After listening to Zou Yu's introduction, everyone was stunned, thinking about how incredible it would be to build such a large reservoir in the mountains.

"It can be done, but this project is too huge, and the key is that if you want to build such a high dam, you need too many stones, and how to pile it up!" Li Chun frowned.

"At this point, Young Eunuch Li can rest assured that the craftsman will burn a material, mixed with sand, and ice stone (gypsum) can form something that is as hard as a stone! It can be used to build dams! Zou Yu explained.

"What... What the! And this material! Li Chun was surprised and asked in amazement.

"Yes, in order to study the glass and the new porcelain, we have taken a lot of ores and fired them separately or in mixture, and we have found many interesting things! The best is glass that is more transparent than glass, and there is this material, I call it cement!

The only thing that limits us now is how to fire in large quantities! Therefore, it is best to look for a place to build a reservoir and improve the firing method at the same time! In addition, the ore must be mined in large quantities!

When the preliminary work is almost done, you can start building! Zou Yu rubbed his forehead and said.

The appearance of cement is an unexpected surprise, which is also the result of the excellent treatment he gave to the craftsman as a supervising craftsman! The semi-forced craftsman as a prisoner, along with his family, brought Jinyang, although he was a little resistant at first, and when he really settled down, he found that life was much better than before. The most important thing is that feeling of being valued, which is impossible to ignore.

A lot of manpower and money were sprinkled down, constant experiments, all kinds of ore, dirt burned for months. Zou Yu's original intention was just to find out the composition and properties of different ores so that they could be studied in depth in the future. In addition, he wanted craftsmen to fire fine porcelain from the Ming and Song dynasties.

The current porcelain, mainly blue and white, the white porcelain in the north and the celadon in the south, are the most numerous and popular; As one of the most exported commodities, Zou Yu will definitely not let go of porcelain.

Of course, this is also a helpless move, if you want to talk about foreign commodities, that is silk and tea. But the north itself does not produce silk and tea, and even if there is a little, it is not enough for its own use. Therefore, the potential of porcelain can only be exploited!

Although the world is turbulent, the foreign trade of merchants has never stopped, after all, the profits in the middle are very large, how can a family with a lot of strength not make money. Not only did they want to make money, but because of the war, they raised the price even higher.

The investment pays off, and the cement is fired unintentionally. Not only that, looking for ores, classifying statistics, and summarizing uses, but also specially arranged a few Zou clan elders to be responsible. This is the career that can be passed down from generation to generation and celebrities!

Not to mention how much impact these things will have on future generations, first of all, you can benefit yourself, and as long as you find one or two useful ores, you will be the first to promote and use them, which cannot be avoided in the history books. Patriarch Zou Wenchang listened to Zou Yu's explanation, didn't say a word, and personally led people to sit in the research institute.

One of the current research directions of ore is mineral fertilizer, to observe whether minerals are useful to plants and harmful to soil; The other is dyes, how to use the color of mineral doppelgangers as dyes; As for how to add clay to fire porcelain, how to develop minerals such as saline.

Zou Yu's biggest dream must be gunpowder, but that thing really doesn't know the formula and mix ratio, just remember to ask for saltpeter and charcoal! The point is, this thing is dangerous! He will never do the experiment himself, so he can only leave it to find someone to continue the research when the time is right.

"If there is such a material, there must be no problem!" Li Chun nodded vigorously and said.

For being able to participate in such a huge project, no one will refuse, especially as a craftsman, this is like a military general sealing the wolf, this is the highest dream! Hearing that Zou Yu asked Li Chun and the three of them to be in charge of this matter, the Yan Lide brothers all showed envious eyes.

Fortunately, the two brothers are not the kind of narrow-minded people, and they know that there are enough things in their hands, so they are not jealous.

"Now the most important thing is the output, whether it is iron ore, coal mine, or kiln mouth, it has reached the limit! The miners, plus the mill workers, the people who transported them, and the ancillary industries, numbered almost 100,000!

Feeding so many people is already the greatest capacity of the imperial court, and it can't be increased, after all, you still have to support the soldiers who guard all over the place! So the main thing to do at the moment is how to increase production. Zou Yu said with a headache.

He once again hated Yang Guang in his heart, after many years of conscription and labor, coupled with the war, the population of the north had really decreased too much. It can be said that in addition to the vicinity of the county seat, in a farther place, just like in Buyeo City, there are no people for hundreds of miles.

"Xiaguan do his best!" The three of them arched solemnly.

"There's no rush in this matter, you just came, find out first, it's not too late to start!" Zou Yu was relieved that he understood the truth of being too late, so he didn't put pressure on Li Chun and the others.

Generally speaking, the current development has been relatively satisfied, and most of the work has begun to use equipment, which is much more efficient than the original simple manpower.

Under the rule of Zou Yu, it was possible to complete the integration in half a year so easily, and also completed the cultivation for two main reasons, the first is that when Fuyu City went to Liaodong, it laid the foundation, and with experience, basically the routine can be moved over, not to mention the support of seeds and farm tools.

Iron tools were used extensively in agriculture, and undoubtedly increased efficiency. Another point is that there are many cattle, and many battles have captured a large number of cattle and horses, which are used in agriculture and transportation, which is another important reason.

Under the entire rule, there were only 20,000 cavalry in Liaodong, 5,000 in Yanmen County, 5,000 in Jinyang, 3,000 in Yongfengcang, and 10,000 in Youzhou. In the huge territory, only 43,000 cavalry are retained, among these cavalry, Xue Yantuo has 5,000 people, Khitan 20,000, and Xi people 5,000! Their war horses belong to the ones that come with the team.

That is to say, there are only 13,000 cavalry that are really formed by capturing war horses. One can imagine where the rest went!

The transportation of grain and grass occupies a part, the labor of the people occupies a part, and the mines use most of it!

The cattle of the nomads are not all cultivated cattle, it should be said that a large part of them cannot be used for farming, because the cultivated cattle need to be domesticated from a young age to be a good ploughing cattle! However, arable land is not easy to use, and there is no problem in using it to pull goods, especially to pull ore, mine the ore, and then pull it to the workshop. This is also the main reason why manpower mining can supply workshops and people to use coal.

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