, but what are your instructions?"
Now, Ying Qi and Wu Fu are very satisfied.
Although he is still stationed in Lijiazhuang, supplying the two small craftsmen called by Li Xuan.
However, because he learned some knowledge from Li Xuan every day, he had already won the attention of the general prisoner Gongsun Nian.
As long as Li Xuan no longer needs these two people, once he returns to the prison, he will become the master craftsman in the prison!
"I wonder if you two know how to burn lime?"
Li Xuan asked.
"Master, you look down on people. As long as they are craftsmen, they can bake lime!"
Ying Qi and Wu Fu were startled and said quickly.
"So good!"
Li Xuan was delighted, "So you two also know where the most limestone is?"
"Don't worry, Master, limestone is everywhere in the mountains. However, you need to pay attention when selecting limestone. The cyan limestone is relatively pure in quality, while the yellow-white limestone contains impurities such as clay and minerals."
Ying Qi and Wu Fu said: "However, there is already a lime kiln for calcining limestone in the Xishan area. If you need lime, you can buy a large cart for ten cents!"
"I don't burn lime!"
Li Xuan slowly shook his head.
"Does Master want it?"
Ying Qi and Wu Fu were stunned for a moment, full of doubts.
"I want to bake cement!"
Li Xuan said slowly.
"cement?"
The two of them looked confused again, "May I ask Master, what is cement?"
"cement……"
Li Xuan opened his mouth and was also stunned.
How should he explain something like this that has never happened before?
However, Ying Qi and Wu Fu's expressions changed slightly in response to Li Xuan's hesitation, thinking of what their boss, the prisoner Gong Sun Nian, told them a few days ago.
You must not inquire about things that you don't want to reveal without authorization, let alone reveal them. Otherwise, your head will fall to the ground at worst, and your whole family will be harmed at worst!
They all shuddered, and hurriedly raised their hands and said, "I am the one who talks too much, please don't blame me!"
Forehead!
Seeing this, Li Xuan couldn't help but be stunned.
He smiled bitterly and said: "This is my first time firing this thing, so I don't know how to explain it to you two. However, you two will understand it once it is fired!"
"I see!"
Ying Qi and Wu Fu couldn't help but let out a sigh of relief when they heard that it was not an item that needed to be kept secret.
However, his face soon became full of curiosity.
“I don’t know how to bake cement?”
“It’s very simple to bake this thing!”
Li Xuan thought about this all morning and probably came up with the simplest firing method.
Therefore, it is very smooth to say.
"Burning cement is limestone. The clay is ground into flour, and then the clinker is calcined. Finally, the clinker and the slag left after ironmaking are ground together to grind it into powder, which is cement."
"So Easy."
After hearing this, Ying Qi and Wu Fu's eyes lit up.
"Exactly!"
Li Xuan nodded slightly and continued: "However, I need a lot of cement to build houses and build roads, so I will have to trouble you two in the next period of time."
“Building houses versus building roads?”
Hearing this, Ying Qi and Wu Fu were stunned again.
"It's about building roads and building houses!"
Li Xuan nodded affirmatively, "As for how to build it, you will know after you two bake the cement!"
"As for what materials you need, you can just ask Cheng Chusi, Gao Ming and others to buy them. There are several large boxes of money in the side room of my courtyard. You two can buy them as you like. Even if you run out of money, you don't have to worry.
You’ll make a lot of money again soon!”
"I'll understand later!"
Ying Qi and Wu Fu had heard Li Xuan's arrogant words many times.
However, every time, the corners of my mouth twitched.
Afterwards, the two of them summed it up and told Cheng Chusi all the materials they needed.
As for going directly to Prince Li Chengqian?
Although the young master of the Cheng family looked much more fierce than the kind-faced prince, they were still willing to communicate with Cheng Chusi.
Soon, Cheng Chusi found Li Chengqian and discussed it. They opened the side room in Li Xuan's courtyard and took out two pieces of money.
"ah?"
However, what they didn't expect was that when they turned around, they saw Li Yuan standing quietly behind him with his hands folded, his face full of curiosity.
"Sanlang is going to make trouble again?"
"Back at Aweng, Master asked Ying Qi and Wu Fu to bake an object called cement to prepare roads and houses!"
Li Chengqian quickly reported the incident.
"Um!"
Li Yuan glanced at the two coins in the hands of several people, nodded slightly, and left unsteadily.
Cheng Chusi, Li Chengqian and others were left standing in a daze for a moment, looking at each other. Then they quickly picked up the two coins and ran out of the village.
No matter what, Master's affairs are the most important.
Now, because Li Xuan would come up with some new ideas from time to time, Li Chengqian, Cheng Chusi and others already had a way to deal with them.
Every day, a steward from one family would wait outside the village.
As long as Li Xuanyi has any needs, he can directly arrange for the steward to purchase them.
As for Li Xuan, he only needs to pay.
…
Once the cement is gone, all that’s left is the steel bars!
Sitting in the room, looking at the paper in front of him, and thinking for a long time, Li Xuan ran back to the forging workshop and asked Ying Qi and Wu Fu.
Half an hour later, he returned to the house with a thoughtful look on his face.
Li Yuan, on the other hand, had been sitting in the room, quietly watching Li Xuan running around.
With Ying Qi and Wu Fu around, Li Xuan found that he wanted to invent something, and it became very simple.
The best expression is the steel thing. Ying Qi and Wu Fu are simply textbooks, and they can answer any question.