After saying this, Long Zheng asked, "Chuan'er, when you were in Xihe just now, how did you think of asking your seventh grandfather to use that money to build roads?"

Long Chuan felt a little proud in his heart, and said in his heart, if you want to get rich, you must first build roads, this is a slogan that is shouted in another time and space. When Long Chuan returned to his hometown in the countryside, he also saw with his own eyes the convenience and benefits brought to the villagers after the road was repaired.

Thinking of this, Long Chuan stood up again, bowed to his parents, and said, "Father, mother, the child has a suggestion, ask father and mother to see if it is feasible." ”

Long Zheng said: "Chuan'er, you say." If you have any ideas, you say them all at once. Anyway, Dad has already heard a lot today, and he doesn't care about hearing more about your thoughts. ”

Long Chuan scolded a little in his heart, and said in his heart, listening to his father's tone, as if what he said was unreliable.

Long Chuan first asked, "Dad, what kind of cultivation method are the roads in our eastern city?

Li Yun smiled and said, "Where is the official mansion? Our Long family is the lord of Dongcheng, isn't the official mansion also our Long family?"

Long Zheng said: "The main official roads, the materials and expenses required to build the road are all from our Long family. The people are all recruited. The roads in front of each house are usually repaired by themselves. ”

What Long Zheng said was similar to what Long Chuan had expected.

Long Chuan thought for a moment and said, "Father, mother, and child are wondering if we can repair the roads in the city in addition to the official roads. In a place like Xihe, if the road can be built better, it can not only facilitate the travel of the villagers there, but if a demon beast attacks the city, in case a demon beast rushes to those places again, the soldiers in my east city can also rush to those places in a more timely manner to kill the demon, so as not to cause large casualties caused by the demon beast. ”

Long Zheng pondered for a moment and said, "Chuan'er, it's not that our Long family hasn't considered this matter you said. It's just that it takes too much to repair all the roads in the city. Even with the financial resources of my Long family, it is impossible to do it for a while. ”

Long Chuanxin said: "As expected, it's still a matter of money. ”

The dragon legend said: "Dad, this cost, is it mainly material or labor?"

Long Zheng said: "It's both. If the official road is repaired, each city can use official funds, which is not a problem. However, if you want to build roads other than official roads, you can only raise more money. Those who can really afford to pay are still those rich and noble. But the roads in front of the houses of the rich and noble, they themselves have already repaired. It's hard to get them to pay for the repair of roads elsewhere. ”

Long Chuanxin said, "Okay. This is a typical example of everyone sweeping the snow in front of their own door, and not caring about the frost on the tiles of others. ”

The dragon legend said: "Dad, the materials used to build the road should be mainly stones and mud. If our Long family can mobilize people along the road to help collect stones, our Long family will only be able to support it, right?"

Li Yun said: "Even so, if you want to repair the roads of the whole city, my Long family can't afford it. Chuan'er, don't forget, our Long family still has tens of thousands of people to eat, and we have to pay tribute to the city, and we have to buy those materials. ”

Long Chuan asked unrelentingly: "Mother, what if you only repair the road in that part of the West River?"

Li Yun smiled and said: "You kid, how can you be more energetic than road construction? If you only repair the road in the West River, my Long family can completely bear it." ”

As soon as Li Yun's words fell, Long Zheng said: "Chuan'er, it's not enough to pick the stone back, it also takes many skilled craftsmen to cut the stone into squares to pave the road." Otherwise, it will be piled up like this, and it will be difficult for the mud to hold the stone in place. When it rains heavily, or someone steps on it for a while, the road surface breaks. ”

Long Legend said: "Dad, how did we build the walls of the East City?"

Long Zheng said: "The stones on the city wall are all collected by the soldiers and people, and then chiseled into squares, piled up, and fixed with mud. ”

Long Chuan asked, "Dad, is there anything special about the mud?"

"The mud must be made of extremely viscous loess," Long said. Otherwise, it doesn't do much. As long as it is a good loess, after many times of trampling and mixing, the viscosity is generally enough, and there is no need to add anything. However, the walls of our eastern city have been built long ago. Even if the demon beast attacks the city, it is difficult to cause any damage to the city wall. Demon beasts generally climb up along the city walls. ”

The word "cement" flashed in Long Chuan's mind, and was immediately denied by Long Chuan. Not to mention whether Long Chuan can pound out the cement, even if he can, Long Chuan doesn't want this city to become a reinforced concrete city similar to that in another time and space.

Long Chuan thought about it slightly, and already had an idea in his heart.

In this time and space, there are no modern means of transportation. In other words, the weight that needs to be carried on a road surface like the West River is not too large. At most, the road surface only needs to carry the weight of the carriage. It's not like in another plane, where you need to carry a big guy that weighs 100 tons. On the sidewalk, there will always be people driving up the car and crushing the road surface as in another time and space.

In this case, the stone does not need to be made so regular, it just needs to be able to fill in. As for the mud, hehe, Long Chuan has eaten glutinous rice in this time and space. As long as some cooked glutinous rice slurry and grass are mixed with the mud, the mud made in this way is not only extremely viscous, but also has no worse hardness and toughness than cement after solidification. It's just that some food is going to be wasted. I wonder if my father and mother will beat people?

Long Chuan secretly gritted his teeth and said, "Father, mother, the child thinks that it is not necessary to cut the stone into cubes. ”

Long Zheng showed an interested expression and asked, "Oh, Chuan'er, tell me, what do you think?"

As soon as Long Chuan said his thoughts, Li Yun asked, "Chuan'er, how do you know this?"

Long Chuan stubbornly said: "Mother, when the child was eating glutinous rice before, he accidentally dropped the glutinous rice on the ground and got dirty. The child found that the glutinous rice and the dust on the ground were stuck together, and they could not be separated. The child thought that this method might make it. ”

Long Zheng thought for a moment and shouted, "Someone!"

When a maid came in, Long Zheng said, "Go and tell the kitchen to boil a pot of glutinous rice syrup." After boiling, let someone go and send it with a bucket of mud and some straw. ”

When Long Chuan heard this, he immediately sweated profusely. I've seen someone who is so anxious, but I've never seen someone who is so anxious!

After the maid went out with a suspicious face, Long Zheng said, "Chuan'er, if this method works, it will be much easier to repair the roads in the city. There is no need for so many specialized craftsmen to drill the stone, and the various costs will be much less. If we can use the stones if we move them back, there are many stones inside and outside our eastern city. ”

Long Chuan remembered the stinky sewage river in the West River, and said, "Dad, if this method is really feasible, the child thinks that we can also clean up the sewage river in the West River." ”

Long Zheng said: "Tell me, what do you think?"

Long Chuan stood up, gestured a few drainage pipes on the ground with his hand, and said, "Dad, if we can divert the sewage on both sides of that sewage river, the water quality of that river will naturally gradually improve." ”

Long Zheng and Li Yun both stood up, came to the front, and after watching Long Chuan compare for a while, Long Zheng said, "This method is quite a trick. But where does this sewage end up?"

Long Chuan smiled again in his heart. In this time and space where there is no industrial pollution, there is no need to bury so many messy pipelines underground, and to treat a little domestic sewage, you can use any sand filtration method or grass filtration method. The filtered organic waste can be used as fertilizer or burned in a fire.

Long Chuan asked, "Dad, how does the topography of our eastern city compare with the outside of the city?"

Long Zheng said: "The terrain in the city is higher than most places outside the city. Chuan'er, you mean, to bring sewage out of the city?"

After talking about his thoughts on filtering sewage, Long Chuan said, "Dad, most of the sewage, after being filtered, should be directly discharged into the river. Close to the city walls, we can drain the water outside the city. In a few years, the water discharged outside the city may still be of great use. There's no one to plant the land outside the city, right?"

Long Zheng said: "Since there have been demon beasts infested, no one dares to plant the land outside the city. Ordinary people would not dare to go out of the city from outside the West Gate unless they had to do so, unless they ventured to find those things. Chuan'er, what do you mean by saying that this water is of great use? It is absolutely impossible to use this water to form a large ocean and block demon beasts. ”

Long Chuan grinned and said, "Dad, the child doesn't plan to make a sea out of the city. However, if water is discharged from the city for a long time, wetlands will form over time. These wetlands can also play the role of some sluggish demon beasts. Moreover, the wetlands will eventually become extremely fertile. When the demon beast is destroyed one day, we will have a large piece of fertile land in Dongcheng. ”