No Regrets In Flourishing Tang

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Autumn harvest and autumn farming take up a lot of human resources. More than 9% of the old 100 surnames are busy in the field, and the people who continue to build the railway are less than 100000. Although this is still a very large group, but Compared to the length of the railway line, it still seems to be understaffed.

In order to transport various materials and support the road builders ahead, Imperial Court has recruited a large number of carriages and related personnel in Guanzhong and Luoyang. Even the army ’s heavy horses and horses near the capital have been used in large numbers. The North Gate ’s 4th army ’s wheeled vehicles Only 1% of them were pumped, and their own grain supply was a problem. Sometimes they had to mobilize the soldiers to carry the grain and grass into the big camp with their shoulders.

The number of these carriages exceeded 5000, and most of them came from the caravans of Chang’an and Luoyang. After all, after the railway operation, a large amount of goods were transported by rail, and the carriage transportation between Chang’an and Luoyang was suffered. To the major setback, since there is not much business to do, only to switch to other lines of business or join the railway system, and after the Imperial Court decided to collect the carriage transportation materials, these people found an opportunity to make quick money and joined the transportation of railway materials. The team quickly became a supply lifeline for Armed Forces.

Of course, the supply team from Beijing is the main force, and almost all the rails are sent from here. However, for the grain and grass, the counties along the way have provided greater demand. Before the railway was built, before the autumn harvest last year, Imperial Court It has been ordered that the grains collected by the counties along the way be stored on the spot without having to be transported to Chang’an City, which facilitates the replenishment of the road construction and greatly eases the transportation pressure.

In addition, many of the counties along the way have a lot of forest resources. These resourced county towns are also responsible for providing sleepers for the railway system, and some county towns with mountains provide nearby gravel blocks, thereby further reducing transportation. pressure.

Nowadays, most of the 100 surnames in the counties along the way have gone back to the autumn harvest and farming, and new land and grain will soon be produced, and at this time, the counties along the way will cancel the collection of this year ’s land in accordance with the requirements of the Imperial Court. The 100 surnames brought their own food and participated in the Armed Forces building the railway, thereby further improving the efficiency of building the railway and reducing the pressure on logistics.

Of course, in addition to the backward carriage transportation, the freight steam cars and steam ships that were developed a few months ago have also been put into the action of transporting materials. After a few months, the number of steam cars put into transportation has reached 300 Although there are only ten steam ships, the number of towed transport ships is as high as 200, and the transportation volume is still very large.

Among them, the load of the steam freight vehicle is 5 times that of the carriage, and the efficiency is at least 2 times that of the carriage. In this way, a freight steam truck can hold at least ten carriages.

The transportation volume of the transport ship is much larger than that of steam cars and carriages. However, the speed is slower, and only part of the road leading to the west can be used. Most areas are not open to water, so the efficiency is also very limited, but it can be large Alleviate the transportation pressure in the eastern section, so that many carriages can be directly beyond a thousand li in the Western District of Beijing, waiting for the goods of the cargo ship to continue to transship further.

Of course, in the process of laying, most of the manpower is concentrated on the road section near Beijing, so the railway from Beijing has been laid for several hundred miles in a few months, and in this way, a large number of freight trains can be allocated. Shipped the capital of Beijing to a few hundred miles away.

In this way, no carriage and steam trucks are needed within 100 miles of the capital, and these vehicles can wait for supplies directly for a few hundred miles to transfer.

With the continuous popularization of machinery in the agricultural field, Li An believes that in a short time, more 100 surnames will be liberated from agriculture, thus joining the industrial and handicraft fields, making Great Tang more prosperous and powerful After the popularization of various machinery, the process of building railways will continue to accelerate, and within a limited time, more railways will be built, greatly promoting the commercial prosperity of the Great Tang Empire.

In these days of the autumn harvest, Li An’s attention to Artillery’s troops has continued to weaken, because Artillery has begun to get on track and does not need too much attention, so that more energy can be invested in mechanical Research & Development.

And Li An also lived up to expectations. In a very short time, Research & Development had a lot of practical machinery. The first to be put into production was the steam crane, which is a Divine Item specially prepared for laying rails. With this equipment, when laying rails , You can greatly improve the laying efficiency.

In addition, the Bulldozer also succeeded in Research & Development and put into production. The Research & Development difficulty of this machine is the smallest, but the power requirements are relatively high. For this reason, 3 steam engines were installed to increase the power and promote more Earthwork.

Of course, in addition to various machinery, Li An also invented many practical non-mechanical products, such as combined steel beams. When encountering a river that is not wide, build several piers in the middle of the river. The steel beam can directly These piers are connected to form a complete bridge.

Because the weight of the train is relatively large, the requirements for the pier and the steel beam are also relatively high. The steel beam will eventually be connected into an arch of each and everyone to resolve the pressure on the bridge deck and ensure that the steel beam will not break. The safety of train traffic.

These scientific research results were quickly applied to the construction of the railway, and the speed of the construction of the railway was effectively increased, so that the two railway arteries can be unblocked as soon as possible.

When building bridge piers, it takes a lot of time and manpower, which attracted Li An’s attention, and immediately decided to Research & Development a new material to be able to quickly build bridge piers, and there is still more The role.

This material is the cement of later generations, and its composition structure is extremely simple. It only needs to mix lime and clay. After simple treatment, the simplest cement can be obtained, and it can be used normally after adding water.

Of course, theory is the theory, and practice is the only criterion for testing the truth. After sending a lot of lime and clay to his subordinates, Li An officially began experimenting.

However, lime is very hand-burning, so Li An does not do it himself. These dirty tasks are exhausted, so that the people under his hand can do it.

After some trial and error, Li An finally mastered the best production method of cement, and the cost is extremely low, which is suitable for large-scale mass production.

There are a lot of lime and clay mines in Guanzhong, and the raw materials are far more abundant than iron ore. Therefore, as long as there is enough manpower, Great Tang will definitely not lack cement in the future.

After the success of Cement Research & Development, Li An immediately tested the concrete, that is, mixed cement, sand and crushed stone in proportions along the belt, thereby forming a stronger solidified solid.

Of course, reinforced concrete should be more solid. However, although the Great Tang Empire used black gunpowder to double mine iron ore, but due to the large demand for railways and various machinery, the iron material is still not enough, so the reinforced concrete is not It can’t be used too much, and it’s too simple to make reinforcement and add it to concrete.

Regardless of the two raw materials of cement, or sand and gravel, Great Tang has sufficient raw materials, and it ca n’t be used up to millions and millions of years, so cement and concrete these two distinct things are the most suitable for large-scale promotion.

Li An has already thought about it. In the future, the pier of the Great Tang Bridge will be made of concrete, even reinforced concrete, which will greatly improve the efficiency of construction and the strength of the manufacturing. The bridge body can also use the same material, so, in the future It is possible to build bridges on the Yellow River and the Yangtze River, so that the trade between the two banks of the river can be greatly improved, improving the lives of 2 people and promoting the circulation of materials.

Of course, the use of cement and concrete is not limited to this. Building hard roads, building strong houses, repairing city walls, etc., can use cement as a basic material, so the value of this promotion is needless to say of.

The premise of promoting all this is that we must get the support of Emperor and the ministers as soon as possible, let them understand the huge role that cement can play, and thus fully support the cement business of Great Tang.

Li An personally guided the subordinates to make cement blocks and concrete blocks, and let them carry these two distinct things directly into the Imperial Palace, so that Emperor and the ministers can see the performance of cement blocks and concrete blocks.

“Everyone, Minister Li carried 2 things in, and it seemed heavy, and each one required a dozen people to carry it.”

Court Eunuch quickly reported the situation.

“Oh, Minister Li has made something good again, what is it.”

“It looks like a piece of stone, but it is definitely not a stone, and the little slave can’t figure it out.”

Li Longji suddenly became interested, and stepped away from the Zichen Hall to welcome him personally.

“This Small Official see Your Majesty.”

“Minister Li, what is this?”

Li Longji was shocked when he saw the smooth cement blocks and concrete blocks. He was sure that he had never seen this thing, that is to say, these things were newly made by Li An.

“Your Majesty, this is the cement block and concrete block from the new Research & Development of This Small Official, which is dedicated to Your Majesty.”

Li An’s true colors are replied.

“Cement block, concrete block? How was it made?”

Li Longji asked, frowning. After all, even the most skilled craftsman, the surface of the stone bricks produced is not so smooth, and this surface does not seem to be polished.

Li An didn’t care about the leaks. In the face of Li Longji and many Court Eunuch, he spoke out the materials and process of making cement, and explained the materials and functions of concrete.

After listening to Li An’s explanation, Li Longji froze for a long time, he knew all these materials, and he knew that Great Tang had a huge amount of raw materials, but he did not know that after mixing these kinds of things, it could produce such a great effect, which exceeded His cognitive range.

“I really did not expect that these materials can be mixed together to make such a solid thing, which is even more powerful than burning city bricks with clay!”

Li Longji sighed with emotion and took the dust in the hands of Little Court Eunuch, smashing it hard with a few times, showing a satisfied smile.

“Your Majesty, cement and concrete are extremely strong, especially concrete, which is much stronger than city bricks, and it is difficult for swords to hurt their roots. Your Majesty allows guards to experiment with swords.”

Li An spoke suggested.

Li Longji felt that it was necessary to experiment, and immediately ordered that several guards at the gate of Zichen Hall strike the two pillars at will with the sword and long spear in their hands, and they would be rewarded if they were broken.

However, with the sound of a crackle, the 2 pillars were not at all hurt much, only the surface was damaged. Among them, the concrete block was damaged more seriously, and the concrete block was damaged less. In addition, it also splashed. There were a lot of sparks and the scene was quite lively, attracting a large number of onlookers. After all, such a big movement, everyone came out to see what was going on.

“Your Majesty, if you put on a big hammer, you will be able to break it.”

A bodyguard who was sore with both hands shaken, loudly said.

“Haha! The big hammer is ready, give it a try!”

Li An had already prepared the big hammer, but he didn’t take out that’s all. Try the formidable power of the sword first, and then try the big hammer, which is more enjoyable.

“Boom, bang…”

The formidable power of the big hammer is much stronger than the sword. After a few hammers, the cement pillar was smashed step by step. However, the concrete was still only injured, and gradually a small amount of wear and tear, after smashing dozens of times, Only one third of the material is wasted.

“Okay, almost, stop.”

Li Longji doesn’t want to watch it anymore. Through this performance, he already has a very clear understanding of the performance of cement and concrete. Of course, there is no need to keep the bodyguard down.

“Your Majesty, in addition to being strong, cement can also have an adhesion effect. After pasting two city bricks with cement, as long as they are dry, the two city bricks will be firmly stuck together, and they are inseparable. . “

Li An opened the introduction and asked his subordinates to demonstrate the use of cement on site.

In order not to stain the floor tiles of the Imperial Palace, Li An prepared several large wooden boards in advance and put them together as a place for mud.

This time demonstrates that Li An adopts the method of mixing cement and sand, firstly mixing cement and sand according to a certain ratio, then adding appropriate amount of water, and continuously stirring until uniform.

After the cement was reconciled, he piled cement on one side of a city brick, piled up the second city brick, and pressed hard.

Of course, since it is an experiment, it is naturally impossible to bond only 2 bricks. Li An asked his subordinates to bond all the more than 20 prepared bricks together, and in accordance with the principle of the pile-up element, criss-crossed, the more than 20 bricks The city walls are closely packed together.

In this way, you only need to wait for the cement to dry naturally. When the time comes, you can hit it with a sledgehammer to see the adhesion effect of the cement.

It takes a long time for the cement to air dry. After all, the cement made by Li An is ordinary and can no longer be used as ordinary cement. As for the quick-drying cement, Li An has not yet worked out. Maybe it will be done in the future!

And Li An obviously will not let Li Longji stand outside and wait for the cement to dry naturally, which takes too long.