Judging from Miao Yan’s appearance, it is estimated that preparations will start in December at the latest, and rammed earth will start to build roads in the spring at the latest.

After Liu Mingqi returned, the first thing she did was to start writing about what she wanted to experiment.

It's not cement, but three-combined soil.

Cement requires ultra-high temperatures to burn raw materials into powder, but today's fires cannot reach it.

Moreover, cement is a killer weapon when it comes out. By relying on it to build roads, the roads of the empire can not only be connected in all directions, but also be durable, reducing a large amount of transportation losses.

It has an obvious effect on combat, quelling chaos, or developing trade in various places.

This can directly subvert ancient history.

So Liu Mingqi is not afraid to take it out now, so as not to suspect the court's officials to suspect him again.

Say it straight.

Miao Yan is likely to be one of the deputy ministers after the crown prince ascended the throne. The important officials who are focused on training will definitely clear the obstacles for the crown prince.

Liu Mingqi is doing business alone, and she keeps inventing shocking things that make the people admire and recite. It would be strange if Miao Yan doesn’t nail him to death!

Anything you do must be stared at by people like Miao Yan. Do you think Liu Mingqi is creepy?

Therefore, it is necessary to keep a low profile.

As a time traveler, you don’t have to show off in everything, just live a happy life.

Things like Sanhe Tu are more suitable for Liu Mingqi to put forward opinions on the reconstruction of Yu Street.

In fact, the Qin Zhidao and the official roads of the Dakang Dynasty used mixed soil, which were not necessarily Sanhe soil, but the effect was not worse than Sanhe soil.

A better Sanhedi soil can last for three to five hundred years, but Qin Zhidao has been used for nearly two thousand years, which is a miracle.

The methods of using soil in the official road, various ingredients, manual process requirements, etc. are all recorded.

Liu Mingqi now wants to use the three-dimensional soil he knows to mix with the Dakang Dynasty's mixed soil method to see if it can have a better effect.

As the name suggests, Sanhe soil is soil composed of three materials, and the best results are lime, clay and fine sand.

If you are a little more particular, add a certain amount of glutinous rice juice or brown sugar.

The earthen buildings in Fujian in ancient times were extremely solid and never destroyed for thousands of years.

Many people say that when they were building, they not only used Sanhedi soil, but also served with brown sugar, egg white and glutinous rice, which was why they had such an effect.

There is also a proverb in Hakka that "for one bowl of pork and another bowl of three-metal soil".

But this should be a misinformation.

Fujian is already mountainous and has never enough food to eat. Otherwise, there wouldn’t be so many Fujianese going to Nanyang to struggle to live without their hometowns.

Can't even eat enough, and can you use valuable resources such as egg white and glutinous rice to build a earthen building?

You know, the whole Fujian is not one or two earthen buildings. There are more than 20,000 earthen buildings in Yongding alone. How many egg whites and glutinous rice have to be consumed in total?

However, brown sugar is a bit possible. After all, Fujian is a famous sugarcane planting site and produces a large amount of sugarcane.

Boil cheap sugar cane into brown sugar to increase the viscosity of the three-metal soil, which is more feasible and reasonable.

Let's use another example.

Is Zhu Chongba rich? Is anyone there?

But he still borrowed Shen Wansan's money to use glutinous rice and tung oil to increase the firmness of the Jinling city wall and to make the city wall stand for hundreds of years.

But there was only one city wall like this in the Ming Dynasty, and even after Zhu Di moved the capital to Yanjing, he did not build it again.

The reason is that the construction of the city walls is too expensive, and even the emperor felt that he could not afford it.

Let’s not talk about the earthen building.

Although this statement is incorrect, three ingredients: egg white, glutinous rice and brown sugar combined with three-piece soil will definitely greatly increase the degree of solidity.

With the addition of the tung oil used in Mingcheng Wall, Liu Mingqi can mix more materials.

But how to match the best is another knowledge.

There are thousands of matching methods involved, and it is impossible to study them well.

But Liu Mingqi also has a way to be lazy. Didn’t he have a new apprentice recently?

After writing a general plan, I called Wu Yeshuang over and let her act as the "second tool for the disciple of Liu's family". It is completely reasonable!

...

After working hard for two days, Liu Mingqi finally wrote the principles of Sanhedi and the functional principles of three auxiliary materials in a small notebook and handed them over to Wu Yeshuang who rushed over.

Wu Yeshuang was waiting for Liu Mingqi to teach her how to create a treasure to break the gate of hell, but she didn't expect that the first one she got was "The Strongest Three-Combination Land in History".

After watching for a while, Wu Yeshuang raised her head expressionlessly: "It turns out that this is still an experimental subject, there is no real thing at all? Are you planning to let me do the matching ratio?"

Even in ancient times, it was normal to use various ratios to debug something.

For example, Dakang porcelain, which is best-selling in the known world, has won the crazy pursuit of countless consumers because of its ever-changing colors and textures.

Even the king of Cebu, which is as poor as Du Lifeng's family, has three complete sets of high-end porcelain from the Dakang Dynasty, which are used as treasures for the country, not to mention the craziest small overseas Japanese countries. The props that everyone is richer are porcelain.

It is said that more than 20% of porcelain is sold there every year, which also enriches the commercial tax results for Dakang.

Liu Mingqi smiled and said, "Sister Shuang, you lack some common sense in physics, so you can practice your hands first with the three-way soil, and then do it.

Didn’t I tell you before, it will take at least two or three years to learn it? This is one of the processes.”

"Oh well!"

Solving the Gate of Hell is Wu Yeshuang's long wish, especially when she has clearly seen hope, she will not give up.

Since Liu Mingqi said that, she started to learn how to do it. If it didn't work in the end, she would blow up the stinky brat's dog head.

Seeing Wu Yeshuang so straightforward, Liu Mingqi also had a slight head.

He told Wu Yeshuang before that he would teach her to make a bitter bomb, not a joke.

The first and most important thing when doing physics and chemistry is to have concentration.

How can you concentrate on researching without concentration for decades?

Even if you don’t have enough intelligence, you are just a tool person, you will be a powerful tool person.

A powerful tool man is crucial to an inventor.

When Tesla had a lot of tool people like Edison, would he be cheated so badly?

Wu Yeshuang is such a person. He is not only organized in his work, but also willing to endure hardships and has determination. It is most suitable for Liu Mingqi to teach physics and chemistry knowledge.

As for teaching her picy and explosives for two or three years, it depends on what the statement is.

If you just follow the map and just teach her how to do it, you can understand the process in two or three months.

But if you want to learn physics and chemistry from scratch and truly understand the principles, it will not work in less than three to five years.

Since Wu Yeshuang knew the purpose of Sanhedi soil, Liu Mingqi asked her question: "Sister Shuang, do you think Miao Yan can be made this time?"

"have no idea."

Wu Yeshuang shook her head, "If it were someone else, she would probably not have the perseverance and ability, but if she were Lord Miao, she might be able to succeed."

This is the power of the character Miao Yan has shown for decades.

If he had not been his always strong and serious behavior, he would never be perfunctory. No matter what he did, others would have a skeptical attitude first.

After all, it is absolutely impossible to just talk about the Yu Street, which is thirty miles long and five hundred steps wide.

But when Miao Yan said it, everyone knows that he will do it seriously.

Even if it is not successful, it will definitely not be his subjective reason.

Besides, Miao Yan is not the kind of cruel official in the traditional sense, he is still a capable official.

It is impossible for a simple legal official to manage a city well. They usually do specific affairs of the Dali Temple and the Ministry of Justice.

Miao Yan has been in the Imperial Court, the largest town in the empire for so many years and is deeply loved by the people. He is likely to become the first person to become the prime minister in the past twenty years. He is not a boast of being known as the "No. 1 official of the Legal Family".

"According to Lord Miao's personality, it may not take long before he will start to do it." Liu Mingqi said: "Sister Shuang, you only need to be responsible for how to arrange the experiment. All the equipment and equipment are provided by me. I will send an assistant to you, or you can find a place to be a laboratory by yourself. You can just find an assistant for all the expenses."

Wu Yeshuang laughed silently, "I am the same as Fang Lei, and I have unlimited money use rights?"

Everyone has heard of Fang Lei’s hot air balloons and knows how much it costs.

Liu Mingqi nodded without hesitation: "Yes, as long as you have a need, anything can be done."

"good."

Wu Yeshuang patted Liu Mingqi on the shoulder with satisfaction, "You are not bad, and you are willing to spend money to make these useless things."

If Wu Yeshuang came alone, there might not be any results in three to five months.

But if you want her to bring a group of people with no restrictions on funds and materials, and dozens of groups start experimenting at the same time, the speed will definitely be accelerated countless times.

So in this regard, it is better to have money, and it is better to be willing to spend money without hesitation.

"Whether it is useful depends on what you think." Liu Mingqi said, "What if it comes in handy one day?"

Wu Yeshuang smiled, obviously thinking that Liu Mingqi was joking.

Hot air balloons are a boring thing.

Sanhe soil is barely practical, but what is the use of making a Sanhe soil that can build roads?

Can you use these to build a fortress and then you can move in?

If the clans dare to do this, they will definitely be impeached by the censor.

She felt that Liu Mingqi was a young man with wild imagination. On the basis of being rich, she liked to invent various things so as to play her genius as possible.

Little did Liu Mingqi say that with the foundation of Sanhe soil, it would be much easier to make cement in the next step.

The difference between cement and sanheso soil is not very big.
Chapter completed!