365 days of wilderness survival

Yun Xin and Liu Yiqiu looked at each other, and the same thought was in their minds: "Can you still make cement in the wilderness?" "

The third girl was curious about how Chu Feng's cement was going to be made, and she ate very quickly, it used to take about half an hour to eat, but this time she solved all the food in more than ten minutes.

After cleaning up the pots and bowls and food scraps, the third girl looked at Chu Feng expectantly.

Chu Feng chuckled, stood up, pulled out the water tank that was originally soaked in deer skin and jackal skin, and threw out the dirty water inside and replaced it with clear water.

He then moved the water tank containing the ashes next to the wooden frame and set it aside.

"Chu Feng, shouldn't this grass ash be used to make cement?" Yun Xin asked in amazement.

"That's right, very smart." Chu Feng chuckled and said that grass and wood ash was indeed a raw material for making cement.

"Can grass ash be made into cement? I still don't quite believe it. Liu Yimeng shook her head violently, something as stiff as cement, can it be made with grass and wood ash?

"It seems that there is nothing that grass and wood cannot do." Liu Yiqiu raised her eyebrows.

She remembered that Chu Feng used grass and wood ash to make a lot of things, such as softening animal skins and using grass and wood ash, and then soap, stinky yellow wattle cool skin, etc. all used grass and wood ash.

The barrage in the live broadcast room brushed quickly.

"Take out the small book, Chu Feng is about to make a big move again."

"Make cement out of grass and wood ash? Sounds so implausible? "

"Don't talk in front, it's not good if you will be punched in the face."

"That is, there are no impossible three words here in Chu Feng."

"The front, give you five cents to delete the barrage, let me send it."

“......."

"Try it." Chu Feng chuckled, poured the grass ash into the water tank containing the water, and then found a wooden stick to mix the grass ash and water evenly.

After more than ten minutes, letting the molten ash settle, he found the clay pot and began to scoop the water that had turned gray and white in the water tank.

"I'll help you." Liu Yimeng found another clay pot to help scoop the water off.

After a few minutes, the gray-white goo formed by the melting of grass and wood ash remained in the water tank, and most of the water tank was contained.

Yun Xin frowned and asked curiously, "What are these?" "

"These are the products of the dissolution of grass and wood ash, mainly calcium hydroxide and calcium carbonate." Chu Feng said softly.

Grass ash contains potassium carbonate, which is harmful to cement, but in the process of pouring into water to dissolve, potassium carbonate has been melted into the water and can be separated and removed.

What remains is a paste of insoluble calcium hydroxide and calcium carbonate, which is also the key to making earthy cement.

"Calcium hydroxide and calcium carbonate..." Yun Xin frowned, these are chemical terms.

Although she taught herself everything she needed to know about her senior year of high school, and even taught herself a year of college, she didn't understand what these two chemical compositions meant.

The Liu sisters are also a little confused, chemistry is not their strength, it can even be said to be a weakness.

Chu Feng chuckled and said, "I need your help next." "

"How to get it?" Liu Yimeng asked enthusiastically.

"Crumple all this paste and put it on the fireplace to dry." Chu Feng said softly.

He reached out and grabbed a handful of gray-white paste, squeezed it tightly with his hand, squeezed it into a ball, and placed it in the fireplace, using the temperature emitted by the fireplace to dry it quickly.

"It seems to be fun." Liu Yimeng's eyes lit up, rolled up her sleeves and began to pinch the 'mud ball'.

Liu Yiqiu and the girl also took action.

Liu Yimeng held a fist-sized mud ball in her hand, and asked with a grin: "Is it okay to be so big?" "

"As long as it can be tucked into the fireplace." Chu Feng chuckled.

"Chu Feng, is this cement?" Yun Xin asked softly.

"No, there are two or three more steps." Chu Feng shook his head.

The four of them continued to busy, spending half an hour, and the fireplace and around it were filled with large and small clumps of grass and stucco.

"Okay, let's wait until they're dry before we move on to the next step." Chu Feng rubbed his fingers and rubbed off the sticky thick between his fingers.

"What's next?" Liu Yiqiu asked softly.

"I'm going to go to the creek and bring some sand back." Chu Feng said softly, the cement is ready to use sand, take advantage of the time now, go and move back first.

Although there is sand around the camp, there is very little, and there are many wood chips, grass blades, mud, etc. mixed together, which cannot be used at all.

If it is a bit of a waste of time and energy to pick up dirt and impurities, it is better to go to the creek to carry some sand back.

"I'll go with you." Yun Xin hurriedly said.

"No, I'll be back soon." Chu Feng chuckled and reached out to rub the girl's head.

The weather is too cold, it is better for the girl to go out a little less, and he does not go far away.

"Then I..." Liu Yiqiu hadn't finished speaking.

Chu Feng interrupted and said, "I don't need a lot of sand, I'll transport it back in one trip." "

"Chu Feng, what are these danzi going to do?" Liu Yimeng asked curiously, she came to her aunt and couldn't follow her out.

"When they're dry, stuff them all into the fireplace and calcide them until they're hot and then take them out." Chu Feng said softly.

"Got it." The three women nodded one after another.

"I'm leaving." Chu Feng brought the cloak and carried two bamboo baskets and ropes to prepare to go out.

"Chu Feng, wait a minute."

Yun Xin called out to Chu Feng, turned out two pairs of linen pants made in the past few days from the wooden frame, and said softly: "Wear two more pairs of pants, warm up." "

"Can you still wear it?" Chu Feng said with a wry smile, he was already wearing three pairs of pants, namely two pairs of sackcloth ku and one pair of storm pants.

"Dressed, I specially made it bigger." Yun Xin said softly, shoving the linen pants into his hand.

"Okay." Chu Feng grinned, put down the bamboo basket, took off the stormtrooper pants outside, and put two pairs of linen pants in.

By the time he put the stormtroopers on again, the inside was already all stuffed, and it was almost at the limit of the stormtroopers.

"Then I'll go." Chu Feng picked up the bamboo basket, pushed open the wooden door and walked out.

"Come back early." Yun Xin stood outside the shelter door and waved his hand.

"Got it." Chu Feng waved his hand without returning, braving the light snow to walk towards the stream.

When he got up this morning, he had seen the sky, and it would snow lightly today, but it did not affect his travel.

A few minutes later, Chu Feng came to the edge of the stream in the shallows, which was relatively flat, and the sand would be left here after the stream washed.

The main thing is not to get wet feet.

After he put down the bamboo basket, he used a sapper shovel to remove the thin layer of ice and snow above the beach, revealing the sand below, and some stones of various sizes.

"Don't want a stone that is too big."

Chu Feng used a sapper shovel to pick apart the larger stones, shoveling the sand and small pebbles below.

"Click, click..."

The sound of the sapper shovel rubbing against the gravel sand made people get goosebumps and bumps, which made people feel very harsh.

Half an hour later, both bamboo baskets were filled with sand.

"Time to go back." Chu Feng straightened his waist, shook off the snowflakes on his cloak, and moved his body.

He bent down to carry the bamboo basket, and the other bamboo basket was carried in front of him, stepping on the thick snow and walking back.

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