In order to repair the first reinforced concrete bridge across the river in human history, Chen Xu can be said to have brought out all the knowledge about bridges he had learned in later generations. He explained it for nearly two hours, and finally felt dry mouth and a little dizzy before stopping.

"The first task to do now is survey and design, and then according to the size budget of the bridge, the steel bars, cement and gravel, as well as the construction period and the manpower and material resources required, so I would like to ask Dean Zhang for this matter first, and take people along the river to find the most suitable location, and make a coordinated budget for everything needed to build this bridge, the length of the bridge, the length of the bridge, the position and height of the bridge piers, bamboo, wood rope, mesh, straw mats, etc. used to build the template. Anyway, everything must be planned for a complete plan."

"By the way, I have recently arranged personnel to pour a concrete one meter wide concrete pavement on the section of the road leading to the freight terminal from the south gate of the city. The thickness is only one foot. The length of this section of the road is only two miles and can be completed in a few days. Pay attention to the problem I mentioned last time. In order to cope with the thermal expansion and contraction effect, casting gaps must be reserved every few meters away, and the roadbed must also be built in a flat manner..."

"Mr. Marquis, why do you need to repair this road before building the bridge? Is it necessary to transport the bridge repair supplies?" A craftsman couldn't help asking.

"No, this is to let the emperor and the ministers of the court see the effect of cement. There is no sufficient effect to impress them. This bridge cannot be repaired by our Academy of Sciences. The cement, sand, gravel and steel consumed are astronomical figures, each of which is at least tens of millions of kilograms, and it also involves the screening and transportation of cement plants, steel plants and sand and gravel. Therefore, this is a super-large project that cooperates with many industries, involving no less than tens of thousands of people. Therefore, this road is repaired first, so that everyone can see the magical effect of cement turning into stone. Then I believe everything will be solved, and we will do it in the end.

It is the engineering command. Of course, the construction of this road can also accumulate experience in concrete mixing. After all, such a large bridge cannot be successfully poured in one go. It must be completed in sections and blocks. Therefore, the consistency of the concrete ratio must be ensured. Therefore, you must strictly implement the engineering quality standards I mentioned. Don’t collapse in the future by negligence or collapse shortly after the construction is completed. Spending so much money will have such serious consequences. According to the laws and regulations of the Qin Dynasty, you, including me, will be subject to heavy damage. Supervisors and craftsmen will be beheaded, so everything must put the quality of the project first..."

Although Chen Xu made a very serious prediction of the consequences of the collapse of the bridge, this did not scare all the craftsmen and craftsmen of the Academy of Sciences. Almost everyone asked to participate in the construction of the Weihe Bridge. Even Tang Ting, the person who studied glass, was extremely enthusiastic, which made Chen Xu very confused. In the end, he threw this piece directly to Zhang Cang, and gave Zhao Qing a close explanation, asking him to arrange personnel to cooperate with Zhang Cang to provide all necessary support.

Once this Weihe Bridge is successfully built, Qin Shihuang will definitely fully support the large-scale development of the cement and steel industries. Only by accelerating the promotion of iron agricultural tools faster, so that careful farming can develop faster, transportation more conveniently, and commerce can develop faster. Only by working together with agriculture and commerce is the foundation for the prosperity and strength of the country.

Although this bridge is just an inconspicuous concrete bridge on a small river in later generations, it seems to everyone now that it is a miraculous bridge.

Moreover, in this era without cars, cranes, forklifts and excavators, all projects are piled up manually, and every sand and stone are hard-won. I am afraid that just screening sand and stone is a huge project.

What's more, so much cement needs to be burned. If 100,000 kilograms of cement are used, totaling 25 tons, then sand and gravels should be used twice and 6 times the cement. This is a repeated trial and ratio under the guidance of Chen Xu when building swimming pools and water towers. It saves cement more cement. After drying, the concrete strength is also very high, so sand and gravels will look like 37 tons and 75 tons respectively.

The remaining large heads are steel bars of varying thickness. At present, the steel bars are all low-carbon steel and have good tensile resistance. Although hot pulling is used, because there are no large and safe equipment and methods to operate steel juice, the longest steel bars are only five meters long, so the waste is relatively serious during use. This bridge is estimated to require at least dozens of tons of steel bars.

Although Chen Xu had already calculated these things in his mind at the beginning of the plan to build the bridge, he felt a little nervous when he was officially established. Dozens of tons of steel seemed to be not much, but in this era without any mechanical equipment, it was all up to work slaves to mine ore with their hands and hoes, and then carry out the mine pits in baskets, and then a truck of about 300 kilograms to the iron smelting plant, which consumed a lot of coal stones, and a furnace could only smelter more than 200 kilograms. In addition, pig iron also needs to be smelted by secondary smelting, turning carbon removal into low-carbon steel to increase toughness, and then it had to be transported to Xianyang thousands of miles by manpower carriage. I don’t know how many people would be exhausted and how many people would be sick and injured...

Mom, have I been full recently?

When Chen Xu thought about how much materials it took to build a bridge, he had to spend so much manpower and material resources, and he felt that he was committing a crime. It would be better to soak in the swimming pool at home and eat ice powder and watch a group of wet little maids having fun leisurely.

Zhang Cang became the chief engineer of the Weihe Bridge Engineering Command, and began to convene craftsmen and craftsmen who are proficient in water conservancy and bridge construction in the Academy of Sciences to prepare engineering survey teams. He also asked Zhao Qing to contact the Ministry of Industry, Shaofu and Neishifu Office to send officials to cooperate in handling the mess.

After Chen Xu arranged for the bridge repair, he got on a carriage and went to the newspaper office.

A few days ago, the Neishifu reported that Lao Ai's villa, seven or eight miles away from the west of the city, had been completely repaired, and the office spaces of the History Museum and the Bookstore, including the desks and chairs, were all prepared. Now, only the recruitment of talents and recruiting personnel can be gathered to officially start construction.

In fact, the printing factory was completed earlier than the History Museum and Bookstore, and it was located on the west side of the villa in Lao Ai.

It turned out that the stables were located, but the area occupied was extremely spacious. Chen Xu visited it twice and felt that at least five hundred horses could be raised at the same time. Although many places had collapsed and dilapidated in the past twenty years, it was still obvious what kind of spectacular momentum it was, just like a horse farm in a military camp.

No wonder he died so arrogantly!

Chen Xu was very moved at the stable covering an area of ​​dozens of acres, but after the rest courtyard outside his city was recently repaired, he looked at his stable and felt a little scared. After the emperor rewarded him several times, he already had more than 200 horses, and the stable also had twenty acres, and his family also had tap water and swimming pools that the emperor did not have...

So Chen Xu has become a little cautious recently, afraid of hearing the emperor's call.

Fortunately, the emperor did not come to cause trouble for him, and even met as usual, and did not intend to pull him out and pull him out with five carriages.

Now that the history writing museum, bookstore and printing factory have been prepared, a large number of disciples from hundreds of families can be summoned to start compiling history books, and sorting out poetry books and classics of the sages.

When they arrived at the newspaper office, Chen Ping and Fu An and other senior leaders welcomed Chen Xu to the office and sat down. After serving incense tea, Chen Ping asked: "Mr. Marquis, you haven't been here for several days. Do you have any instructions today?"

"Well, was the last time I asked you to write the recruitment list article?" Chen Xu nodded.

"It's the one in the History Museum and the Bookstore. I've finished writing it. I'll show you!" Chen Ping took out two pieces of hemp pulp from the drawer and handed it to Chen Xu.

"Yes, that's it!" Chen Xu looked closely and returned it to Chen Ping, "As soon as possible, publish this recruitment list article in the latest newspaper and spread it. The History Museum and Bookstore have been completed, and there is only a person left now."

"Mr. Marquis, there are probably thousands of people who have been convened by these two offices. The money and food consumed every year are not a small amount. If you cannot make money like a newspaper, the Inner Palace may not be able to afford it..." Chen Ping said with great concern.

"What the History Museum originally did was to inherit the measures of future generations, and it was the result of the original and clear source. It was supported by the court. However, some of the books compiled in the bookstore were all classics from various schools of thought and belonged to the inheritance of the disciples of the hundreds of schools. They naturally compiled and compiled and proofread them themselves, but if they wanted to print them and spread them to the world, they would have to pay for it themselves!"

"Mr. Marquis said that the author had to pay for the books compiled by the bookstore to print them?" Everyone looked at Chen Xu in a daze.

"Yes!" Chen Xu nodded slightly, "For example, you are from the Confucian Mencius lineage. You compiled and compiled Mencius's theory. The bookstore is responsible for reviewing and reviewing it and collecting it into the warehouse. However, if you spread it to the world and make it visible to others, you have to find a way. You can carve it on bamboo slips or copy it on hemp pulp paper, but this method must be very slow. If you spend some money to the printing factory, you can print and bind hundreds, thousands or even tens of thousands of volumes in ten days and half a month. Do you think he is willing?"

"Willing is willing, but it may make many people feel dissatisfied. Those with rich can print, but what should I do if those without money?" Chen Ping asked carefully.

"The way of heaven is natural, and the fittest survives. Existence is reasonable. How many things have happened from ancient times to the present, and how many books of sages have been recorded since written records, but many of them have been lost in the long river of time and cannot be found. What I do now is to compile and preserve these books that are gradually disappearing. As for how much recognition and acceptance of this book is by the public, it needs to be spread by various schools of thought and enthusiasts themselves..."

"Only those books that best represent a wide range of public opinion will be spread more widely. For those books with rare words and obscure meanings, few people will dabble and study them. Many of the truths are summarized in debates. These books with widespread circumstance and high recognition will become more colorful in a large number of readings and debates. There are many books, and a hundred books are also printed 100 sets. Some may not be enough to sell, some may only be sold for more than ten sets, and some may not even be sold for one set. This is the issue of recognition of the content of the book. We cannot force the book to others to read..."

"After all books are released, they can only choose by their own preferences. For books involving people's livelihood issues such as farming, animal husbandry, breeding, medicine, and disease treatment, the bookstore will print, sell or even distribute them for free as needed. However, for books from our sects, the bookstore only undertakes the compilation and revision of review. If you want to print, sell or distribute them for free, you can only get hundreds of disciples to collect money to purchase the book number and print the printing factory..."
Chapter completed!