let go of that priestess

Jiang Hongdou blinked, shrugged, and turned to continue building the kiln.

But after a while, while she was doing things, some questions about temperature still couldn't help popping up in her mind, and she asked Ji Cheng curiously.

Although Ji Cheng tried his best to answer and wanted to be a good teacher, he still didn't know what to ask...

No way, he only remembered those important temperatures, such as body temperature, boiling point, melting point of minerals and so on.

And most of Jiang Hongdou's questions were very nonsensical, or in other words, questions that fit her identity as a girl.

In the end, Ji Cheng could only say: "Without a thermometer, I don't know what you're asking..."

"thermometer?"

"Ah, we can't make this thing yet, but if we want it, we can make it right away."

Ji Cheng gestured forward and said: "After the kiln is built, we will unlock a series of technologies, and the high temperature of 1200 degrees is not for display.

In addition to being able to sinter lime, you can also sinter pottery that is more powerful than bisque, unlock some metal manufacturing techniques, sinter glass, and more.

The glass mentioned last is the raw material for making thermometers or barometers.

You know the thermometer, and the barometer is a tool that can predict the weather.

If we had this, we would have known about the heavy rain just now. "

"Wow!......"

Jiang Hongdou's eyes lit up: "This is such a powerful thing!

The clan worships the celestial phenomena, and decides the time of migration... well, anyway, we are now settled, this is very powerful, but it seems that it is not very useful. "

"There are many aspects to be used in the future, but indeed, our primary goal now must be burning lime."

Ji Cheng raised his head and glanced at the sky, the sun was warming up again.

He reckoned that it shouldn't take too long to build this simple kiln.

The two worked together, and this afternoon, it was almost ready to be built, and the first trial firing began.

After all, it's actually like building blocks for children, but with heavier blocks, patience, and it's not difficult.

Ji Cheng's feeling was more accurate. Before the sky completely darkened, they did set up the kiln and started trial firing.

Under the dark sky, this newly built kiln looks like a scorching monster.

The two watched from a distance.

"The power of 1200 degrees..."

Jiang Hongdou looked at it with a sigh, and then corrected it in his heart.

No, no, Ji Cheng also removed some plain bricks that were not glued together, the kiln did not exert its full power.

He said that it is about 1000 degrees now, which is the temperature at which limestone is calcined.

Of course it is not accurate, so it is a trial burn.

But that's all, it's also scary.

When I got closer, Jiang Hongdou felt that the side facing it and the back were completely two worlds.

There are twists and turns all around the firing chamber and the chimney that vents the smoke.

She has often seen this phenomenon when managing campfires, but she has never seen such a large area.

Standing there, it makes people feel uncomfortable...

......

Night falls.

After nightfall, the kiln finally stopped to cool down.

The first trial burn is over.

Ji Cheng took off his linen shirt, covered his mouth and nose, and used it as a mask, which was a necessary protection.

Inhalation of quicklime, which may have been made, can cause chemical burns.

In severe cases, the nose may be burned, and the two nostrils of the person are merged into one large nostril to inhale.

That would be too much fun, sorry, he never wants to try it.

After doing the most basic protection, Ji Cheng took another wooden stick, poked open the still warm 'door', went in and carefully shoveled a piece of gray-white stone that had turned pink after burning with a stone axe, and came out.

Returning to the girl, he put the stone on the ground, smashed it into powder, and carefully identified it with the help of moonlight.

"How is it?" Jiang Hongdou asked nervously.

Hearing this, Ji Cheng raised his head, raised his eyebrows, and gave her a thumbs up.

"It's done!?"

Ginger red beans are delighted.

Ji Cheng stood up, took off the 'mask', and nodded with a smile: "It's done! Good luck, the temperature control is very good, a success!"

"How do you identify it as unsuccessful?"

Jiang Hongdou cheered for a while, and then asked curiously: "Is this white powder enough?"

"Yes, remember what it looks like." Ji Cheng pointed, "There are three situations when limestone is calcined.

1. If the temperature is too low and the time is insufficient, unfired lime will be formed. Its appearance is easy to identify, but it is not burnt well, and it looks more like limestone.

2. The temperature is around 900 to 1000 degrees to generate normalized lime, which is the finished product now, with low surface density and high porosity.

3. If the temperature is too high and the time is too long, it will generate overfire lime, its volume will expand, and there will be glaze on the surface.

The meaning of glaze is actually glass, which is a thin layer of glass, which will be smooth and easy to identify. "

"Oh."

Very clearly explained.

Although Jiang Hongdou has never seen the other two types of underfired lime and overfired lime, he can roughly imagine it.

She nodded and said excitedly: "Then we can start building the house tomorrow!?"

"Don't worry, it's still not enough, at least there is still one step that hasn't been done."

As Ji Cheng said, he went to the kiln to shovel out some quicklime, then divided it into 6 parts and spread them out on the ground, and numbered them from 1 to 6 on the bottom with a wooden stick.

Then add different proportions of water, river sand, and clay from left to right, stir and mix, and then put two stones into these small cement piles and stir.

After finishing this, Ji Cheng threw away the wooden stick and clapped his hands: "This is called the experimental control group."

"Experimental control group?"

"Hmm, quicklime and water make slaked lime, and slaked lime and river sand and clay make cement.

And the ratio of cement is also very important, if it is not well mixed, it will not even be used.

I don't have experience with this ratio, I just know it roughly.

So divide into groups of 6 and try to see which works best.

Also, it will take 1-2 days for the cement to fully solidify, so now we have to go to bed and come back for acceptance later. "

Ji Cheng took the girl to the camp, explained as he walked, and finally said:

"By the way, during the two days I have free, my pants have to be pushed back a little...

We must first make two sets of protective gloves and tools for plastering the cement to prepare for building the house. "

Chapter 36 Let's start building the house directly

The matter of building a house is actually quite broad.

Building a shopping mall, a villa, and a castle is called building a house.

Build a square cement box of about 30 square meters, which is not too regular, which is also called building a house.

For now, they lack materials, manpower, construction technology, and they are in a hurry.

So, whether you like it or not, you have to choose the latter.

At night, in the camp, on the kang.

Before going to bed, Ji Cheng chatted with the girl about his general plan for building a house in the future, and he stretched out his hand and gestured:

"You see, almost from there to there, enclosing the kang we lie on is also the land occupied by our house.

The flue of the heated kang is connected to a chimney, and this chimney is connected with a branch in the room, which is our fireplace.

The fireplace is built with the few plain bricks we have left, which is fireproof.

You can usually cook there, and the smoke that rises is discharged from the flue.

In winter, you can also enjoy a fire and warm the house.

In terms of the overall area of ​​the house, it is not too big, but it is enough.

Then, I am not a professional construction worker, and my technology is definitely not good...

Therefore, to be on the safe side, even if the internal space is not large, a load-bearing wall is added to separate the bedroom at the same time. "

"Oh." Jiang Hongdou responded.

Fireplace, bedroom, I don't understand a few terms, but combined with the context, Ji Cheng has been gesticulating, so I can understand.

The fireplace plays the role of the bonfire in the original Damu tent, and the separated bedroom......

She blinked and said: "In the past, the entire tent of the Damu clan was the bedroom, there was no division, and all kinds of objects were placed around the edge of the tent.

So, this feeling is already very good, I don't think it will be done. "

"It's really just the basics..."

Modern high-rise buildings.

A house with convenient water grid, sewage system and so on.

Ji Cheng couldn't help but fell into memories for a while, and when he came back to his senses, he put down his gesticulating hand in a sense of loss, and stroked the girl's back:

"In a word, don't be limited to the inherent ideas, tents can't make too many flowers, but cement is very malleable, and any kind of structure can be made.

As you saw today, it's just a lump of mud that turns into hard rock when it solidifies. "

"Hmm... In that case, can we extend a little wall and eaves outside our house?"

Jiang Hongdou diverged his thinking, thought for a while and said: "The place where it extends, it extends from the side near the chimney."

"Eh? What is this for?"

"I thought, we can put a breeding room for white birds below."

Jiang Hongdou Nunuzui gestured: "The last time it rained, they were drenched very badly, so if you build a house, you should also give them a place to shelter from the rain.

Although the white bird is drowned to death, we can distribute the food ratio and eat more bird meat, but this is not in line with our long-term breeding ideas, isn't it? "

"Oh, yes!..."

Ji Cheng was taken aback, but he hadn't considered this before.

White birds without the shelter of big trees can only rely on their own feathers.

Last time, it would be more appropriate to describe them as drowned chickens...

"Understood, the side near the chimney can also be warmer, so it won't freeze to death in winter.

Well, let's make them three-sided, so there's more wind protection.

Not bad, opinions accepted~ Do you have more suggestions? "

"No, that's it, it's really good."

Jiang Hongdou smiled and said, "Besides, if we want to build something else, we don't have enough materials, right? Do we have to go to limestone mining again at this time?"

"Eh, that's right..."

Ji Cheng shrugged: "Then it's roughly settled like this, go to sleep, there are still many things to do tomorrow."

"Hmm~"