Chapter 1815: Asbestos fiber cement board

Over the years, under Edward's governance, England has not improved, but it is still stable. The population previously lost due to war has also slowly recovered.

However, these populations are still too few. But it is a pity that now England is not Marin. Marin cannot promote and encourage fertility in England. So, even if you have any ideas, you can only wait until later.

Of course, in Northumberland and Isle of Wight under Marlin, he can still encourage fertility. Even in the border county and highland county of Scotland, Marin adopted the same method to encourage childbirth.

Because of the increasing output from the North Sea fishing grounds, Marin has now ordered that the region under the rule, whether it is his own manor or someone else ’s manor, will be subsidized as long as there are pregnant women. Of course, the subsidy is not money, but salted fish. If conditions permit, Marin will encourage boiled soup from fresh meat in the manor and give it to pregnant women first.

Not only that, Marin also ordered-to govern the manor by oneself, once a woman is pregnant, she can stop working and take "pregnancy leave". However, the benefits are quite a bit, even better than the average person. In short, pregnant women have priority.

Even in each town, Marin will set up a maternity hospital, which is specifically responsible for caring for pregnant women. In addition, the maternity hospital will have female doctors who have been specially trained in laparotomy and know how to use forceps as the main birth attendants to ensure the safety of production.

These technologies were ordered by Marin to ensure the safety of Angela when William was born. Nowadays, they are just used to ensure the safety of maternity in the country. Of course, now these maternity hospitals are all under the name of Marin's "Save the Knights" and become a legal medical unit recognized by the church, and enjoy the subsidy of the church.

In addition, Marin also ordered that when taking the bus, everyone needs to make a seat for pregnant women. In addition, beating pregnant women is strictly prohibited. If a pregnant woman is beaten up to cause a miscarriage, she will be severely punished. Because this is equivalent to murdering a new life.

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Speaking of the bus in Beihai, we have to mention the current public transport construction in Beihai. Before, Marin had been planning to build a cement road. However, he has been worried that the cement road is too dazzling and attracts attention. Therefore, when the two main roads of cement roads crossing north and south and running through east and west were built in the local area, other things were intentionally smeared on the surface of the road to cover the original appearance of the road, and the cement road was cut into pieces one by one It looks like a large stone slab stitched together.

But after Marin thought of the cement board road, he let go of those scruples. Then, the "infrastructure madness" mode was launched in Beihai.

To this end, Marin ordered the cement plant in Corner Brook in western Newfoundland to use the advantages of the local limestone mine and combine with the coal delivered by the Cape Breton Island coal carrier to expand cement production.

Then, on the native East Frisian Islands, Marin also ordered the restoration of abandoned cement plants on Baltrum Island and Langoog Island on the side, and expanded the scale to be used exclusively for the production of cement.

The cement production here originally came from shipping. For example, limestone, clay and fluorite are all wholesale from the markets of Hamburg and Bremen. The cement-burning coal was transported from the Newcastle Coal Mine across the sea, which was very convenient and cost-effective.

Then, Marin also built a large-scale brick factory and cement board factory near the steel factory in Krumhein for the production of brick and cement board. Iron and steel smelting produces a large amount of slag. These slags are very suitable for burning cement and bricks.

Of course, the establishment of a brick factory and a cement board factory beside the steel plant is not for the direct use of steel slag, but for the use of the terminal facilities near Krumhorn to facilitate the transportation of cement. After all, in order to operate this steel plant, Marin built a special wharf locally to facilitate the transportation of ore and coal. At the same time, a large number of soldiers were stationed to ensure local security.

The cement board factory will definitely attract the world's attention in the future, after all, it is the top material for paving the road. Therefore, a place that is convenient for transportation and not afraid of enemies coveting is needed. Obviously, the Krumhorn steel plant with a high level of security is a good choice. Moreover, setting up a factory here is also conducive to centralized industrial management and rational use of local infrastructure resources.

At present, the cement board factory of Krumhorn mainly produces two specifications of cement boards-240mm × 240mm × 53mm ordinary type and 240mm × 240mm × 26mm reduced thickness type.

Among them, ordinary cement slabs are mainly used for paving the main roads. Its thickness is about the same as that of later generations of red bricks, and it is strong enough to withstand the passing of the carriage.

For the reduced-thickness type, which was halved in thickness, the artisans of the cement board factory found that when laying non-main roads (that is, small streets and alleys) inside the city, 53mm thick ordinary cement was not needed Plate, half the thickness is enough. Because, those small streets and alleys are often for pedestrians, and rarely take a carriage. Therefore, half-thickness cement slabs are definitely enough.

In addition, the horse-drawn carriage is not a lot of rural roads, and this kind of thickened cement slab is enough. Moreover, after the thickness is halved, the cement material is also saved by half, which saves the cost of paving.

After thinking about it, Marin agreed with the opinions of the craftsmen and rewarded the craftsmen who proposed the reduced-thickness cement slabs. Because, this did save him half of the cost of road construction materials. Moreover, those small streets and alleys and secluded villages do not really need such strong cement slabs. After the thickness is reduced by half, the same material can be paved.

Stimulated by this reward, the craftsmen later proposed the idea of ​​adding asbestos fibers when making cement slabs, and produced asbestos fiber cement slabs with good strength. After testing, the cement slabs added with asbestos fiber are much better than ordinary cement slabs.

The craftsman Kaul, who proposed this method of making cement slabs and bricks, participated in the process of going south to help the Swiss build fortifications. At that time, Marin asked the craftsmen to go south with a large amount of cement, and made people purchase a large amount of asbestos fibers in Switzerland, saying that it was used for the manufacture of fiber concrete to increase the strength of the construction.

During the construction, Kaul remembered the concept of "fiber concrete" proposed by Marin, and found that asbestos fiber concrete is indeed stronger than ordinary concrete.

This time he was transferred to the cement board factory. When he made the cement board, he remembered-if adding asbestos fiber inside the cement board, can the cement board be stronger? Then, it turned out that his conjecture was right ...

After seeing the sample presented by the cement board factory, Marin came up with a word-asbestos tile ...

In later generations, asbestos tile is a very common large tile, which is an important raw material for building a house. The material is made of asbestos fiber (or glass fiber) in cement. Even later, many car brake pads of later generations were also mixed with asbestos fiber.

However, before crossing, Marin seems to remember that when the brake pads of the car are friction-assisted, asbestos dust will be generated due to friction ~ www.wuxiaspot.com ~ If these asbestos dust are inhaled into the lungs, they can cause lung disease, Can cause lung cancer.

Of course, this statement is slightly exaggerated. However, Marin knew that during the production of asbestos tiles, it is inevitable to produce a large amount of asbestos dust. If asbestos shingles are manufactured for a long time, and there is a lack of safety protection, there must be a big problem.

However, after the asbestos tiles are made, there is no harm. Because as long as there is no asbestos dust, it is difficult to cause harm if it is not inhaled into the lungs.

In the same way, the finished cement brick made of asbestos fiber is not harmful. After all, this is just road material, and people will not deliberately grind and inhale asbestos dust on the ground, so there is basically no harm.

The cost of asbestos fiber itself is low, and the German region is an important asbestos producing area. In addition, Egypt, Greece, including Italy, are asbestos producing areas of Chinese medicine. Because of the large production volume, the use is not very wide. Therefore, the price of asbestos is not expensive. Used to make asbestos fiber cement board, the cost is not high, but the quality has improved a lot.

As for the high quality of asbestos fiber cement board, Marin will not give up this good commodity because of the health hazards of future generations. Therefore, the asbestos fiber cement board has become an important product of the cement board factory, and the craftsman Kaul has also won the Marlin's heavy award ...