Traveling through ancient times.

The barren mountains surrounding the saline-alkali land are mostly composed of sedimentary limestone strata mixed with some gypsum.

We have all the important raw materials for making cement, but what is lacking is manpower.

There is no shortage of manpower in Zhuangzi now.

Next comes the grinding equipment.

For this, the only thing Jiang Yizhou could think of was to use a millstone made of relatively hard stone and then use water power to drive it.

Then comes the most critical point, calcination.

The temperature in pottery making is far from enough to calcine limestone and melt clay.

Jiang Yizhou thought of something. She once heard someone say that if you add layers of coal, that is, carbon stone, during calcination, the temperature will be higher.

So she immediately asked Brother Tao and others to start the experiment.

As for carbon stone.

Hundreds of stones are mined every day in Jiang'an County, and they are just making money directly from the mountains.

So the price is not high, about one penny per pound. Of course, this is for the rich. Ordinary people still can't afford it.

Jiang Yizhou easily bought carbon stone from a shop in Fusong Town and gave it to Brother Tao and the others.

About ten days later, he excitedly told Jiang Yizhou that the mixture they had cooked this time had reached the state she described.

Jiang Yizhou was overjoyed and immediately had someone grind it and then add water to conduct experiments...

However, this time it was not successful, but there were some gains.

As the process was presented one by one, the exchange price of the cement production process on Jiang Yizhou's exchange panel increased from 10,000 to 5,000, and then to 3,000.

Jiang Yizhou didn't expect that after all he had done, the exchange price of cement was still so high, and after that, no matter how he asked people to test it, the price did not drop anymore.

So, this is the lowest price of cement technology. It can be seen that there are profound skills involved. Unless she gets the formal technology, it will be difficult to make real cement just by exploring and experimenting bit by bit.

In order to build the road and for future development, Jiang Yizhou gritted his teeth and kept his promise.

A detailed drawing and the production process were presented in front of Jiang Yizhou.

When she saw it, she found that the process flow was completely tailored to her existing conditions.

To put it simply: now she only needs to integrate the steps of the previous experiments, and then the proportions of various raw materials, more precise control of the heat, etc.

Even with more detailed process guidance, Jiang Yizhou still ran back and forth between several workshops for nearly a month before the first batch of cement was officially produced.

Jiang Yizhou couldn't wait to start mixing it with water...

After a few hours, it became hard as stone.

Jiang Yizhou was so excited that he wanted to cry. He didn't expect that something that was completely unremarkable in modern times, commonplace and taken for granted in life, had to be produced with great effort here.

After careful consideration, Jiang Yizhou handed this work over to Tao Er to manage.

First of all, their loyalty to the Jiang family is beyond doubt. Secondly, after a year of getting along with each other, Tao Er has been relatively reliable in his work.

Jiang Yizhou told Tao Er not to leak the secret recipe of cement.

Tao Er immediately said that he would never tell anyone, even to his parents, wife, or children, and would never reveal it even if he died.

He had seen it before, just this powder, mixed with water, turned into stone in a short time. Such a miracle, just thinking about it will definitely cause a huge shock in the future.

Of course Jiang Yizhou couldn't believe it easily, so she spent a thousand merits to exchange for a soul-pulling thread, which she then inserted into Tao Er's brow along with the four threads.

Jiang Yizhou seemed to sense something.

Xiao Tongzi: "This will only be triggered when the other party has a different mind, and then the power of life and death is completely in your hands. Normally, it has no effect on either party."

Jiang Yizhou nodded, and then he felt relieved.

Tao Er, who was full of excitement, was completely unaware of this. He began to arrange personnel to classify various stones and, according to the instructions of the owner, vigorously produce this magical powder called cement.

In addition to separating the various steps in the cement production process, Jiang Yizhou also signed a confidentiality agreement with the workers.

In addition, she asked someone to go to the town to customize a batch of masks, gloves, etc. There is a lot of dust inside, so labor protection must be kept up.

According to the current production capacity, we can produce about three to four hundred kilograms every day.

This amount is still a bit small, mainly because the calcination and grinding processes are bottlenecks.

Seeing that he still had four or five hundred taels of silver left in his pocket, Jiang Yizhou invested decisively to build two kilns and two grinding workshops.

In this way, we can barely reach 1,000 kilograms per day.

After the cement was produced, Jiang Yizhou never thought of actively promoting it.

Because she understood that once this thing came out, it would definitely become the super killer weapon of this era.

So she immediately paved the entire village’s roads with cement.

All the ditches, whether they are lined with stones or not, are covered with cement, sand and gravel.

Without advertising, your own farm is a living signboard.

Then, Jiang Yizhou planned to convert the road from Yunshan Farm to Fusong Town into cement roads.

So, those who had just worked on the farm had not even had two days' rest when they received a message from the head of the Jiang family that he wanted to gather more people to build roads.

Since it is a straight road from Xiuyunshan Tianzhuang to Fusong Town, it certainly cannot be built along the previous winding path.

Instead, we cut through mountains and build bridges across rivers.

However, there are no big mountains or rivers in this area, just some small hills, which can be easily dug through with strong manpower.

Then mix cement, sand, gravel and water in a certain proportion and pour them directly on the leveled dirt road.

A few hundred meters were completed every day, and in less than a month, a flat and wide road that could accommodate four carriages in parallel was built, connecting Yunshan Farm with the outside world like a gray road.

Not only has the road become better, but the distance has also been shortened by half compared to before.

The cement workshop worked day and night, and finally managed to complete all the work before the cassava was harvested.

So when the caravans traveling from north to south entered Fusong Town and headed for Yunshan Farm, everyone was shocked by the smooth and unobstructed road.

This, this... is the rumored... cement road?

As businessmen, they have the keenest nose for new items.

More than two months ago, I heard that Yunshan Farm had produced something incredible again. It was an ordinary powder that became as hard as stone after being mixed with water.

Just apply wherever you want, convenient and quick.

Now seeing the cement road with their own eyes, it is indeed much better than the stone road: it is flat, without even a single gap, and the key point is... if they remember correctly, they had just been here two or three months ago.

It was more than ten miles long and was completed in just over a month. It was really fast and this cement is truly magical!

The news that Yunshan Farm produced the magical stone spread quickly and soon spread to Fusong Town and several surrounding counties.

When a group of merchants rushed to Yunshan Farm, He Jimin did not even take a carriage, but came directly on horseback with two followers.