I was a village chief in a primitive society

Chapter 231: I was stumped at the first step. (1 more request for customization)

Su Bai sat in front of the wooden table, shaking the pencil in his hand, and began to think about the making of cement.

He pursed his lips and frowned, looking very troubled. After all, cement is not a simple matter. Something that can be made.

Cement is one of the most common building supplies, it is essential for construction

"General cement is divided into three types: ordinary Portland cement, Portland cement mixed with mixed materials and special cement."Su Bai frowned and murmured to himself.

He picked up the water glass on the table, and when he was about to drink, he found that there was no water in it, and the slaves hadn't brought the boiling water over yet.

He still missed the fox-eared girl a little bit. , after all, when he was in the tribe, there was a full glass of water at his fingertips.

Su Bai sighed when he thought of this. He could only wait a few days until the fox-eared lady came.

He asked the slaves around him to urge the water. Is it boiling yet? I continue to think about the composition of cement.

"The main components of ordinary Portland cement are limestone, clay, and iron ore powder."Su Bai wrote on Pennisetum paper.

Ordinary Portland cement is made of limestone, clay, and iron ore powder ground and mixed in proportion. The mixture at this time is called raw meal.

Then the raw meal is calcined, usually at a temperature of 1450 The calcined product is called clinker.

Finally, the clinker and gypsum are ground together and mixed in proportion, and finally it is called cement.

"The main components of Portland cement mixed with mixed materials are limestone, clay, iron ore powder and mixed materials."Su Bai continued to mutter to himself.

He had thought about this knowledge for a long time. If he hadn't had extraordinary memory, he would have been able to remember the general contents of the books he had read.

In addition, his physique is getting better and better in this era, I am afraid it is true. I'm at my wits end

"The last type is special cement, whose main ingredients are limestone and other ingredients."

Su Bai tapped his index finger on the table and continued:"It's just that this kind of cement is slightly different in material stage and production process."

The difference he mentioned is that high alumina cement (aluminate cement) is made of bauxite and limestone that are calcined to obtain clinker, which is then ground into aluminate cement.

"But what is more rare is the clinker in cement."Su Bai frowned,"Their main ingredients are chemical ingredients and mineral ingredients."

The main chemical components of clinker are calcium oxide, silicon oxide, alumina, iron oxide, etc.

And its main mineral components are tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium aluminoferrite.

Su Bai shook his head repeatedly, rubbed the wolf's tail paper off the table, and sighed:"This is too unrealistic and cannot be realized."

After all, these cements have very strict requirements. If the ingredients are wrong, it may not be strong.

What's more, these ingredients can't be found at all now. It's completely unrealistic. He definitely doesn't have time to find these materials himself.

And Not to mention the tribesmen, they don’t know what these materials look like, how can they find them?

Therefore, forget about these chemical and mineral cements, it is simply difficult to achieve, at least under the current conditions.

Su Bai fell into After all the troubles, it is indeed not difficult to survive in primitive tribes.

No, it is not difficult to survive. What is difficult is that it is more difficult to live a better life. You can survive by eating some meat, but you have to live a good life. Some things have to be figured out after all.

"Oh, no, there is another way."Su Bai's black eyes suddenly brightened up.

He recalled a short video he had seen on Earth before. The content of the short video was about cement.

Su Bai looked excited, picked up a pen and paper and began to record. , and murmured to himself,"You can use plant ash to make cement. This is much better than those troublesome chemical and mineral ingredients."

The corners of his mouth couldn't help but begin to rise. He held a pencil in his hand and quickly started recording.

"The first thing is to collect some hay. Any hay will do, as long as it is a plant."Su Bai thought casually. What he was thinking of was using the ancient method of making cement from plant ash. This method is not only simple, but also not difficult to operate.

The important thing is that the materials are everywhere, and there is no need to worry about looking for any chemical ingredients. , mineral ingredients

"The second step is to build a kiln for burning plant ash."Su Bai continued to mutter to himself.

He picked up another chapter of Wolf's tail papyrus and began to draw the pattern of the kiln on it.

"The fired plant ash must be fine and there should be no charcoal or lumps."Su Bai said softly.

Half an hour later, a cylindrical furnace suddenly appeared on the Wolf's Tail paper.

The outside was just like an ordinary cylinder, except that it was empty inside and there was an outlet at the bottom.

The furnace The bottom inside the kiln is not completely sealed, leaving many small holes. These small holes are to allow the ash to fall down when the hay is burning. There is also a very large pit drawn on the bottom of the cylinder, and that pit is It was used to load burned plant ashes.

Su Bai took the piece of paper and looked at it carefully, and said with satisfaction:"I am really a soul painter."

The patterns on the pennisetum paper are very finely drawn, and every step is carefully drawn to ensure that the slaves can understand them during construction and not make some messy things.

He turned around and let the The slave went to call Yanjiao over. He still had to arrange for people to do these things.

"Tap tap tap......"

A few minutes later, Yanjiao entered the wooden house and asked:"Witch, what are your orders?"

Su Bai handed over the wolf's tail paper and arranged:"Let two groups of people do this, one group will build the kiln, and the other will build the kiln. A batch of hay collection."

Yanjiao glanced at the paper in his hand. Although he didn't know what to do, he still went out with a short head..........................................

"Please update for support and customization."