The New Civilization of Witches

Chapter 12: Shooting

Roland stood near the burning site in the backyard, waiting for the first batch of cement to be released.

The brick house he designed for cement production was fifteen meters long and four meters wide.

The front and back each have doors, the front door is made as wide as possible, so that one can easily transport materials into the house.

Instead the back door was only as wide as one person, the only use being to let Anna quietly enter the firing room.

Therefore, he also built a wall in the middle of the house, the import and export arrangements were guarded by the knights they were Carter's men, loyalty no doubt.

The production process of cement is very simple. First the limestone is ground into a powder, then mixed with clay, iron powder, then calcined in a dry or wet way.

It can be used after final grinding with plaster.

The raw material is very common, only iron is difficult to obtain and store in large quantities, the critical fact lies in the process to reach the right calcine temperature.

Roland did not remember the specific temperature required to produce the cement, even if he remembered it, he said,

he has no possibility to measure and control the temperature - he

whether it is an infrared thermo detector or a thermocouple temperature measuring gun are both unavailable, this makes cement production many times more complex.

He only knew that the temperature was almost similar to the melting point of iron, and the calcination process was also a difficulty in cement production.

In the era of less sophisticated smelting technology, maintaining the temperature of the furnace is already a problem for everyone.

The heat loss from an ordinary open furnace is too great, it is difficult to maintain the temperature at 1200 degrees.

But he also needed a high temperature resistant furnace, he had to think of how to make fireproof bricks.

Traditional cast-iron-making kilns would be forced to the melting point, the temperature might be up to standard, but the narrow space was too small for cement calcination, the report said,

Roland was afraid that the time until Demon Moon was not enough.

Therefore, Roland's design for the kiln did not have a heating measure, he only relied on Anna.

The limestone and clay fractional particles are mixed with water into a slurry, this is evenly distributed in the kiln.

Then the knights locked the door and walked away. Anna entered from the back door, her fire roasting the ground porridge until it melted along with the iron powder.

Roland was a bit uneasy, this was his first step to improving Border Town.

If he can't produce cement, building a wall in three months' time would be nonsense.

Without walls, no one would want to live in this place. Whether it is real life or fiction literature,

if you want to progress, a stable base is essential.

"Your Majesty, this kind of product can really fuse the stones?"

Carter, who was on the side of the fourth prince asked.

Although the prince had told him that this was the result of the recent research of the alchemists

Graycastle, but he's still hesitant.

After all, those people really haven't made a useful product yet.

“Who knows? After all, they said that,” Roland stretched his hand out.

The world of alchemy and astrology is known as the art of sages,

on the mainland this profession is very popular.

In general the royal family would develop their own alchemists and astrologers, to refine and predict fate.

For ordinary people, this study was too classy. Given this, Roland naturally arranged the source of the cement formulation to the alchemy head.

As for the knight chief, he had no problem.

Through the window they could see the flames gradually stop burning, it seemed like the calcination was over.

When Roland stood up and went to look,

Carter was kicked out of the park, so he waited alone in front of the back door for bricks.

The gate creaked open and Anna walked out.

The first thing Roland did was to put a robe on it, and bring him a cup of water, he said,

"how are you?"

The witch's face was full of dust,

because the processing system is wet, the amount of dust is low, the,

but the hot air needed for calcination still produces dust.

"the pulp has turned to powder."

Roland waited until the temperature in the kiln dropped quite low, then he wrapped a wet towel around his head, he grabbed the shovel and walked into the back door.

He was instantly surrounded by hot air, for some time he found it hard to breathe, the skin in his hand was instantly toasted.

Fortunately, taking a powder shovel does not take much time, otherwise if staying for a few minutes in this environment will cause a high temperature shock.

"Is this what you want?" word

Anna, who was now wearing a witch outfit.

"It seems very similar," Roland spread a fine powder on the ground, using his finger to feel its temperature, saying,

"to know for sure we need to test it."

"What's the point?"

" It is for building houses, or repairing bridges and roads, it can be used in many other places as well.

If successful, after that people will not fear the wind, or their homes can be destroyed, by cold, rain or snow."

With the other hand he patted the girl on the head, "this is only possible thanks to your help. ability."

Anna lowered her head, Roland did not know if it was an illusion or not, but he felt that the girl's breathing was getting faster after he patted her.

According to the theory, it is important to burn the grinded material together with gypsum, with this it is possible to adjust the hardening time.

But now there was no need to think too much, after a short break Roland picked up the shovel again and grasped more,

then he called out to Carter who was standing outside the courtyard, letting him prepare three powdered mixtures with sand to mix the cement mortar

The chief knight did not mind this manual work at all,

to him, doing this kind of thing many times was better than a substitute fight for His Majesty,

when he got into a fight with the other young masters while he was out on a walk with the young lady (whore) in Graycastle.

Because the raw material is not added iron powder, the color and gloss that comes out brighter than average, looks gray.

Roland spread the grout on the brick, and then placed another brick on it. The cement compaction time will be about four hours,

but taking into account the preproduction of instability, he intends to wait until tomorrow to see the results.

Second day in the morning, Roland,

Carter and Anna hurriedly rush to the shooting scene in the backyard.

When he opened the door, he saw that the cement looked like a compaction condition, the two bricks were tightly bound.

Consolidation appears uneven, in some places frost appears.

Roland crouched down, eroding the aroused frost, trying to squeeze his finger into the hardened cement,

the touch made his heart feel happy, the cement surface was firm, completely different from the touch with the ground

that is, the use of nails into scrap leaves no trace.

Carter repeated the fourth prince's actions, trying to move the stone, but he was also unsuccessful.

He even firmly kicked to the side with his foot, until the connection between the cement and the ground broke, but the two pieces of bricks were still firmly tied.

Finally, he swung the hilt of his sword at the brick, but only a small piece in the corner came off.

"It's a 'cement' effect," Carter immediately realized his role" was incredible.

Yesterday can also flow like a melted candle, just one night later like a rock.

With this kind of material, with this building the city walls will move faster.

As long as we have enough stones, we can even build a wall around the border in five years!"

"What's the point of that?" Roland did not accept it as the right way, though,

"that high wall won't stop anything.

the enemy comes from within. I prefer to turn an old wooden house in Border Town into a sturdy concrete room, he said,

so that my people no longer need to worry about natural disasters that make them homeless.

"....." The Knight Chief fell silent, he really did not expect the fourth prince with all his bad habits to say this.

going to walk - in connection with the many battles he needed to fight, science and technology were the first production capabilities.

And here, the witch is the first productivity.