Transmigrated into a female county magistrate during a famine, leading her country to prosperity

Chapter 391 Searching for Limestone

Several people walked along the path with grunts and pans. Liang Fu deliberately didn't speak, which made Shen Zheng feel awkward. She wanted to speak up, but no one responded.

Shen Xingjian looked at Shen Zheng's thin back, a faint smile appearing on the corner of his mouth.

He quickened his pace slightly and walked side by side with Shen Zheng. He was like a curious baby, with a face full of curiosity and seriousness. "Sir Shen, do you have a way to solve the problem of damp and muddy ground without laying bricks?"

Shen Zheng thought she had finally whetted their appetite and instantly became alert.

She threw the leaves in her hand away and clapped her hands, saying, "If we can find limestone, that is, dolomite, there should be a way. It is an indispensable material."

Shen Xingjian nodded, and after a moment's silence, he asked her in a gentle voice, "What is this dolomite calcination you just mentioned?"

Shen Zheng thought for a moment and finally determined that lime calcination was not widely used in the Great Zhou Dynasty.

Liang Fu also looked over curiously and joined the group chat: "Master Shen, from what you said just now, dolomite and shells are, are the same substance? This... but dolomite is a stone, and shells are living creatures, how can they be the same substance?"

As a leader in the Ministry of Industry, he naturally had an extremely keen sense of materials in the world, but he had never heard of two completely different things containing basically the same substances.

Shen Zheng was also unable to explain the calcified substance using the existing knowledge of the Great Zhou Dynasty, so she could only explain the concept of "calcium" to them.

But she did not mention "calcium carbonate" much, otherwise she would have to explain to them what "carbonic acid" is.

"As I said, both limestone and shells contain a lot of calcium, which is also a substance our human body needs, even as we age..."

Shen Zheng glanced at Liang Fu and said, "People like you, Sir Liang, need calcium supplements. Because our bones also contain a lot of calcium. The elderly are more likely to break bones due to falls, which is also partly due to this."

Hey.

Liang Fu laughed in his heart.

This guy really took revenge on the spot.

He hummed, and asked incredulously, "You mean, an 'old' person like me needs to eat lime to supplement calcium?"

Shen Zheng's eyes suddenly widened.

What did she say to cause Liang Fu to misunderstand her like this?

"No, no." Shen Zheng waved her hands repeatedly to help Liang Fu dispel this idea. "Quicklime cannot be eaten. First, quicklime has not been extracted and reacted. It cannot be absorbed by the human body if ingested directly, and it cannot achieve the effect of calcium supplementation at all."

"Second, if limestone is calcined and becomes lime, it will 'burn' when it comes into contact with water."

"Burn it?" Liang Fu became more and more curious, and walked from Shen Xingjian's side to Shen Zheng's side, "Tell me more about it."

Shen Zheng pondered for a moment, trying to make his explanation concise and clear so that even people who had not studied chemistry could understand it.

"When quicklime and water are mixed, they become slaked lime. This process produces a reaction that releases a lot of heat. The lime is extremely corrosive during the reaction. If our skin comes into contact with it, it will be burned."

She added: "And this kind of burn is not simply caused by high temperature, but by high temperature mixed with a substance in slaked lime, which burns and corrodes the skin."

Liang Fu's eyes lit up when he heard this, and he immediately thought of several application methods.

He got closer and closer and asked a very professional question: "What is the name of that substance that can burn people after mixing? Is there a special term for it?"

Shen Zheng choked and felt a lump in her throat.

This question is too academic. If she says one, she will have to explain countless others to Liang Fu.

But seeing that Liang Fu was still eager to learn at his age, she couldn't bear to refuse.

Shen Zheng could only frown deliberately and pretend to think: "I have read about this in ancient books before, please don't worry, let me think about it."

Liang Fu hummed several times and said there was no hurry.

Shen Zheng quickened his pace and walked in front, tapping his head as he walked, "Hmm...what's your name..."

She pretended to think for a quarter of an hour, so long that Liang Fu wanted to give up if he really couldn't remember it. Then Shen Zheng spoke: "Sir Liang, if I remember correctly, this kind of burn seems to be called 'alkali' burn."

Liang Fu nodded half-understandingly, "So, then, slaked lime might be the 'alkali'?"

day.

Shen Zheng turned her back to him and gave him a thumbs up in her heart.

What does it mean to understand a hundred things after one enlightenment? This is it!

But she didn't plan to say more to Liang Fu, she just said "hmm", "I think so..."

Liang Fu got a "positive" answer and couldn't wait to take Shen Zheng to find the dolomite.

He couldn't help but quicken his pace and overtake Shen Zheng.

Shen Zheng raised her hand towards his back, looked at the weed-covered path under her feet, and advised: "Master Liang, please slow down."

Liang Fu said without even turning his head, "Don't worry, I won't fall. Besides, isn't Lord Shen Xingjian here? If I break a bone, you won't have to carry me back."

Liang Fu wins!

Shen Zheng closed her mouth and followed him closely.

The three of them walked and walked, and even Shen Zheng couldn't remember how long they had been walking, but they still hadn't reached their destination.

They didn't bring anything with them, let alone water and food. Even the shoes on their feet were not comfortable to walk in.

Shen Zheng was so thirsty that she licked her lips and asked, "Master Liang, didn't you say it's not far away? Didn't you say it's at the foot of the mountain? But... where is the mountain?"

She looked up and saw bushes and branches growing everywhere in front of her, completely blocking the "mountain" that Liang Fu mentioned.

They say that a horse will die if it runs to the mountain, but now she can't even see a mountain! How long will it take to get there?

"It's right in front. We'll be there soon." Liang Fu replied without even turning his head.

Shen Zheng was pinned to the spot by his words, and was a little suspicious: "You have said this three times, and each time you said it was almost there, how soon is it going to be?"

No, this little old man Liang Fu, how can he walk so long at this age?

Also, when did he come here? When did he know there was limestone at the foot of the mountain?

Liang Fu didn't answer, and Shen Zheng wanted to give up.

She suddenly squatted on the ground, making it impossible for Shen Xingjian, who was following behind her, to avoid her. He almost "jumped over" her and it took him a long time to steady himself.

"Lord Liang, please tell me the truth. How long will it take? I am almost exhausted." Shen Zheng said helplessly.

Liang Fu stopped and turned around with a smile, "I see that you are a young man, your health is not that good..."

Shen Zheng:......