Datang: Get a god-level selection system at the beginning

Li Wenbin heard that the emperor and empress were coming, so he rushed over to pick them up.

"The son has met the emperor father and the queen mother."

"Wen Bin, you majestic king of Yidu County, why did you become like this?"

The current Li Wenbin looked worse than a beggar. He was wearing a blue cloth robe, covered in dust, and his face was covered with a thick cloth, covering his mouth and nose.

"After returning to mother, Erchen is firing cement."

"Cement? What is that, is it a building material?"

"Yes, Father. With this kind of cement, it can be used to build bridges, pave roads, and build houses. The advantage is that it is convenient, quick, low-cost, and very durable, and it is not afraid of flooding and fire."

"Oh? There is such a thing?" As a generation of Mingjun, Li Shimin certainly understands how much benefits such building materials will bring, "If there is a finished product, show it to me."

"Yes, Father."

Li Wenbin quickly fetched half a sack of cement, and twisted the gray powder. Li Shimin then asked, "What is the cost of firing such cement, and how long does it take?"

"Father, this item is extremely easy to obtain, almost no different from burning bricks. As for the cost, it is some things like clay, slag, and gypsum."

After hearing this, Li Shimin was very interested in it, because clay and other materials are almost everywhere, and there are as many as you want.

At this time, a ninth-rank official ran out of the courtyard: "My lord, I have followed your instructions... I will serve as the supervisor and the right school Cheng Miao Bei has seen His Majesty and the Queen."

"This is sent by Uncle Wen, Shangshu of the Ministry of Industry, to help Erchen do odd jobs."

Seeing that the light blue official uniform on Miao Bei's body was almost gone, Li Shimin nodded: "Get up, there is no need to be polite. Wen Bin, take me to see the process of burning cement."

"Yes, father. It's just..."

"Ok?"

"When the cement is fired, it will cause a lot of smoke and dust, which is really harmful to the body. I can only ask my father to take care of the dragon's body."

"What are you afraid of, bring me a piece of thick cloth too. By the way, queen, don't go in, just wait here."

"Yes, Your Majesty, then you must be careful."

He patted Empress Changsun's hand, and Li Shimin wrapped the wet cloth that Li Wenbin handed over his face, and followed him to the cement firing site.

"Father, I ordered the craftsmen to mix the limestone and clay powder at a ratio of 5:1, and finally add a small amount of slag powder!"

"Put it in the lime kiln and calcine it overnight, and then it can be released."

"Is it cement that burns out like this?"

"No, it is necessary to add gypsum powder, which can delay the hardening time of the cement and facilitate construction."

Empress Changsun watched Li Shimin and Li Wenbin come back, and hurriedly asked someone to boil hot water for them to take a bath.

"Wen Bin, if this cement is really as convenient, fast, and durable as you said, it will be regarded as a solution to a big problem for me and Datang."

"Thank you, Father, for your compliment."

"Jiannan Daoji has more than [-] people. It took two years and millions of roads to lay the road, but it was washed away again after a few rains. If there is such a cement, it will be possible How much corvee has been saved, as well as state money.”

"If you want to be rich, build roads first!"

"Haha, well said! If you want to get rich, you must first build roads. By the way, you fired cement this time, and the merits and demerits are equal, so I won't reward you."

"Ah? Father, you..."

"Huh? What's the matter, you still feel wronged, don't you? You gave me a bad idea and burned those three fires. Do you know how many protest memorials are on my desk? They are all mocking me for violating filial piety. of."

However, as far as the little shit you did, isn't it against filial piety?
Of course, Li Wenbin only dared to slander in his heart, but he never dared to speak out.

"Father, you don't need to listen to mediocre words. My son and minister are all for my Tang."

Li Shimin didn't notice that what Li Wenbin said was about "Da Tang" and not for him: "Of course I know, you were waiting for that Jieli Khan to send troops, and then slapped those courtiers in the face. But, have you thought about it?" But, what if the Turks don't send troops?"

Li Wenbin said resolutely: "Impossible, Jieli Khan's temperament of losing money if he goes out without picking up something, how could he not take advantage of the fire?"

In fact, in history, Jieli Khan did exactly this. Li Shimin dispatched more than 20 cavalry with Tuli in less than [-] days after he ascended the throne. Pen benefits.

Of course Li Shimin knew that resisting foreign invasion was the best way to divert internal conflicts, but he was still a little uncertain about one thing, why Li Wenbin was so sure that Jieli Khan would send troops to attack Datang.

That's why Li Wenbin is so firm in persuading Li Shimin to use the fastest speed to stabilize the situation in the court——

Although it seems to be a lot of noise now, it will not really interfere with the operation of the court, and as soon as the news of Jieli Khan sending troops reaches Chang'an, these opposing voices will stop immediately.

"I can assure you that the news of the Turkic army's invasion will reach Chang'an at the end of this month at most."

"Okay, I will take this time as the standard and start preparing now."

When the Turkic army invaded in history, there were so few troops in Chang'an that Li Shimin could only play an empty city strategy.

But now because of Li Wenbin's reminder, there are more than 20 days of preparation time.

He believes that history will not repeat itself.

Li Shimin and Empress Changsun did not return to the palace that day, but stayed in the hidden mansion.

Early the next morning, Li Wenbin brought the preliminary fired cement powder to meet Li Shimin.

"Erchen has put a certain proportion of gypsum powder into it, and now we can start the experiment."

He ordered Miaobei to fetch water, sand and gravel, and had someone dig a pit about one foot deep. In front of Li Shimin, Li Wenbin mixed cement powder and sand into mud and poured it into the pit. middle.

Li Wenbin was busy up and down, laying wooden boards on the cement slurry, and ordering people to sprinkle water from time to time to prevent the cement from cracking.

"Father, this is all done. You only need to wait five days for the cement to harden completely, and you will see the effect."

"Wen Bin, you really worked hard this time. If the cement really has the effect you said after five days, then I will give you another credit in your credit book."

Li Wenbin said, "Thank you, Father."

While the two of them were talking, an urgent report was sent from the palace. After reading it, Li Shimin was furious.