I am a chief in a primitive tribe

Mu Feng explained for a long time, but Lihu was still a little ignorant.

In desperation, he had to personally take them outside to choose the trees, and instructed them to cut the wood flat and bundle it, and finally even how to use the stakes himself.

Watching four or five people erect a big stump and smash it on the ground, the dull sound of "bang bang bang" continued to sound, quite a sense of déjà vu of the modern industrialization process.

After the stake fell down one by one, the potholes in the ground quickly became flattened.

By noon the next day, the foundations of the houses to be built by the whole tribe had been tamped.

Lihu asked, "Great Chief, what are we going to do next?" "

Well, now let's go to Mingguang and transport the soil he dug up to the tribe. Then go to the back mountain to pick up the thick black bark bamboo and cut it off, leaving a part of the thick one, and the rest of it is cut into three pieces, and each bamboo is divided into four pieces.

"In addition, bring a few more people and collect all the ashes from the tribe. "

Yes!" Lihu agreed.

Cutting black bamboo is all too familiar to the clansmen.

It wasn't too difficult to collect the ashes, as I had just collected them a few days ago.

What made Lihu wonder in his heart was that he would do something every time the Great Chief asked him to do it, but he didn't know what he was doing these things for.

Especially now that Mu Feng asks him to chop bamboo and collect plant ashes, he can do it, but he doesn't know what the connection between these two things is.

Before he could react, Mu Feng said again: "If you take out the hay stored by the tribe, you also need to use it!"

"Yes!" Lihu hurriedly responded.

Although he didn't know why he was doing these things, he knew that the Great Chief had his own reasons for letting him do these things.

Mu Feng naturally made sense to do this, he wanted to build a house for the tribe that integrated residence and protection - Tulou!

Tulou was a kind of house built by the Hakka people in southern Fujian in ancient times.

This type of house is a kind of mud made of sandy clay mixed with clayey sand, which is molded and rammed into a wall with plywood, and the rest is made of wood.

The tulou is an outer layer of soil and an inner layer of stone, which is windproof, waterproof and more fireproof - the authentic tulou can also prevent earthquakes and typhoons.

It is such a house that Mu Feng wants to build, an existence that integrates residence and defense.

It's certainly not as simple to build as an adobe house, but once built, it can be inhabited by the tribe for many years or even generations!

After the foundation is laid, the wall foundation can be stacked directly with stones mixed with hay and mud.

The upper wall can be molded with black bamboo as the wall column, molded with black bamboo pieces, put clay in the middle, add sand and gravel and broken hay to form the "concrete", and then vigorously tamp it, and it will be solved.

The problem is that the inner walls need to be built with stones or bricks, but the stones are stacked into the walls, not only the solidity, but the stability is a big problem.

The main reason is that he doesn't have cement at the moment.

If he had cement, the problem would not have been a problem.

In desperation, he had to turn to the system and exchange a method of homemade cement from the system.

This cost 200 achievement points, which is not half a point more expensive than the 50 achievement points of Jing Yulu.

But fortunately, Mu Feng is now "wealthy", with 3,400 points of achievement and a lot of ambition.

After exchanging the method, he felt for the first time that it was worth exchanging it, because there are many ways to make cement, and there is one that can be used by wood wind now-the method of making plant ash.

The materials required for this method are also simple, and it is not difficult to implement.

So he asked Lihu to gather all the ashes of the grass and trees in the tribe.

But he was surprised to see the ashes of the grass and trees piled up like small mounds.

"How can there be so many?" Mu Feng looked at Lihu.

"Actually, we used to use these things to bury manure...... "Lihu scratched his head a little embarrassedly and didn't continue.

Mu Feng didn't think so, nodded and said in relief: "Fortunately!"

So he began to make his own cement according to the method he had exchanged.

First, the floating ash of the skin of the plant ash was sieved out, and then the largest large stone cans in the tribe were filled with water, and the plant ash was gently poured into the stone jar in batches for secondary separation.

In this way, the light ash in the plant ash floats to the surface, and the heavy one, that is, the one with a higher calcium content, sinks to the water.

After doing this, he gently tilted the stone jar, poured out the water little by little, and then kneaded the ashes of the plants and trees that had become "thin mud" mixed with water into a ball, kneaded them tightly, and put them in the fire one by one and began to burn.

Of course, doing these are all wood wind demonstrations, and they are completed by the tiger and the clansmen without any problems.

Soon, one by one, the gray gray grass and wood ash cement was completed.

Because it is done by dozens of people at the same time, the amount of work done is considerable.

It was a waste, so Mu Feng first found a few cement eggs and mashed them, and glued them together with the soil on the ground, the sandy soil, and the red acid soil at the foot of the mountain for experiments.

It was found that the hardest clods were made by mixing acid soil with sandy soil and cement.

To some extent, such clods are close to some of the concrete of later generations.

Mu Feng was excited, such cement, plus stones, sand and gravel, the earth building he wanted to build as one of the residences and defenses, it was all right!