I was watching short videos and was seen by ancient people

Chapter 122: Take you through the process of making cement in 1 minute ([-])

Qin Dynasty.

Qin Shihuang read all the comments, but what made him most curious was the thing called cement.

He really wanted to know how this kind of thing was made, and whether it was really like the one on the canopy, and if it was combined with the bricks, it would be as solid as stone.

If that's really the case, I'm afraid if he built the Great Wall, it would be even stronger.

Qin Shihuang waved his hand and asked the guards around him to greet the Mohist disciple.

In the entire Great Qin, he could only leave this kind of work to the Mohist disciples.

After all, except for the children of the Mo family, there is no one else in the entire Great Qin who can complete such a task.

After the Mohist disciples received the order, they quickly came to the palace.

But after receiving the order, they showed bitterness.

It's another thing that only knows the performance but doesn't know how to make it, so how can they make it.

Before they could worry about it for long, the screen on the sky screen changed and a new video appeared.

[Take you to understand the process of cement production in 1 minute. #production process#cement]

[Do you know what raw materials cement is made of?
Cement is made of limestone, clay, and iron ore powder ground and mixed in proportion. The mixture at this time is called raw meal.

Then it needs to be calcined, usually at a temperature of about 1450 degrees, and the calcined product is called clinker.

Then clinker and gypsum are ground together and mixed in proportion to be called cement. The cement at this time is called ordinary Portland cement.

...]

As the explanation began, various machines appeared on the screen, turning cement raw materials into finished products step by step.

Qin Dynasty.

The Mohist disciples, who were worrying about how to make cement, were very happy when they saw the video on the sky screen.

Then they looked at it carefully, pondering every step and the function of each machine.

They didn't have the machinery on the canopy, but they felt that even with manual labor, they could make the cement.

But when they heard that cement needs to be fired at a temperature of more than 1400 degrees, the Mohist disciples were shocked.

You must know that in their era, although they had the technology to make bronzes, it did not mean that all their hardware facilities could meet the requirements for firing cement.

If it were other tools, they could still find a way to solve it, but the firing temperature required more than 1400 degrees, which directly confused them.

However, this was a task assigned by Qin Shihuang, and there were only two choices given to them.

One is to be beaten to death now, so that he will not be tortured by the orders issued by Qin Shihuang?

The other is to be killed if you fail to complete the task, but there is a glimmer of hope, but the difficulties you have to face will be hundreds of times that of death.

Do they have a choice?No.

In order to survive, they could only find ways to increase the temperature of the fire so that it could meet the standards of later generations for making cement.

Qin Shi Huang agreed very much with the reaction of the Mohist disciples. He felt that these Mohist disciples needed pressure, otherwise they would not be able to accomplish anything.

Only after putting pressure on them will they move forward further.

And if he hadn't put pressure on the Mohist disciples face to face, I'm afraid these Mohist disciples would have disappeared into the vast sea of ​​people.

Han Dynasty.

Liu Che, Emperor Wu of the Han Dynasty, watched a video of cement making on the screen, his face full of sorrow.

Before it appeared, he also wanted to know how this material was made.

But now that he knew it, Emperor Wu of the Han Dynasty Liu Che was worried about what to burn to make the temperature reach more than 1400 degrees?

But no matter what, at least now I know how to make it, and everything else can be solved slowly.So Liu Che, Emperor Wu of the Han Dynasty, issued an order. Which craftsman in the country could solve this problem?There will be a reward of one thousand taels.

Tang Dynasty.

Li Shimin and Minister Yi Zong looked at the cement production method on the sky screen, and they were slightly stunned.

They didn't expect that the making process of this kind of construction artifact could be known on the sky screen.

It's just that the temperature at which cement clinker is fired is not very easy to achieve. You must know that the melting point of iron is only 1100 to 1300 degrees.

But Li Shimin and his ministers did not give up. They directly called the craftsmen and asked them to make cement.

They really want to know if this cement will produce cement if the temperature when firing clinker does not reach 1400 degrees.

They don't care about the quality of the cement, they only care about whether it can be produced under their current conditions?

In their view, by manufacturing this building material one day earlier, they will reduce more food waste.

You must know that when they were making the city wall, in order to make the wall stronger, they used glutinous rice mixed with lime sand to build bricks.

tomorrow.

Zhu Yuanzhang was also very excited when he saw the cement making process on the marquee.

In Zhu Yuanzhang's view, if the Ming Dynasty also had this kind of construction artifact, then the funding for any defensive facilities the court wanted to build would be greatly reduced.

Zhu Yuanzhang, like other emperors, was also very curious about how later generations managed to achieve a firing temperature of 1400 degrees.

Of course, Zhu Yuanzhang did not completely leave it to future generations. He still found the prince and asked him to personally lead people to figure out how to make the cement.

At the end of Ming Dynasty.

Zhu Youjian watched the video about making cement on the marquee and continued to copy his homework.

Regarding the production of cement, Zhu Youjian seemed to be very simple.

Zhu Youjian just copied it and found something wrong. How to make the temperature reach more than 1400 degrees to calcine the raw materials is simply very difficult to do.

But Zhu Youjian is very eager to have this kind of thing. If cement is available, the construction time of the city in Liaodong will be greatly shortened.

And after the soldiers of Liaodong have the city wall, they will also have the ability to defend themselves against the sudden attack of Jiannu.

Faced with the problem of how to calcine raw materials in making cement, Zhu Youjian once again called Xu Guangqi and gave him the task.

Zhu Youjian believed that Xu Guangqi would be able to give him a satisfactory answer.

After receiving the order, Xu Guangqi quickly gathered some people and began to experiment on how to make good cement.

Among them, the person named Song Yingxing was the one Xu Guangqi wanted to name.

In Xu Guangqi's view, Song Yingxing is a talent in this area. With his help, Xu Guangqi believes that he can solve this problem perfectly.

Song Yingxing saw that Xu Guangqi also asked him to join the team on how to make cement, and he did not back down.

After receiving the task, I was thinking about this issue all the time.

No matter whether it was wood or coke, even the coal and stone Song Yingxing did not let go.

In the end, we came to the conclusion that wood is not as good as coke, but coke is not as good as coal?
However, even the coal with the highest flame temperature did not reach the required temperature.

Such a fact was placed in front of him, making him unaware of the problem of temperature.

But it is this kind of problem that is more challenging for him.

Song Yingxing believes that future generations will be able to solve the problem of too high a temperature for calcining raw materials, and he can also solve this problem.

So Song Yingxing started various experiments, testing various burning materials, trying to see which material had the highest temperature.

(End of this chapter)