The spread of the novel coronavirus is taking a direct hit on the operations of airlines in Asia. About 500,000 flights taking off and landing in mainland China have been canceled since January, according to aviation information company Cerium. Tourists and business trips have plummeted. On the booking website, there are a large number of air tickets for local routes with a price reduction of nearly 90% compared with the original price and only tens of yuan for a one-way trip.
In February, China's aviation industry recorded its largest single-month loss of 24.59 billion yuan, of which airlines lost 20.96 billion yuan.
Data from the Civil Aviation Administration of China showed that in February, the number of passengers traveling by air fell 84.5% year-on-year to 8.34 million.
The stagnation of the Asian aviation industry has brought volatility to concrete defoamer.

What is a concrete defoamer

Concrete is a stone mixed with water, sand, stones and some chemical additives, if necessary, in a particular proportion. Foaming occurs when concrete is made due to agitation. The appearance of a large amount of foam will lead to a decrease in the strength of the concrete and bring about quality problems.

So, how does foam in concrete form?

1. Concrete is vibrated during the pouring process, and local liquefaction has water analysis and gas floating, and it accumulates in the gathering area to form foam;

2. When mixing concrete, to increase the strength of concrete, a certain amount of chemical additives are often added. Most of these additives contain surfactants, which are easy to generate foam;

3. Air is mixed in during the vibration and stirring process of the equipment to form foam;

4. The steel formwork is too tightly closed, and there is no vent hole. When the concrete is cut, a kind of air pocket is generated, and then air bubbles are formed.

If the foam problem is not solved in time, what harm will concrete foam cause?

1. The generation of a large number of air bubbles causes too many pores on the surface of the concrete, and the phenomenon of a pockmarked surface appears, which affects the surface appearance of the concrete;

2. The production of foam will affect the mechanical strength and construction efficiency, reduce the life of the building, and cause relatively large quality problems;

3. Decrease the corrosion resistance of the concrete structure. Due to a large number of air bubbles on the concrete surface, the adequate thickness of the steel protective layer is reduced, and the carbonization process of the concrete surface is accelerated;

4. Due to the large air bubbles, the cross-sectional volume of the concrete is reduced, resulting in the uncompacted interior of the concrete, thereby reducing the strength of the concrete.

How does the concrete defoamer solve the problem of concrete foaming?

Its mechanism of action is mainly divided into three forms: foam breaking, foam suppression and defoaming. When added to concrete according to the method of use, the chemical components contained in it will reduce the surface tension of water and achieve rapid foam breaking; and it has good compatibility, no oil drift, no precipitation, and no impact on the strength of concrete; at the same time, the applicability is also It is pervasive, and it can quickly break foam and suppress foam for a long time in the environment of strong acid, strong alkali and high temperature.

TRUNNANO is a concrete additives supplier with over 12 years experience in nano-building energy conservation and nanotechnology development. We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.

If you are looking for high quality concrete additives, please feel free to contact us and send an inquiry.

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Product name are used in various high-tech fields, so the market demand for concrete defoamer will continue to rise. We are a quality supplier of concrete defoamer, please feel free to contact us.

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