Prince Jing was silent for a moment: "Okay, but some things involve military strategy, and I won't let those secrets leak to the people. And you have to understand that letting him enjoy some things like a child's jade will cause trouble."

Bai Li stretched out his little finger: "Anyway, you promised me, pull the hook."

"Okay, okay, pull the hook."

The carriage slowly stopped in front of the kiln door. Before Feng Daban could put down the footstool, Bai Li had already opened the curtain and jumped out.

Feng Daban said anxiously from behind: "Hey, princess, please slow down, the muddy road is slippery!"

As soon as he finished speaking, Bai Li ran through the gate and disappeared.

Prince Jing's cough came from the car, and Feng Daban turned to look: "Your Majesty, how are you doing?"

Prince Jing smiled: "I feel better after drinking the medicine from Dr. Yao... Why is it so warm here? Go in and take a look!"

At this time, in the kiln factory, a solid inverted flame kiln fell into the middle, and coal was being thrown into the combustion chamber by shovels by Chen Ji and others.

A raging fire ignited and swept through the closed inverted flame kiln. The raw materials were swallowed up by the flames, melted, and sintered bit by bit.

Prince Jing stood silently in front of the kiln. He could not see what was happening inside the kiln, he could only feel the heat waves coming towards his face through the kiln wall.

He looked at Wang Kezhi: "How?"

Wang Kezhi said sternly: "Your Majesty, the flame is close to white, and the temperature is higher than we imagined."

"What are they burning right now?"

"cement."

"How much longer?"

"This is the third furnace. Before dawn in the morning, they had already fired the first furnace and built a brick wall with the clinker from that furnace."

It was only then that King Jing noticed that there was a brick wall in the corner of the kiln, and there was plaster adhering between the brick joints.

As soon as he finished speaking, Chen Ji stopped shoveling coal, looked at Prince Jing with a smile, and handed out a hammer: "Your Majesty, please take the hammer and hit the brick wall to see if my cement can replace the glutinous rice mortar.

"

Feng Daban said from the side: "My lord, you just drank the medicine, please come and take the medicine."

Prince Jing looked at the brick wall but shook his head: "No need, I will do it myself."

After that, he dragged the hammer to the brick wall and swung the hammer vigorously. He saw that some of the stone skin had been smashed off the blue bricks, but the brick wall was extremely firmly adhered and did not move at all!

Prince Jing hammered a few more times and finally knocked down a few green bricks.

When the prince saw that the wall was broken by hammering, he looked at Chen Ji worriedly: "What should I do? It's not strong enough."

However, the next moment, I heard Prince Jing ask: "This wall was built this morning?!"

Wang Kezhi explained: "Reporting to the prince, I watched them build the base this morning."

Prince Jing continued to ask: "If it is glutinous rice mortar, how long will it take to reach such strength?"

"Reporting to the prince, the glutinous rice mortar will take ten days. If this cement is used to repair the city wall in the border town, it may have miraculous effects."

King Jing asked again: "How long will it take them to boil this cement?"

"Replying to the prince, it's less than one stick of incense. If you change it to glutinous rice mortar, it needs to be boiled on site for four hours and then left to stand for two hours before it can be used."

King Jing asked again: "How much do you think this thing costs?"

"Reporting to the prince, the raw materials for this product are only clay and chalk ash, and the cost is less than one-fifth of the glutinous rice mortar. If the materials can be obtained locally, the cost will be less than one-tenth after excluding the transportation requirements..."

The prince was silent. As the saying goes, laymen watch the excitement, and experts watch the door. Only military craftsmen like Wang Kezhi can understand the significance of cement to this era.

Prince Jing looked at Feng Daban and said, "Go and invite Mr. Zhang Zhuo and Mr. Chen Liqin and Chen to come over."

Feng Daban was confused: "Your Majesty, Master Zhang still needs to preside over the autumn palace affairs of Gongyuan today, and Master Chen also has to deal with river embankments and river affairs. I'm afraid he won't be able to come."

Prince Jing smiled and said, "Then tell Mr. Zhang, isn't he worried about how to build houses to solve the problem of the refugees in Yuzhou? Now his problem is solved. With this thing, the refugees can have some temporary shelter. If there are no deaths in Luo City this winter,

, this is Zhang Zhuo’s great political achievement. Compared with this matter, Qiu Wei is nothing, he knows which is more important than others."

"What about Mr. Chen?"

"Tell him that his river embankment can be saved."

The prince suddenly cheered, Bai Li looked at him and Liu Quxing with a smile, and She Dengke raised Chen Ji together: "It's done! It's done!"
Chapter completed!