People are in the Tang Dynasty, creating a mythical dynasty

Li Ming nodded, and then led Qin Yuhuan towards Shaofu.

Chapter 57 Cement Making

With Qin Yuhuan's master and servant, the group quickly arrived at the Shaofu.

"This girl wants to buy some eggs, see how much he wants, give him some!"

Li Ming casually spoke to a member of the Shaofu.

"Yes, Your Highness!"

The Shaofu official who was named nodded quickly.

"Girl, I have something else to do, so I will stay soon!"

Nodding towards Qin Yuhuan, Li Ming stepped forward and left.

Although Qin Yuhuan was very beautiful, and in his [-]s and [-]s, he even made Li Ming stunned for a moment, but at this time, he still had important things to do, so naturally he didn't have time to waste here.

As for who this one is.

He didn't care about it either.

He can now focus on infrastructure.

Everything else was left behind by him for the time being.

"Thank you Your Highness!"

Qin Yuhuan nodded, and bowed slightly towards Li Ming's leaving back.

As for Li Ming who left, he quickly found the Shaofu Supervisor

"Buy the materials on this for me, the more the better!"

"Also find some masons for this king!"

After speaking, Li Ming casually handed over the raw materials for cement production that he had written at home this morning.

The Shaofu supervisor took over.

With just a glance, he noticed Li Ming's words behind him.

"His Highness needs some masons?"

With a questioning opening.

"Yes, what's the problem?"

Li Ming nodded, and spoke with some doubts.

"No, no problem!"

"The next officer will do it immediately!"

The Shaofu Supervisor nodded quickly.

At this moment, although he was very puzzled.

The ancient ranks were obvious, and craftsmen also had obvious gaps, and masons were undoubtedly the lowest.

But with his previous experience, he would not ask anything at this time, but would directly accept it.

"Okay, just these things, you hurry up and do it!"

"By the way, besides, you go to Chang'an to post this, and arrange someone to recruit it by the way."

As if thinking of something, Li Ming casually took out another piece of paper from his pocket.

"Yes!"

The Shaofu supervisor responded, and then took the paper.

The paper is huge, and there is a lot of writing on it.

When the eyes converged, the words on it gradually reflected in his eyes.

Soon the Shaofu Supervisor could clearly see the writing on it.

It's just that when he saw clearly, his eyes couldn't help but widen.

"Just follow the instructions above, don't mess it up for me, within fifteen days, I need to recruit at least 1 people."

Jiang Chen didn't care about the surprise of the Shaofu Supervisor, but spoke again.

And his words made the Shaofu supervisor quickly pull back from his surprise.

Then quickly responded.

"promise!"

"The next officer will do it immediately!"

After responding, the Shaofu supervisor quickly retreated.

If it was before, he might have to ask at this moment.

Even worry about money.

But now, he is very calm.

Now Shaofu is really rich.

The income from selling sugar exceeded one million guan. Although most of the money was handed over to the Ministry of Household Affairs, 20 guan was left for the Shaofu.

It can be said to be rich and powerful.

And Li Ming's all kinds of magic, even if it will cost a lot this time, the Shaofu Prison is not worth it.

money.

Is this the problem?

Well, if Li Ming hadn't taken office before, the Shaofu Supervisor still thought it was a problem, and it was a big problem.

But now that's not a problem at all.

His figure quickly left.

Later, he found the mason first.

Then there is the material.

A large amount of materials were transported to where Li Ming was.

Cement, or more precisely Portland cement, is undoubtedly produced in a very simple way, mainly using limestone and clay as the main raw materials, which are then crushed, batched, and ground to make raw meal, which is then fed into a cement kiln for calcination The mature material is made by grinding the clinker with appropriate amount of gypsum.

How difficult it is to say, naturally not necessarily.

It is not even as good as refined salt.

Li Ming directed these masons to quickly enter the steps of cement production.

First of all, the first step is to be broken.

That is, raw meal grinding, which is generally divided into dry method and wet method in later generations, and the crushing of raw meal is completed through various instruments.

However, this was more than 1000 years ago. In the Tang Dynasty, let alone various instruments, there was no electricity. It was basically unnecessary to think about completing the so-called dry and wet methods.

But he doesn't need to be so complicated, just smash it directly.

The calcined clinker is then ground together with the slag left over from ironmaking to produce cement.

The only thing to consider is proportion.

But this also has relevant information in the manufacturing books.

比如混凝土、水泥、砂石和水的比例1:1.4:28:0.48来配比的C25型号的水泥。

又比如混凝土、水泥、砂石和水的比例1:1.18:26:041来配比的C30型号的水泥。

......

The role of cement with different proportions is naturally different.

And there is complete information on these productions, just follow them and do it.

The tall hearth was raised.

A blast furnace is naturally impossible.

In the process of cement firing, there are records related to the production of stoves.

At this time, it was built according to the cat and the tiger.

Li Ming didn't have much idea of ​​what effect it would have.

But there's nothing wrong with trying it.

Soon the firing begins.

And only the next day, a pile of gray-black powdery objects appeared in front of him.

"This is?"

Looking at the gray-black powder in front of his eyes, Li Ming frowned.

Obviously, this thing is not similar to the cement in memory.

But since it was baked, he certainly wouldn't mind trying it.

"Come on!"

A voice sounded, and soon a servant girl ran over.

"Add water to these and combine them!"

Li Ming then ordered.

And under Li Ming's order, water was quickly added and stirred.

With stirring, the gray-black secretion gradually turned into fluid.

And when the sun shines directly, the fluid dries out gradually.

Those gray-black powders coagulate quickly.

When the water dries out, a gray-black lump is formed, which is extremely hard.

It seems like this did the trick except for the color.

The problem of color was quickly resolved during the second firing.

At this moment, a smile finally appeared on his face.

Although this thing is simple, when it is actually fired, its nature is completely different.

Cement, this is the foundation of infrastructure.

Although there are still few steel bars, this is more than 1000 years ago. In these 1000 years ago, the presence or absence of steel bars actually didn't matter that much.

After all, in this era, there will not be the weight of thousands of tons in later generations.

Cement is actually enough.

Even with cement, many things can be started.

In addition to reservoirs, the existence of some buildings can even completely speed up the speed, and the effect on infrastructure will be unimaginable.

Chapter 58 Datang's first engineering team

The role of cement is unquestionable. In the future, it will be involved in the infrastructure of almost all walks of life.

In this era, this thing is almost at the level of Wang Zha.

Although it cannot completely replace the three-component clay of this era, cement is undoubtedly more suitable for some basic constructions.

After all, there is no cheaper and more practical material than cement.

So when the firing is successful.

Li Ming started large-scale firing.

Blast furnaces are being built in Shaofu.