readx;?(Thank you for your support~~heyhey~~)

Preparing cement may seem simple, but it is actually not easy. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 Of course, this difficulty factor is for this era.

"Young master, according to the order, I have asked this subway craftsman to grind these limestones to the end." Ma Jun opened a box, Liu Chan took it, it contained gray-white fine particles, and in the other box that was opened, there was a pile of clinker, that is, quicklime powder.

In fact, the use of limestone will not exceed the Warring States period at the latest, although the sentence "I am not afraid of broken bones, I must leave my innocence in the world." "It came from the hand of the Ming Dynasty poet Yu Qian, but if it wasn't for the mature craftsmanship that had already been formed, how could anyone have sung it.

Liu Chan twisted a small handful of limestone abrasive into the palm of his hand and played with it carefully. Truth be told, although the preparation of clinker is mature, the mixture in it has to be made from limestone grinding. Just like wine, it has to be blended with the first wine before it can be eaten.

But even grinding limestone in later generations required 60% of the power of a factory, and now it is a hard work of craftsmen to be able to grind it into such fine particles.

He sighed, and was about to pour it back, but suddenly felt his hairs stand on end, and he felt that something bad was about to happen!

Sure enough, in the next second, I heard a violent sneeze from the opposite side, and the vegetable-flavored air rushed out, stirring up the powder in the clinker box with the lid unclosed, and whistling away like a miniature sandstorm.

The target, of course, was the miserable man who had expected it badly, but he was surrounded in the middle and couldn't move, but at the last moment, he turned his face away and closed his eyes tightly.

In just an instant, Liu Chan turned into a big face, and his body was like being photographed on a blackboard when he was a child in his previous life.

"Boom......" A burst of silver-bell-like laughter came from Zhang Man, who was standing beside Liu Chan, in fact, because he was close to Liu Chan, he should have been affected. It's just that at the critical moment, Liu Chan's body turned slightly to her side.

Although she was smiling, her chest was unstoppably hot.

While laughing, she took out a handkerchief from her arms, leaned over, and helped Liu Chan carefully wipe the powder on her face.

At this time, the initiator was slow to react, but it was precisely because of the convenience that Ma Jun, who stood opposite Liu Chan.

"Less...... Young master, you ...... You okay? Ma Jun, who was stunned, didn't know what to do for a while, thought for a long time, suddenly stood up suddenly, ran out without slipping, and after a while, he came back panting, still holding a small jar in his hand.

Zhang Man doesn't know the power of lime, but it doesn't mean that he doesn't know, what he is holding in his hand at the moment is the oil that is sometimes used as a lubricant.

Although Liu Chan was embarrassed at this time, he was actually only stained with some clothes and a small area on his face, but it had been carefully and gently wiped off by Zhang Man beside him.

"Ma Jun!" Liu Chan's voice was full of helplessness, in the past "experimental" career with him, he had been cheated by this guy countless times.

"Less...... Young master. Ma Jun replied wistfully, like a child who had done something wrong.

Liu Chan saw the jar of oil in his arms, and said angrily and funny: "It's good that you didn't come here with the jar water, otherwise, my face would have been ruined by you!" ”

Ma Jun didn't speak when he heard this, but just put the jar in Zhang Man's hand and motioned for her to dip it up with a handkerchief.

"Huh? Why oil? Zhang Man, who was helping Liu Chan wipe the powder on his body, was stunned.

Ma Jun glanced at Liu Chan, and when he saw the latter napping him angrily, his body trembled, and he hurriedly explained: "This quicklime powder, according to the basic chemical principle of the young master's silk, will produce heat in contact with water, as for why, the young master has not yet taught it." And in the market, some rangers will also have some of this thing on their bodies, and they will spill a handful when they have a dispute with someone and if something is not good, if they don't know it, they will probably burn ......"

"Yikes!" Hearing the word scald, Zhang Man exclaimed in fright, how could she, who had never been exposed to these things, know that this thing like flour would have such consequences if it was not handled properly. Thinking that she had laughed out loud just now, she felt how guilty she was!

"Brother Chan...... Young Master Zen, concubine, concubine didn't know that this thing was so powerful, she had just ...... "She has always been strong, but she almost cried again at this moment.

Seeing this, Liu Chan sighed, wiped a little oil on his face with his hand, and comforted her and said: "It's okay, it's okay, this thing, how do you know it, it's good that it didn't get you, otherwise it would be ugly if your face became a cat!" ”

Hearing Liu Chan teasing her, Zhang Man suddenly burst into tears and laughed, and when he saw the oil on the former's face, he hurriedly wiped it with a handkerchief......

Because of this incident, it was delayed for a while before the experiment continued. However, this time, all the Mojiamen people present held their breath, thinking about the precautions in the "Code", as well as the dangerous operations and supplies that Liu Chan had emphatically mentioned, for fear that another accident would cause something big.

At this moment, Ma Jun found a piece of cloth to cover the lower half of his face, and jumped out of the way with the appearance of a Jiangyang thief. He had already decided to copy the code twenty more times and the basic principles of chemistry ten more times when he went back.

However, there is actually no difficulty and danger in the operation after this, anyway, according to the amount of raw materials, there is only a small piece of cement and out, as long as you don't paste it stupidly.

In the cement prepared by Liu Chan, loess clay is also used, to be precise, this is composite Portland cement, and the anti-corrosion performance is much higher than that of ordinary cement.

When the finished product is made, Liu Chan pours it into a cube surrounded by wooden boards, which are painted on the inside to ensure a high degree of smoothness.

"Young master, this is done?"

Seeing Liu Chan clapping his hands, a picture of a complete achievement, a person from the Mo family next to him was stunned. Ma Jun didn't speak at the moment, and he must still be unable to extricate himself from his own mistake just now.

"Hmm." Liu Chan nodded easily, this kind of operation, to be honest, is one of the compulsory courses for qualified workers in later generations, and it is not difficult for him, "Wait for us to come back tomorrow, this thing still needs a certain amount of time to solidify." ”

He turned around, looked at these Mo family members who he regarded as the backbone of the industry in the future, and said loudly: "Okay, everyone will write a report on today's experiment and hand it in tomorrow morning, and now the class will be over!" ”

……

After the experiment was over, Liu Chan, who went back to change his clothes, found that Zhang Man was waiting for him at the door again.

"Brother Zen!" Hearing a shout from the other party, Liu Chan's heart trembled, did this title become too fast?

The reason why he snubbed him before was that he didn't want his selfishness and desire to harm a girl who didn't like him to marry him, and he didn't want to marry a woman he didn't love, after all, as an ordinary modern person in his previous life, he had never been exposed to that kind of interest marriage.

However, after a short period of contact, he found that he somehow had a different feeling about this Zhang Man, which was an emotion that he had not produced in the last contact.

"Brother Zen, my little sister has a lot of questions for you." Zhang Man was stunned for a moment when Liu Chan was stunned, and then he spoke again, his voice was like the little girl next door, lively and cute, without pretentiousness.

Liu Chan couldn't help but smile when he heard that he was out of his thoughts.

"Maybe that's why."