When Lu Yan and Geng Liang were heading to the place where the cement was fired, Zhuge Liang and Liu Bei finally hurried to the general prison.
The two met by chance in the residential area, and this moment seemed to be the reincarnation of the world.
Zhuge Liang was humble and polite, and he bowed his hands to Liu Bei and said: "Army Commander Zhuge Kongming, I have met Mr. Liu!"
Liu Bei looked at the elegant and gentle Zhuge Liang, and felt as if he were meeting an old friend.
He took two steps forward, helped Zhuge Liang up, and said, "Kong Ming is so polite."
Zhuge Liang looked at Liu Bei's clear eyes and felt Liu Bei's elegant and sincere elder temperament, and felt inexplicably much calmer in his heart.
He asked Liu Bei: "May I ask Mr. Liu, are you here at the invitation of Mr. Liu?"
Liu Bei nodded, took Zhuge Liang's hand and said, "I guess you were summoned urgently by my husband. Let's not waste time. Let's talk as we walk."
"please..."
...
Will supervise the cement production workshop.
Lu Yan, Geng Liang and others stood in the distance and watched the process of the craftsmen firing cement.
I saw a craftsman covered in flesh and bones, working hard to push and pull the bellows. The strong wind blew from the bellows into the kiln, and the flames in the furnace suddenly flew around, and the temperature skyrocketed again.
After the craftsman directing the work judged that the temperature of the furnace was about the same, he gave the order: "Start firing cement!"
After a series of processes are completed, the cement powder finally takes shape.
Lu Yan stepped forward and didn't mind that the cement powder was dirty. He stretched out his hand and grabbed a handful, feeling a little excited in his heart.
With cement, you can quickly pave solid roads; with cement, you can build a strong city in the grassland!
Just when Lu Yan was dreaming about the concrete cities that would rise from the ground one after another in the future, Liu Bei and Zhuge Liang finally arrived together.
Seeing the two people's intimate appearance, Lu Yan showed a smile and thought: "Fish and water have finally met... But now, they are all in Lao Cao and I's pond!"
Liu Bei and Zhuge Liang are both people who attach great importance to etiquette. After seeing Lu Yan, they immediately stepped forward, bowed and said, "I have met you, sir!"
"Xuande, Kongming, you are here!" Lu Yan helped them both up, pointing at the dark pile of powder behind him and said, "Come, let's take a look at the freshly baked goodies!"
Liu Bei and Zhuge Liang took a closer look and found that the "good stuff" Lu Yan was referring to was just a pile of powder...
"What is this for?" Liu Bei asked after looking around curiously.
Although Zhuge Liang didn't ask any questions, his bright eyes could no longer hide the light of curiosity.
"You will understand after you test it right away." Lu Yan replied with a smile, and then said to the craftsmen: "Come and test the cement."
However, after Lu Yan's order was issued, the craftsmen looked at each other with hesitation in their eyes.
Lu Yan saw the doubts of the craftsmen and asked, "What's wrong? Did you encounter any problems?"
The craftsmen were a little afraid to speak and looked at their boss, Geng Liang.
Geng Liang led Lu Yan to another experiment place and said: "Lu Qiuqi, in fact, we have been experimenting before..."
When they arrived at the location, Lu Yan saw a large pile of cement powder piled under a wall in front of him.
Moreover, on that wall, there was a paste made by mixing cement powder and water and paste it on the wall according to the method Lu Yan said before.
Geng Liang stepped forward, stretched out his hand and gently broke the wall. He didn't use much force, but he broke off a large piece of cement block.
Not only that, after he held it in his hands and kneaded it for a while, the cement blocks turned into small pieces and scattered, "Lu Qiaoqi, look, this cement doesn't seem to be strong..."
After Geng Liang demonstrated it once, the craftsmen all lowered their heads in shame.
It has been more than half a year, but they still haven't developed the kind of cement that Lu Yan mentioned, as hard as stone, which makes the craftsmen who receive generous salaries feel guilty.
Lu Yan stepped forward to observe carefully, then suddenly laughed and said, "I don't blame you, I didn't make it clear."
"Huh?" The craftsmen raised their heads and looked at Lu Yan.
Geng Liang asked: "Are there any steps left?"
"There is indeed one more process missing." After Lu Yan finished speaking, he asked the craftsmen around him: "Is there any river sand? Go find some."
Hearing the river sand, a craftsman immediately shouted: "There is some! Little one, go and get it!"
Before anyone else could react, the craftsman had already dashed away. This made the two companions around him say in annoyance, "Damn it, he was one step ahead!"
The craftsman was strong and carried a bag full of river sand.
After finding the river sand, Lu Yan asked the craftsmen to mix the sand into the cement, then add water and mix it.
After the cement and sand were completely mixed, Lu Yan asked the craftsmen to put the cement on the wall again and have it dried over a fire.
After drying and waiting for a while, Lu Yan said to Geng Liang: "Old Geng, you go and try again."
If sand is mixed into cement, the strength after it dries is indeed not good. But once sand is mixed in, the strength will change instantly. Not to mention stone, it is even harder than some iron tools at this time.
Geng Liang stepped forward and broke it with his hands as before.
But with this exertion, I immediately felt the difference in the cement, "It's so hard! It's so hard!"
Geng Liangliang was overjoyed, and then said to the craftsman: "Bring the shovel!"
A craftsman handed over a shovel used for mixing cement. After Geng Liang took it, he faced the wall with a "clang, clang, clang!"
"This thing actually made the sound of gold and iron!" Zhuge Liang and Liu Bei suddenly opened their eyes and murmured in disbelief.
The method of drying cement with rapid fire is actually not good. After it dries, there will still be some cracks on the surface, and the strength will be lower than that of natural drying.
But despite this, Geng Liang was sweating profusely and only scraped off a small layer of sand. Not only Liu Bei and Zhuge Liang, but also the craftsmen who were used to seeing new things were shocked at this time.
"This...this thing is so amazing!"
"Yes, after being mixed with sand, the cement becomes so hard. It's really amazing!"
"It's incredible, it's incredible!"
Lu Yan listened to these people's emotions and thought to himself: "There are better things waiting for you!"
So, Lu Yan asked the craftsmen to make a mold with wooden strips, poured cement into it and added iron rods to cast it into a cement board about three inches thick.
After waiting to be dried by the fire, Lu Yan ordered the craftsman to smash it with a hammer.
The two craftsmen smashed it for a long time. Although the cement board was slightly broken, it could not be broken or completely smashed because of the connection effect of the iron rods.
After the craftsman stopped panting from exhaustion, Liu Bei stepped forward and stepped on the dilapidated cement board with his foot, exclaiming: "What a hard cement board!"
Zhuge Liang obviously thought faster. He had already thought of the wonderful use of cement: "Sir, with cement, our city will become stronger!"
Liu Bei, Geng Liang and others suddenly realized, and then they all complimented Lu Yan.
However, Lu Yan said with a smile: "The wonderful use of this thing is not just for strengthening walls!"