After lunch and a rest, the people of the Green Bird Tribe did not go to work as usual, but stayed in the cave, looking at the Son of God and then at something surrounded by several wooden sticks not far outside the cave.

The Son of God had said before that they would be able to see the results after a rest, so they were looking forward to it very much. They wanted to see what kind of gratifying changes this ordinary wood ash would undergo after passing through the hands of the Son of God.

After Han Cheng woke up, he saw that everyone was looking at him from time to time, so he didn't delay any longer. He scooped some clean water from the water tank and washed his face. After making himself more awake, he led everyone out of the cave to see the result.

Four and a half days had passed since the two wood ash cement ingots were manufactured.

When Han Cheng checked it the day before yesterday, the cement ingot had already dried and solidified. However, considering that it might be different from real cement, and Han Cheng wanted to see its better side, he waited until noon today before deciding to unveil it.

Several wooden sticks used as molds were stuck by the solidified cement ingots. Han Cheng used a thinner stick to pry them open. Looking at the different sizes of bark on the sticks, Han Cheng couldn't help but feel happy. This thing can be used as an adhesive!

When the tree sticks were removed, the cement ingots in the middle were completely exposed. Han Cheng first inserted a thin stick underneath and moved it back and forth to loosen it, then he lifted it up with force.

Whether it is mixed with sand or not, nothing will break during this process.

Han Cheng picked up a wooden stick and tried to hit the piece without sand added. It made a "thump thump" sound, somewhat similar to the sound made by a woodpecker pecking at a tree to catch insects.

This unusual cement ingot was stronger than he had imagined. Only after he had used all his strength to hit it seven or eight times in a row did the cement ingot, which he had leaned against a stone, break in the middle.

The people watching were even more confused. The Son of God spent more than four days making these two things, and he was very careful to take care of them before, fearing that someone would hurt them. How come he smashed them with a stick after making them? This...

Han Cheng did not stop after breaking one piece, and launched a unilateral attack on another cement ingot mixed with sand.

After being hit by seven or eight sticks, Han Cheng's hands were numb, and the cement ingot only fell off with some residue.

Cement ingots that have reached this level are sufficient for use!

He stood up and smiled at everyone.

Although most of the people surrounding him did not understand what the Son of God had just done, seeing how happy he was, they also understood that it was a success.

Having been waiting for a long time, they immediately became excited, especially the children who had been waiting here for the past few days. They were even more excited and happy.

Wu, who likes to think, was driven by this atmosphere. Although he was also excited and couldn't suppress it, he was still full of doubts. He felt that he was really old. In the past, he could more or less guess the intentions of the Son of God. But this time, the Son of God had already completely made something out, but he still knew nothing about the purpose of this thing...

The eldest brother was also confused. He often built houses, so when he saw this stone-like and regular object, his first thought was to use it to build a wall. But then he shook his head secretly, because it was too troublesome to build a house with such a thing, and it was far less convenient than using stones or rammed earth.

Han Cheng had already seen through everyone's doubts. He stopped these people from getting excited, then turned around and took four tiles stacked two by two from the edge of the mountain not far away.

The tiles are sandwiched with wood ash that has completely solidified after being mixed together, and it looks like a strange-looking chocolate sandwich cookie.

This was what he had made before. Originally, he just wanted to make two cement ingots for experiment and comparison. Later, he changed his mind and realized that the biggest use of cement was not to make cement bricks, but to make seams for the edges of the roof. So he made some more and made these two special 'sandwiches'.

Han Cheng first tried to pry the two tiles apart with his hands, and when he failed, he handed it to his eldest brother and signaled him to use force to pry the two tiles apart.

When the eldest brother saw the two tiles that Han Cheng brought together, he immediately guessed something.

He looked at Han Cheng with some surprise, and Han Cheng smiled and nodded at him.

The eldest brother held a piece of tile in one hand and began to apply force slowly.

After he had used considerable strength and the two tiles were still firmly stuck together with no signs of separation, he became even more delighted.

“Crack!”

A slight sound was heard, and a piece of the tile could not withstand the great force of the eldest brother and was broken off, while the rest of the tile was still firmly stuck to another tile.

"Son of God!"

The eldest brother held the broken pieces and two tiles stuck together, looked at Han Cheng and said excitedly.

He has completely understood the purpose of the Son of God making this thing. In the past, when building houses and piling up stone walls, they only used mud to fill the walls, and the walls were very strong. Now, using this thing that is so sticky that tiles cannot be broken apart to build walls, wouldn't the houses be even more solid?

There is a saying that goes 'Speaking of the East or the West, he always talks about his own business'. In the past year or so, the things that the eldest brother has dealt with the most are walls, deer pens, and houses. When he saw this magical thing made of wood ash, of course he immediately associated it with this.

Of course, this is also related to the fact that Han Cheng used a few tiles for the experiment.

Next, the tiles that were glued together were passed around in the hands of the people of the Qingque tribe. Everyone was amazed at how the wood ash, which was originally soft and shapeless, became so solid after drying and was able to stick two tiles together so firmly.

The eldest brother and Tietou were the ones who felt the deepest.

When I saw the same thing, I would just sigh at the waste of fertilizer. However, the Son of God was able to find such good things from it. One cannot help but admire the wisdom of the Son of God.

Next, a few people with superb craftsmanship stayed behind to wash the wood ash, went to the river bend downstream and carried back a few loads of sand with a shovel, and then began to mix cement. They removed all the tiles that had been covered on both sides of the roofs of the three rooms that had been built, removed the mud on the tiles, and then used cement to build the walls and make the seams.

The rest of the people who couldn't help went out and continued to work on turning the soil and making fire to open up the wasteland. By now, the Qingque tribe didn't keep many idle people.

(I always feel that this chapter is not very good. After revising it for a while, I still can’t quite satisfy myself… Comrades, please be patient. The matter about wood ash cement has come to an end. I will start something new tomorrow. Let me give you a small hint first. It is a crop.)