I was engaged in infrastructure construction in the Han Dynasty [Transmigration Book]

The dumb slaves at the scene squatted aside and trembled in fright, while Miao Rui and Bi Gao rushed to Liu Tan at the first moment, and tried to drag him away forcefully.

Liu Tan: ...

Although the cement will expand when it meets water, it will not have such a violent reaction, so... there must be some steps in the middle that he forgot.

I have to say that the effect of spraying steam in winter is... quite nice, as if putting a large piece of dry ice.

After the steam was finished, Miao Rui asked tremblingly: "Your Highness...just...was a god coming just now? Are you inviting God?"

Liu Tan:? ? ? ? ?

It's a pity that you have such a big brain and don't write a storybook!

Liu Tan didn't want to discuss the issue of immortals with him, but just stood there thinking hard, what link went wrong, and he even asked someone to send him a sample of those fine powders.

Miao Rui and Bi Gao immediately tried to persuade: "Your Highness, it's too dangerous, why don't you watch it?"

Liu Tan waved his hand: "You don't understand, this is a normal phenomenon, if you don't add water, you'll be fine, stop talking nonsense, bring it here quickly."

The two of them couldn't resist Liu Tan, so they could only put the mixed fine powder on it.

Liu Tan began to rack his mind about the chemical knowledge that he had almost forgotten, and suddenly remembered that when he was reading a certain tutorial, someone once said that cement is clinker.

The so-called clinker must have been burned with fire!

Liu Tan patted his head, feeling that he had neglected such an important matter, so he turned to Miao Rui and asked, "Is there any iron smelting place in Zhuangzi?"

Miao Rui said cautiously: "Yes, what are you going to do?"

Liu Tan clapped his hands and said, "Send all these things to me for burning!"

Miao Rui and Bi Gao had question marks all over their faces, and Bi Gao said, "This... isn't a stone still a stone if it is burned?"

Liu Tan sighed: "I don't know how to explain this to you, anyway... do as I said, oh, the temperature... tsk, this is hard to master, first let them try to burn them all with different fires Bar."

Liu talked about the fact that he finally discovered that in this era, it is not just a question of the level of science and technology, but that there is no foundation for the development of science and technology at all!

Even if someone has achieved something in a certain area, but there is no systematic framework, which makes it impossible to achieve analogy unless there is a real talent.

So if he really wants to tinker with more things in the future, the first thing to do is probably to establish a complete scientific system first.

Liu Tan pondered for a while and felt that this kind of thing is not something he, a liberal arts student, can do, but he can put it on the agenda, anyway, any emperor in the past dynasties revised books by himself!

Miao Rui and Bi Gao looked at each other and couldn't help Liu Tan. The most important thing was that Liu Tan's reputation was better.

Everyone can't understand what he is doing every time, but in the end he can always come up with something unexpected.

All the work is done by servants, all Liu Tan needs to do is sit there and think hard, is there anything else that he has ignored.

Then it was Miao Rui who reminded him whether he should go back tonight.

Liu Tan simply asked someone to send a message to the palace, saying that he would not go back tonight.

Anyway, he had a reason, so he might as well hang out outside, Chen Ajiao should be used to it too.

Liu Tan stayed in the manor and waited for the news. This night, he dreamed that the steam sprayed out from the mixture of cement and water created a rainbow, and then...someone walked out of the steam and was mistaken for a fairy. Just when he was surprised When I was there, I took a closer look and found that the one who came out was actually Lu Xuan.

Immediately afterwards, Lu Xuan smiled at him and stretched out his hand, "I'll take you to the grassland."

Forget it, the next moment the camera turned, he was sitting on the train with Lu Xuan and started eating hot pot and singing, it was still a self-heating hot pot!

Liu Tan woke up sweating. After waking up, he hugged the quilt and reflected on the bed. He felt that this dream was outrageous!

Well, why dreamed of Lu Xuan?Could it be because Lu Xuan had set off to return to Little Wusun two days ago?

On the day Lu Xuan left, Liu Tan didn't go to see him off. The real farewell had already been done in private, and it would be nothing but reluctance to do it again.

Of course, dreaming of Lu Xuan is not the most outrageous thing, the most outrageous thing is how did the self-heating hot pot come out?

He turned his brain that was not sober in the early morning, and then realized, oh, the self-heating small hot pot seems to use quicklime.

No, did he have something to do with food?

He is working on cement. This is something that improves everyone's happiness index. In a big way, it is the foundation of infrastructure. Why does it have something to do with food?

But thinking about the self-heating hot pot...it's quite attractive, but it's not impossible to get it. He decided that if the cement didn't work, he would offer the self-heating hot pot to Liu Che.

The only sequelae would probably be to make him feel like a foodie, but it doesn't matter, why should he be so motivated when he is already a prince?

When Liu Tan was sitting on the bed thinking, Miao Rui walked over lightly and said, "Your Highness, do you want to get up?"

After having such a dream, it seems that I can't fall asleep any more, so I just get up.

After he got up and finished his breakfast, there was also a result.

Liu Tan was very surprised and asked: "It's made so early? Are you not sleeping?"

Miao Rui said with a smile: "I know you are in a hurry, how dare you let them sleep."

Liu Tan: ...

The breakfast he had just eaten suddenly felt unsavory. He didn't want to oppress the working people, but he couldn't say that Miao Rui and the others did something wrong. Feudal society seems to be like this, especially now that there are still remnants of slave society.

Liu Tan could only calmly say: "In the future, I didn't say that I need something urgent, so don't do it like this. Don't worry, I won't punish you."

Originally, Liu Che didn't say when he wanted it, so it would be fine if he gave it before he left.

Calculating with fingers, the imperial court and Da Wusun still have to argue about how to welcome the bride, how much dowry the big man will bring, and how much Wusun will give as a bride price.

But even though it was Wusun who asked for marriage, it was also a big man who wanted to get married more, so the dowry must be more than the dowry.

What Liu Tan wanted was to get his career on the right track before he left, and he would become a billionaire after he got back!

Miao Rui immediately agreed, and Bi Gao who was next to him also catered to him and said, "Your Highness is really kind-hearted."

Liu Tanxin said that Zhaixin's benevolence is not counted, but that it is unnecessary.

But when the finished product was put in front of him, he found that even after burning, he couldn't tell which was the standard clinker.

In the end, I can only use the most stupid way, try one by one!

To be honest, when those dumb slaves add water to these things that don't know if they can be called cement, their hands are shaking.

Although yesterday's massive steam explosion didn't hurt anyone, on the one hand, it was too loud, and on the other hand, people are always full of fear of the unknown.

Seeing their trembling looks, Liu Tan wished he could roll up his sleeves, but as soon as he stood up, Miao Rui and Bi Gao held one arm and pressed him down.

Liu Tan's face was blushing and he didn't break free. He could only admit that he was a war scum.

Seeing the movement in the pavilion, the dumb slave thought he was being blamed, and hurriedly poured water into it.

This time it was much calmer, and there was no steam spraying again, and after mixing, one portion was already in a state very similar to the cement that Liu Tan had used before.

Liu Tan quickly pointed to the copy and asked, "Which kiln fired this? Is there any record?"

Miao Rui hurriedly asked someone to ask, and the answer he got was that it all depended on the experience of the foreman.

After hearing this, Liu Tan said, "Give me a reward, and I will follow this experience in the future. Well, no, we still have to come up with standardization."

If cement is successful, it will definitely need large quantities in the future. How can it be done by only one person?No matter how many veterans he can recruit, it won't work. Everyone's eyes are different, and judging by experience alone is too easy to cause trouble.

So there must be a thermometer that can withstand higher temperatures.

The thermometer is good to say that the temperature of metal forging is much higher than that of firing cement. At least steelmaking is about [-] degrees higher than firing cement.

The problem is that the temperature above [-] degrees is not easy to control. Of course, you can continue to use the Baidu scale to make a thermometer, but the thermometer... How big is it?

The best way is to re-set the size of the thermometer. Use a larger one for the kiln, and a smaller one for measuring the temperature on weekdays.

Liu Tan also didn't expect that he would turn around and smash the thermometer.

But this time he didn't have to do it himself, as long as he ordered him to do it if he had a skilled subordinate.

He asked people to find sand and stones, and planned to set aside a part of the village for experimentation.

Liu Tan showed people digging out the depth of the roadbed, laying a layer of sand on the bottom, and then mixing the stones with cement.

The purpose of doing this is to prevent the cement from cracking. If you only use pure cement, I am afraid that the big and small cracks will be listed for you within a few days after it dries.

It would take a few days for the cement road to dry. During this process, Liu Tan felt that he had nothing to do anyway, so it was better to start the self-heating hot pot first.

This thing is also easy to get, just a bag of quicklime and a bag of water.

The only thing to watch out for is how much quicklime?What are the ingredients for self-heating hot pot?

In later generations, most of the self-heating hot pots were packaged in various tin packages, which were low-cost, thin and heat-conducting, and could heat food in a short period of time.

Now, of course, there is no such convenience, and the wooden box is definitely not good. First of all, the only thing that can be used is metal products.

Bronze is probably the most malleable nowadays. Of course, he has money, so he can use silver, because silver is softer and more malleable, and more importantly, it is not poisonous!

Long-term use of bronze ware, if it produces a patina and is used to hold food, it is easy to cause lead poisoning. Liu Tan knows this. He has not paid attention to this before, mainly because the tableware he uses...there are not many bronze ones.

As the top stratum of the Han Dynasty, Liu Tan must distinguish one, two, three, and four things from others. Poor people use pottery, commoners use bronze ware, nobles use lacquer ware, and when it comes to his family, they use gold and silver ware.

Liu Tan asked someone to make a set of tableware for self-heating hot pot with silver, and then tried it, and found that the effect was not bad.

But it’s not bad. It’s true that it can be promoted to make money, especially for those businessmen who travel from south to north. They are not short of money, but it’s not easy to eat fresh food when they go to business. This is very convenient.

As for him...you can show Liu Che and the others a magic trick. If you are interested, you probably don't need it. They have no shortage of people to help them. If they want to eat hot pot, there is always someone who can arrange it for them with the pot and carbon.

Moreover, the most important thing about hot pot is the taste. With the current lack of seasoning, it is quite difficult to make delicious hot pot.

When Liu Tan was feeling emotional while eating the self-heating small hot pot, Miao Rui walked over quickly and whispered, "Your Highness, those...the cement you made a few days ago have all cracked."

Liu Tan:? ? ? ? ?Which step is wrong?

The author has something to say: Liu Tan: When I was eating hot pot and singing, they told me that my concrete road was cracked, and I was going to crack too QAQ