Suppliers from both worlds have dominated the world since Datang!

Chapter 328 Soil cement production method! ! !

Li Er really didn't expect it, that is, ash mixed with sand and water.

What was originally soft and soft became indestructible after one night.

"This is the first time I have seen such cement. It is indeed indestructible!"

Li Er couldn't help but sigh:

"The world is so vast and full of wonders!"

Zhuang Zhou thought to himself, this is probably only C15 strength!

There are a total of fourteen markings on concrete.

Above c50, that is high-strength concrete.

Even the military concrete used to build military defense bases can reach c80.

That's called true indestructibility.

I was shocked for a while.

Li Ercai suddenly thought of something:

"If this were used to build a city wall, wouldn't it be indestructible?"

I guess you still know the goods!

And this doesn’t even include a steel cage!

Otherwise the intensity would have to be doubled.

"Moreover, Brother Qin, this cement block is not afraid of fire or water. It is invulnerable to weapons, oil and salt."

As Zhuang Zhou said.

Li Er believed it all.

But what he is most concerned about now is, how to get this cement dust?

"Zhuang Zhou, do you have a way to make cement?"

Now that there is a way to make salt, there is now finished cement.

Logically speaking, there must be a way to make cement.

Zhuang Zhou didn't intend to hide it. Producing cement would have to be done sooner or later.

"Brother Qin, to be honest, I do know how to make cement."

Zhuang Zhou smiled and said:

"However, the manufacturing process of this cement is quite complicated and requires specific raw materials and certain technologies."

Hearing this, Li Er's eyes flashed with excitement.

He knew very well the importance of this magical cement to Datang.

This is very useful!

In addition to building roads and bridges and building houses.

It can also be used to build city walls.

In this way, they can resist the Turkic cavalry.

This is what Li Er cares about most.

So he immediately asked:

"Zhuang Zhou, can you teach me this method of making cement?

I can grant you any reward you want! "

Zhuang Zhou nodded and said:

"Can I provide the method for making soil cement?

However, in terms of strength, it cannot reach the quality of this cement. "

Due to technical conditions, we can only make soil and cement first.

Regarding the production method, Ural has already given technical guidance.

The main raw materials include limestone, clay, iron ore powder, etc.

Iron ore powder is also simple.

Just take out the deep clay, dry it in the sun, and grind it into powder.

This clay is rich in aluminum oxide and silica.

Also known as aluminosilicates.

These raw materials need to be crushed and ground.

These raw materials are then mixed according to a certain proportion and sent to a raw meal mill for grinding to make raw meal.

The quality of raw meal has a crucial impact on the quality of cement.

After grinding, the next step is to burn the material.

The raw material is fed into the cement kiln for high-temperature firing, causing a chemical reaction to produce clinker.

Clinker is the main component of cement.

Its quality directly determines the strength, durability and other properties of cement.

The last step is to mix the burned clinker with an appropriate amount of gypsum powder.

This is to speed up the setting of cement.

Then it is sent to the cement mill for grinding to make cement.

During the grinding process, it is also necessary to add an appropriate amount of grinding aids to improve the fineness and uniformity of the cement.

Cement mills are definitely not available in this era.

But when Zhuang Zhou finished speaking, Li Er said that the weapons supervisor had special grinding tools to solve the problem.

Zhuang Zhou didn't know what kind of abrasive tool it was.

We can only wait until we go to the weapons inspection tomorrow.

Finally, Zhuang Zhou concluded:

“When making soil and cement, it is important to note that various parameters need to be strictly controlled.

Such as raw material ratio, firing temperature, grinding time, etc. "

When these things were told, Li Er could only hear a general outline.

But as long as Zhuang Zhou provides technical guidance, the craftsmen in the Arms Supervision Department will be able to do it.

This is cement!

It's very useful.

Once truly mastered, the entire Tang Dynasty will take on a completely new look.

What an achievement this would be.

Since Li Er came to the throne, he has repeatedly wanted to make achievements.

Let the old man take a good look.

In addition to Li Jiancheng, he can also be a good king of this country.

He wants to make progress too much.

Think of this.

Li Er became more and more excited and immediately ordered:

"Come on, let's go to the supervisor now and start making soil and cement tonight."

"???"

Zhuang Zhou was stunned for a moment and glanced at the sky.

Then he asked with some uncertainty:

"Brother Qin, do you want to serve as a prisoner now?"

"Yes, I'll stay up all night with you tonight and get this soil and cement out first."

"..."

Ok!

Now I finally understood.

But you are a workaholic, but I am not!

I'm here to enjoy life.

There are so many girls waiting for me in the house!

Zhuang Zhou feels miserable!

It will be dark soon.

and.

He hasn't had dinner yet!

But without any explanation, Li Er took Zhuang Zhou and went to the general to serve as prisoner.

……

Will be the supervisor.

It was established in the early years of Wude.

It is juxtaposed with Shaofujian, Guozijian, Military Equipment Supervisor and Dushui Supervisor.

It is one of the five prisons of the Nine Temples.

Supervise the maintenance of palaces, cities, bridges, boats and carriages.

It's almost a big workshop.

Whether it is daily necessities, handicrafts, or farming equipment, you can leave it to the general to make it.

In addition, the general supervisor is also good at civil engineering.

It is an important department for urban development.

Therefore, leaving the cement production to the general supervisor is the best choice.

Of course, the most important thing is that confidentiality is extremely high here.

There is no need to worry about technical leakage.

Now that Li Er is here, all the officials are already busy.

Supervisor Liu Rengui had already called all the craftsmen together.

Speaking of which, these are Datang's top technical personnel.

How can I be lucky enough to see the emperor on weekdays?

So for them, don't stay up late tonight.

He was willing to stay with him for three days and three nights.

Such an opportunity to earn performance is truly a once-in-a-lifetime opportunity!

Li Eryan explained his intention in a concise and concise manner.

Then came Zhuang Zhou’s technical guidance.

Various raw materials began to be available.

Limestone, cinder, iron ore powder, gypsum.

and other raw materials are all available.

As for the grinding tools, Zhuang Zhou has already seen them.

What the hell!

It's a stone mill.

This is somewhat unexpected.

But think about it carefully.

In this era, apart from stone mills, there seemed to be no other tools for grinding into powder.

Not to mention, Zhuang Zhou saw his grandma using this kind of stone mill when he was a child.

I usually grind beans and make tofu.

Grind glutinous rice to make glutinous rice balls during the Chinese New Year.

They are all made with stone mills.

The wisdom of our ancestors is really powerful.

But now I can no longer see the stone mill.

So stone mills are used to grind powder to make cement.

It really has a unique taste.

The torches shone brightly.

Because Li Ershou was at the scene.

Every official who will serve as a prisoner will personally participate in the work.

And it’s all work done in a hurry.

Afraid of doing less.

This scene is so interesting.

Employees all want to earn performance in front of their boss.

This is true even after traveling through thousands of years.

It seems that this is also a cultural inheritance!

"..."