The next day, at Dongfang Mansion, Dongfang Haotian summoned all the carpenters, masons, stonemasons and other craftsmen of the town to come to a meeting, and he planned to build a city wall for Qingfeng Town.

Generally, the town is without the presence of walls.

The main reason is that the cost of building the city wall is too high, it is not cost-effective for a small town, and there is not enough financial resources to build it.

However, since he decided to use Qingfeng Town as his first base, it is naturally impossible to do without the protection of the city walls.

Dongfang Haotian not only had to build, but also built an incomparably tall and majestic city wall to protect the entire town.

Although this is a martial arts world, for the current level of force in Qingyang Mansion, the protective effect of the city wall is still very huge, even if the master of the top true martial arts realm can easily break the city wall.

The entire Qingyang Mansion is likely to be in turmoil, and the construction of the city wall is a very necessary thing at present.

Dongfang Haotian's plan is to take the current area of Qingfeng Town as the inner city, and then aspire to expand 2 kilometers from east to west and 1.5 kilometers from north to south, forming a city that can live nearly 100,000 people.

Of course, the first step was to build a wall that would enclose the current town of Seifuze.

The walls of the outer city can only be implemented when there is sufficient energy and financial resources.

"Back to the East Young Master, building the city wall requires a lot of money and manpower, have you really thought about building it?" the craftsmen reconfirmed.

After all, it's not a small investment.

"Hmm. Dongfang Haotian nodded in affirmation.

He continued: "However, this time I am not going to use stone to build the wall, but to use a completely new material to build the wall. ”

The walls of this otherworld are all made of carefully selected stones and polished walls.

Collecting and transporting qualified stone is not only a waste of time, but also the transportation cost is particularly high, requiring deep search in the mountains and forests, and the manpower used is also huge.

Therefore, Dongfang Haotian planned to use other methods to build the city wall.

It's good that he is a modern man and has some knowledge of modern people.

He was going to burn bricks to build the city walls.

The advantages of green bricks are strong air permeability, good water absorption, maintaining air humidity, wear resistance, and non-corrosion for 10,000 years.

At the same time, the green bricks give people a simple, calm, simple and quiet beauty, which is very in line with a deep artistic conception.

There is also the clay material for firing green bricks, which is everywhere in Qingfeng Town, and it is very convenient to take local materials, which greatly saves transportation time and cost, and the labor force will also be greatly reduced.

It can also be fired in a continuous stream without worrying about the shortage of materials and the inability to complete the city wall.

As for the firing method, I learned about it in the books I read at the beginning, roughly after the clay is mixed with water, extruded into shape, and then baked in a brick kiln to about 1,000 degrees, and then cooled with water.

So he wrote down the firing method and recorded it in the "Green Brick Firing Method".

At the same time, he also wrote a vague overview of the "Brick Kiln Construction Law", and asked them to build a brick kiln that could raise the temperature to 1,000 degrees Celsius, which was used to fire green bricks.

Of course, he is also on paper and has not operated it personally.

But the general method and steps are here, don't underestimate the IQ of these people from another world, after many practices, you will definitely be able to succeed.

The craftsmen looked through the "Green Brick Firing Method" and the "Brick Kiln Construction Method", and began to discuss each other.

After about a stick of incense, a gray-haired craftsman asked:

"Young Master Dongfang, does the effect of the brick kiln raise the heat of the fire to a thousand degrees in your mouth?"

Dongfang Haotian thought for a moment, he didn't know the specific situation, so he could only answer vaguely: "It should be like this." ”

The old craftsman said: "The old man thinks that it is too troublesome to build a brick kiln, I know a blacksmith from Xiwang Village, he found a ground fire, the heat is extremely high, I don't know if it is up to the so-called 1,000 degrees in your mouth." ”

Degrees are the measurement on the earth, and people in other worlds naturally do not know the meaning of what a thousand degrees represent.

Dongfang Haotian asked, "Can you melt iron into molten iron?"

"Yes. The old craftsman nodded.

"Well, the temperature of this earth fire is more than 1,000 degrees, you can try it and use it to burn green bricks. ”

The melting point of iron is about 1500°, and it is able to melt iron, which naturally exceeds 1,000 degrees.

As for whether it will work in the end, Dongfang Haotian can't be sure.

"Then, we will retire and immediately go to test the firing of the green bricks in the mouth of the young master of the East, if it is really so magical, this is a big invention. The craftsmen said in amazement.

"Go ahead, report to me anytime there's progress. Dongfang Haotian nodded.

......

Three days later, the old craftsman sent a plain and simple cyan brick from Xiwang Village overnight, and presented it in front of Dongfang Haotian's eyes.

Dongfang Haotian's eyes lit up, he didn't expect that the group of craftsmen would really fire it.

"Young Master Dongfang, the old man is also surprised that a pile of ordinary soil can be turned into such a magical thing, the young master is really intelligent and admirable. The old craftsman exclaimed.

Dongfang Haotian put his hands on the board, but the green brick did not move at all, and it was not broken in half.

This shocked him, he never expected that the fired green bricks would be so strong, "Good guy, it is so strong." ”

On Earth, some ordinary people who have been trained can do it with their bare hands.

Although Dongfang Haotian only used thirty percent of his strength, he was now refining his body ninefold cultivation, and he could generate a huge force of more than three thousand catties when he burst out with all his strength.

"I'll try to see how hard you are. Dongfang Haotian said darkly.

Then he continued to increase his strength, until he used more than six layers of strength, and the green brick was broken in two.

Dongfang Haotian gasped, what kind of terrifying level of defense will the city wall be built with such hardness of green bricks?

So he asked, "What the hell is going on? Why is the hardness of the green bricks so strong?" “

The old craftsman smiled: "Young Master Dongfang, aren't you shocked by the hardness of the green brick, and the old man and others were also surprised by its sturdiness." ”

"We all guessed that it had something to do with the fire we were using. ”

"Earth fire? Could it be the different fire of heaven and earth mentioned in the book?"

Dongfang Haotian had also heard in books that some magical fires between heaven and earth had incredible energy.

If this earth fire is really a magical fire between heaven and earth, it is also very reasonable to increase the hardness of the green bricks.

This is a treasure, and someone will be sent to protect it closely.

"By the way, what's your name. Dongfang Haotian asked.

"Back to the East, young master, the old man's surname is Zhou, and his name is Renfa. ”

"Well, from now on, Craftsman Zhou, you are the owner of the Xiwang Brick Factory, fully responsible for the burning of green bricks and the construction of the city wall, and receive one or two taels of silver every month. ”

Craftsman Zhou thanked excitedly: "Thank you, young master, for cultivating, the old decay will definitely not let you down." ”

He was just an ordinary low-level craftsman, and he didn't expect that one day he would be reused, and the excitement in his heart can be imagined.

"I also have a copy of "Lime Mortar Preparation Method" here, you go to find some lime, sand, and water, mix it according to the above ratio, and use it to stick the green bricks. ”

Dongfang Haotian handed a note to Craftsman Zhou.

"Yes, young master. ”