Answers

  • 0
  • 0

Global concrete defoamer market trend 2022-2029 What is concrete defoamer by Newsmetropolis1927

Guotai Junan released a research report saying that under the background of carbon neutrality, the scarcity of coal mines is prominent, and the value of assets will continue to increase. The high point of capital expenditure in the coal industry appeared in 2012. Under the general direction of carbon neutrality, the overall investment in the industry has slowed down, and capital expenditure has gradually declined. From 2021 to now, the Energy Bureau of the National Development and Reform Commission has only newly approved 17.4 million tons of 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.

sales@cabr-concrete.com



With the outbreak of the Russia-Ukraine conflict, the market is increasingly worried about the potential disruption of Russia's energy supply. Geopolitical premiums have pushed up the price of crude oil and natural gas, and the energy price is expected to remain high in the short term. Affected by this, the market price of the concrete defoamer may continue to rise.

Inquery us

Our Latest Answers

Global water reducer,water reducing agent ,concrete admixtures market trend 2023-2026 The formula and production method of water reducer for concrete by Newsmetropolis1927

The application of various concrete admixtures can not only improve the performance of concrete, but also promote the development of new concrete technologies, promote the application of industrial by-products in cementitious material systems, and al…

Global silicon carbide powder market trend 2024-2030 What can Silicon Carbide Devices Bring to New Energy Vehicles? by Newsmetropolis1927

Aluminium buyers in the US physical metal market have held off on new orders amid fears of a recession triggered by rising inflation and supply chain crises. Spot aluminium trading on the market has been suspended in recent weeks, according to indus…

Global nano silica market trend 2022-2027 What is Nano Silica Used For? by Newsmetropolis1927

From April the French government will reduce fuel taxes slightly to ease the burden on consumers. Warned of possible energy shortages in France by the end of the year and called on the French to conserve electricity and gas from now on, saying that i…