Chapter 56 Cement and the City Wall

Although he made up his mind to go to sea, before that, Su Zhen still had to prepare. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

First of all, there is the problem of boats, although Ogilis has boats, but they are all goods that are not as good as even small fishing boats, which are related to his own life, Su Zhen naturally has to prepare properly, not to mention waiting for the battleship to be manufactured, at least waiting for the battleship to be manufactured!

So the sea was set by Su Zhen for three days.

In addition to going to sea, Su Zhen's second major event is the city wall. With Camp Ogris and Camp Jones pretty much dealt with, Sue returns to Tempest.

Prepare to make the key thing to building the walls - cement!

The material of cement is easy to find, and the formula is still a little impressive. Limestone, clay and iron ore powder. The limestone seems to be eighty or ninety percent, and the iron ore powder only needs to be added a little.

The material is easy to find and very cheap, the key is the high temperature of making cement, Su Zhen remembers that it takes about 1300 degrees or more. Cement is actually already available in the alchemist's laboratory, but it requires a fire mage to make it, and what is the status of a fire mage. Therefore, cement is unlikely to be popular.

In ancient times, the way to create high temperature was nothing more than charcoal fire, this charcoal fire was up to more than four or five hundred degrees, which was a great seven or eight hundred degrees, and it could reach a high temperature of more than 1000 degrees after using the bellows, which was barely usable.

However, this kind of bellows is too labor-intensive, and high-performance bellows are not easy to design in a short time.

In order to think about it in the long term, but also to save costs and speed up production, Su Zhen needed to use a more advanced method - such as using coal as fuel, and then design a relatively simple bellows with a windmill to drive the bellows.

In fact, the empire has already begun to use coal, and windmill-driven bellows, although rare, are also available.

Su Jin decided to open a kiln factory near the Tempest Camp, which happened to have abundant wind resources and was used to drive the bellows for windmills.

After Su Zhen informed Song Yuhua of his thoughts, Song Yuhua immediately patted his chest, saying that he took the job.

The remaining problem is the exploration technology of coal mines, and this Su Zhen is really not in the way. The methods used in modern coal mines basically require some high-level equipment and talents. He didn't know how to explore coal mines.

Fortunately, as a scout, Zhou Ke has some experience in coal exploration.

When Song Yuhua's bellows was designed, Su Zhen tinkered on the spot for a full day to get the 'cement', and after another day of improvement, the cement looked good.

Of course, this was just Su Zhen's feeling, and for the others, especially Song Yuhua, they were almost a little ecstatic.

On the other hand, Zhou Ke said that he had found a coal mine on his first day and that the location was near the Black Rock Mine. According to Zhou Ke, this coal should be shallow coal, and the difficulty of mining is very low. Su Zhen immediately personally ordered someone to dig a well for mining, and sure enough, he got coal with relatively high purity.

By the third day, the mine was already in production. The kiln factory designed by Song Yuhua is also already under construction, and everything is going in the direction predicted by Su Zhen.

On the outer floor of the kiln, only the blower was driven by a row of windmills outside the wind camp, constantly sending fresh air into the coal, and the black coal emitted a scorching heat. Countless clay was continuously burned into bricks, and in the inner layer of the kiln, a certain proportion of limestone, clay, and iron ore powder was mixed together and submerged into powder, which was then shoveled into a high-temperature furnace by workers with shovels. In the high-temperature furnace, the wind in the bellows kept blowing in, and the coal burned more and more red, exuding a scorching high temperature. Under the burning of high temperature, cement raw meal slowly becomes cement clinker, and the temperature of this process is very critical, and the temperature must be above 1300 ° and below 1450 °.

When the temperature slowly cools down, after some simple processing, a steady stream of cement is produced.

By the walls of the tempest camp,

A group of workers are piling up the freshly calcined bricks with cement according to a certain law, and from this piece alone, it really has a bit of the meaning of the city wall.

The city wall designed by Su Zhen was completely designed according to the ancient Chinese standard city wall, and even the moat, Su Zhen planned to dig after the city wall was built.

The structure of the ancient city walls is very exquisite.

In addition to the walls and gates of the main trunk, there are various things that are used to strengthen the defenses.

First of all, there is a concave pheasant wall on the wall, and the raised part is more than a person high, which is used to hide from the sharp arrows and rocks of the place.

There are generally tall towers built at the city gates, overlooking the whole field, which is the wartime command center of the entire city, and there are soldiers and weapons in it.

Then, every 70 meters or so, at a place where the outside of the wall protrudes seven or eight meters, a two-story tower-shaped horse face is built on the wall. There are weapons in the horse face, and the use of the horse face is to attack the dead corner under the city wall that the soldiers cannot attack, and at the same time increase the fire intensity of the attacking enemy.

Finally, there are the corner towers at the four corners of the city wall, which are mainly used by the defenders to climb the city to observe the enemy situation and strengthen the defense.

In addition to these, Su Jin also prepared to build a square urn city at the weakest defense gate. That is, in front of the city gate, a small closed wall was built around the gate, and the gate was surrounded by this closed wall.

Su Chen's side is quietly building a city wall, but Martha's side is not having a good time, whether it is the town of Florida or the town of Martha, at this time they are surrounded by the absolute strength of the lord. Among them, Martha's town is fine, and the town of Floris is a little sad. Surrounded by them, they can't connect with the outside world.

On the Bering Sea, a hugely damaged steel cruise ship is drifting slowly in the darkness.

There seems to be some lights on the cruise ship, which is particularly dazzling in the quiet night sky.

It's just that it's so quiet, there is no sound on this cruise ship, only the occasional whistling wind blowing in the sea, which makes people panic.

Kamei is an ordinary fisherman, and he was a little unlucky today, and he didn't catch a fish all day. This made Kameh feel bad, although the new battalion commander was a very good man and cut their taxes by half, it did not mean that he had something to eat if he could not catch fish. His eyes were staring at the surface of the sea without blinking, the net he had spilled to be exact. If there is nothing this time, Kamei will have to wonder if there is such a thing as fish in this area.

Wow~~

There's movement, and it's probably still a big guy.

Kameh smiled warmly, as if he saw his five-year-old calling for his dad in a childish voice, and then happily eating meat.

Kamei hurriedly collected the net and pulled hard into the boat!

Boom~~~

The movement under the water was getting louder and louder, and Kamei panicked. This fish is too big, but it's not a water monster.

Probably not! Isn't that thing 50 kilometers away from the coast, although some of them occasionally come to the near sea, but this is less than 10 kilometers from the coast!

Emboldened herself, Kamei worked harder. He didn't use brute force either, and on the boat, too much force would cause the boat to capsize. For a veteran sailor, Kame is very good at slowly wearing down the strength of his opponents.

As time passed, Kamei gradually gained the upper hand and slowly pulled the big fish up.

The fish was almost twice the size of his seven-year-old child, and it must have been some valuable fish. With that in mind, Kame leaned closer with the ship's lamp to see what he had pulled up.

"Ahh When Kamei saw this, he was so frightened that he dropped the lamp in his hand to the ground and fell backwards.

The big fish in front of him turned out to be a seventeen or eighteen-year-old boy, a boy whose whole body was bitten and his flesh was blurred!

It's the corpses!

No, the boy's hair was azure, not the group.

Camme thought so, her hands trembling as she prepared to drop the little boy off the boat.

At that moment, the boy's hair suddenly changed and turned red, and then the boy's body squirmed on the boat, causing Kamei to scream in fright.