While Long Hong sighed, the engineers of the construction team of the Ministry of Communications, who came with him, also jumped out of the car. As soon as he jumped out of the car, the muffled sound of "tuk" on the road under his feet caught his attention.

He looked down at the pavement carefully, and the pale yellow, with light horizontal stripes, did not know how long it had been built. The striations were filled with some dust and dirt.

Rubbing his foot along the horizontal lines of the ground a few times, the dirt and dust were instantly driven away. He was surprised by what he saw, and lowered his head to study it carefully.

"Xiao Li, bring me my magnifying glass."

Hearing his words, the young man who had just jumped out of the car said,

"Mr. Wei, what's so nice about the pavement, I don't believe this pavement is better than our asphalt pavement."

"I told you to take a magnifying glass like a magnifying glass, what are so many words."

The engineer surnamed Wei, who was observing the road, stared at the road with his eyes, as if he had found some terrible treasure.

The reprimanded young man struggled to climb back into the back of the truck.

"Driving...... ...... driving"

Then there was a sound of the whip, and following the sound, I saw a four-wheeled carriage coming from the dirt road. The cart behind it was full of food.

At this moment, it is no longer the time when the paratrooper school is short of food, and the agricultural production technology that uses sack planting and drip irrigation has made the paratrooper school have a bumper harvest of potatoes.

As Zhang Sixing said, the land was not just used for food, but was produced into potato chips, fries and other snacks made from potatoes.

In fact, many people who think that they can't eat in China produce this kind of food, and there should be no market. However, it wasn't long before it became clear that this snack with a wide variety of flavors and varieds quickly became a favorite cheap snack for adults.

Not only that, but the good potato harvest also produced the following changes.

The potato trees are crushed and fermented directly into biogas, which not only produces biogas, which is used to supply the paratroopers school with heat, but also easily produces a large amount of natural fertilizer flour.

And the carriage in front of them was not for the paratrooper school to deliver food, they were pulling the food in exchange for some simple production machinery and snacks that the children liked.

This grain cart has the four-wheeled horse-drawn carriage pattern common in American Westerns, except that it has four wheels 30 centimeters wide and thin teeth on the wheels.

Despite the muddy roads, these wagons were able to slowly break out of the mud.

It was not difficult for the carriage to climb the pale yellow road built by the paratrooper school, there were some slopes at the heart of the road, and there was even a sign at the end of the road - "Please consciously wash the mud on the wheels on the road".

Not only that, but there is also a windmill in front of the sign, which can obviously lift water from the ground with a simple operation.

However, to everyone's consternation, the driver of the cart did not seem to see the sign, and continued to drive the horses pulling the cart with his whip.

The cart drove onto the road, and the mud on the wheels was quickly thrown off into pieces and splashed everywhere. The soldiers were reluctant to see it, not so much worried that the mud on the wheels would stain the road, but that the coachman was blind.

I didn't see what a car was here, and I thought with my heels that I should have known that there was a big man here, and he dared to go on a rampage. The soldiers, with their guns crossed, stood in front of the carriage.

"Phew"

The coachman took the reins and pulled the brake lever of the carriage, and the carriage stopped. The soldier with a gun in the car shouted,

"What are you talking about, I didn't see the words on that sign, the mud on your wheels is going to stain our car."

The coachman, dressed in sheepskin, hurriedly jumped down and identified the soldier, with a little worry in his eyes.

You must know that it is wartime, and it is easy to requisition grain, wagons, and strong men. If you pull yourself out, how can the family live?

He shrunk his neck, as if the wind on the highway was a little cooler than the mountain in the mountains because of the master in front of him.

"Hehe, boss, I am a farmer who delivers food to the paratrooper school. I don't have a good leg or foot, that's why I drove the carriage. ”

When he heard that he was sending food to the paratrooper school, the little soldier who stopped the car looked a little better, but he still said in a reprimanding tone,

"I didn't see the sign that said, wash the mud off the wheels before leaving, you are really lazy."

"Yes, yes."

The coachman who nodded his head should bear it and connect the connecting rod of the windmill to the water pump. As the windmill transported, the water pump also moved up and down, like a kowtow machine for oil production.

Soon there was a stream of water coming out of the water outlet, and the coachman took the bucket of water from which he drank the horse, and poured buckets and buckets on the wheels.

At this time, the reason why the horizontal stripes that increased the friction on this road were buried by the sand was clear, and Master Wei Gongcheng no longer cared about this matter, but picked up the magnifying glass sent by him to carefully observe the horizontal stripes.

It's easy to tell how long the road has been in use by the extent of the sediment, and the almost arc-shaped horizontal stripes under the magnifying glass are almost unworn.

"It's a nice pavement, even better than asphalt."

He muttered under his breath as he put away his magnifying glass, stood up and looked out into the distance.

It's a bit of a pity that such a plate was not uncovered, and to look at the structure underneath the road. It just so happened that at this time, Zhang Sixing was explaining to Long Hong the benefits of this kind of road,

"Commander Long, this is just a branch road connecting the Xiangyin Road, only ten meters wide, but our main road is fifteen meters wide. And this road is five meters wide on a slab, and we can pave as wide as you need. And the biggest advantage is that the pavement of this kind of road can be produced in advance, and as long as the roadbed is completed, the speed of that construction is several times faster than that of ordinary construction methods. ”

Listening to Zhang Sixing's introduction, Engineer Wei walked over. As an engineer, he has more questions to ask than Long Hong.

"But the road to manufacturing in this way should be very expensive, after all, this kind of plate is not easy to produce and there are many processes. And a highway is often thousands of kilometers, if it is produced like this, how many plates will be needed. ”

Zhang Sixing, who was chatting with Long Hong, heard the question asked by this person and knew that he was an expert in road construction. Like his whimsical way of building roads, he just felt that this way was extremely easy to repair.

And it was repaired, and it only needed to be re-paved and the road was straight again.

Of course, this method of road construction is incorrect, and I am afraid that we have to listen to the opinions of other experts. After all, the expert professors in the Republic of China, who were real experts and professors, were much more loved than the brick family called beasts in later generations.

"Look at me, President Zhang, let me introduce to you, this is Engineer Wei of the road construction team directly under the Ministry of Communications, and they are mainly responsible for the construction of throat parts and important roads and bridges. Hearing about your school's new road construction method, Engineer Wei insisted on inspecting it himself. ”

After that, Long Hong introduced to Engineer Wei with a smile on his face,

"This is Zhang Sixing, the principal of the paratroop school, Engineer Wei, you may not know that you are engaged in engineering, but he is a combat hero who came down from the battlefield of Songhu and Jinling to defend the battlefield."