The Mausoleum of Qin Shihuang was born, and my immortal identity was exposed

Chapter 83 The method of making cement (please collect, please recommend!!!)

It should be known that in the Qin Dynasty, if there was a problem with the quality of the project, everyone should be responsible.

Li Shimin also nodded slightly, expressing his approval of Jiang Sheng's plan.

At the same time, he also secretly remembered that he would also try out this method of "whoring for nothing" in Datang.

After more than ten years, there will be countless highways in the Tang Dynasty, and the most important thing is that he, the emperor, will not need to spend money from the national treasury.

I believe that even the group of ministers will not object, or even admire it.

Thinking of this, the face-saving old Li couldn't help but feel a little complacent.

The eyes of the two emperors were all in Jiang Sheng's eyes, and he nodded imperceptibly.

Jiang Sheng put forward these policies, but he didn't know that it was for the merchant's wool, and it was his small attempt.

When Jiang Sheng was bored, he also read various books.

He once read in a book that according to a certain economic theory, government investment in infrastructure can greatly stimulate the economy.

But the establishment of this conclusion has a premise, and the root of it is the requirement of excess domestic production capacity.

However, in the Qin Dynasty, productivity was insufficient at this time, so the domestic production level would drop as much as the amount of corvee was collected, and the total output of the whole society would drop.

In addition, corvee is compulsory. In this process, once the common people rise up to resist, it will have a great impact on the stability of the social environment.

Therefore, the first emperor's large-scale construction projects dragged down the country.

However, many dynasties in later generations will employ the victims of disasters through the means of labor relief, which can stabilize the economic operation.

Encouraging the construction of projects in times of famine, firstly, the construction party can hire the victims at a low price, secondly, the victims can get the basic supplies needed for survival, and thirdly, the pressure on the government to maintain stability is reduced, which can be said to serve multiple purposes.

Jiang Sheng's idea is very simple, the infrastructure construction of Daqin must continue to be done.

Be it Lingqu or Qin Zhidao, they are all beneficial to the country.

However, in the social environment at that time, it became a kind of harm to Daqin.

Now, Jiang Sheng has given the seeds of many modern crops to Yingzheng.

From this point of view, within a few years, the continuous expansion of these crops will cause a surplus of labor.

Then, as long as the problem of corvee is solved, the surplus labor force can be devoted to the country's infrastructure construction.

As a result, the construction of these projects will not drag down Daqin, but can make Daqin's economy develop better!

Doesn't Lao Zhao like big construction projects?When the time comes, let him repair it severely!

Thinking of this, Jiang Sheng raised his wine glass to cover up the smile on his lips.

"Hahaha!" Ying Zheng also raised his glass to congratulate Jiang Sheng, and said with a smile, "Master Immortal, when I defeat the Xiongnu, I will start building this highway immediately!"

Jiang Sheng nodded: "Didn't I give you an industrial manual, when the time comes, let someone study the method of making the cement on it."

After Jiang Sheng gave Yingzheng the basic industry manual that was rewarded by the system, he used it to subdue the two masters of mechanics, Gong Shucang and Huang Tingjing.

However, in the past few months, these two people have been busy leading craftsmen to create various military supplies to prepare for the Northern Expedition to the Huns.

"Cement?" Li Shimin asked curiously, "Is there mud in the water?"

It seemed that he had to explain, Jiang Sheng looked at Li Shimin who looked like a curious baby, and sighed slightly.

"See the ground outside?" Jiang Sheng walked to the door, opened the door, pointed to the ground in the yard and said:

"This is paved with cement. Come on, try it and see if it can be trampled."

A group of people followed Jiang Sheng to the yard.

"When I first came here, I thought the ground was some kind of stone slab?" Ying Zheng stomped his feet, feeling the touch from the soles of his feet.

"Ouch!" Wang Ben shouted loudly, and he was an unbelieving general. He kicked down hard, and immediately screamed: "Your Majesty, this, this is too hard!"

Meng Yi squatted down, stroked it carefully, raised his head and said: "Your Majesty, if this thing is used to build roads, the roads built will be extremely strong, and it will not be affected by rain!"

Qin Chao has also cultivated Chi Dao, such as the famous Qin Zhi Dao.

But how is that fixed?Made of mud.

At most, the soil is smashed, saline and alkali are added for frying, and the cooked soil is repeatedly compacted.

The Qin Zhidao built in this way can ensure that no weeds grow.

But that's all.

No matter how much you say, it is made of clay after all.

A heavy rain can make this road impassable.

If it is replaced by cement, everything will be solved easily!

"Master!" Li Shimin asked a key question: "Is this cement a precious thing?"

Jiang Sheng shook his head and smiled: "On the contrary, this thing is not worth much."

The manual given to Ying Zheng now requires millions of life points to be exchanged in the system mall. Jiang Sheng can only explain it to Li Shimin word by word.

"Cement is actually pretty easy to make."

"First of all, we need lime. Do you know what lime is? It's a stone that releases heat when it meets water."

Jiang Sheng slightly introduced some properties of lime so that the two emperors could remember.

The history of lime can be traced back to the seventh century BC. Whether it is the Great Qin Dynasty or the Great Tang Dynasty, there must be this mineral.

"Crush lime and clay into small pieces and grind them in a ratio of four to one. This is called raw meal."

"Then calcining the raw material must use high temperature, so that clinker can be obtained."

"Old Zhao, when you defeat the Xiongnu, the coal you mined can just be used to calcine cement and steel!"

"After the clinker is burnt, it can be taken out for grinding, and some iron slag can be added into it, not too much, just one-tenth of the clay."

"These powders are cement."

"When used, it is mixed with gravel and fine sand and mixed with water in proportion to make concrete, which can be used to build houses and pave roads."

"It only takes two to three days and it's rock solid!"

"If you want to build a road, you need to use wooden boards to support the formwork to facilitate the setting of the concrete."

"Before laying concrete, the base layer must be properly treated, and it must be vibrated continuously during the laying process. Uh, forget it, just find someone to use a stick to constantly shake it."

Jiang Sheng explained the details of watering and maintenance, cutting expansion joints and so on.

In the end, he even found a blank piece of paper, and while facing the phone, wrote down the preparation process and construction process in regular script and handed it to Li Shimin.

According to his method, although the prepared cement is definitely not as good as various types of cement in modern industry, it must be enough in ancient times.

Jiang Sheng also simplified the construction process, but even if the quality of the concrete of the repaired road is not up to standard, at least it is much better than the loess road.

ps When I wrote this chapter, I recalled the fear of being dominated by various norms. If there are high school students who read my book, I would advise you not to study civil engineering in college! ! ! !

(End of this chapter)