Comprehensive martial arts: The beginning is to make peacock ling

Chapter 73: Rubber, Carriages, and Cement.

Chapter 73 Rubber, Four-Wheeled Carriages, and Cement

This is the specific thing, after healing, Xie Yanke was arranged in the Phoenix Villa, and temporarily became the bodyguard of the villa.

After listening to the explanation, Li Luoyun finally let go of his heart: “Well, with Senior Xie here, the safety of the mountain villa finally does not have to worry.” ”

Qiu Fengtong looked at the time: “The time is almost up, we should also go.” ”

“Yes, let’s go.”

Li Luoyun shouted, and the convoy slowly set off.

From Funiu Mountain to Bianliang, there are hundreds of miles in the middle, this distance is not close, fortunately, all the way are official roads, the speed is not slow.

It’s just that Qiu Fengtong is very uncomfortable, although the speed of travel is okay, but the main thing is too bumpy, after all, in this era, even if it is an official road, it is actually just a dirt road, at most a little sand and gravel on it.

But such a road, as long as it rains a few times, sand and gravel will be trampled into the dirt, the road surface should be potholes, bumps or bumps.

And it just so happens that it is the end of summer and the beginning of autumn, the sky is sprinkled with ox hair and autumn rain, although it is not big, but the ground is also wet, becoming muddy, and the autumn rain falling on the body is even more icy and biting, so that Qiu Fengtong is a little unbearable and hides in the carriage.

“Hey,, it’s almost there, it looks like the rubber four-wheeled carriage and cement have to be brought out.”

After walking for ten days, he was finally almost at Bianliang, and Qiu Fengtong felt that the pi shares that almost did not belong to him at all, and the unhappiness in his heart was to the extreme.

No wonder the ancient people went out a long way, it was the same as life and death, not only the difficulty of contact, but also this road, whether it was riding a horse or a car, all the way to the wind and rain, bumps and bumps down, life is first half gone, and then accidentally get sick, then basically not far from death.

“Rubber four-wheeled carriage and cement? What is that? ”

Xiaomeng opened her eyes and asked curiously.

Speaking of this, Qiu Fengtong also had to admire his wife, in such a shaky carriage, she could still meditate calmly, according to her words, her heart was calm and naturally cool.

At the beginning, Qiu Fengtong still wanted to follow suit, but it was obvious that his state of mind cultivation was not yet at home, and he couldn’t calm down at all, and after an hour, he was upside down and didn’t even memorize the [Nanhua True Sutra], and he couldn’t calm down at all.

“Rubber is the rubber produced by rubber trees, after special treatment, it has strong elasticity and ductility, can be made into wheels, reduce bumps, but I mean that rubber trees are produced overseas, Daming should not have it, don’t think about it.”

Qiu Fengtong casually explained that even if rubber is not made into pneumatic tires, even if it is made into solid tires, it can greatly reduce the bump length of the wheel… At the very least, it’s much stronger than wooden wheels.

Unfortunately, the origin of rubber is Nanyang, and he can’t go to sea for the time being, I’m afraid he won’t be able to use rubber wheels in a short time.

But this is not a big problem, no tires can be used in other ways to suspension, and when he turns back, he designs a shock absorber to install on the carriage, which can also reduce most of the bumps.

“As for the four-wheeled carriage, it is a four-wheeled carriage, although many people feel that the four-wheeled carriage cannot be turned, but in fact, as long as the front two wheels are turned into movable wheels, and a steering device is added, the four-wheeled carriage can also be steered, which is not only more stable, but also the carrying capacity will be greatly improved.”

You know, the two-wheeled carriage cannot maintain absolute balance, not only the efficiency of carrying goods is inefficient, but also a considerable part of the weight is pressed on the livestock, that is to say, the livestock pulling the cart not only has to pull the cart, but also has to bear a part of the weight of the goods.

The four-wheeled carriage is different, because there are four wheels, which can carry all the weight of the goods, not to mention, but also maintain balance, and the cattle pulling the cart only need to pull the cart away, and no longer have to bear the weight of the goods.

This also means that even if it is the same horse, when pulling a two-wheeled carriage, pulling five hundred kilograms is already the limit, but if it is a four-wheeled carriage, it may easily pull away eight hundred kilograms of things, which is completely different.

“What about cement?”

Knowing the rubber and the four-wheeled carriage, Xiaomeng asked about cement again.

This is also her strange place, there is water and mud on the road, shouldn’t it be more difficult to walk?

“The cement here, not the kind of cement you think, is the name of a material.”

Qiu Fengtong saw her doubts and explained with a smile: “Its material is a kind of lime, and other messy things, mixed together in a specific proportion, sintered at high temperature, and then after a series of processing, and finally formed a powder material.” ”

The reason why it is called cement is because the color and soil of this thing are very similar, and water needs to be added when using it, so it is called cement.

Cement is put in a mold after adding sand and water, and when it dries, it becomes very hard, not inferior to stone, and not bad for a hundred years.

“More importantly, the cost of this thing is very low, although it has not been cost-effective, but even if it is expensive, the cost of a thousand kilograms of cement, how can it not exceed five pounds of silver [mainly the fuel price is too expensive, Ming Dynasty coal per 100 catties of 1.3 dollars, this price refers to the [Ministry of Works Warehouse Instructions]], and the larger the output, the lower the cost, if a performance burns 100,000 catties, the cost per thousand catties will be reduced to about one dollar… A thousand pounds of cement can at least pave a road. ”

In fact, this is already Qiu Fengtong, according to the C25 specification of a concrete weight of 2.4 tons, the amount of cement required is 305 kg, laying a kilometer is about 250 to 260 square meters.

Based on 250 square meters, the amount of cement used in one thousand meters is 152,500 kilograms, the demand per meter is 152.5 kilograms, and 457.5 kilograms of cement are needed for one zhang and three meters, and one thousand kilograms of cement is enough to lay two zhang of road surface, and there is still surplus.

And you know, the autumn phoenix tong here is laid according to the specifications of later generations, there are too many vehicles in the future generations, and the road surface has to be thickened, otherwise it will be crushed in less than two years.

But in ancient times, there were no such concerns, and ancient vehicles were not only fewer, but also lighter in load and less demanding in width, so even if the thickness was reduced by half, such a road surface was enough for a long time.