Fang Xuanling and the others quickly rushed here, everyone was standing behind Li Shimin, Li Shimin didn't speak, and naturally they didn't take the initiative to ask.

After waiting for a while, Li Shimin spoke: "You should all know about this bridge?" ”

"Yes, the ministers know." Fang Xuanling said.

"I'm sure you all know it, but there must be a lot of people watching it for the first time, how do you feel?" Li Shimin looked at the several large ships parked around the bridge piers on the river in the distance, as well as the steel towers erected around the bridge piers, and did not know what they were doing.

"Shocked, to the minister's feeling, this doesn't seem to be done by manpower, but this is indeed a little bit of construction by the workers of the state-owned commercial bank under the Ministry of Construction." Fang Xuanling said seriously.

The others also nodded in agreement, this thing is indeed the first time many of them have seen it, but with such a huge pier, how huge should the bridge be? How wide should its path be? Does Datang really need such a wide road?!

"Why did Li Ke carry out the restructuring, do you understand now? Do you think that if it were still the previous system, would there be this Weihe Bridge that has just begun to see the scale? Li Shimin asked.

None of them answered, because they probably knew the answer now, and they also knew that His Majesty didn't really need them to give an answer, to give an answer.

"Yan Lide." Li Shimin said.

"The minister is here."

"Do you know the details about this bridge? When will it be completed? How much does it cost? Did Li Ke tell you? What he said. Li Shimin asked with some curiosity.

"Back to Your Majesty, it will take about two years to complete it completely, and it will cost extremely high, according to His Highness, it will probably take two warehouses." Yan Lide hesitated for a moment before speaking.

"Two libraries? What unit is this? Li Shimin was stunned for a moment, and asked with some confusion, and the others also looked over, they had never heard of this mathematical unit.

"Uh...... His Highness said that if a treasury was 10 million yuan, it would need two treasury. Yan Lide said with some apprehension, no way, that's what His Highness said at the beginning.

Li Shimin: "......"

Everyone: "......"

"Is it necessary to spend so much?" Li Shimin asked with some confusion.

"His Royal Highness said that this is the necessary cost of technical certification, and this bridge is to make technical reserves for the Yellow River Bridge, Yangtze River Bridge and other major rivers throughout the Tang Dynasty in the future." Yan Lide immediately spoke.

Across the Yellow River, the Yangtze River? Everyone is blinded, can it really be done? The Yellow River and the Yangtze River are not comparable to the gentle and shallow rivers such as the Wei River.

But looking at the piers that stood in front of me, dozens of meters high...... It doesn't seem impossible?

"And even so, why is it so expensive?" Li Shimin was a little curious.

His Royal Highness said that the cement used for these piers is extremely demanding, and the cost is at least ten times higher than that of the cement used for paving. The steel bars used in cement crushed stone are also extremely difficult to manufacture and refine, which is why they are so costly. ”

"However, His Highness said that this is also a good thing, such a huge capital investment can allow these factories to upgrade their technology, and the cost will naturally come down when the second and third bridges are built in the future, but even so, His Highness said that the cost of the bridge is also the highest." Yan Lide spoke.

Li Ke is not false, but it is true, now Datang's cement production process is not so accurate, although compared with the Schrödinger's cement at the beginning, the current cement quality can be initially controlled.

However, it is still uncontrollable to achieve the quality of high-strength cement used in the bridge piers, so the refining method of the cement plant is still restored to the previous Schrödinger's refining method.

After refining, the cement made by this furnace is numbered separately, and then some building structures are poured on site with the produced cement, and after the cement is hardened, it is tested to see if it meets the standard.

If it meets the standard, the furnace cement will be transported to the construction site, if it does not meet the standard, then go to build roads or do other things, and continue to refine the special cement for the pier, which is why the speed of this pier is so slow.

In addition, there are requirements for the cement pouring speed of the bridge pier, such as how long after the cement must be used, so the cement that is mixed at one time cannot be too much, or the cement that needs to be poured at one time must be stored for a period of time, and enough personnel are found for one-time construction.

There are also any vibrators that must be connected to the steam engine, which are more difficult.

All in all, all kinds of methods are used by these craftsmen, in addition to cement, the methods of enhancing the strength of the structure These craftsmen also have their own traditional methods, anyway, they are all proposed, step by step testing, can be used.

This is why it is slow and expensive, and it is also a test of a standard construction process, in short, after such a huge large-scale project, you can quickly train a group of excellent construction workers and hundreds of bridge experts!

This is very important for the future Datang, which has a huge territory.

Although railways can be built in sections, it is naturally faster to have a bridge to cross the river directly.

"Oh yes, I haven't asked why the piers of this bridge are built so high." Li Shimin remembered something and asked.

"Your Highness said that everything should be built with sustainable development in mind, and this is the first bridge over the Wei River, and the height of ships passing through in the future will be limited by the height of the first bridge."

"And in the future, there may be a second or third bridge over the Wei River, but once there are more bridges, if we want to have bigger ships on the Wei River, it will not be possible, because the bridges cannot be demolished and rebuilt." Yan Lide spoke.

Yan Lide's words made everyone around nod silently, worthy of His Royal Highness the King of Qin, with this perspective of standing on the overall situation, it can be said that the entire court can't find a single person.

Compared with the seriousness of the atmosphere of the ministers, the atmosphere on Changle's side was much more relaxed, and they were all looking at all this in front of them with amazed eyes and tones.

The stop at the pier was just an episode, there were boats dedicated to ferrying, and people had crossed the river not just for people, but for everyone's carriages.

After crossing the river, the train station was not far away, and soon, a huge building appeared in front of everyone, and when they saw this station, everyone was a little dazed.

It stands to reason that buildings with such a large footprint tend to be either factories or palaces, but it clearly doesn't look like anything here.

Its architecture as a whole is mainly practical.

When they arrived, Li Ke was already waiting here.

"San Lang, why did you call us here today?" Li Shimin said unceremoniously when he saw him.

"Hehe, father, I called you here to show you a new fairy tale of the Tang Dynasty."