Once upon a time, Fang Yun thought that he only needed a formula to be able to research something.

With the expansion of its power, the research institute built from the prototype of the former engineering battalion will naturally have more resources and materials to be invested in it, and it is said that it should be at the forefront of the times in terms of scientific research capabilities.

At the beginning, he drew the production process of soil cement, so he handed it over to the research institute for research.

I thought it should have been tested for more than a month, but who knew that I had waited for more than half a year and had no reply. It's just that he can't get angry, many of the descriptions on the recipe are modern descriptions, whether it is the temperature unit of firing or many other units, which do not exist in this world, and a lot of knowledge also requires the corresponding physics and chemistry, and even mathematical foundation to do.

Obviously, most of these researchers come from artisans, and the craftsmanship is there, but the culture is poor. That is, fortunately, Dian Jie also joined the research, and by the way, Fang Yun sent someone to eradicate their illiteracy, and after more than half a year of hard work, they finally mastered the complete production process of the formula.

Then they found that if they used charcoal or firewood to burn soil cement, the effect was not good, so they told Fang Yun about this discovery. Fang Yun was speechless again, this coal had begun to be dug up and used, why didn't he expect it?

Even, if the temperature is not enough, it can be made into coking coal and then used! It's just that then again, he doesn't even know the technology of soil coking.

The system has not yet been updated, and it seems that it will not be possible to get the lottery opportunity through the task in April, and then get the relevant technology. And it is not difficult to see from this that the system is at least somewhat limited.

It can help itself and even the generals under its command become stronger, and you can get a lot of good things through lottery, or even exploration, but directly give a certain technology, and even make yourself like those who have opened the hanging, and all the skills of the pre-era are remembered in your mind at once, it seems that you can't do it......

If you can know what you know, at least you can use it directly. Those who don't know can only be blinded. In other words, these days, who will memorize all the knowledge in their heads? Unless it's a computer traveling, I'm afraid it's impossible for anyone to do it under normal circumstances, right?

Especially. Fang Yun is just an ordinary clerk, these things are basically useless! Since you can't use it, it's still hard to remember in your mind, is it the legend: always prepare for the crossing?

In desperation, he could only call Dian Jie over. Tell him that he could consider using coal.

Dian Jie shook his head, saying that the black smoke of ordinary coal is too thick, which will make the burned material mixed with a large number of impurities, which will affect the effect of the final soil cement.

It is not denied that the temperature of coal burning is indeed very powerful, but if you can't deal with the black smoke that burns out, even if you can't make iron, there will be a lot of impurities in the molten iron burned, and then the iron or steel products created are not as good as those made by traditional craftsmanship, and the only advantage is that you can make it quickly and in large quantities.

"Wouldn't there be a quarantine room? And then through the chimney to emit all the black smoke somewhere else? Fang Yun was happy. I don't want to think about such a simple question.

"If you set up a quarantine room, how do you blow air into the furnace?" Dian Jie asked another question, after all, if you open the mouth in the isolation room, the black smoke will leak out, and if you don't open your mouth, you can't blow air inside.

"You can set up a blower device next to the isolation room, open an ancient air outlet and seal the surrounding area to ensure that the black smoke does not leak out, right?" Fang Yun was speechless.

Even if he didn't know that it didn't meet the requirements for formal steelmaking, at least he could think of a solution. If there is no difference between ancient and modern people, why can't they think of this?

"This subordinate will try it immediately!" When Dian Jie heard this, he was really excited, obviously a layer of window paper that had been bothering him for a long time was pierced. So he immediately got up and took his leave.

"Remember to use your brain, try more, and don't save me money!" Fang Yun solemnly explained.

In fact, this can't be blamed on Dianjie or the people of the research institute, it takes a long process from the birth of any kind of thing to being accepted. The era when bronze was rampant. Iron products with immature craftsmanship are not recognized. In the era of iron rampant, steel products are naturally the object of everyone's pursuit.

It's just that due to the problems of technology, craftsmanship and materials, it is not easy for them to explore further. In addition, the state does not encourage the research and development of the process, but on the contrary, it is obsessed with waste, believing that it is a kind of dereliction of duty and greed. Unclean.

This is good, the craftsmen under the command of the government naturally do not dare to try to study casually. Otherwise, a bad official head will be gone. Even in some dynasties, such as the Ming Dynasty, the wages were already low, and these craftsmen had no chance to make extra money, and they even had to be deducted by the officials, and only half of the fees were allocated.

As a result, if you can build something, it's already good, and you can expect it to be of good quality? As for the improvement process, it is naturally not necessary to mention.

There may be all kinds of crafts and even the latest technologies among the people, but it is clear that in this era of the Maison, these technologies are either lost or appropriated and monopolized by the Maison. In the end, it will be at least 200 years before this technology is used in large quantities and better technologies are invented, so that it is possible to be discarded, and in this case, it is possible to be promoted.

Therefore, ironically, it is a matter of decades for good luck to promote a new technology from the emergence of a new technology in China, but it will take hundreds of years to be promoted if it is unlucky, and even lost in the process, and finally invented by others, and then monopolized for a few years before it was promoted.

The speed of invention and promotion cannot be synchronized, and there are few craftsmen on Fang Yun's side. It is therefore clear that their technology is significantly behind the most advanced technology of the era in recent decades or so.

Coupled with a variety of other reasons, the difficulty of research and development has increased by more than ten times compared to later generations.

Thus, at the beginning of 191, the first batch of earth cement was made. When Fang Yun heard the news, he was naturally very excited, and personally went to the research institute to check the first prototype.

"What is the result, and what are the specific data on the degree of adhesion and the solidification rate?" Fang Yun saw Dian Jie and the others and immediately asked.

Fortunately, Fang Yun had already taught them the specific recording steps before, and their cultural level had also improved over the past year or so, so that they would not be ignorant of all questions, or even have no records.

Overall, you can't expect it to work better than the most advanced cement in modern times, but the degree of adhesion and the speed of solidification can surpass that of Sanhe soil, and those things like glutinous rice juice and egg whites will do.

Dian Jie didn't say anything, just made a brief report, and then took Fang Yun to the test site.

Here, there is already a poured concrete pavement and a wall made of cement and bricks.

Due to the use of plaster according to Fang Yun's intentions, the entire wall and road surface are still very smooth and flat. Fang Yun tried to walk around the road, and generally the ground was very solid, but the only problem was that it was relatively slippery, and it was okay on a dry day, and the pedestrians walking on it on a rainy day were about to slip.

The walls are also relatively strong, at least a little stronger than traditional walls. It is rare that the materials for construction are also relatively cheaper, and the overall construction budget can be reduced.

"This pavement should be treated with anti-skid, such as cutting some straight line scratches or something every other section, not too deep, mainly for anti-skid." Aside from the walls, Fang Yun had to compare the cement road in the future, and finally came to a conclusion, that is, the ground had to be treated with anti-slip.

I really admire the concrete floor of those traversers 'like a complete bluestone paved on the ground', if there is no anti-slip treatment, I am afraid that there will be no shortage of pedestrian injuries on rainy days, unless it is a frosted stone slab.

"It's just that if that's the case, I'm afraid that the labor will be improved." Dian Jie stepped forward and returned.

"It's okay, anyway, this road can't only take one or two years, and it is conservatively estimated that it will take more than ten years!" Fang Yun smiled, disappreciating this doubt.

And there are not so many overweight trains, a cement road that cuts even a little corner, and it can't support a ten-year service life? It only takes two years to set up a card to charge on this road, and then charge the builder for three years.

It's just that relatively speaking, these concrete walls, especially city walls, fortresses, etc., have to be paid for by the government.

"Tomorrow I will send more than a dozen people from the construction corps to visit and study, and you must send people to teach them the specific characteristics, construction requirements and material blending ratio of these soil cements. At the same time, you need to further develop a stronger or more adhesive product for this cement...... In addition, every researcher must wear a mask, if this thing is inhaled during the firing process, it is also very hurtful, you are all my treasure, you are not allowed to have any accidents! Fang Yun briefly explained a few words to them, and then solemnly ordered.

"Thank you for your concern!" Under the leadership of Dian Jie, all the researchers saluted.

In the past, they were at most a craftsman, and no matter how godly they were, they were just a godsmith. Even so, the social status is still very low, and at most it is relatively famous among the common people. And now, Fang Yun has given them the status and treatment of civil servants, and even really treats them as treasures, which is unprecedented for these researchers.

If you are not moved by this, what else is there to be moved?

"Study hard, the future of Huaxia is in your hands!" Fang Yun put down this sentence and left. (To be continued.) )

PS: Some thoughts on the research and promotion of ancient technology, if there is anything wrong, I hope you will forgive me.