Chapter 174 Cement comes out!Zhu Gaochi’s magical creation! In fact, it is not that difficult to make good cement.
First of all, their materials are relatively simple and easy to obtain.
Moreover, the Imperial Palace of the Ming Dynasty is right next to it, and it needs to supply the green bricks required for the palace and the construction of the city wall every year, so there is a brick kiln for firing bricks next to the imperial city.
Therefore, Chen Han did not set up a separate brick-burning factory in his own engineering college, nor did he set up a cement-burning factory in his own engineering college.
Instead, he took his students directly to the imperial brick-burning factory near the imperial city.
After Chen Han explained what he wanted to do, the craftsmen were angry.
"What, smash the fired bricks again?"
"Sir, you can't do this. It took so much trouble for us to bake the bricks. Why are we smashing the good bricks?"
"You young people are so good at other things, why do you want to smash bricks?"
"Yes, the bricks we have worked so hard to make cannot be thrown away like this."
As he said this, many people came out to stop him.
Chen Han wanted to make a bet with the craftsmen at this time.
"Brother craftsmen, if we can come up with a better clay than glutinous rice mortar today, just give me your word of approval. If not, we will compensate you ten times for how many bricks we smashed today!"
When the craftsmen heard this, they thought to themselves, the bricks are not ours anyway, you are members of the royal family, so you have the final say.
So they all agreed.
Of course, when Chen Han said that he wanted to create so-called cement, a stronger adhesive than the most sophisticated glutinous rice juice and plaster they were using now, everyone let out a sigh.
Especially the craftsmen who have been working as masons here for decades are full of disdain.
To be honest, they really admire Chen Han's reforms.
They also admired Chen Han and his colleagues for their courage in fighting so many opponents to the death, even if human lives were involved, they were not afraid at all.
After watching the scene where Zhu You stewed the steak, I knew that if Shen Liqian hadn't blocked it at that time, it would have been Chen Han who died.
Even so, he is not cowardly at all.
This is enough to represent the courage of people like them.
But it doesn't mean that it can create a more powerful adhesive than they have ever seen.
So the craftsmen saw the things that Chen Han and the others were tinkering with, and watched Chen Han sifting through them with his students and craftsmen from the School of Engineering.
There were also hundreds of craftsmen brought back from the Japanese slaves, who were breaking bricks, and they couldn't help but smile.
"Have you heard? Master Hou is going to create a bonding soil that is even more powerful than the glutinous rice juice and plaster we mixed together."
"How can there be such a thing? Aren't we using the best since ancient times? Glutinous rice juice and mortar are things that many people dare not use. Only the royal family dared to use it when building houses and city walls, and it was affordable. "
"Who says it's not the case, but people dare to say such things."
"Even Lord Pinglu can't do it, right?"
"Then maybe he really has this ability!"
Some people think that the spinning jenny and shuttle loom they built are not that powerful, but they still built them, right?But don't underestimate these young people.
When several old craftsmen gathered around and watched Chen Han and the others tinkering there, they felt more or less contemptuous of them.
After all, this is their appearance. Even if someone says this, don't look down on it, but everyone still rolls their eyes.
As the saying goes, there are specialties in the arts, and they think they are the ones who have found the most suitable method, so they can't look down on Chen Han and the others at all.
And Chen Han didn't bother with them and led someone to carry out the bricks.
Then under everyone's gaze, he picked up a hammer and started smashing the newly fired bricks into pieces.
Although this process was very mechanical and slow, with the concerted efforts of hundreds of students and craftsmen, hundreds of kilograms of powder were quickly produced.
Although this thing was really inefficient and made everyone covered in ashes, it didn't make Chen Han and the others care at all.
This actually made the craftsmen watching the fun look funny.
They had only heard that the princes were well-dressed and well-fed, enjoying the best things in their high-walled mansions.
But I didn't expect that Chen Han, the Marquis, would come to the factory in person.
He personally led his students and picked up a big hammer to smash the stone bricks.
I don't understand what they are going to do.
What surprised them was that after smashing it, they had to sift it through a fine sieve to select the finest dust.
Seeing these people playing house, many craftsmen shook their heads and couldn't bear to see such a scene.
Many people even felt distressed. What a sin. The bricks that had just been fired were smashed to pieces, so why bother burning them? You can just play with water and mud.
Of course they didn't know that these bricks had actually changed their properties after being calcined.
Only then can it truly become a medium pozzolanic cement that can be mixed with other materials to make it.
After sifting out the powder, Chen Han pulled the several hundred kilograms of powder aside, added the prepared lime and mixed it, then added water and mixed well.
Then, under the eyes of all the craftsmen of the Royal Brick Factory, a wall was built.
Of course, the craftsmanship of these masons has never been as good as these, and the walls they built are also crooked, but it does not matter.
Chen Han just wanted to test the effect of these volcanic ash cements fired by himself.
Time passed little by little and it was the next day.
Chen Han and the others came over again. While everyone was holding their shoulders and watching the excitement, after the cement dried, Chen Han and the others stepped forward.
Then Chen Han was seen kicking the wall hard several times, which shocked all the craftsmen.
Chen Han can be regarded as a tall man, and the big guy can see the few kicks he made. He didn't hold back at all, but kicked forward firmly.
But the wall that was joined together did not fall apart, but was solid.
At this moment, everyone's eyes widened.
The students in the School of Engineering started to get excited.
Especially the five of them, Zhu Yunxi, were all gray and gray, but they did not hide their excited eyes.
Their husband did what he said, and he had created something new.
And this new thing is so simple to make. Just crush and sift the fired bricks to form a fine powder, then add lime and water and mix them together.
You can glue bricks into one piece, even if you have been a mason for more than ten years.
Even watching from the side, my eyes widened and I couldn't believe it.
This is beyond their imagination.
Looking at Chen Han, they were thinking in their hearts, are they really a group of scholars? Why are these scholars better than us?
Of course, they soon understood that this trick must be memorized, because if they learn it, they may be able to use it in the future and become a powerful craftsman.
After Chen Han saw that he had made this cement, he felt so excited that others could not imagine.
Chen Han has said before that he was a blogger who conducted small experiments to restore ancient technology in order to conduct live broadcasts.
So he once made a series of programs about time travel guides.
It is precisely because of the various manual exercises in those small experiments that his hands-on ability is quite strong.
That’s why we were able to make the spinning jenny, the flying shuttle loom, and hand-made glass, as well as grinding concave and convex lenses to make now, it is made into cement.
The emergence of cement can be said to be the first modern industrial product in his true sense as a time traveler.
Although he is not very qualified now, as he said, it was enough in ancient times, especially in the Ming Dynasty.
It's enough. You can think of better ways in the future.
That’s something to think about in the future.
After Chen Han came up with such a plan, he immediately dusted himself off and said, "Now you can see, this is the cement I told you.
Your husband has created something new. "
Then he looked at the craftsmen, "Brother craftsmen, you should be convinced now.
I said that I will definitely be able to come up with these things, and I will definitely convince you. "
The craftsmen were really convinced by Chen Han now.
They really didn't expect that Mr. Hou was not only smart, but could also do his own craftsmanship so well.
You must know that you and others have been immersed in this industry for more than ten or twenty years.
But no one has done it so well.
I really can’t accept it.
Chen Han explained: "After this thing is dried, it is definitely not afraid of the sun and rain.
Now it is only used to build walls, but later it can be used to build roads, which will be even more powerful.
The craftsmen I brought back had rich experience in road construction, so we first hardened every road in the engineering college.
Let everyone see how powerful our road is.
But now, there is a big thing to solve. "
Zhu Gaochi and the others were also disgraced, but the expressions on their faces were very excited, "Sir, there is still something important to solve."
Chen Han smiled, "Did you notice it when you were smashing bricks with me just now?
If you use a hammer to crush these bricks, how slow will it be? "
Zhu Gaochi and the others laughed, "Of course, I just wanted to suggest to you, sir, that we smash it here with a hammer for a long time before we get about a hundred kilograms of powder.
It would probably be much faster if we got a donkey.
Moreover, they are all big animals, so they must be much stronger than us. "
Chen Han smiled: "It's too slow to use a donkey to grind the mill. Someone needs to put the broken bricks in front of the mill.
And there is no guarantee that it can be done like grinding grain.
So I leave this difficult question to you.
In the past few days, I have been thinking carefully about how to combine the hydraulic waterwheel to create an automatic mechanism that can crush bricks and screen them. "
After Chen Han explained, he left with everyone laughing.
Zhu Yunxi and Zhu Gaochi, especially the students from the School of Engineering, squatted on the spot and looked at the powder on the ground, looked at the cement made by Chen Han, and thought about the method Chen Han said and fell into deep thought.
Chen Han sat on the carriage. After returning to the mansion, Princess Jiangdu and the servants in the mansion saw Chen Han's disgraced face and hurriedly asked Chen Han what he was doing. And when Chen Han told about the good things he had made, even Princess Jiangdu, who looked at Chen Han's disgraced face, was very excited.
"Then have you told Grandpa Huang about this news?" Princess Jiangdu asked.
"I've already sent someone to notify you. Don't worry, they all know. I'll go to the study to write out the cement ratio in a moment. You can help me go to the Invention and Patent Office of the Ministry of Rites to apply for another patent for this amount."
Seeing that her husband was so concerned about the invention patent, Princess Jiangdu quickly replied: "Okay, okay, go and have a rest. Look, you are covered in ashes."
Chen Han took a shower and changed clothes, and it was already dark. He had been busy all day, and he took his students there to smash bricks for most of the day. He was also exhausted.
So he went to bed with Princess Jiangdu early.
Five or six days passed in a flash.
After Chen Han was busy with other things, he just returned to the School of Engineering when he saw Zhu Gaochi trotting up to him: "Sir, sir, we took out that thing according to your instructions."
Chen Han was stunned for a moment: "So fast?"
"Of course, sir, you told me. You can go to the backyard and take a look."
Under the leadership of Zhu Gaochi, Chen Han came to the backyard.
Before I even got close, I heard the sound of water flowing and rattling.
The sound was very much like the sound of a stone mill grinding something, and also like the sound of a water conservancy waterwheel turning.
The reason why Chen Han established the Engineering College on the edge of the Qinhuai River was that he could actually use the water flow of the Qinhuai River to build mechanical tools.
Since the Qinhuai River is a river in the south with abundant water and rarely freezes in winter, it is quite rich in water conservancy resources.
There is no need to worry that the water will be cut off one day, and now seeing Zhu Gaochi and the others so excited, Chen Han is also looking forward to it.
When he went over to look at it, he was really surprised.
What appeared in front of Chen Han surprised him.
It's a combination of four things to be exact.
Dams, stone mills, hydraulic rollovers, and hand-operated windmills for sifting grain in rural areas.
The specific working principle is that the waterwheel is driven by the impact of the water flow accumulated in the dam, and then driven by the gears, the stone mill weighing several hundred kilograms begins to rotate.
The ground bricks fall onto a leather conveyor belt below, made of deerskin.
The conveyor belt is connected to the pouring funnel of the hand-operated windmill, and a gear is added to the handle of the hand-operated windmill, which is connected to the bearing of the water-powered windmill. When the waterwheel rotates, the handle also rotates.
After the broken bricks enter the hand-operated windmill, the wind force is used to screen out the thickness.
The fine powder is blown out from the rear port of the windmill and is covered by a big cloth bag. When the dust is full, the big bag can be removed and replaced with another one.
The coarse broken bricks come down the slope, enter the conveyor belt, and return to the stone mill to continue grinding.
Good guy, Chen Han was surprised at the stupidity of these young people's heads when he saw it.
Chen Han couldn't help but ask: "Whose idea was this?"
Zhu Yunxi stood up: "Sir, this is the idea of all of us.
We first found that no matter how we did it, collecting and subdividing it was the most troublesome work, so we thought of the windmill that sifted millet.
Because wind power is used to sift the size, the dust is much lighter than chaff and easier to sift out, so we tried it and found that it was pretty good. "
Zhu Gaochi then came forward and said: "Then we thought about what Mr. said, we must save manpower and material resources. The most efficient way to save manpower and material resources now is water power.
So we tried to connect the stone mill and the waterwheel together, as did the hand-operated windmill. Unexpectedly, it really worked. "
Zhu Youdou also stepped forward and said: "As for the conveyor belt, we asked the tailor to sew and tan the deerskin. We have tried the furs of other livestock, but the transmission effect is not as good as deerskin."
Zhu Shangbing said: “After putting all these together, and after some hard debugging, I finally came up with a machine that doesn’t look very good, but has complete functions and high efficiency.
This machine only requires two or three workers and can crush two thousand kilograms of broken bricks in one day. "
Chen Han was shocked, this is a ton...
(End of this chapter)