The 1st Guards Division had already left Datong Mansion and set up camp at the site of the old city of Yulinwei.

No matter how the little prince will retaliate against the Ming Dynasty, the Ming Dynasty's own military strategy remains unchanged, that is, following the principle of "hit you, I will fight mine", and the Ming Dynasty has been carrying out its own strategy of external expansion from beginning to end.

Because the main purpose of the current Ming Dynasty is to build a city outside the pass and carry out mineral development and land development, rather than to seek opportunities to annihilate the enemy, the first division of the Guards Army did not move around after camping in Yulinwei.

Coming to Yulinwei with the First Division of the Guards were Zhang Xuan, the first magistrate of Yulin County, and tens of thousands of soldiers, most of whom were recruited from the Huaiyang area to starve people.

And now, they will be the first Han Chinese to settle in Yulin County.

Yulin is located on the east side of the Hetao, and outside the Datong Pass, which is currently an area controlled by the Tatars, so there are often Tatars in this area, so after Zhang Xuan arrived at Yulin with tens of thousands of soldiers and the first division of the Guards, the first thing to do was naturally to build a city and build roads.

The first is fortification.

Zhang Xuan turned all these hungry people in Huaiyang into migrant workers through cash-for-work, and let them directly participate in the construction of the city.

The 1st Guards Division was responsible for guarding the new city.

For the city wall, Zhang Xuan was ready to build it directly with cement concrete.

In the city, Zhang Xuan no longer uses cement concrete to build, after all, the output of Daming cement is limited.

Naturally, the cement and concrete were also transported from Beijing, and these hungry people took on the role of transporters, and it was impossible for them to eat for nothing along the way.

Even if the outer city is built, it can only use bamboo reinforced cement concrete, and it is impossible to use reinforced concrete for a while, after all, the output of Daming steel is still limited.

Using bamboo as the backbone and then pouring cement concrete can also have the same strength as reinforced concrete.

The speed of building the city wall with cement concrete is naturally faster than that of tamping the triple soil, and the efficiency is directly increased by several times, and the built city wall can be quickly solidified in one day, and become a hard city wall, and will continue to carry out physical and chemical reactions after long-term exposure to the air, and become a more hard stone.

Within three days, Zhang Xuan led all the migrant workers to build an extremely strong outer city wall.

Feng Junxian, the governor of Datong, had received an order from Zhu Houzhao to fully cooperate with Zhang Zhang's construction of the city in Yulin, so when the outer city of Yulin City was completed, he also came to Yulin City to inspect the construction of the city wall of Yulin City.

In fact, Feng Junxian, the governor of Datong, did not expect Zhang Xuan to repair the city wall so quickly, he also did an official in the border town for a long time, knowing that the construction of the side wall is not a simple project, it is naturally impossible to use all the green bricks, the cost is too high, generally only the important passes and Kyoto Ayutthaya only use green bricks, most of the side walls are mud and semi-masonry outer bricks, and Yulin City, a new city outside the Guanwai, can only use mud to build the wall first, so that several migrant workers work together to tamp the Sanhe soil, a little bit of hammering to tamp out the city wall.

But he didn't expect Zhang Xuan to build the outer city wall of Yulin City within three days.

Feng Junxian, the governor of Datong, said that he came to inspect Yulin City, but he came to question Zhang Xuan, who was worried that Zhang Zhang, a young county commander, was too eager for quick success and quick profit, and did not let the migrant workers hammer the Sanhe soil, so that the degree of tamping was not high enough, so as to achieve the goal of the rapid casting success of the city wall.

However, Feng Junxian knew that once he cheated and slipped during the construction of the city wall, it would directly lead to the fact that the city wall would not be able to stop the Tartar cavalry in the future, and even some city walls that were not well tamped could be directly chiseled by the Tartars.

But Governor Feng was directly surprised when he saw the appearance of the city wall of Yulin City, he didn't expect the soil of the city wall of Yulin City to be so smooth, and it looked like ice from a distance, so he couldn't help but ask Zhang Xuan: "Zhang Zhixian!" What kind of earth is your wall made of, and is it strong? ”

"Back to Futai, the cement concrete used by the lower officials, with good bamboo in the south as the tendon, can save a lot of manpower, but it can achieve a stronger effect than Sanhe soil, Futai can try it yourself", Zhang Xuan said with a smile.

Feng Junxian, the governor of Datong, was not polite, and directly pulled out the knife on the waist of his own soldiers, and slashed directly at the city wall!

Boom!

The city wall was only splashed with a little bit of debris, leaving a small hole less than half an inch deep, but the steel knife in Governor Feng's hand was missing!

"How is this possible! My soldiers are equipped with 100-for-steel knives! can break the armor and broken the pole, why is it not as hard as the Yulin city wall! And this official did not spare any effort! ”

Governor Feng was extremely surprised, and couldn't help but shake off the numb tiger's mouth, and returned the knife to his own soldiers, and his personal soldiers showed a rather depressed look on their faces, after all, they finally mixed into the governor's personal soldiers, and they had a hundred steel knives, but who knew that they were missing!

Of course, neither Governor Feng nor Zhang Xuan cared about a soldier's feelings, and Governor Feng still couldn't believe the results of his experiment just now, after all, even the city wall made of blue bricks would be very hard after a long time, but the Yulin city wall was only three days!

"Just because the walls are hard doesn't mean they're strong, and the ice is sometimes hard, but isn't it still fragile? Rong Guard, you have always been brave, you go and try to hit the city wall! ”

Governor Feng couldn't help but ask Zhang Xuan as he spoke: "Zhang Zhixian, if the official's people crash into your city wall, you won't mind." ”

Although Zhang Xuan is only a magistrate, he was personally appointed by the emperor, and Feng Junxian also knew that he was the emperor's favorite minister, so he naturally did not dare to despise Zhang Xuan because he was a superior, but Zhang Xuan still calmly replied:

"Even if Futai is hit by people, more people can hit it, even if it is bombarded with artillery, just to test the solidity of this city wall."

Governor Feng was naturally reluctant to use the cannon to play with it, but he still let the Rong garrison, who was born with divine power, try to hit the city wall.

Rong Shoubei used all his strength to run dozens of steps away and crashed directly into the Yulin City Wall.

Bang!

The walls of Yulin are still standing firmly in place like a rock.

And Rong Shoubei was directly bounced to the ground, and under the action of the reaction force, he was dizzy, and he felt like he had been punched hard in the shoulder.

Governor Feng asked more than a dozen strong soldiers to collide with him, and as a result, the Yulin city wall was still standing.

At this moment, Governor Feng also had to believe in the solidity of the Yulin City Wall, however, he suddenly grabbed Zhang Xuan's shirt with excitement, changed his gentle attitude just now, and almost roared and asked:

"Since Jingshi has such magical soil, why didn't it be used in the border town earlier! If it had been used in a border town earlier, in the eighteenth year of Hongzhi, how could the Tartars easily break the newly built castle near my Datong and slaughter no less than 3,000 of my border people! That's more than 3,000 lives! ”

Zhang Xuan didn't expect this Governor Feng to be so excited suddenly, and after this Governor Feng finished shouting and loosening his clothes, he tidied up his official robe:

"Futai doesn't know, this thing to build the wall is called cement, it is a new product of the Royal Industrial Company, and now there is not much cement produced, part of it is used to repair the road from Datong to Jingshi, so as to transport grain in the future to recover the Hetao, and the other part is brought by the lower officials to build a new city outside the Saiwai, so there is no way to use it all for the border town!"

Hearing Zhang Xuan's explanation, Governor Feng regained some composure, and for a while realized that he seemed to have lost his mind just now, and couldn't help but bow his hand to Zhang Xuan:

"Forgive me! This official behaved a little out of shape just now! I really thought of the tragic situation of being slaughtered by the Tartars in the past, and I couldn't bear it for a while! But if there is such a fortification artifact, why should the Tartars be detained as if they were returning to their own homes, and they would not have wasted so much financial resources and people's resources on this city wall. ”

"Xiaguan understands Futai's painstaking efforts! However, His Majesty said that it is better to defend than to attack, and the thieves and thieves cannot be prevented, and the Huanghuang Ming Dynasty should have the advantage of strengthening the army outside the fortress, and should not spend the benefit of the people to stick to the nine sides!

Now, Yulin City is only the first step in the benefits of opening the fortress, and next, there will be Dongsheng, Zhenyu and other cities will appear one after another! Now the lower officials also have a reluctant request, imploring Lord Futai to summon the military and civilians in Datong to repair the road from Yulin to Datong, so that the grain, livestock and ore of Yulin can be transported to Datong in the future! ”

Zhang Xuan said and explained why he suggested this, the reason is that the Yulin area is close to the river and the terrain is stable, so the land is fertile, rich in minerals, and Datong is a fortress of the Ming Dynasty, and there are many soldiers and civilians, and Yulin will really develop in the future, it can be used as a food and mineral supply base for Datong.

Governor Feng nodded, the imperial court intends to recover the Hetao and build a city outside the wall, he naturally can't disobey it, and he also knows that once Yulin is built as a city, then it will become the gateway to the right guard of Datong, and the road will naturally be renovated and widened, not only to facilitate the replenishment of military supplies, but also to facilitate mutual support in the future.

"There are a lot of guards and auxiliaries in Datong Mansion, although they can't go into battle to kill the enemy, but it's still okay to build roads, rather than letting them idle white-collar food, it's better to let them do their work, this official agreed! However, this official wants you to play with this official, and ask the imperial court to allow Datong to also make cement to strengthen the border town! ”

Governor Feng still remembers the cement mentioned by Zhang Xuan, what he wants to do most now is to let the imperial court allow him to hire someone to develop cement in Datong Mansion, he believes that as long as the Datong border town uses cement, the border of Datong border town will be strengthened several times, even if the Tartar 100,000 iron cavalry to attack, he is no longer afraid.

However, Governor Feng didn't know if the cement was now forbidden by the central court to control local border towns, so in order to allow His Majesty the Emperor's permission, he wanted Zhang Xuan, the emperor's favorite minister, to go up with him.

Zhang Xuan did not refuse Governor Feng's proposal, because he knew that the imperial court only restricted the cement manufacturing area to avoid polluting the water and affecting the essence of the mountains and rivers, but did not restrict local and private cement production.

Governor Feng returned to Datong with the recital jointly written by Zhang Xuan.

Zhang Zhang, on the other hand, continued to devote himself to the construction of Yulin City.

Naturally, the streets and buildings in the city were no longer built with cement, but directly with mud, and even the main streets were paved with only a few stones.

However, these migrant workers are still working hard.

Because, Zhang Xuan had already told them that they were going to settle down here again, and the imperial court would give them arable land outside Yulin City, and both men and women would have a share.

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