a letter to the land

If you sincerely care for the motherland and the nation, I hope to read this information to the end

The territory of the Korean Peninsula itself is very small and divided into half, without a drop of oil, without abundant underground resources, and a country that cannot survive the winter without hard work. This is Korea.

Miracle in Korea? That can't be called a miracle.

Only the Korean history of blood and tears, mentioning Korea's No. 1 can think of the Sinchon Movement. At that time, South Korea could not produce even a drop of oil and cement. In order to solve this situation, the Korean government decided to use soil resources to change the country's situation after research at that time, and the patented technology of environmental protection soil has greatly helped the current and then Korean situation. Various aspects of building with earth have changed Korea...

The most basic infrastructure that a country can develop is the road, and the road is like the blood of a country. At that time, South Korea did a lot of research for the purpose of paving roads and building houses, but the environmentally friendly soil technology was rarely used in South Korea at that time. The reason is that the heavy chemical industry in South Korea developed rapidly at that time, and there was no shortage of resources such as asphalt and cement, so there was no need to use soil.

Today, society has to consider the negative effects of industrial development. With the development of economy, the contradiction between developed and developing countries is inevitable. Because the environmental situation involves more and more environmental protection issues, developed countries such as Europe and the United States have replaced the previously paved asphalt roads with environmentally friendly soil paving. Even so, many poor countries still cannot pave asphalt roads that others do not use. At this time, the patented technology of environmentally friendly soil paving is to use a small amount of cement to pave an ecological environment-friendly soil road with the same effect as an asphalt road.

Eco-friendly paving technology will be of great help to the development of various countries. In order to further understand environmental protection bricks and eco-friendly paving, let me tell you what soil is and what is a coagulant?

First of all, soil is the main body of nature composed of layers of minerals with different thicknesses. The difference between soil and parent material layer lies in morphology, physical properties, chemical properties and mineralogical properties. The soil layer differs from the parent material layer due to the interaction of the crust, water vapor, atmosphere and biosphere. It is a mixed component of minerals and organic matter that exists in solid, gaseous and liquid states. Loose soil particles combine to form the form of soil filled with gaps. These pores contain dissolved solution and air. Therefore, soils are often viewed as having multiple states. The difference between soil and sand is that soil has the property of absorbing water, so the desert has no plant soil but can grow plants, so there is a difference between soil and cement mixing and sand mixing.

Cement is made by grinding limestone and raw coal, iron powder, coal gangue and other materials into powder in a certain proportion with a mill, and then calcining at 1450 degrees high temperature to process into semi-finished cement clinker. Clinker, water slag, slag, gypsum, and cement grinding aid are then put into a mill in a certain proportion and ground into powder to become cement.

The greatest invention since human civilization is that cement is not an exaggeration. The sand will maintain a certain size after being separated in water, so it can be used in ready-mixed concrete. But the soil cannot be stirred because it is stuck with water, so the factory of ready-mixed concrete does not use soil.

The amount of water required for the basic cement reaction is 25% of the cement amount. The water operability needs to be further improved, using about 40% water. The excess water in the ready-mixed concrete will evaporate after it is hard, and it will be in the ready-mixed concrete. stick. So the ready-mixed concrete truck will stick to the prohibition to increase the amount.

It is soil that forms finer particles than sand, so adding a lot of moisture to the soil will cause more severe material separation than ready-mixed concrete. Therefore, soil paving is laid with a small amount of water and then compacted and cured. Like activated carbon, it will produce air permeability, so it is used as concrete. If soil can be used as concrete, it would be great to use loess to build a building! But know the reasons why you can't. The difference between the properties of soil paving and concrete is no longer explained.

Since loess packaging is mentioned, you should know the benefits of loess. All the minerals on the earth will generate far infrared rays when heated. In order to understand far infrared rays, let's first explain that sunlight can be roughly divided into visible light and invisible light. Visible light is refracted into purple, blue, cyan, green, yellow, orange, and red when it passes through a prism. The light outside the red light, the wavelength of the spectrum from 0.76 to 400 microns is called infrared light, also known as infrared. Infrared belongs to the category of electromagnetic waves, which is a kind of electromagnetic wave with strong heat effect. The wavelength range of infrared rays is very wide. People divide infrared rays with different wavelength ranges into near-infrared, mid-infrared and far-infrared regions. The electromagnetic waves with corresponding wavelengths are called near-infrared, mid-infrared and far-infrared. Infrared is a light wave that has a shorter wavelength than radio waves and longer than visible light. Infrared rays are invisible to the naked eye, and all objects emit infrared rays. The infrared radiation of hot objects is stronger than that of cold objects.

There are x-rays and the like in the invisible ultraviolet rays that are separated from the purple, but because these wavelengths are short, they have the property of penetrating the skin. Because ultraviolet rays only penetrate the surface of the skin, they damage the skin tissue and induce skin cancer. Through the X-ray of the human body, it is possible to take pictures by taking advantage of this. What happens when taking X-rays in a hospital for a long time? May cause damage in the cells and tissues that form the body! ! So in the hospital x-ray shooting, instant shooting! Here UV rays are harmful because the wavelengths are short and light can penetrate.

Then in the visible light, the light that is separated from the red is: the red light. Because of the wavelength, the red rays do not penetrate the skin and have the property of causing irritation. Sun exposure makes you warm because of the red rays, and the skin blisters because of UV rays.

Among the various minerals (maifanite, germanium, illite, loess) that radiate far-red rays, loess can become a very important resource. In addition to the loess packaging, it can be judged that the field utilizing these functions plays an important role in the production of secondary products. Loess can be an important resource! In that case, if you heat it in medical stone, germanium, illite, or loess, the divergence will be the far-red outer line. , it will form a resonance phenomenon, resulting in strong vibration. Regarding the frictional heat of vibration energy, which activates cells and tissues, why is it written as loess sauna, medical stone sauna, and sauna, and what are the benefits? You'll understand that it's not just because you're comfortable in a hot sauna and sweating.