Early the next morning, Song Yang came to the cement factory early.
But this guy Song Chengwang turned out to be older than Song Yang.
"Uncle Wang! Good morning!" Song Chengwang greeted with a smile on his face.
"Are there no classes today?" Song Yangpei asked with a curled lip.
"Hey, let Wei Nan give me a lesson. Aren't we burning cement clinker today? My nephew also wants to come over and have a look." Song Chengwang chuckled.
Having been in Jiangzhou for a while, Song Chengwang is no longer the cautious and timid prince he was before.
Mixed together with Wei Nan, Fang Zhe and a bunch of other kids, this kid gradually gave up his social fear and started to develop into a social cow...
"Okay, just take a look." Song Yang curled his lips.
"Pangqiu, let's get started. Take out the raw ingredients and prepare them for cooking."
Song Yang did not have a rotary kiln and could only use vertical kilns for calcination.
The quality of cement clinker calcined in shaft kilns is slightly inferior, but at this stage it can only be fired in this type of shaft kiln.
However, Song Yang's raw meal contains pulverized coal, which is just right for calcining in vertical kilns.
According to the encyclopedia records, Song Yang instructed Pang Qiu how to operate.
Add some water to the raw material and mix to make raw material balls with a diameter of 1 to 3 cm.
Song Chengwang started rushing to work again.
"Go, go, go and shake the bellows."
Song Yang pulled Song Chengwang away, thinking he was too much of a bother.
In order for the temperature of the kiln to reach the calcining index, a bellows must be used to blow air.
Daqian's traditional bellows are made of wood and sheepskin.
There are two types: hand-cranked and push-pull.
The one Song Yang uses is hand-cranked.
After Song Chengwang was driven away, he ran to the side and snatched the job of shaking the bellows, saying that Song Yang asked him to do it.
"Hoo ho ho!"
As Song Chengwang continued to shake, the temperature of the kiln rose rapidly with the support of the bellows.
The fuel for the kiln is fine charcoal plus a small amount of coal.
Although coal is the best fuel.
But with that little coal, Song Yang still wanted to use it as raw material for making cement.
It can only be used with charcoal mixed with coal.
Soon Song Chengwang couldn't move anymore. This thing was a strenuous job.
And it was very hot next to the kiln.
It was Minzhuang who came to take over, and Song Chengwang ran to Song Yang who was drinking tea in the pergola nearby and drank a bowl of herbal tea.
"Why don't you stop shaking?" Song Yang looked at Song Chengwang with a half-smile.
"Uh, I'm tired, I'm tired!" Song Chengwang said, wiping his sweat.
Song Yang curled his lips and ignored this guy.
While waiting for the clinker to be cooked, I was wondering about the coal mine.
Whether it is a steam engine, a cement kiln, or making iron and steel, coal is a necessary fuel.
However, there are no large coal mines in Jiangzhou, but there is coal in Pingxiang, but the distance is a bit long.
Pingxiang is located in Yuanzhou, south of Hongzhou.
It is definitely impossible to transport it by dry road.
But water and land transportation is possible.
The Jiangnan water network in this era was smoother than in later generations.
Daqian has its own map "Daqian Jiangnan World Map".
Although the recorded dimensions are not accurate, the contents of shipping and transportation are recorded relatively clearly.
According to the records of "Daqian Jiangnan World Map", there is a waterway called Pingshui River in Pingxiang that connects the Lu River, and the Lu River connects to the Xiangjiang River.
Once you reach the Xiangjiang River, you can go directly down the river to Daye and Jiangzhou.
However, the Pingshui River in Pingxiang can only carry small and medium-sized ships, and large ships need to be plowed in the Xiangjiang River.
Of course, the foundation of all this is based on the capture of Yuanzhou.
At present, it seems that there is still a long way to go.
In addition, there are two small coal mines near Huangshi, so it is not impossible to find them for emergency response.
Let Wang Ran take care of this matter later.
Thirty minutes passed before and after the thought, and the clinker was almost ready.
Song Yang stopped his thoughts and asked someone to take out the clinker.
I used an iron rod to pull the clinker and looked at it. I thought it was pretty good.
"It's not bad. Once it's cool, add a small amount of gypsum powder, then mix it together and grind it finely."
Hydraulic stone grinding and water hammer are ready this morning.
Crush the larger clinker pieces in the clinker, then grind them continuously in a stone mill.
"Uncle Wang, how long does it take to sharpen this thing?" Song Chengwang asked curiously.
"This is a delicate job. The finer the grinding, the better the quality of the cement."
Song Yang said while looking at the continuously rotating stone mill.
In this way, after nearly two days of grinding, the crushed clinker finally barely reached the fineness required by Song Yang.
This time, a total of about fifty kilograms of test products were made.
After loading the finished cement, Song Yang took some out, and asked people to find river sand and gravel, mix them with cement and mix them into concrete.
Then a cement floor was plastered with concrete in the shed of the cement factory.
It's just the size of a work shed and doesn't require much cement.
"Can this thing really harden?" Song Chengwang looked at the smoothed cement floor and asked doubtfully.
"It should be possible. Look at the loess used to build houses in the city. It's quite strong after it dries." Fang Zhe reached out and poked the cement floor and said.
After finishing the government affairs, Fang Zhe also came to see Song Yang making inventions.
When he arrived, he was laying cement floors for the cement factory.
"Don't worry. Our concrete is guaranteed to be strong!" Song Yang said confidently.
"Concrete? Isn't it called cement?" Fang Zhe asked doubtfully.
"That's what cement is. Mixing them together is called concrete." Song Chengwang pinched a handful of cement powder and explained to Fang Zhe.
This kid just started applying cement by himself, and he was already covered in dust.
But having fun playing with the mud that the prince had never played with in his childhood...
"Oh, I understand. This thing is a new type of triple soil?" Fang Zhe nodded and said suddenly.
"Okay, you can understand it that way."
Song Yang admired Fang Zhe very much for his ability to always find corresponding old models of new inventions.
This is true for nature classes, and so is cement.
"How long will it take to do this?" Fang Zhe asked again.
"It takes an hour for the initial setting, and it will take tomorrow for the solidification to complete."
After Song Yang finished speaking, he asked Pang Qiu to look at the cement yard to prevent the running children from stepping on it.
Then I told him to sprinkle some water on the cement floor from time to time.
"Don't worry, Your Majesty. I will definitely be optimistic about this concrete floor." Pang Qiu assured him, patting his chest.
He is the first director of the cement factory, and the success of cement is directly related to whether he can secure the position of director.
"Old Fang, there will be no shortage of food next year, so we can use more manpower to make cement."
"This way, we can use it no matter what projects we do in the future."
After returning from the cement factory, all that's left now is waiting.
After sending Song Chengwang back to scrub, Song Yang chatted with Fang Zhe about the application of cement.
Fang Zhe didn't know the effect of cement at all, so he could only listen to Song Yang talking continuously.
Of course, Song Yang doesn't care whether you understand it or not, he keeps introducing the benefits of cement anyway.
"Old Fang, you will know the magic of this thing tomorrow."
"Dams, buildings, fortifications, road construction, almost everything related to construction, he can use it."
"And this thing is much more convenient to use than Sanhe soil, and it is not afraid of rain."
"When the situation is completely stable next year, we can directly repair all the roads in the city."
“Then you no longer have to worry about getting muddy when it rains!”