Chapter 125 How to Make Lime

Limestone is a very important building material in the animal world. By heating it at high temperature and mixing it with water, and then adding soil, sand and gravel, it becomes an excellent solidifying agent.

Without limestone, there is no way to make mortar, and there is no way to use it as a reinforcing solidifying agent, so the choice is to use stones directly to increase the solidity of the land.

When Xia Tian heard Si Ye say this, she already understood most of what he said.

The so-called graystone should be limestone, with the chemical formula CaCO3, which is the main component of shells.

In ancient times, quicklime was usually made by high-temperature heating. The main component is calcium oxide, chemical formula CaO. This is what is commonly known as lime.

Then, by adding water, it reacts at high temperature to produce slaked lime - calcium hydroxide, forming a viscous lime slurry. After adding large particles such as sand and gravel, it can be used directly.

On Earth, humans have been using lime to build houses for more than two thousand years. It is an ancient and durable building material, but what Xia Tian did not expect was that Si Ye, as an indigenous inhabitant of the primitive beast world, actually knew how to use it.

However, since there are currently no raw materials for making lime, these ideas are just theories and are meaningless unless they are put into practice.

She didn't say much and handed the task of tamping the earth to Si Ye, and went to deal with the pile of loess she brought back.

【Real mud play scene】

"Hey, didn't you say you wanted to make a stove? And you want one made of clay?"

[The stove that was previously made of clay, right? I didn't film that part, so should we re-air it?]

Xia Tian spread large shiny leaves on the open space nearby, poured the soil in the backpack on one of the leaves, then brought a basin of water, initially sifted out the large particles in the soil, added a small amount of water and mixed it into soft and sticky wet soil.

The texture of this loess is very similar to clay, and it is stickier and softer than the ash soil used for the previous temporary stove. If it is used directly, it can be said that it will not be as strong as the previous stove.

However, precisely because this clay is so fine, after being heated at high temperatures, it does not expand unevenly and crack and become brittle like soils with a high sand and gravel content. Instead, it forms a hard material similar to clay, and the longer it is used, the stronger it becomes.

Of course, before that, the frame must be built with the same high-temperature resistant marble, which provides double insurance and greater stability.

"Bang, bang, bang—"

At this time, Si Ye was also tamping the earth simultaneously.

The audience in the live broadcast room saw a sturdy man through the high-definition live screen. He was holding a thick stick in one hand and a huge flat stone more than half a person's height tied to the other end. He was waving the huge homemade rammed earth tool like a sledgehammer.

The vibration was transmitted through the screen to every viewer watching the live broadcast, as if the area they were in was also vibrating.

[It’s really powerful, one person can operate it manually hahaha]

[This is amazing! The ground is visibly smoother now.]

[What did I say before? This is called rammed earth? Can anyone explain it to me?]

[It feels like a physical attack on the base, and indeed, great force works wonders!]

Xia Tian was also frightened by the man's exaggerated actions, which once again refreshed her understanding of the fighting power of men in the Beast World.

She glanced at her thin arms and legs, and thought that this body was even worse than when she was doing live broadcasts on Earth. She thought humbly, I can't afford to offend you, I really can't afford to offend you...

Play with mud, play with mud~

(End of this chapter)