"I have seen a lot of lime, and I have used a lot of people before, but no one has ever been able to build such a long way to use lime in three days. You should talk about your cement."

"Yes," Han Du thought for a while and continued, "Xiaguan's original idea of ​​making cement came from lime." Han Du didn't dare to say that he knew there was cement, but instead found a reasonable excuse.

"When the official saw that lime could be used to build stones in the sand, he thought, since lime had a certain bonding ability and could be built together, is it possible to make something that was dozens of times more bonding than lime? And since it could be used to build stones, can it be used to bond sand into a stone? After all, there is not much difference between sand and stones, and sand can also be regarded as tiny stones."

When Tang He listened to Han Du's words, he felt that the more he listened, the more he made sense. And the reason was so simple, and so on. But it has been hundreds of years since people started using lime. Why hasn't anyone ever thought about it like Han Du before?

"Later, Xiaguan asked craftsmen to make various attempts. Fortunately, this kind of thing was really made by Xiaguan. Because it looked like mud and solidified when it was water, it was called cement by Xiaguan."

Tang He listened to Han Du's explanation and nodded constantly. Suddenly, he saw a gray and white stone on the side of the road that was completely different from usual. He took two steps in three steps, picked it up, showed it to Han Du, and asked, "Is this sand solidified with cement?"

Han Du nodded in a daze. This should be a piece of concrete that fell out when the road was built. It was not noticed by anyone. It solidified into a piece after a long time.

Tang He pinched himself a few times, but he didn't squeeze it, and then he broke his hands hard.

A low sound was heard.

Tang He broke off a piece with both hands, looked carefully at the broken place, threw the concrete blocks onto the ground, patted his hands and sighed, "It's really hard like a stone."

"Your Majesty, this cement is a good thing." Tang He sighed as he looked at the road beneath his feet.

As a veteran on the battlefield, he understands the significance of roads to marching and fighting.

Lao Zhu nodded with a smile.

At this moment, Han Du heard a noisy noise from afar and looked up. He saw a large group of people walking towards here. The group of people were wearing crimson official uniforms. He stood up casually, and his official position was greater than Han Du.

Such movement naturally attracted the attention of everyone present, including Lao Zhu.

Moreover, Han Du also noticed that Lao Zhu, who was smiling just now, now had a gloomy expression in his expression.

People often say that women turn against each other faster than turn over books. But comparing with the emperor is simply not worth mentioning, and an emperor like Lao Zhu who is even more turn against each other will make you even more turn against each other.

Han Du shrank his head, fearing that Lao Zhu would notice him at this time, and was also puzzled, not understanding why these ministers in the court came together?

"I am here late, please forgive me."

All the ministers bowed down.

Han Du and others also bowed again together.

When Lao Zhu faced the ministers' kneeling, his eyes were slightly lowered, and he pondered for a moment: "Everyone should get up."

"Thank you, Your Majesty."

The ministers slowly got up from the ground.

As soon as everyone stood up, an old minister persuaded Zhu Yuanzhang, "If a gentleman does not stand under a dangerous wall, the emperor is a body of gold..."

Unexpectedly, Lao Zhu didn't wait for him to finish speaking, but just looked at the man coldly and waved his hand.

Seeing this, the old eunuch immediately shouted, "Go up! Go back to the palace!"

Old Zhu stepped straight into the car and signaled Tang He and Li Wenzhong to follow.

Seeing this, the old minister could only hold back what he wanted to say, and his old face turned red.

But Lao Zhu was not interested in listening to him at all. After Lao Zhu sat firmly, the car began to turn around and head towards the capital.

Several ministers looked at each other and left helplessly after Lao Zhu's car.

The group of ministers who had just arrived were not finished speaking, and then followed Lao Zhu away again without saying a word.

Han Du watched them go away before he wondered and said to himself, "What's wrong?"

"Sir, the old official just took a closer look and found that the six ministers of the Ministry of Justice have arrived. Maybe something big happened." Seeing Han Du's doubts, Xiong Shi explained with his ears.

Han Du unexpectedly glanced at Xiong Shi, "I can't tell you, you know the Secretary of the Six Divisions. Then why are you just an eighth-rank official?"

To be honest, Han Du, the Secretary of the Six Ministry of Works, knew no one except Xue Gong's Ministry of Works, including his immediate superior, the Minister of Revenue. Although Han Du saw Lao Xue in front of the crowd just now, Han Du didn't think much about it. He only thought that these were just ordinary ministers of the court, and he never thought that it was Qi Zhi, the Secretary of the Six Ministry of Works.

It seems that it is possible that as Xiong Shi said, something big happened to the court, otherwise the six ministers of the Ministry would not have asked Lao Zhu to come together.

Alas, I hope it is not for the Northern Yuan Dynasty to attack the border. Han Du disliked the most. "I would rather be a peaceful dog than a chaotic person." He still liked to live in a peaceful and prosperous era.

After being teased by Han Du, Xiong Shi looked ashamed, "Sir, I was joking. The officials knew them, but they didn't know them."

"Haha, just kidding, don't care." Han Du also smiled and comforted her.

Mr. Huang came over at this time and saw Han Du laughing happily, so he also asked with a smile, "Why are you so happy about me?"

"Ah? It's nothing. Isn't it worth being happy if the road is repaired?" Han Du made a cover and changed the subject.

Mr. Huang was caught off guard by Han Du and had to echo, "Uh? This is naturally worthy of happiness."

"Well," Han Du nodded and instructed Mr. Huang, "You used to say that carbonite transport is inconvenient, but now I have repaired the road for you. You should take it to heart for carbonite mining."

"This..." Mr. Huang was a little embarrassed, "Sir, although the road has been repaired, there are still three miles of land on the road with the quarry. This section of the road is also extremely difficult to walk. Sir, can you repair this section of the road together?"

In Huang Lao's opinion, using the adults' way of building roads, it is not a problem to build three miles of roads.

After all, what he wanted was not the three-meter-wide road that adults built. He only needed to be able to build a small path five or six feet wide, as long as he could allow two people to walk side by side.

In this way, the speed of mining carbohydrate will inevitably increase significantly.

Han Du had a plan in his heart, patted Huang Lao's shoulder and said, "You don't have to worry about this. Although I will not build the last three miles into a cement road, I will build a road in the last three miles that will make you more satisfied."

What other roads can be better than cement roads?

Huang Lao shook his head and couldn't figure it out. But since it was said by the adults, there must be some. After all these days, after seeing what Han Du did, he had unparalleled confidence in Han Du.

When Han Du heard Huang Lao talk about the problem of carbonite mining, he thought of something, or something. When he played games in his previous life, he had entered the mine in the game. At that time, he only had enemies hidden in the mine in the mine, and he had never paid close attention to the fact that there were other things in the mine besides the enemy.

That's the mine cart!

The mines in the game are made according to this real mine, and there will naturally be mine cars everywhere. It is a shooting game. At that time, he used mine cars as a cover to avoid bullets from many enemies.

Looking back now, Han Du saw that there were not only mine cars in the mine cave at that time, but also tracks were laid on the ground.

Since Mr. Huang complains that carboniferous mineral mining is easy and transportation is difficult to come down from the mountainside, can he make a track that extends directly from the mine cave to this cement avenue like in the game?

When making some mine trucks, the craftsmen mine the carbonite and load it into the mine truck, and then directly put the mine truck down from the hillside. The mine truck will slide along the track to the place.

In this way, wouldn’t it save even the trouble of going down the mountain with a carbonite ore?

Not only does it save time and effort, but it also improves efficiency by ten times more than using human backs.

How many carbonite mines can be carried by one person at a time? I think it's only 100 or 200 kilograms.

However, a mine car can carry more than one ton of carbohydrate mines at a time, and a mine car is comparable to ten people, and it is also fast.

It takes an hour to go down the mountain with two hundred kilograms on his back and then walk here.

But how much time can the mine cart take to get here from the hillside? Maybe it doesn’t even take a minute.

The only problem is that steel is required for laying tracks or manufacturing mine cars, and Han Du doesn't have steel now.

Not only did Korean do not, but even the imperial court owns not much steel.

These words are not just talk about it.

With current skills, if you want to make iron into steel, there is only one way, that is, the blacksmith will smash it with a big hammer.

Thinking of this, Han Du almost covered his face in shame.

As a person who traveled to the Ming Dynasty, he thought about making treasure money all day long, but he actually forgot about steelmaking.

Steel is known as the bones of the industrial age. Without a large amount of steel support, no matter what kind of industry, there is no room for development.

When Han Du thought of steelmaking, he felt anxious.

However, no matter how urgent the matter is, it must be handled first.

Several county magistrates worked tirelessly to recruit investors to help Han Du build roads. He couldn't just say a word of thanks, and hurriedly ran back to build a blast furnace and make steel?

In that case, it would also seem that Korean is too utilitarian.
Chapter completed!