Although you can already smell the breath of spring in Chang'an City in February, the air is still chilling.

There was another snow foam two days ago. The fine snowflakes fell on the ground. They were trampled by pedestrians and horses, and soon turned into sludge. The road surface that had just been running for a few days had become muddy again.

Those who ride horses and ride cars are not bad, but ordinary people become very inconvenient when traveling. When you go out for a walk, you often get a foot muddy, your shoes are soaked in mud, and your feet are soaked in cold mud, which makes it very uncomfortable.

At this time, Chang'an County sent many craftsmen and servants to start building roads on several roads leading to the east and west rooms. This time the main material they used was cement.

When Luo Yong handed the prescription for burning cement to Tang Jian, it was winter, and the roads in Chang'an City were also covered in snow and freezing, which was not suitable for construction. So His Majesty the Emperor ordered people to study the prescription carefully to see if there were any areas that needed improvement. According to Tang Jian's statement, this cement seems to be other methods of burning.

When Luo Yong handed this prescription to Tang Jian, he mentioned this a little bit. Yan might not have to use these ingredients to burn it. Perhaps there could be other recipes. After Tang Jian returned, he did not forget to mention it to His Majesty the Emperor. The emperor did not miss this information. On the same day, he ordered people to start studying this method of boiling cement, and his attitude was quite tough. In his opinion, since Luo Sanlang said this, the prescription could definitely be adjusted. If those officials and craftsmen cannot study it, it would be their dereliction of duty. What would happen if they were dereliction of duty?

So those people, under the pressure of losing their jobs, studied it day and night for two months based on Luo's use of the prescription.

After studying the past two months, they not only learned the original prescription of Luo, but also gained a lot. They found that if the proportion of yellow mud is appropriately reduced and the amount of lime is increased, the cement burned will be stronger. If clay used for pottery is used instead of yellow mud, the color of the cement burned will be blue-gray, and the quality of this blue-gray cement is better than the original earthy yellow cement.

In addition, they have made many different attempts. After all, high-quality clay is not available everywhere, and in Xipo Village, there are many loess. From this perspective, their prescription is a little insufficient compared to the original prescription Luo Yong.

But no matter what, the thought of using clay instead of yellow mud and confirming that it is feasible has already brought great confidence to these people. After that, they kept trying other materials. Because they were things for paving roads, the amount was very large, so the more common the materials, the cheaper the better. The recipe they presented to the emperor in the end was already a very mature cement formula.

When offering the prescription, these people were very excited, but the emperor seemed to have expected it and did not show too much surprise.

After all, with Luo Sanlang's original formula as the basis, he reminded him to try other materials. If he couldn't study it, then the group of people under his command would probably be vain. But no matter what, he should be rewarded.

In addition, before repairing the roads on the palace, the emperor ordered people to go to the east and west cities to build roads, and the matter was left to the magistrate of Chang'an County.

So, a few days later, the road construction in Chang'an City occurred.

Although this is an era of information blockage, relatively speaking, the news from Chang'an people is much more informative than other places.

Many people in Chang'an have heard before that there is an extremely flat cement road from Lishi County to Xipo Village. The road surface is like a whole surface of polished and smooth stone surface. The carriages are walking on it as if they are walking in the clouds. While everyone is surprised, many people feel a little unbelievable, but they say that it is the world that spread Na Luo Sanlang more and more amazing.

This time, cement road was built in Chang'an City, many people went to watch the fun, watching the powdery things being poured on the ground, mixed with the fine sand of water and sand, spread on the ground, and leveled them finely with tools...

The newly paved cement road is still very soft, and you can poke it on it and it will be a hole. On the second and third day, the road surface will become harder and harder, so you can quickly walk on it, and then there will be more and more cars and horses.

In February of the tenth year of Zhenguan, people living in Chang'an City developed a very unique entertainment, which was to go around the east and west cities without any trouble. Some people took horse-drawn carriages, some were riding ox carriages, and some were flying swallows. If you were not satisfied with the trip, you would come back and take another trip. The horse-drawn hooves were stomping on the road, making the residents on both sides of the road feel very distressed.

At this time, there were not many places where such cement roads were built in Chang'an City. Everyone was still very happy and proud of the fact that there was a cement road at the door of their house. However, after they were gradually stepped on by others, they felt that they were at a disadvantage. Those places where road construction was built late would definitely not be stepped on by others.

During this period, Chang'an people's topics have basically revolved around cement roads.

It was at this time that Chen Mian, a PhD student of the Imperial Academy, found Qiao Junlin. After some conversation, the matter of Qiao Junlin making up for the Imperial Academy was decided. Within a few days, he became a student of the Imperial Academy.

In mid-February, Chen Weng took a few disciples out for study tours, including Qiao Junlin. After all, this Imperial College is not as good as the schools in which the four schools study books and mathematics. There are few students in the Imperial College, and there are few disciples in each teacher. Most of the people who can come here to study are from good families. The school has always adhered to the principle of elite education. Regarding this study tour, the school has no objection, the parents have no objection, and the students are all very happy, so they set off happily.

Because Qiao Junlin had no carriage, Chen Weng asked him to share the same car with him. On the way, he naturally took a lot of homework for his school exams.

I heard that this teenager didn't have long enrollment, but his foundation was quite stable. I think he must have worked hard. Judging from his young age, it was really rare, so I taught him a lot along the way.

Chen Weng had no opinion on Qiao Junlin's background. After all, his own background is not good. Because he has to deal with these gentry children all year round, he is also very angry. He actually likes this extremely diligent young man from a poor family.

At the end of February, several students from the Imperial Academy, led by their husbands, came all the way to Lishi County. When several carriages entered the city, they were also stopped by the guards and asked a few questions. After seeing their way, they were willing to let go.

If it were in the past, people like them would generally not be stopped and interrogated. After all, just by looking at the carriages, you can know that this group is either rich or noble. They are not a military place. It is already good to have a servant to guard the city gates. Where can they ask so carefully?

But some time ago, the governor Hao somehow became particularly concerned about their gatekeeper work, which made them not dare to slack off. Anyone who wanted to enter the city, except for some familiar faces, they had to ask questions.

The group came into the city and first went to the restaurant run by the Wang family to have dinner. At that time, Dr. Chen asked Qiao Junlin if he wanted to go home to have a look.

"It's okay, it's getting late. After dinner, let's go to Xipo Village first." Qiao Junlin answered at that time.

As a result, Qiao Junlin's father heard the news from somewhere, and actually brought his youngest son to come over.

Qiao Junlin's father also studied, and he felt that he was not on the same level as those who could not read a lot of big words. At this time, when he saw these doctoral students from Chang'an City, he felt that he had met fellow students and treated them very enthusiastically.

"Since Dalang is back, he should go home to check it out." After greeting Dr. Chen and others, Qiao's father asked Qiao Junlin.

There was a lot of reprimand in his words, and it was probably because he had come back and didn't know that he would go home first. If he could lead these people to his home, he would definitely be more respectful than if he ran over here himself now.

"It's getting late today. I originally planned to lead the gentleman to Xipo Village first and come to visit my mother tomorrow." Qiao Junlin replied.

"Since that's the case, I will ask your mom to make more food you like tomorrow." Lin's father also looked like a kind father, a kind father and a filial son. This is also the common pursuit of many people. Even if it is not the case inside, he should always act on the surface.

"I'm sorry, my mother." Qiao Junlin replied lightly.

Lin's father didn't care. He gave a few more words of earnestness before he took his youngest son away.

After dinner, they set off again. In a carriage behind them, two young men talked about Qiao Junlin and his father.

"Why is Qiao Junlin so cold to his own father?"

"Who knows."

"Is it because I just looked a little bit like a human being, and I don't even look down on my new father?"

"His father's actions are really embarrassing."

"However, I'm not a very familiar person, so I'm too enthusiastic."

"No matter what, that's his father."

"I see that his younger brother is well-behaved, not like he has a stern face all day long, but it seems like someone owes him money and doesn't pay it back."

“Born and utilitarian, really not likable.”
Chapter completed!