In the following days, Li Feng has been busy at the brick kiln. To be exact, he was experimenting with firing things. I experimented for several days in a row, but I couldn't get satisfactory results. made Li Feng almost collapse. And today, it's a new experiment.

"Come on, Xiaohu, pick things over, Lao Tzu won't believe it, this thing can't be done."

After a few days, Li Feng was haggard, and his expression was obviously a little anxious. However, he still commanded Xiaohu to pick things up.

"Brother-in-law, can it be done this time?"

For Li Feng's instructions, Xiaohu still obeyed very much, and picked up the two baskets to Li Feng and put them down. However, it is obvious that at this moment, Xiaohu is a little shaken, after all, this thing has been trial-produced many times, but it has not been successful.

"Let's see, it's business as usual"

In this regard, Li Feng also had no score in his heart, after all, he used to know a little bit about this thing, as for how to do it, he really didn't know. Otherwise, I have been going back and forth several times in the past few days, but I have not succeeded.

However, although it didn't work, it gave Li Feng some rules. He was sure that as long as he continued, he would be able to make what he wanted. For the sake of that comfortable big house, he Li Feng could only fight.

Hearing Li Feng say this, Xiaohu didn't say anything anymore. With a small wooden scoop, start scooping up the contents of the basket. At this time, I realized that there were some strange things in this basket.

If you look closely, most of them are small stones, and to be exact, there should not be much lime burned out. However, there are some differences.

Looking at Li Feng again, it turned out to be a big stone mill. This thing. If you are a child born in the countryside, you will definitely be no stranger. In the past, it was generally used in rural areas to grind beans, make tofu, or grind something else.

However, later, electricity was turned on everywhere, what a soy milk machine. Beaters and the like are coming. This stone mill has also withdrawn from the stage of history.

Seeing that Li Feng was ready, Xiaohu immediately sent the things in the wooden scoop into the stone mill, while Li Feng pushed the stone mill and began to rotate very quickly.

Dare to be affectionate, Li Feng actually used a stone mill to grind stones?

Although this seems to be very absurd. However, the facts are in front of them, Li Feng and the others are indeed grinding stones. Because, with Xiaohu and Li Feng's very skillful cooperation, a lot of powdery things have appeared in the stone grinding tank. Moreover. Over time, more and more powder grew in the stone grinding tank.

"Alright, Xiaohu, it's almost. Walk. Let's try again. ”

Seeing that the powder in the stone grinding tank was piled higher and higher, it was estimated that it was almost enough. Li Feng immediately stopped the movements in his hand and said to Xiaohu.

Then, Li Feng took a dry wooden basin. Carefully pack the powder in the stone grinding tank. He walked aside. And there, too, there is a wooden basin with some powdered stuff in it. It's just that the color is whiter.

And after that, Li Feng's behavior was even more unexpected. He took out a handful of scales and began to weigh the powder very carefully. And, after weighing it once, I used a pen and paper to record something.

After finishing this, he took out a few small bamboo tubes, poured a few pieces of powder into the bamboo tubes, and then began to add water to the bamboo tubes, each time adding a small amount, and while adding water, he kept stirring with small wooden sticks. It doesn't stop until it becomes a paste.

And so on, after processing the powder in several bamboo tubes, Li Feng stopped.

Regarding Li Feng's strange performance, Xiaohu did not have the slightest curious expression on his face. He'd seen this happen several times. It's no wonder. He knew that he would have to wait.

Moreover, this waiting time is not short, it will take at least a whole day.

"Alright, we'll see everything tomorrow. Well, I'm tired these days, so let's take a day off. ”

After all this, Li Feng looked at Xiaohu's face, which was obviously very tired, and immediately decided to take a truce for a day.

A day is not a long time, nor is it short, but for those who are anxiously waiting, it is still a long time. However, this is just a human feeling, and in fact, time is always passing no matter what.

"Haha, Lao Tzu just said, it will always be done, isn't it? It's good, it's great, haha."

Early the next morning, there was a sudden burst of laughter like a ghost crying wolf, and when I listened closely, it turned out to be coming from the east end of the craftsman village, and it sounded very familiar.

At this moment, Li Feng was standing in the courtyard of his house, his face was full of excitement, his mouth had not closed yet, and it was obvious that the laughter just now was made by him. However, at this time, he didn't realize anything, and his eyes kept glued to the ground.

When I looked at his eyes, it suddenly became confusing again. Because on the ground, there is nothing, and there doesn't seem to be anything special.

Actually, not necessarily, there are still things on the ground. Because, on the ground, there stood several round pillars, which were not very tall and not large. There are also several bamboo tubes split in half next to it. Is it for the sake of these pillars? However, there is nothing special about these cylinders. It's not black, it's not good-looking at all, it's not conspicuous.

"Brother-in-law, brother-in-law, is it really done. Hurry up and show me."

And at this moment, there was a voice that seemed to be more excited, and as soon as the words fell, Xiaohu ran over quickly while putting clothes on his body.

In the same way, when Xiaohu came to the courtyard, he pounced on the black and short pillars on the ground, and then grabbed one of them, and then padded and pinched, and finally tried to break it, but unfortunately, even if Xiaohu tried to eat milk, he could not succeed.

However, Xiaohu was not depressed at all because of this, on the contrary, a more excited expression appeared on his face, and there was an incredible look in his eyes.

"Brother-in-law, is this what you call cement? I didn't expect it to be true, it's amazing, yesterday it was a mud made of some powder, and now it's like a stone. It's amazing."

Holding the cylinder in his hand, Xiaohu showed a look of surprise on his face.

Seeing Xiaohu who was so excited, Li Feng didn't say anything, just smiled. Thinking about it carefully, he can still understand Xiaohu's mood at the moment.

Cement, that's right, this is what Li Feng has been tinkering with these days.

"It wasn't easy, but luckily, it worked. It seems that everything is not as simple as imagined."

For the cement pillar in front of him, Li Feng had already tried it, and he knew that yesterday's experiment was a success. However, the hard work paid for this is also very huge. In the past, I only heard a little about how this cement stone is made. However, I don't know anything about the ratio of various raw materials. In the past few days, Li Feng has been experimenting.

"Okay, Xiaohu, don't hold it, don't you think this thing is a little cold. It's a gold ingot."

Seeing that Xiaohu was still holding the cement Gada, like a baby, Li Feng could only remind him.

"Hehe, I just thought, it's kind of amazing."

Hearing Li Feng say this, Xiaohu scratched his head a little embarrassed, smiled at Li Feng and said, and then put the cement pillar back on the ground.

"Actually, this thing is really a good thing, and it's very useful. Unfortunately, though, it's too much trouble to make. If you want to produce it in large quantities, there is no door. If you want to forget it, it's impossible to do it."

Cement, without a doubt, is definitely a good thing to come from, and it is extremely versatile. Building houses, roads, bridges, especially when building piers, with it, it is definitely much simpler. As for the use of water canals and the like, it is even more superb. If it can really be produced in large quantities, it will definitely be a great blessing for the whole society.

It's a pity that this thing, if it is put in modern society, does not belong to any high-tech products, and the cement of later generations can also be widely used, and the price is not high.

However, in this Tang Dynasty, it was impossible. Let's talk about how Li Feng came up with this thing.

Let's talk about the two most difficult processes.

The first is to break up large pieces of limestone into small gravel. This job alone is scary enough. There is another one, that is, the calcined mixture, which is ground into powder by stone grinding, which is another tiring work.

Not to mention the calcination of these things, these two processes alone are destined to not be produced in large quantities in this era. Even if it is produced in small quantities, it is definitely sky-high.

The reason why this is so is because, in this era, there are no such large machines to use, and it is completely manual.

Not long after Xiaohu got up, everyone who heard the movement immediately ran to the yard. After they carefully inspected these cement pillars, they were like little tigers, and their faces were full of incredulity.

"Okay, then, I'm going to get tired. Because, we still have to make a lot of cement, otherwise, it will not be enough. And as long as we get enough cement, we can build a different house when the time comes. ”

Seeing everyone's curiosity, Li Feng could only hurriedly speak. Now is not the time to be happy, the suffering has just begun.

"Okay, it's finally time to build a beautiful big house, big brother, we have to say okay, we must build a big and beautiful house, well, and be comfortable."

As soon as she heard that the house was finally going to be built, the girl immediately screamed with joy. You know, she's been waiting for this for a long time.