Chapter 1782： Colonial road construction

As for helping the Netherlands build roads, it will expose the problem of hollow steel drum wheels, and Marin is never worried. Because the material for making hollow steel barrels is stainless steel ...

After all, it is a water-filled thing, and there is no qualified waterproof paint this year. Therefore, ordinary steel cannot make steel drums filled with water. Even if it is made, it is easy to rust. After all, ordinary iron is afraid of water, and it is easy to rust when it is wet.

In the absence of qualified waterproof paint, only hollow steel barrels made of stainless steel are not afraid of wind and rain, nor rust. After all, this is not an ordinary small iron bucket with a thin skin, which is not convenient for maintenance.

In order to maintain the gravity and strength of the rolled foundation, the entire steel drum is cast, otherwise the strength is not enough. Only the sealing part adopts welding technology and riveting technology. After all, this year can not cast a whole hollow barrel, at most can only cast open metal copper, similar to the principle of casting guns.

However, unlike the requirements of the cast gun, this hollow barrel does not require high wall strength. After all, it is only used for water pressure, and does not need to withstand the huge pressure of gunpowder blasting like artillery.

Of course, other countries can also imitate. The way is, instead of steel, use corrosion-resistant copper, cast a hollow drum, and use it as a roller for rollers after filling with water ...

But the question is, how expensive is copper? Who can be such a local tyrant? Marin, a real local tyrant, wouldn't dare to do this ... after all, the wheel is a durable and common tool on the construction site, if it is made of valuable materials ... You will get the wheel made of gold on the construction site in the future

As for the tin plating of empty barrels, how much tin water can be soaked in such a big iron barrel ...

Moreover, the tinplate is afraid of damage, and once it wears out, it quickly rusts and damages. By the way, it is the most prone to wear on the construction site ...

Therefore, in the construction of roads in Beihai, engineering equipment alone crushes all countries, making it impossible to compare with them. The emergence of hollow steel drum rollers has also made the road construction efficiency of Beihai State a big step.

In addition, the American colonies actually need this kind of hollow steel drum wheel. Because Panama, Cuba and other places there have tropical rain forest climates, and the land is relatively humid and not solid enough. It must be repeatedly rolled with heavy rollers to ensure the reliability and durability of the roadbed. Otherwise, the rain forest climate, the rainy season will last for a while, the roadbed will be soaked and soft ...

Marin ordered the casting of 100 stainless steel hollow steel drum wheels in one breath, and sent them to the humid tropical regions such as Cuba, Panama and Grenada. In the future, a batch will be made and sent to the newly developed island of Haiti.

These hollow steel drum wheels, combined with materials such as limestone, sand and cement slabs, will allow tropical colonies with more rain to have more reliable roads.

Of course, those main roads of great strategic significance still need to be laid with more durable cement roads. After all, if the cement slab road is used frequently in rainy days, it is easy to cause the cement slabs with some gaps to be loosened to be pressed away, affecting the use of the road.

Therefore, Marin intends to divide domestic roads into two levels-national roads and ordinary roads. Among them, the national highway is a very frequently used trunk road, which can only be laid entirely with cement to ensure the quality of the road. Ordinary roads, including the streets inside the city, can be replaced with cement roads. Anyway, if you do n’t take the chariot frequently on rainy days, the concrete slab road is not so easy to break.

...

In fact, as a traverser, Marin knew the importance of the road. Especially for colonization, the road is the core foundation of colonial rule. Only where the road can reach can it be truly controlled by the colonists. Otherwise, you can only choose local princes to cooperate as the British colonized India. Otherwise, local rule cannot be maintained.

Lao Mei, too, relied on the Pacific Railway, where a large number of Chinese workers participated in the construction, extended its tentacles to the Pacific coast. Prior to this, the transportation of the eastern and western coasts of Lao America required a large circle around the Magellan Strait, the southernmost point of South America, before reaching the western California coast ...

With the railroad, Lao Mei directly controlled the western region and quickly wiped out several western states that were captured from Mexico.

Although Beihai has also begun to develop steam engine trains, there is a big problem in getting trains-railroad tracks require a lot of steel. And the steel production of the North Sea country, if you want to engage in railways, the cost ... a little unimaginable ... and, the steel production also can't keep up with the need ...

Of course, if you can control the coal mines in the Appalachian Mountains and the iron-rich mines in the Great Lakes region, and build a steel center in a place close to coal mines in Pittsburgh, where iron ore transportation is convenient, you can get enough steel to make rails .

But first, you have to control the coal mines in the Appalachian Mountains and the iron-rich mines in the Great Lakes! Therefore, before building the railway, we must first build a avenue that leads to Pittsburgh and Michigan in the Great Lakes region, so that the Marin colonial army can reach and control it and along the road.

In the beginning, Marin planned to lay a cement road to the Pittsburgh area and Michigan's iron-rich mines. However, the construction of cement roads is difficult and the cycle is long. Building such a long cement road, God knows when it will be.

You know, the distance between New York and Pittsburgh is 600 kilometers, and Detroit is thousands of kilometers. If you build concrete roads at a glance, God knows how many years it will take.

The repair of cement slab road is different, as long as the hollow steel drum rollers and lime, sand and gravel ~ www.novelhall.com ~ and the cement slabs are delivered to the construction area, the road can be laid quickly. Moreover, it is quick to put into use.

Although the quality cannot keep up with the authentic cement road, it is barely enough. After all, my own cement board road, but using cement as a binder between cement boards, it is easy to stabilize the road surface.

At that time, as long as the horse-drawn carriage and the carriage with heavy carriage can be quickly transported to the destination through the cement board road, the local resistance force can be quickly resolved.

Moreover, the technical requirements for repairing cement slab roads are also low, and there is no need for professional engineering troops. Go directly to a group of bricklayers and train a group of young men with a little talent for wall-building. It doesn't need much technology, as long as you can lay the square cement slabs neatly on the roadbed, and then apply some cement on the gap to bond it, it's done. As long as it is fine weather, it can be put into use in almost a day or two.

As for laying the foundation, that is not difficult. That is, while rolling the pavement with a hollow steel drum roller filled with water, while laying limestone and sandstone layer by layer, then pour some water and compact it ...

As long as there is a foreman who knows how to do it, it does not require much skill. Just like the construction team of later generations, there are a few leaders who know how to do it, and the others are just big bosses who don't need to read.

Marin thought about it, and the absolutely powerful black man was quite suitable. After all, road building is a physical exercise. As long as you have the strength and the foreman for command and supervision, you can't go wrong. Although the black people are a bit lazy, the generation of black slaves are relatively honest and obedient, and have great strength, which is more suitable for road construction than Indian prisoners of war.

At that time, Marin planned to set up a tens of thousands of people-based road construction company, mainly strong and honest black people, to be responsible for the construction of colonial roads. Wherever the cement board road arrives, it is the place that Beihai can actually control ...