Chapter 334： Successful trial production of cement

Organizing the army south to Italy is not anxious, because, according to Archbishop Rovere, it is difficult and time-consuming to install spies in the Borgia family, which is good at conspiracy. After all, the Borgia family is the most conspiracy family. Installing spies in such a family really needs to be careful.

So, Archbishop Rovere estimates that it will take another one to two years before he can send his spy to the father and son of Alexander VI and get a chance to poison him. So Marin has time.

But in the industrial sector, the development of the forging industry has been restricted because artificial high reservoirs have not been built. Whether it was the old John who cast the cannon, the craftsmen who made the muskets, and those who forged the plate armor, they urged Marin to hurry up and build an artificial high reservoir.

Therefore, Marin sent his cronies to the secret base for burning cement to urge the craftsmen. These cement-fired artisans are not experts or scholars, but serf artisans under the control of Marin. Originally, these people only burned bricks and had extensive kiln experience.

Actually, these people are OK to do something as instructed. But asking them to create inventions really overestimates them. The reason why Marin gave them the task of firing cement was that they valued their serfdom and it was not easy to leak.

However, because of their limited talents, these serf artisans were slow in studying the formulation of cement. In fact, Marin has clearly given the ingredients and scope of the ingredients, they just try it and use it without any trouble.

In fact, this is indeed the case. According to the ingredients given by Marin, they quickly fired qualified cement according to different proportions.

If they just need ordinary Portland cement that is not waterproof, they can already make a difference. However, what Marin wanted was a waterproof fly ash cement that could be used to build reservoirs.

Therefore, according to the proportion range given by Marin, they fired a dozen kinds of fly ash cement with different proportions. Then they built a pier by the sea with a dozen different types of fly ash cement. The next thing is to wait ...

After all, to test the waterproof effect of cement, it takes time to wait. In this era, there is no time-saving test method for corrosion resistance.

马 When Marin sent someone to urge, these artisans ran to the beach in person to observe the cement pier carefully. After all, these docks have been built for several months, and their anti-corrosion ability can be seen by comparison.

After a day of careful observation, the craftsmen finally chose the best proportion of fly ash cement with the best waterproof and corrosion resistance.

The result was sent to Marin's desk ...

"Hoo-finally succeeded, not easy!" Marin was relieved. During this time, those artisans who desperately needed a hydraulic forging hammer kept sending representatives to apply for urging, and Marin had a headache.

Whether it is a medieval craftsman or a scientific researcher of later generations, there are some thorns. The scientists who are immersed in the ocean of science and the great craftsmen who are immersed in craftsmanship have only career in their eyes, and they don't pay much attention to the big Count Marin. Marin can't take these technology bulls, after all, Marin still counts on them to serve himself. Switching to an ordinary little craftsman, who dared to fangs in front of Marin, had been dragged out and hit hard. Moreover, people came to trouble for Marin's own industrial needs, not for their own treatment, Marin did not have the same thing, but can only coax.

Now that the cement has finally been successfully fired, it is natural to start a plan to build an artificial high reservoir ...

But Marin hesitated for a long time about where the cement plant was built ...

Built in the vicinity of Orich, Marin is sure to resist others' puppets and prevent enemies from obtaining recipes. However, this also shows the world that the secret of "they have a cement formula".

You must know that the role of cement is of great strategic value. With the use of steel bars, reinforced concrete buildings can withstand any shelling of this era, and they are stronger than stone city walls.

Such an important technology, others know it, and still do not steal the technology? At that time, it is absolutely impossible to prevent.

So, Marin finally decided to build a cement plant on the island to prevent outsiders from seeing ...

Alas, Marin had long thought about it. When the cement was made public, it was called volcanic ash, and it was lying that it had been transported from Italy.

In fact, some volcanic ash does have the effect of cement. In ancient Roman times, the Romans did use volcanic ash to make Roman cement.

如此 The reason for this is because the type of pozzolan that can be used as cement, the amount of limestone and ordinary soil exactly match the cement ratio. In addition, the temperature below the crater is extremely high, and the environmental effect is similar to the inside of the cement kiln, which naturally creates a unique cement volcanic ash.

In fact, in many buildings in ancient Rome, the structure of hydraulic volcanic ash cement was used. Therefore, this reason makes sense. Moreover, in Italy with many volcanoes, many volcanic ash suitable for cement can be found. Of course, because the ratio is too arbitrary, the quality cannot be guaranteed.

It happens that Marin needs fly ash cement, which requires a large amount of fly ash produced by boiling salt. In addition to limestone and fluorite, ships need to be sent to Hamburg and Bremen to buy cement kiln on the island, which is convenient and hidden.

Moreover, after the cement kiln is built on the island, after the cement is successfully fired, it can be shipped to Emden, and it is falsely claimed that it was volcanic ash from Italy ...

As for the island on which the cement plant was built, Marin quickly made a choice-or Baltrum ...

Before that, Marin had built New Salt City on the southwestern corner of Baltrum Island, built a battery there, and deployed a trusted defense force.

However, the area required to cook a salt base is actually not large. The entire salt base only occupies the southwest corner of the small island of more than 6 square kilometers.

Therefore, there is a lot of open space on the island ~ www.novelhall.com ~ can be used to build a cement plant. And in order to facilitate the needs of workers, in the end, the cement plant was naturally built on the south bank with fresh water resources, and to the east of New Yancheng in the southwest corner ...

Umarin picked a group of serfs who were good at burning bricks and sent them to Baltrum Island with their families to begin the construction of cement-fired shaft kiln and workers' houses. After the first batch of cement has been successfully fired, build a large fence and smear the cement ...

Then, the cement road from the cement plant to the salt cooking center must be paved. Because there is only a good deep-water pier on the island.

In the future, the coal burning required by the cement plant will be obtained directly from the salt cooking center, which will be imported from Newcastle. The fly ash can be obtained from its own vertical kiln in addition to the salt cooking center. As for limestone, clay and fluorescent Although the stone was shipped from Hamburg and Bremen, Marin did not plan to ship the material directly to the new Salt City terminal on Baltrum Island, but first transferred to the Norden terminal and then sent a credible ship Ship it to New Yancheng Pier. Similarly, after the cement is produced, it is first transported to the port of Norden by secret ships, and then transported to Emden ... This can greatly reduce the risk of being discovered at the base of Baltrum Island.

At the same time, Marin will build a fleet in the future, cruising around Baltrum Island, sinking any ships trying to approach Baltrum Island to protect the island's salt cooking center and cement factory secrets.

The arrangement of the cement plant and the construction of the artificial high reservoir can naturally be put on the agenda. Marin asked the craftsmen to choose the location of the reservoir and arranged a large number of laborers to start laying the foundation. As for the bricks and gravel needed to build the reservoir, Marin has also started sending people to place orders. As soon as the foundation is laid, the cement of the cement plant will begin mass production and be delivered to the construction site, and the construction of the reservoir can officially begin ...