In the Jiedu Envoy's Mansion, Zhao Dezhao picked up the glassware in front of him and observed it carefully.

The firing of glass is the same as steel, it is easy to say that it is easy, and it is difficult to say that it is difficult.

Glass can be obtained by crushing lumpy raw materials (quartz sand, soda ash, limestone, feldspar, etc.) to dry wet raw materials, removing iron from iron-containing raw materials, and firing them.

Then, according to the needs, various neutralization effects can be carried out to obtain different colors and different layers of glass.

High temperatures as low as 500 degrees, or 1,200 degrees, can soften the glass, process it, or blow all kinds of glassware.

Just like the glass used to make wine bottles in later generations, it is completely different from the glass used to make doors and windows.

However, in order to obtain a true liquid glass solution, it is necessary to raise the furnace temperature to more than 1550 degrees Celsius, as in the case of steel. At such high temperatures, heat treatment, annealing, quenching and other processes can eliminate or produce internal stress, phase separation or crystallization of the glass, as well as change the structural state of the glass.

When the furnace temperature does not meet this requirement, it is impossible to make truly high-grade glass.

Although the purity of glass can be increased by adding soda ash, Huaxia is a region lacking soda ash.

The first revolution in glass took place during the Ming Dynasty, when Venetian merchants were able to melt the glass when the furnace temperature was not up to the required level by adding about a quarter of lead oxide to the glass.

However, such glass does not meet Zhao Dezhao's requirements for high-end glass products, especially microscopes, which require glass with a very high degree of purity.

All of this starts from the basics, and it is just a fantasy to make high-grade glass using current technology.

In the Ming Dynasty, it took him nearly forty years to make glass-ceramic because of his inexperience.

Now, of course, it won't take that long, because he already has the experience of upgrading the whole industry.

First, test equipment is made, and tests are carried out through these instruments to obtain three acids and two alkalis, and various chemical raw materials are purified.

And then with these chemical raw materials, whether it is a pro-solvent for steel or a pro-solvent for glass, it can be made.

Just like the production of lathes, no matter how complex lathes are, they are processed from generation to generation through simple lathes.

Without simple equipment, it is impossible to eat a fat man in one bite.

The first batch of fired glass was all kinds of beakers, fractionation flasks, distillation flasks, condenser tubes, etc.

Although the impurity content of these appliances is relatively high, it is enough to conduct some basic experiments.

Of course, Zhao Dezhao knows that for this batch of experimental equipment, I don't know how many equipment has been burned, but now that there are qualified products, it is worth spending more.

"How many of these bottles and cans have been fired?"

Liu Xiao glanced at Feng Yiyong and motioned for him to come forward and report.

Feng Yiyong took a step forward and bowed down and said: "A total of three kilns have been fired, the shape is simple, there are more than a thousand, and the shape is complex, there are only dozens. ”

Zhao Dezhao asked again: "Are those brothers still obeying the call?" ”

"They are very energetic in their work, and they are under the control of Yuan's commanders, except for poaching, they have not caused trouble. However, they stole a lot of the fired glass......"

"It's nothing, glass is still a rarity now, and in two years, no one wants it." Zhao Dezhao turned to Liu Xiao and asked, "Your Palace, the order has been passed down for several days, are there many people who recommend Hanjing?" ”

Liu Xiao shook his head and said: "The days are still short, there are not many people at present, and there are many sitting tigers on the street, who will turn their heels and recommend themselves." ”

Zhao Dezhao nodded. "There is no urgency in this matter, and when the officials from all over the country return to their jurisdictions, they will naturally come up. Where is the eldest sister today? ”

Later, I went to Yuliangping in the east of the city to check out the paper-making cellar and soap storehouse there. Does the second brother want to find her back? ”

"No, you go to the ironsmith and check the preparations. After all, the eldest sister is young, so I am afraid that there will be some omissions. Tong Liang. ”

Tong Liang hurriedly responded: "Yes." ”

"Have all the officials from all over the country been notified?"

"The chief and adjutant of the seventeen lands are all personally conveyed by me, and they will meet at the gate of the ironware workshop in the west of the city in the middle of tomorrow. On the side of Hanjing Mansion, Wang Fu Yin and Cai Tingshi also knew about it, and ordered the officials to go to the ironware workshop. ”

"Prepare the car and go to the resettlement site in the west of the city."

"Whoa."

The resettlement site in the west of the city has been preparing to build houses since last winter, and the underground drainage system has been dug up, but it has not yet been built.

In the southwest of the city, more than 20 brick kilns have been built, and they have been constantly firing red bricks and lime.

Compared with green bricks, the cost of red bricks is lower, and the process is simpler, but the alkali resistance is not as good as that of green bricks, and the life span is not as long as that of green bricks.

However, the cost and process determine that red brick is a building material worth promoting.

What's more, now with cement, the exterior of the building is covered with cement, which can also ensure the life of the red bricks.

Of course, this is also related to the soil conditions, there is a lot of clay here in Hanjing, and the fired bricks are naturally cooled, and the red bricks are produced.

In some areas in the south, the soil quality is different, such as the water towns in the south of the Yangtze River, where there is no shortage of water, and the green bricks cooled by water are more durable.

Zhao Dezhao came to the resettlement site in the west of the city, where there was no end as far as the eye could see, and only a ravines three meters deep and nearly one meter wide were left on the ground.

There is not a single house here, but according to Zhao Dezhao's request, as long as it is not a big tree that hinders the construction, it cannot be cut down, so you can see the big trees standing on this construction site.

These ravines extend in all directions and are designed to slope from south to north to the river.

A huge pit was built on the extension of the riverbank, which was designed to be large enough for 20,000 to 30,000 people to drain and purify domestic water.

The craftsmen and laborers only knew how to construct according to the drawings given by Zhao Dezhao, and did not know what Zhao Dezhao was going to do.

This is actually the sewer, the digester. The best fertilizer is to collect the manure and garbage in the west of the city for manure, biogas, and the remaining residue.

In ancient times, manure was sold for money for hundreds of years of history.

Therefore, Zhao Dezhao will not worry that the garbage involved cannot be disposed of.

Since you want to build a new city, you should start from the basics, in the west, south, and east of the city, you will build sewer pipes first, and then build houses.

Moreover, all the houses are planned uniformly, and they are two floors, not just one floor.

Of course, according to the custom of this era, a yard is indispensable for every household.

The house around the perimeter of the moat was regulated at the highest level, and this was intended for officials, and the further to the periphery, the smaller the house and the smaller the yard.

In this hierarchical society, the house is also a status symbol, and Zhao Dezhao will not only not destroy this hierarchy, but will continue to maintain it.

Because of these, it is the foundation of feudal social stability.

As long as it does not block the passage of ordinary people to ascend, everyone will support this system.

On both sides of the passage out of the city along the three gates, there will be no residents, but shops.

The road was widened to 50 meters, and a flower bed was set up in the middle to separate it.

But all this is still in the planning, and now it is still yellow earth, and where there is water, there are mud pits.

Zhao Dezhao made people jump down a sewer, looked at the height, and nodded with satisfaction.

The sewer is three meters deep, will be fixed with red bricks, cement, this height will be two meters, and then covered with reinforced concrete slabs, and then covered with soil and filled, and then built a clean ditch on top to drain water.

Such sewers can be used for decades, and even if they are rebuilt in the future, it is easy to rebuild because they avoid buildings.

Today's investment is mainly in building materials, and labor is not worth mentioning, because it is all free labor.

The imperial court didn't even need to produce food, so naturally someone would come to work.

However, Zhao Dezhao will not do this, he wants to cultivate a team in all aspects and conduct professional training.

However, he can produce a little food and a little salt at most, and everyone can work willingly.

On the way back, Tong Liang asked with some doubts: "Second brother, tomorrow I will have to practice with ministers from all over the country, and there should be no hurry to build a house, right?" ”

Zhao Dezhao smiled and said, "Have you seen the display picture drawn by the Ministry of Industry?" ”

Tong Liang nodded. "Look, don't talk about other people, even I looked at those houses and wanted to live in them."

"This is a benefit for officials, and we will inform you tomorrow. I am here today to show all the ministers, to let them know that I take their affairs most seriously. ”

Tong Liang suddenly realized, and immediately patted his ass and said, "The second brother is wise." ”

Zhao Dezhao smiled, unaffected by his sugar-coated shells.

As a ruling class, the most important thing is the extension of power, and the existence of officials is an important structure of power.

Without officials, his orders could not even be sent out of the Jiedu Embassy, let alone promoted to the countryside.

When his foundation was not yet solid, the officials who maintained Hanjing were maintaining their own power system.

And the people's hearts must always pay attention to maintenance, technological reform, industrial development, one day earlier, one day later there is not much difference.

But one day, people's hearts are scattered, and it takes ten times as much effort to redeem them.

He does not have a solid foundation now, he has all kinds of weapons in his hands, and the army does not have them, and these officials are naturally the most important.

Maintain them well, with the help of this power, even if Zhao Guangyi is not dead, he can break his wrist well.

In the Ming Dynasty, Zhu Di divided Beiping, didn't he rely on encircling local officials to turn his head and fight for the world.

"Stay, Cai Thorn Shi urgently reported, pig farm swine fever, now 500 pigs, has infected more than 100 heads."

Zhao Dezhao opened the car window and ordered: "Go directly to the Dongcheng Pig Farm." ”

Pepsi is waiting to be happy, Zhao Dezhao couldn't help but sigh, he was not on the right track, any accident could occur, and any strange things would be reported directly to him.

Swine fever is a trivial matter, but it is related to the supply of meat in the army, and soldiers must train without meat, and now most of the meat is procured.

And the procurement staff went to the countryside everywhere, and the procurement was difficult.

If you want to build a pig farm, you just purchased 500 pigs, and you encounter swine fever, which is also a bad year.