Under Lin Zifan's orders, three groups of people, Ma Yo, began to act.

Asphalt roads, this thing is not uncommon in China, and it can even be said that it is extremely common! For example, the highways that have long run through the country are basically asphalt roads.

And the paving of asphalt roads is not just simple and practical asphalt!

Bitumen, as one of the main materials, and secondly, various ores are mixed with it to form asphalt concrete, and only then can the paving gradually begin.

But even asphalt concrete has different specifications, which in fact, there is not much technical content, as long as you understand a little, you can know its principle.

Before crossing, although Lin Zifan was a chef, he also liked to try and understand all kinds of things, and it just so happened that he had also learned about the paving process of asphalt roads.

"Why do you let them get so many stones?" the empress stood beside Lin Zifan, a little puzzled: "If it is a paving road, you should try to choose a boulder, this kind of largest stone is not the size of a human head, it is not used, and the paved road is uneven, just like not paved." ”

"Your Majesty, these stones are needed for the paving of asphalt roads. ”

Lin Zifan explained: "Generally speaking, if you want to pave an asphalt road that is strong enough for perennial use, you need to lay three layers of upper, middle and lower layers!"

"The lower layer, using stones the size of a human head, is thoroughly mixed with asphalt, laid on top of the compacted pavement, and pressed again to remove as much air and gaps as possible!"

"In the middle layer, a slightly smaller stone is used, and the other processes are similar, but the overall layer is much thinner than the lower layer. ”

"The upper layer is the thinnest, and the smaller the stone used, so that it is smoother and the air gap is smaller after compaction......

Empress: "I don't understand......"

"Your Majesty, you look at it, before dark, it should be completed, and by tomorrow morning, it will be able to bear fruit. ”

Lin Zifan shook his head and smiled, not surprised by the empress's stunned expression.

In fact, asphalt roads seem to be simple in supply and demand, but in fact, all aspects need to be considered!

Especially in the problem of sturdiness and durability, in China, the service object of the highway is all kinds of vehicles, but even so, the asphalt concrete required also has high specifications and requirements!

What's more, the Tang Dynasty repairs roads, and the objects it serves are all kinds of mounts, and these mounts are varied, and the wildebeest is the most common and mild, and it may not be too destructive, but if you encounter the mounts of 100,000 people from the mountains......

What scorpion king eight spiders, and even all kinds of beasts of amazing size......

These things, even if they are just running, have a very strong destructive power, if the asphalt road is not strong enough, I am afraid that it will not last for a few days and will be scrapped!

It is because Lin Zifan must improve the specifications and lay the upper, middle and lower layers in accordance with the regulations!

If you dig deeper, there is a lot of knowledge in it, and it will even involve many chemical formulas, and Lin Zifan can't say clearly.

But just making a working asphalt road is no longer a problem.

After all, if you really want to investigate it, what kind of pavement is waterproof, anti-deformation, and porosity is less than what percent, Lin Zifan can't calculate it at all, and he doesn't have those instruments.

You can only rely on your feelings to get the best you can, and as for whether it's the best or not, you have to lay a section of asphalt road first.

The strength of everyone in the Ministry of Industry is good, or in other words, in Datang, Lin Zifan has never seen a few adult women with poor strength!

And because they are all good, they are also very efficient in doing things!

For example, the people of the tree cutting team rushed up one by one, very fast, and then drew their weapons, and a sword was a big tree that fell in response, and then, with a bang, the sword flew over, and it was impossible to see what was happening!

And when they stopped, a giant log had been peeled!

Immediately afterwards, one of them carried the original, which at least weighed thousands of pounds at a glance, and walked like a fly......

With this kind of work efficiency, can it be particularly unhappy?

The speed of the digging team is also extremely fast, one by one they don't need to dig at all, they just use their fists to smash! You come and go, dozens or hundreds of punches go down, a big pit about two meters deep and more than six meters in diameter has been formed, and even if Lin Zifan hadn't stopped it quickly, they could have 'smashed' deeper!

And because this big pit is not dug out, but smashed out by brute force, the bottom of the pit and the surrounding area are extremely hard, much stronger than ordinary rocks, and it is perfect for mixing asphalt or something......

Immediately afterwards, the digging team began to get asphalt into the pit in batches.

This time, it didn't take Lin Zifan's reminder, they carried their swords, brushed a few knives down, and then split a ditch, which extended to Heishuize.

When the ditch was opened, they just had to stand on the edge of the black water and watch the 'black water' slowly flow into the big pit. When there are animal carcasses or other debris nearby, they use sticks to pick them up......

Work efficiently and quickly!

But the work of the 'quarrying team' has encountered problems.

They are fast and powerful, but the problem is, there are not enough rocks nearby!

Near Heishuize, the soil is relatively soft, and there are not no stones, but there are very few that meet Lin Zifan's requirements.

In addition, it is those boulders of 10,000 catties, or even hundreds of thousands of catties, or it is more appropriate to call them hills......

Therefore, when the tasks of the other teams have been completed, the tasks of the quarrying team have just begun......

Seeing this, several members of the 'Tree Cutting Team' team also joined in, and ran farther away to find stones, but they were still not optimistic, although they could bring back a lot of stones every time they came back, but they could still be described as a drop in the bucket.

"If it goes on like this, I'm afraid it won't work......"

Lin Zifan frowned, he thought that the most important thing in this wilderness was stones, but now it seems that ......

"Hmm? wait......"

Suddenly, he had an idea, looked at the boulder hill in the distance, and then at the empress, and was a little hesitant to speak......

"If you have something to say......"

The empress looked indifferently and looked into the distance, but she sensed what Lin Zifan wanted to say, so she took the initiative to ask.

"Your Majesty......" Lin Zifan grinned: "I said, don't be angry." ”

"Say!" the empress was neat.

"The minister wants His Majesty to get a stone......"

Empress: "......"

Tsing Yi purple wiped cold sweat: "......"

The two women looked at each other, and they were a little stunned.

Lord Lin, this is eating the bear's heart, the leopard's gall, wow, let Your Majesty move the stones? This ......

"Lord Lin, if the progress is slow, let's go with the two sisters, you and Your Majesty just watch......" Ziyi Lian helped Lin Zifan speak.