Li Shimin

However, fortunately, Li Shimin informed that there are more than 200 glass sheds of the Supreme Emperor outside the city.After a few days, some ministers will be allowed to go to watch and pick.

Now, these ministers are all overjoyed.

Immediately, some ministers bid farewell to their colleagues in a hasty look and ran to the mansion.

Afterwards, the servants of the noble mansions rode horses with letters tightly nestled in their arms and galloped out of the city.

As for Wang Gui, Wang Hui and others, although their faces were full of depression, there was nothing they could do!

……

Chapter 151 Saburo is going to toss again?

And in Lijiazhuang.

Ever since Empress Changsun left with Li Yuan and Li Shimin's concubines and concubines, Li Xuan completely stayed in the bedroom.

In the coming year, when the weather warms up and the permafrost is unsealed, we must start breaking ground and building houses.

Moreover, two layers have to 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 being motivated.

Now, the iron-smelting furnace in the small workshop next to it can easily smelt a thousand catties of pig iron in a day.

At most, I will improve it myself, how to turn pig iron into steel.

After all, when building a house, all the steel bars are poured inside.

As for the bricks!

It seems that he remembered the last time he went to Chang'an City, the gate of the Wang family, it seemed that the walls of the Wang family's courtyard were built with some exquisite strip-shaped blue bricks.

Then, there should be many brick kilns in Datang, and the bricks can be placed aside first.

Then, the most important thing is cement!

It seems to be very simple to fire cement.

Chief among these are limestone, clay, iron ore, and coal.

All these things are easy to find. Fortunately, limestone has already been used to build houses in the ancient human period.

It seems that the half-cave buildings of ancient humans were filled with lime in the middle.

Even, the adobe walls in the houses of the village households in Lijiazhuang are first covered with fine yellow mud, then a layer of grass-mixed mud, and finally plastered with lime.

After spending the whole morning sorting out all the materials needed to build the house, Li Xuan couldn't help jumping with joy. There is a lot to be done about this matter.

Immediately, he asked Cheng Chusi to call Ying Qi and Wu Fu, the iron smelters in the forge, over.

"Ying Qi and Wu Fu have met Master!"

"You two don't need to be polite!"

Li Xuan said with a smile all over his face.

"I don't know if Master told me to come here, but what are your orders?"

Now, Ying Qi and Wu Fu are full of ambition.

Although they are still stationed in Lijiazhuang, they supply the two little craftsmen that Li Xuan orders.

However, because he learned some knowledge from Li Xuan every day, he had already won the attention of the general supervisor, Gongsun Nian.

As long as Li Xuan no longer needs these two people, once they return to Jiang Zuo Prison, they will be masters in Jiang Zuo Prison!

"I wonder if the two of you know how to burn lime?"

Li Xuan asked.

"Master, you underestimate people. As long as you are a craftsman, you will burn lime!"

Ying Qi and Wu Fu were startled, and said hastily.

"So good!"

Li Xuan was delighted, "Then you two also know where the most limestone is?"

"Master, don't worry, there are limestones all over the mountain. But when choosing limestone, you need to pay attention. The quality of blue limestone is relatively pure, and 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 west mountain. If Master needs lime, you can buy a large cart for ten renminbi!"

"I don't burn lime!"

Li Xuan shook his head slowly.

"The master wants it?"

Ying Qi and Wu Fu were taken aback for a moment, full of doubts.

"I want to burn cement!"

Li Xuan said slowly.

"cement?"

The two looked puzzled again, "Dare to ask Master, what is cement?"

"cement……"

Li Xuan opened his mouth and was also taken aback.

How could he explain something that had never been seen before?

However, regarding Li Xuan's hesitation, Ying Qi and Wu Fu's expressions changed slightly, thinking of what their boss, the future supervisor Sun Nian, told them a few days ago.

This person who doesn't want to disclose things must not inquire without authorization, let alone reveal it, otherwise the head will fall to the ground, and the whole family will be affected at worst!

Qi Qi shuddered, and hurriedly cupped his hands and said: "I was the one who was talking too much, so please don't blame me, Master!"

Forehead!

Seeing this, Li Xuan couldn't help being taken aback.

With a wry smile, he said, "This is also the first time I've fired this thing, so I don't know how to explain it to you two. However, you two will know when it's fired!"

"I see!"

Ying Qi and Wu Fu couldn't help but heave a sigh of relief when they heard that it wasn't something that needed to be kept secret.

However, soon he was full of curiosity.

"I don't know how to make cement?"

"It's very simple to fire this thing!"

Regarding this, Li Xuan thought about it all morning, and probably came up with the simplest firing method.

Therefore, it is very smooth to say.

"To make cement, limestone and clay are ground into flour, and then clinker is calcined. Finally, the clinker is ground together with the slag left after ironmaking, and then ground 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 roads, so in the next period of time, I need to trouble you two."

"Building houses and building roads?"

Hearing this, Ying Qi and Wu Fu were taken aback again.

"It's building roads and building houses!"

Li Xuan nodded affirmatively, "As for how to build it, we will know when the two of you burn the cement!"

"As for the materials you need, you two can find Cheng Chusi, Gao Ming and others to buy them. There are several large boxes of money in the side room of my wife's courtyard. You two can buy whatever you want, even if you run out of money, don't worry. You'll be making a lot of money in no time!"

"I'll wait to understand!"

Ying Qi and Wu Fu had heard Li Xuan's arrogant words many times.

However, the corners of his mouth twitched every time.

Afterwards, the two of them made up their minds and told Cheng Chusi all the materials they needed.

As for going directly to Prince Li Chengqian?

Although the young man of the Cheng family looked much fiercer than the kind-hearted prince, they were still willing to communicate with Cheng Chusi.

Soon, Cheng Chusi found Li Chengqian, discussed it, and they opened the side room in Li Xuanyuan and took out two coins.

"what?"

However, what they didn't expect was that when they turned around, they saw Li Yuan standing quietly behind him with his hands in his hands, his face full of curiosity.

"Saburo is going to toss again?"

"Back to Ah Weng, the master asked Ying Qi and Wu Fu to burn something called cement, which will be used to build roads and houses!"

Li Chengqian hurriedly reported.

"Ok!"

Li Yuan glanced at the two coins in their hands, nodded slightly, and then walked away unsteadily.

A group of Cheng Chusi, Li Chengqian and others who were left looking at each other were stunned for a moment, then quickly took the two pieces of money and ran out of the village.

No matter what, the matter of the master is 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 set of ways to deal with it.

Every day, there will be a steward of a family waiting outside the village.

As long as Li Xuanyi has any needs, he can directly arrange for the steward to buy them.

As for Li Xuan, he only needs to pay for it.

……

Once there is cement, only steel bars are left!

Sitting in the room, looking at the paper in front of him, and thinking for a while, Li Xuan ran back to the forge and questioned Ying Qi and Wu Fu.

Half an hour later, he returned to the room with a face full of contemplation.

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 manifestation is steel. Ying Qi and Wu Fu are like textbooks, they can answer any question.

……

Chapter 152 The Art of Steelmaking

Very early on, there were already blacksmiths who could forge steel.

However, they all use charcoal as fuel.

However, the method is different. The first method is block smelting, which is to use pig iron blocks to forge continuously, and finally to forge steel. However, the production efficiency of this forged steel is low, and the quality of the steel obtained is not very good.

Later, in order to improve the quality of steel, craftsmen invented steelmaking.It is to heat the steel that has been initially tempered repeatedly, fold it and forge it repeatedly.

The hundred-refined knife that soldiers are most fond of is obtained by repeatedly folding and forging a hundred times.

Then, those generals and emperors, seeing the benefits of pure steel, demanded more and more for pure steel, so they forced the craftsmen to invent the use of pig iron to burn and fry in the furnace to obtain better steel.

This is the emergence of the method of frying steel.

In the end, the best method of pouring steel appeared.

But now, the craftsmen of the Military Weapons Supervision are using the method of pouring steel!

The steel pouring method is actually to use high-quality iron ore to smelt high-quality pig iron, and then pour the pig iron that is still in a solution state on the wrought iron, and the pig iron and wrought iron are sympathetic and fused together.

Afterwards, it was repeatedly tempered with a hammer several times, so that the pig iron and wrought iron were completely and evenly fused together, and then the iron was obtained, that is, steel.

However, because of the charcoal poison of burning coal, the craftsmen have no way to overcome it, so they still use charcoal as fuel. In Li Xuan's view, the production efficiency is still very low.