God-level Consort of the Tang Dynasty

Page 946

He just fell asleep.

Unexpectedly, when I woke up, these two guys had already polished the raw materials.

Check it out for yourself. Although it seems shoddy, it is not easy with the current level of equipment.

"Next... Next, let me think about it!"

Duho had no experience in producing cement, nor did he have an exact theory.

All of this was his own conjecture.

Snapped.

After slapping his thigh, Du He said, "Well, the next step is the crucial step!"

Afterwards, Du He directed Lu Yuan and Hou Yi to put the raw materials that had just been polished into a large iron furnace that was more than two people high, and began to calcine them.

This is a coal stove specially ordered by Du He before, and its only function is to quickly burn bricks of various shapes for use in special places.

Today, this stove comes in handy.

This calcination is a crucial step, the most basic requirement is to have the combustion temperature reach over [-] degrees.

In the absence of a combustion aid, the furnace cannot be modified on site. The only way is to add a cowhide bellows.

A total of six large cowhide bellows were whistling towards the bottom of the furnace, and blue flames soon appeared on the top of the furnace.

This work is naturally handed over to other workers.

Just when Lu Yuan and Hou Yi thought they could breathe a sigh of relief, Du He suddenly came over and said, "It takes at least three or four hours to calcine the raw materials. Go and polish that pile of plaster. Ask and polish it." The ingredients are the same."

Lu Yuan's sore wrist couldn't help shaking.

Du He said empathetically, "You can find a few donkeys to pull the mill."

Lu Yuan was completely moved.

He opened his mouth, just about to say that the young master still loves us.

brush.

But Hou Yi standing next to him stood up and said loudly: "No, county magistrate, I know, you are sharpening our minds, this bit of suffering is nothing, let Mr. Lu and I do it, we must do it Better than a donkey."

"Oh?" Du He was a little surprised, "Since that's the case, it's best, work hard, I'm optimistic about you."

"Please don't worry, the county magistrate!" Hou Yi said happily.

Lu Yuan almost vomited blood.

This is such a scam!

……

When it was almost dawn, the raw materials were finally calcined.

After the high-temperature raw materials cooled down, Lu Yuan and Hou Yi also polished the gypsum.

The two supported each other to see Du He's next work.

Du He carefully inspected the calcined raw materials. Although there are still many deficiencies, they can still be used.

The next job, to put it simply, is to mix the calcined clinker with the polished gypsum.

However, Du He didn't know what the mixing ratio was.

So he did three experiments before and after, and finally he roughly determined the ratio.

After mixing the clinker and gypsum powder according to the determined ratio, a bamboo sieve was obtained, and the finished cement was passed through seven times, and finally the embryonic form of the cement of later generations could be seen.

Du He personally took a handful, stirred it with water, and put it in the open air. Within half an hour, it became hard.

Become!

This is the first pot of cement in the world in this era.

This is one small step for Duhe, but one giant leap for mankind.

This should be recorded in the history books.

But when Du He looked back, the scene was not spectacular.

A wooden barrel was full of cement, and two ashen-faced guys squatted beside them, looking at the black cement ash, as happy as hell.

"It's done, magistrate, I'm going to build the stele!"

Hou Yi stood up, carried the cement weighing seventy or eighty catties, and ran away.

Leave Du He and Lu Yuan messy in the wind!

……

The next morning.