Emperor of the Tang Dynasty

This is a magical skill that can save countless people from the hands of the god of death! .

Chapter 787 Making Cement!

In fact, there is no need for Niu Jinda and Li Xiaogong to say more about this, and Li You also has this intention.

If this method of greatly improving the survival rate of the battlefield can be promoted, it will definitely make Tang Jun's combat effectiveness soar to the sky!

"Don't worry, you all go to the front line first, and the Guhui will arrange this." Li You said with a bow.

Li Xiaogong and Niu Jinda looked at each other with surprise in their eyes.

"Yes! Your Highness!"

Seeing that the two of them rushed to the battlefield again, Li You also found a place where no one was there and continued to dig things out.

After all, even if this method were popularized, the spirits and glass products in Songzhou alone would not be enough. Fortunately, Li You brought a bunch of them - come here!

And why Li You didn't rush to the battlefield for the first time is because Li You still has an idea about defending the city to test!

"With the addition of the [-] troops I brought, at least it will be no problem to survive today."

After Li You made some calculations, he assuredly called someone to move things.

……

With the promotion of Li Youna's series of methods of disinfection, debridement and suturing, everyone must strictly follow the procedures to take care of the wounded.

Although they didn't have Li You's Nine Yang Inner Power, they could still reluctantly distill some alcohol by means of flames, and these vital alcohols could only be used to disinfect wounds.

The rest of the utensils and other items were cleaned and disinfected with boiling water. Li You also quickly rectified the sanitation and conditions of the wounded camp to ensure their survival rate to the greatest extent.

After doing all this, Li You finally had time to look at the results of his own experiments.

Long before the busyness started, Li You had already sent people to find several cave dwellings and started working according to his instructions.

Now when Li You goes to the cave again, he can smell a very choking smell from a long distance, and the thick smoke is billowing, which is simply the source of the smog.

"How's the firing?"

Li You covered his mouth and nose with his sleeves and went in to ask.

When the person in charge of the cave saw Li You coming, he immediately came out to salute.

"I have seen His Royal Highness!"

"Excuse the courtesy, let's talk business."

Li You looked at his dusty appearance, and patted him on the shoulder consolingly, which moved the person in charge even more.

"Go back to Your Highness, all the procedures and materials are done according to your instructions. Now there are many finished products, just waiting for you to check and accept!"

The person in charge pointed to the scene in the cave, and saw that there were several large grinding discs and grinding discs in the cave. into a special bag.

Li You looked overjoyed and said, "Take Gu to see it!"

"Yes!"

The person in charge quickly responded, and after a while, he took Li You to an open space, where several gray-white boards were erected. At first glance, Li You felt very familiar, and it was exactly the same as what he remembered.

That's right, what Li You wants to test is to make cement!

The reason why the smoke was so thick just now was because the process of firing cement was extremely unenvironmental, especially because the tools were not in place today, so Li You could only use the local method for firing.

However, the advantages of cement are far beyond the construction methods of today's era. It is very convenient for construction and can also improve the construction speed. If cement is available when defending the city, it will be invincible!

"Sure enough, it came out! It seems that with the rough cement formula in my memory, and the method of firing glass, we can reproduce cement in this era!"

Li You was very excited to see it. He had already reckoned the process in his mind countless times on the way to the army in a hurry.

It is precisely because Li You already possessed the technique of firing glass that on his way to Songzhou, he wanted to experiment with making cement on a whim.

Although the firing technology, equipment and methods of cement and glass are far from each other, they are very similar in essence.

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For example, the firing reaction of cement and glass must be carried out at high temperature, and both have undergone very complex physical changes and chemical reactions, especially in terms of materials, which can basically be called almost the same!

Glass is made of limestone, quartz sand and soda ash and other materials mixed and melted at high temperature, while cement is made of limestone, clay and gypsum and other materials mixed at high temperature and fired at high temperature. There is an amazing similarity in raw materials!

In other words, in the process of firing glass, you only need to change different firing methods on the same material, then maybe you can fire cement!

Looking at it now, Li You's idea is indeed correct.

In the proportion of cement, Li You also saved a lot of debugging steps, so that the cement can be manufactured at the fastest speed.

For example, Li You clearly remembers that in 1813, the French civil engineer Picard found that the cement made by mixing lime and clay in a ratio of three to one had the best performance. Li You now only needs to follow suit.

"Your Highness, what is this?"

Looking at the finished product that was rushed out on this day, the person in charge was also very curious.

"Although it's not completely dry, it's already hard! Caomin has never seen something so hard!"

The person in charge was full of amazement. Because the amount of cement samples was very small, and just after the New Year, Songzhou was in the coldest time of the year, so these cements dried especially fast.

He saw with his own eyes that the cement changed from a viscous liquid to a hard solid. If he wanted to say something like it, the person in charge could only think of water freezing into ice - but the cement is obviously much harder than ice cubes!

"Haha..." Li You laughed heartily, "This thing is called cement, you should be proud of it today, and you can even brag about this moment to your descendants in the future!"