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The high-rise building is obviously made of concrete, so why does the whole building burn after a fire? foam agents

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Initially, concrete absorbs and moves heat more quickly than dissipates warm conveniently. When a fire takes place, it has the result of sustaining burning, which is equivalent to including gas to the fire. The even more it burns, the larger it obtains. Concrete may seem attractive and solid, but actually, maybe far better than adobe houses. There is no thermal insulation and warmth dissipation result like adobe bricks.

(burning concrete building)

On the various other hand, I simply scratched the surface. If the steel-concrete framework of a high-rise building is white, there will not be a great deal of smoke and fire if it melts. It is mostly made of interior decoration products, primarily organic materials, oil, or plastic materials., once fired up, the fire will end up being intense and generate a big amount of black smoke.

Second, fires in high-rise buildings can melt concrete and steel bars. Oxygen sustains combustion. Additionally, the temperature created by the auxiliary burning of other combustible items in the building is really high. After all, it is not a fire in a country home. In the 911 event, one building was ruined by an airplane. After the accident, it did not collapse at the time. Later on, the fire brought on by the impact burned and thawed the text of strengthened concrete and finally broke down.

(burning concrete building)

On the various other hand, indoor design products, home devices and furnishings are mainly combustible. If one flooring burns for a long time, the temperature level will certainly permeate the floor and stir up the top and lower floorings. The flooring is high and windy, with good air flow and high oxygen content. The high-temperature warm flow will certainly develop a smog. Power, the fire has to be very fierce.

Third, the foam plastic made use of for outside wall surface insulation is the wrongdoer. Foam plastics are typically used in Europe and the USA, so a group of experts introduced this technology. Yet they certainly ought to have taken into consideration that the majority of foreign structures are two- or three-story household buildings, and fire security needs are low. Once a fire breaks out in the structure, it will certainly trigger severe repercussions. 2- and three-story buildings are not mainstream in China, and also in rural areas, there are really few of them. To introduce modern technology, we should consider the current scenario of residential building. Or else, we will certainly be learning in Handan.

(burning concrete building)

Fourth, the emphasis is out area furniture and timber items yet on the reality that paint is utilized in all constructing decors, such as wall paint. Also premium wall treatments are fabrics. Repaint or textiles are inherently combustible items. In addition, lots of other design materials have different colors. The shades are additionally made from various sorts of paint. Once they come across high temperatures, they will certainly shed even if there is no open fire.

On the other hand, I have seen many individuals saying that the top quality of thermal insulation products is not up to par. Actually, it is not simply moisture-retaining products. The nation additionally has corresponding fire resistant requirements for timber used for interior design and furnishings of high-rise buildings, however furniture factories and building products manufacturing facilities will prevent this. Normal customers don't recognize the problem, so generally, the wooden materials on the market are non-fire resistant products, whether they are made use of in skyscrapers or otherwise.

(burning concrete building)

Fifth, ideas from firefighters to avoid problems before they happen: Each floor should be equipped with a fire hydrant. If the area is large, you can additionally outfit numerous. If a fire takes place, promptly manage the fire to stop the fire from infecting other floors. If it is a household structure, each family ought to be equipped with a small fire hydrant. When a fire occurs in your house, the fire can be swiftly regulated within your own home. Additionally, furnishings, drape design, etc, need to be constructed from non-combustible products. The degree of fire protection automation in skyscrapers is fairly high. The individual in charge of fire protection in skyscrapers remains in area and accountable, and examinations and drills remain in area. Fires can be protected against by regulating combustibles, combustion-supporting materials and fire resources.

The production process of concrete is a crucial aspect influencing its fire resistance. Among them, the control of the water-cement ratio is crucial. Too expensive or too low a water-cement ratio might have adverse effects on the fire resistance of concrete. On top of that, the quality and form of the stones in concrete will certainly additionally have an effect on its fire resistance. Utilizing tough and regular-shaped stones can improve the fire resistance of concrete.

Concerning the discovery of fire resistance, there are many generally used methods, such as high-temperature test method, flame examination method, thermogravimetric evaluation approach, and infrared spectroscopy technique. These approaches evaluate the fire resistance of concrete by simulating high-temperature atmospheres or directly observing the efficiency modifications of concrete at high temperatures.

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