The more new things you try, the more money you spend in this valley.
Not to mention anything else, just a sewer system and a cement road system, at least thousands of dollars of investment - a thousand dollars in the thirteenth year of Zhenguan, was enough to buy two houses in Chang'an City.
Anyway, in the view of Han Shan and others, these are all money that can be saved.
However, at Li Yuanjia's insistence, Zhang Wan still started to carry out the transformation as required. After going through the projects in Luzhou City and Prince Han's Mansion, he also tried it in the "industrial zone" in Zhuangzi, so the sewer system was built.
The experience is very rich, even if it takes only time to transform the entire valley.
Don't be in a hurry, you can take your time.
The key is that if it is rolled out at one time, a large number of manpower will be needed, and the masonry and other materials used will be much more expensive, so Li Yuanjia's request to him is just to complete it within the next five years. In this case, there is no need to add additional manpower and materials.
You can also buy it slowly or simply make it yourself, and the cost can be reduced by at least half.
As for the cement road...
This is not a question of whether Li Yuanjia is in a hurry, but a question of whether the materials are up to standard.
The cement road he had people build in his palace has already been smashed to pieces, because it only took a little more than a month for more than a dozen cracks to appear, and the durability is obviously not good enough.
So when inspecting the first cement road completed in the valley, Li Yuanjia calmly said to Zhang Wan, who was a little nervous: "Don't be anxious, take your time, we have plenty of time."
"Yes, Your Majesty."
Taking a deep breath, Zhang Wan said seriously: "We can now try out several new formulas every month, and then we will pave about a foot of pavement in the yard... only the one that performs best
, will build a real road in the valley, and we will definitely find the best formula in the future."
When he said these words, Zhang Wan was also full of confidence.
Because after so much time, the quality of the cement they made was getting better and better, and the road surface lasted longer and longer. Although after the cement road in Wangfu cracked, they no longer had the chance, but the king
The concern for them has never disappeared, and Zhang Wan will be called over once a month to ask questions.
There is never a shortage of people or money.
So as the quality of the cement he made became better and better, Zhang Wan naturally became more and more confident.
But at this moment, Han Shan next to him suddenly interjected: "Your Majesty, I dare to ask, in fact, the money you spent on this cement may be enough to pave a stone road in the valley. Why?"
Do we still want Zhang Wan to continue doing it?"
Frowning his brows, Han Shan looked puzzled.
After hearing what his father said, Han Lucheng, who had been standing respectfully beside him, jumped a few times and smiled bitterly.
Is this old man letting himself go now?
It was because he was always talkative that he was "assigned" to Zhuangzi outside the city by the king. But now he has become more talkative? Fortunately, the king is not the kind of person who can't listen to other people's words, let alone because of a few words.
If you say that, you will get angry, otherwise...
Sure enough, under Han Lucheng's anxious gaze, Li Yuanjia did not get angry, but said a little impatiently: "It's very simple, I asked them to make cement, never for the few roads in this valley, but for other, more important...
Important use... Alas!"
The sudden sigh at the end made Han Lucheng's heart skip a beat!
Of course he didn't know that Li Yuanjia was having a headache at the moment because of the cement issue. Now that this thing has been made, just like white paper and glass, the next step is to improve the process and reduce costs. It is a long but long process.
Full of hope.
But Li Yuanjia has some headaches about the use of cement.
The cost of building roads is obviously too high. I am afraid it can only be used in big cities like Chang'an and Luoyang. The only good thing is that there are no heavy trucks these days, let alone overloading, so once the quality of the cement passes, it will be completed.
Cement roads should last a long, long time.
But what Li Yuanjia wants to see most is to use cement to build houses.
How strong!
It's a pity that even if he is a construction idiot, Li Yuanjia knows that when building a house with cement, steel bars are used as the skeleton. And these days, let alone steel bars, which sound very powerful at first sight, even pig iron is extremely expensive. Who would give it up?
Used to build houses? And Li Yuanjia heard that the steel bars used to build houses must be specially treated, otherwise they will be very brittle...
Just when Li Yuanjia had a headache, Han Shan next to him also frowned.
The old man suddenly began to think, which made Han Lucheng, his son, suddenly nervous. He quietly walked over and tugged on his father's sleeves, and whispered: "Father, please don't..."
"Huh? That's right!"
Before his son could finish what he said, Han Shan suddenly opened his eyes and said in surprise: "Your Majesty is wise! I almost forgot that this cement can be used to build a house!"
"Well……"
Looking at Han Shan, Li Yuanjia suddenly felt dumbfounded.
Yes, cement can indeed be used to build houses, but it is not the reinforced concrete construction method of the future, but is used as an adhesive for masonry. Most houses these days are still wooden structures, and the mortise and tenon joint invented by our ancestors
The structure allows a strong and durable wooden house to be built without a single nail.
But on the other hand, green bricks have also appeared and become one of the building materials together with stone.
It's just that when building a house with blue bricks, you need to use adhesive to stick them together, so most of the time, mud is used. Some high-end ones use glutinous rice slurry, which is very strong, and of course the cost is also high.
Cement is perfect for being used as an adhesive for masonry.
For example, in the sewer system that Zhang Wan and the others are building now, the main roads are made of bricks and stones, and the adhesive used is cement...
So looking at the king's contemptuous eyes, Han Shan immediately thought of this, and his face suddenly turned red.
However, Li Yuanjia did not laugh at his old butler's idea. He just thought about it for a moment, nodded and smiled: "Okay, you don't have to worry about the cement. I will be useful in the future... Well, now that the glass workshop has
Once you move into this valley, you should keep an eye on me! Remember, unless I come in person, no one will be allowed to enter even if they come with my warrant, do you understand?"
"Yes, Your Majesty!"
With a chill in his heart, Han Shan immediately bowed in response.
This was not the first time that the king emphasized this matter, so he once again realized the importance and caution that the king attached to this glass workshop.
You know, regardless of the papermaking workshop or anything else, the king has never said anything like this.
And when he lowered his head and couldn't see, Li Yuanjia also scanned the entire valley, with a flash of ambition in his eyes: "This place will definitely let people know what productivity is in the future, and what knowledge is wealth..."