Theoretically, the fired raw cement should be ground with gypsum to adjust its hardening time. But now there was no need to think about it at all, and Caesar asked Tony to prepare the cement mortar in the ratio of three parts raw cement to one part river sand.

The color of the cement slurry is light, showing grayish white, although the color is different from the black and gray cement color seen in the previous life, but after all, it is an experimental product, and Caesar does not care!

I poured them on one stone brick and fastened the other, and by the way, I painted the four sides of the two stone bricks with a piece of cement, and the two stone bricks now looked like they were fused together.

This skillful handiwork made Caesar himself wonder if he was born to do this.

If you don't have to go through it, it seems that it is also a good choice to work on a construction site after graduation!

Generally speaking, the setting time of cement is about two hours, but it depends on the weather. Of course, it's okay to have Alan dry the cement directly with fire magic!

However, considering that this was the first time Caesar had made his own raw cement, he still chose to wait for the cement to dry naturally.

Two hours passed quickly, and the cement that had been simmering under the scorching sun quickly faded from its wetness and slowly solidified.

Now the cement is solidified and tightly joined together with the two stone bricks. The consolidated surface looked uneven, and pressing the hardened cement with his fingers made him happy.

It's really hard!

It's very similar to the touch of cement on the earth, but I don't know what the bonding effect is!

"Carlo, how about trying this thing without using Dou Qi!" Caesar turned to the second-order warrior Carlo.

"Yes!"

Carlo walked over to the stone bricks, held them in both hands, and tried to lift them, but the stone bricks seemed to grow on the ground, and no matter how hard Carlo tried, he couldn't lift them.

"Hmm, it seems to have some effect!" Caesar whispered, "Carlo doesn't have to be vindictive, see if he can destroy it!"

"Yes!"

Carlo walked to the side of the brick and kicked it hard, but the brick remained on the ground.

What a terrifying defense!

Allen, who was on the side, had already looked at it thoroughly, no matter what the effect of the cement he had made, if it was a normal situation, if Carlo kicked himself with this kind of force, it was estimated that he would have already broken his bones, but this cement was so strong that even Carlo couldn't destroy it!

If it can be mass-produced and used on the houses at the base of the city wall......

Then Atlanta will probably become the most terrifying superfortress in defense!

Carlo glanced at Caesar with his peripheral vision, and found that Caesar was frowning, as if he was very dissatisfied, and his heart began to become anxious, and he unconsciously released his fighting spirit.

The terrifying fighting spirit burst out at Carlo's feet, and a huge sound sounded at Carlo's feet!

"Boom!"

For a while, the dust was flying, and the cement powder that was not used on the side also drifted away.

"Ahem...... What are you doing, Carlo!" Caesar covered his nose and fanned the dust flying everywhere with his hand.

When the dust cleared, Caesar froze, and so did everyone present!

The stone brick lay quietly at Carlo's feet, the entire brick surface had been torn apart, but the side of the brick near the floor was still intact and glued together.

"Carlo, how much strength did you just use?!" Caesar grabbed Carlo by the shoulder, shaking wildly.

Carlo held up five fingers: "Master Caesar, I'...... I've just used about fifty percent, and in a hurry, I haven't controlled the emanation of the fighting spirit too much for a while......"

"Hahahaha!!"

Listening to Carlo's words, Caesar burst into laughter.

"It worked! It worked!"

It's just that two stone bricks can already have this effect after being paved with cement, so what if you put a few more layers? Carlo can crack two stone bricks with one kick, but what if it is four?

What about ten pieces?

What about a hundred?

A thousand bucks!

When the cement is strong enough, Caesar believes that even a true master will not be able to destroy this wall!

"It's incredible! It was still flowing like a molten candle just now, and after only two hours, it was solid as a rock. With this kind of thing, the walls of Atlanta will become the strongest structure in the world! With enough stones, we can even replace all the houses in the whole of Atlanta with such hard houses!"

Alan suddenly felt that his choice to stay in Atlanta was a very correct choice, and his gaze at Caesar became strange: "This kind of terrible thing...... How the hell did he come up with it?"

The mass production of cement is not a problem, and Alan has already studied the core temperature of this thing.

Under Caesar's instructions, Eren used gunpowder to increase the duration of the flames, and then used magic to raise the temperature of the flames himself, and soon, the production of cement was able to reach the stage of mass production!

"Carlo, help me get some stonemasons and builders over, I'm going to start working on the walls!" Caesar smiled happily, how cool it looked!

"Yes!" said Carlo respectfully.

He's not an idiot, don't think it's easy to build a wall, it seems like it's just a matter of laying out stone bricks, and then building them with cement and stone bricks to form a wall.

But when it comes to actual operation, the words are not like this, how wide is the city wall, how high is it, how to deal with the different terrain, how can such a long city wall be guaranteed to be a straight line?

The embankment of a thousand miles begins under the ants, have you heard of it?

You must know that once there is a mistake in such a big project, the city wall is just an ornament, and it is useless to put it there!

To build a road on the earth, you have to measure all kinds of measurements, and you can often see those little brothers holding a level on the ground for various comparisons, you look like you are ordinary, but if he makes a mistake, even if the error is between the values of 0.1, the whole road will become crooked.

There were no spirit levels in this world, so Caesar needed experienced builders and stonemasons who could at least make the walls safer with their expertise.

Caesar...... How did you come up with this?"

The beautiful girl sat on the city wall, watching the construction workers and stonemasons working hard to tear down the city wall and build it, and asked curiously.

Since Caesar's return to normal, Adele has become more and more unable to understand Caesar's thoughts, if the previous production team and loan service were thought up by Miss Katarina, then who came up with these cements?

Adele didn't believe Caterina would think about it.

"Dear Adele, I don't want to hide it from you, but I don't know how to explain it to you. Caesar smiled bitterly, you can't let me tell you that I came through time, and you don't believe it.

Adele didn't ask, just looked at Caesar with a smile on her face, since Caesar came to her senses, everything she did was more and more like a real lord.

And I don't need to ask any questions, just trust him.

Under Carlo's recruitment, there are no more than 50 people who produce cement in brick houses, responsible for the firing and transportation of cement, etc., and there are 50 people who carry materials on Liangshan, and dig out stones to make stone bricks!

And on the city wall there are more than twenty people who built this wide wall.

A thick wall with a height of more than fifteen meters and a width large enough to accommodate two carriages walking side by side!

"My lord, we have found an army in the northeast! It should be an army of humans, about a thousand people, heading towards us, and it is expected to arrive in Atlanta in two hours!"

The newly appointed elven scout had a strong eyesight and could see far away, and as soon as he spotted an army five kilometers away on the city wall, he immediately reported to Caesar.

"A human army of about a thousand?"

Caesar's eyes rolled, and the smile on his face became more and more intense: "An army of a thousand people, in the entire prairie, I'm afraid there are only them left!"