Su Bai and Zhao Xinqing took the snack and placed it next to the alfalfa bush. Then they hiked up the mountain and followed the third tributary of the mountain stream to explore the mountain.

"Do you think it's possible that the wind blew the bamboo leaves into the river?"

Zhao Xinqing suddenly asked.

Su Bai smiled bitterly twice, nodded and said:

"Well, I was thinking about this just now."

"There was some wishful thinking before."

"We look along the water, but the bamboo forest may be very far away from us."

Zhao Xinqing shook Su Bai's hand and said with a comforting smile:

"It's okay. Let's walk along the stream and up the mountain. We will gain something every time."

"Even if we can't find bamboo, we won't lose."

"As you said, we rely on mountains to eat mountains and rivers to eat water. Sooner or later, we will have to explore this mountain."

I didn't walk more than two steps along this third stream.

Zhao Xinqing hadn't found anything useful yet. Su Bai's eyes lit up first, and he pulled Zhao Xinqing to a hillside and stared at it non-stop.

Barrage:

[Oh? Su Bai actually found useful supplies before Dr. Zhao? 】

【It’s not even something in the water?】

【How rare!】

[You have been looking at this rocky slope for a long time, but there is nothing there!]

Zhao Xinqing followed Su Bai and felt a little strange, so she asked:

"Su Bai, what's wrong with this stone slope?"

Su Bai smiled, pointed at the clearly layered rock formations exposed on the stone slope, and said:

"This is shale, a type of sedimentary rock."

"The density is low and the stone is brittle. It is the best material for us to build stone houses in the wilderness."

"I've been looking for this kind of shale before."

"There is actually this kind of sedimentary rock beside the two creeks, but the terrain is not conducive to mining."

"But here..."

Su Bai pointed around and said:

"The slope is very small and it is very open. There is not much floating soil on it. With a little digging, you can directly get a lot of shale."

"It's not high here. We can move it between camps in half an hour."

"With this shale layer, we can finally get rid of the leaky cabin."

Zhao Xinqing heard Su Bai's words, thought about it, and asked doubtfully:

"The density is low and the stone is brittle?"

"Shouldn't this kind of stone be a very bad stone?"

"Why... is it our best material?"

Barrage:

[Yes, yes! The stone houses in my hometown are made of granite or basalt even if they don’t use bricks!]

[After the shale is smashed down, it is all in one piece. Will it really not collapse when building a house? 】

[Su Bai, why do I feel like you have a bad idea? 】

[That’s it, I have a strange premonition that the match between Su Bai and Li Jixian will turn into a “house collapse” match, right? 】

[Li Ji first demolished the wooden house, and our Su Bai was better at demolishing the stone house.]

[Wairly! If the stone house collapses, it will kill people! 】

[Su Bai, can you please stop messing around? What should I do if the beautiful Dr. Zhao is crushed to death by your house collapse?!】

Su Bai looked at the barrage, smiled and shook his head, explaining:

"Granite and basalt are indeed of better quality than shale."

"But don't forget, this is a wilderness."

“The low density of shale also means its light weight.”

"Zhao Xinqing and I don't have any tools, so we are going to dig and move granite? Do you think it is feasible?"

"Based on the cost-effectiveness, shale is indeed the best choice."

After hearing Su Bai's words, Zhao Xinqing suddenly realized:

"So that's it!"

"Su Bai, you know so much!"

Barrage:

【???】

[Dr. Zhao, you are clearly in the eye of the beholder! What does he know better than you?]

[The rich second generation understands what Dr. Zhao does not understand, and Dr. Zhao understands what the rich second generation does not understand... The two of them are truly a match made in heaven... I cried to death...]

"It's just..." Zhao Xinqing suddenly thought of something again and frowned:

"How can a house built with shale be stable?"

"Does it mean that we can only use square stone pieces?"

"Isn't that too difficult?"

Su Bai chuckled and said:

"No, as long as the shape of the shale is not too strange, we can use it."

"I just need to make cement to use as an adhesive."

"Cement?" Zhao Xinqing was stunned for a moment, with a look of astonishment on her face.

Barrage:

[I’ll go, Su Bai, you have such a big heart!]

【Do you still want to make cement?】

【Can you make cement in the wilderness? Stop teasing me, okay?】

Su Bai shook his head and said:

"A simple version of cement is actually not difficult to make."

"We only need three things, and we basically have them."

Su Bai stretched out three fingers and said:

"Limestone, clay, charcoal."

"Limestone is very common. We have seen it many times on the mountain before. There must be some in the clay river. We have some charcoal stored. If it is not enough, we can make more charcoal."

"Of course, the complete version of cement also requires iron powder, gypsum and other materials, but we can't find these things in the wilderness, and we don't need cement of this strength."

Barrage:

【emmmmm……】

[Is this reliable? You have omitted so many things. Can the quality of the cement support the entire house? 】

Su Bai nodded and smiled:

"It's definitely enough."

"In rural areas of my country, stone houses made of shale flakes are directly bonded with loess, and they can still last for decades."

"With cement as support, we can even build a second floor."

Barrage:

【???】

【Second floor?!】

[You are going to compete with the two rangers from the Lighthouse Country!]

[Good guys! The two rangers from the Lighthouse Country built a small second-floor villa out of rough wood. Now it is the best accommodation among all the contestants! 】

[Su Bai! If you really walked out of the stone and cement second-floor villa, you would really press the two rangers from the Lighthouse Country to the ground and rub them together!]

[Come on, Su Bai! Come on! Those two forest rangers are already the strongest players in the Lighthouse Country! If you can defeat them in the place they are most proud of, it will be a great success for our country, China.
To be continued...