Smoking Qingque tribe riverside, set up a piece of grass shed, under the grass shed, is a group of five, one horizontal and one vertical alternately placed into a wall of bricks with a width of one meter, a height of one meter and a height of more than ten meters.

The brick wall runs east and west, and there is a distance of more than half a meter between the bricks, which is placed because after the winter here, there is more east wind.

This facilitates ventilation and better preservation of the bricks.

These many bricks are the fruits of the mental work of the people of the Qingque tribe during this period of time.

In the excavated circular foundation, Han Cheng also put down the last brick, and the arch with a span of two meters was also completed.

Then he called the second senior brother and asked him to come to the top and jump fiercely to test the firmness of the brick arch.

After a jump, the brick arch was as strong as ever, and a smile appeared on Han Cheng's face.

Then it took two days to build out the internal structure of the kiln with bricks and some bricks in other places with Heiwa, and considered the air intake and smoke exhaust.

After waiting for a few days and getting fruitful, people will continue to pile up soil around the kiln, and slowly cover the things that have been built before.

And the soil that was carried was tamped with the tools used to ram the wall before.

It is useful to cover the outside of the kiln with a thick layer of soil, and the biggest effect is to keep warm.

This is a large amount of work, and it has been done for half a month before it can be considered completely done.

And by this time, the rapeseed is also ripe.

Han Chengcheng asked most of the people to harvest rapeseed, and he and Heiwa walked around the brick kiln with bone shovels, not tinkering.

Do a line, love a line, three sentences do not leave the old line, this sentence is vividly reflected in Heiwa.

He is very passionate about firing pottery, and he also has a great love for various kilns.

Now facing this kiln that the whole person still feels very spacious when he enters, his expectations are even stronger than those of Han Cheng, an advocate.

Such a large kiln was something he had never thought of or dared to think of, but now it was built like this and appeared in front of him!

If such a kiln is easy to use, if it is used to fire pottery when the time comes, how much pottery can be fired in that kiln!

Looking at the brick kiln that was emitting green smoke from the high top because of the internal ignition for drying, Heiwa thought longingly......

After dozens of acres of rape were harvested to the field, the newly built brick kiln was also thoroughly dried, and under the command of Han Cheng, 500 bricks that had been made for a long time were sent into the brick kiln.

Then start igniting the kiln.

It took so much effort to make a good brick kiln, and the capacity is naturally more than that, but this is the first time that a brick kiln is used to burn bricks in the real sense.

The firewood required to burn such a kiln is far from being comparable to other small kilns, and it is directly added to the fire mouth in whole bundles.

The flames below the kiln were blazing, and green smoke was rising from above.

This kind of fire lasted for two days and two nights before no more firewood was added to it.

The fire mouth was sealed, and everyone who had already prepared according to Han Cheng's previous order began to use clay pots to pick up a load of water from the small river not far away, came to the top of the brick kiln, and then poured jar by jar down the mouth left behind.

The thick soil outside the brick kiln insulates the heat, and even though the temperature inside the brick kiln is frighteningly high, people who climb up and down the outside of the brick kiln with water only feel that the soil is slightly hot.

The cool water of the river poured into the brick kiln from above, and met the fiery air and other things inside, producing a large amount of higher temperature gases, which filled the kiln......

After Heiwa poured a jar of water, the person was still a little stunned, he didn't understand why he suddenly had to pour water into the kiln.

In this way, won't the bricks in the kiln be broken?

In addition to this result, he has been dealing with pottery for many years, and he really can't think of any other results.

This kind of thing, the Son of God should know better than himself, but he still let it happen......

This is exactly what makes Heiwa even more confused.

Is it possible to operate like this, and there are other changes that you are not aware of?

He crouched there and took the water from someone else, and thought to himself what seemed unreasonable and incomprehensible.

Of course, there will be other changes, without the irrigation process, the green bricks will not be fired.

The reason why Han Cheng stubbornly wanted to burn the green bricks was not because the Qingque tribe also brought a green brick and wanted this green brick to match the Qingque tribe, but under such conditions, the green bricks were stronger than the red bricks.

The common red bricks in later generations, the bricks are extruded by machines, and the density of the bricks themselves is very large, while the bricks of the Qingque tribe are purely handmade.

Even when making bricks, no matter how much effort is used, the density of the bricks that come out is far less than that of the bricks of later generations.

Such bricks, the red bricks fired are easy to crispy, and under the same conditions, they are not as strong as the green bricks.

Green bricks will gradually be replaced by red bricks in later generations, and they are almost on the verge of extinction, which is not unrelated to its firing troubles.

After the use of various machines in later generations and the change of kiln technology, a kiln of red bricks can be produced in three or four hours.

It is impossible to reach this speed with the green bricks that are still irrigated and stuffy.

And due to the movement of the machine, the fired red bricks are not worse than the green bricks, and even stronger than the green bricks, so it is natural that the green bricks are replaced.

Of course, under such conditions, for the Qingque tribe, green bricks are still the first choice.

"This way the bricks will be stronger and easier to use."

Han Cheng touched the bricks mixed with sand and gravel, and said to Heiwa, who had sealed the kiln and came down to inquire.

Will it be stronger?

Are you sure it won't fall apart?

Heiwa thought with some doubts in her heart, but she didn't ask again, because he knew that what Shenzi said was generally not wrong.

But what is the truth in this?

Heiwa scratched her hair, looking a little distressed.

The kiln was fired for two days, the third day was irrigated, and then the kiln was stuffy, and on the afternoon of the fourth day, in the anticipation of the Qingque tribe, the brick kiln was finally opened!

Looking at the mouth of the kiln filled with hot air, Han Cheng also clenched his hands a little nervously.

Although he knows what the finished product of the brick kiln can be fired in the end, he still has no bottom about whether the brick kiln he built can fire qualified finished products, after all, this is the first kiln.

Han Cheng shouted to the black baby who was anxious to know the result and wanted to enter the kiln, and waited here for a while, and after making sure that the inside was ventilated, he put a mask made of linen cloth that had been folded several layers to his mouth and went to the brick kiln.

Black Baby: They are dressed in the same way.