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Waterborne defoamer for concrete

Recently, the Bulgarian Gas Company said that Bulgaria is negotiating with Gazprom on resuming natural gas supply, and there is a possibility that Russia will resume natural gas supply to Bulgaria.

Since the outbreak of the conflict between Russia and Ukraine, the European Union has imposed several rounds of sanctions on Russia. Russian President signed a presidential decree on March 31, requiring "unfriendly" countries and regions to pay for Russian natural gas in rubles, otherwise gas supplies will be suspended. Bulgaria has been out of breath since the end of April for refusing to comply with the rouble settlement order. Affected by natural gas supply shortages and soaring energy costs, Bulgarian natural gas companies have applied to the Bulgarian government to raise Bulgarian natural gas prices by 60% in August, RIA Novosti reported.


On August 3, local time, the US Senate passed a resolution by a vote of 95 to 1, agreeing to the application of Finland and Sweden to join NATO.

NATO signed a protocol on the accession of Finland and Sweden to NATO on July 5. In accordance with the procedures, NATO members will examine and approve the protocol in accordance with their own procedures. The US House of Representatives passed a resolution supporting Finland and Sweden to join NATO on July 18. After it is passed by the Senate, the Biden administration will submit approval documents to NATO.


Because of the turbulent international situation, the supply and prices of many international bulk pce powder are still very uncertain.

Polycarboxylate superplasticizer is often used in concrete, which can reduce the water consumption of concrete while maintaining the same fluidity, thus improving the strength and durability of concrete. It has the function of lubrication, wetting, water reduction and plasticization. it is widely used in roads, bridges, tunnels, dams and other construction projects.

A large number of foams will be found in the process of using polycarboxylic acid superplasticizer, and water-based defoamer can be used to solve the problem.

 

When selecting polycarboxylate superplasticizer, it is necessary to choose products with good compatibility with all kinds of cement, so that the slump of concrete can be maintained well, the construction time of concrete can be prolonged, and the chloride ion content and alkali content in superplasticizer should be low. this is conducive to the durability of concrete. Polycarboxylic acid superplasticizer has the advantages of low content, high water reduction rate and shrinkage, which can greatly improve the early and later strength of concrete.

 

In the process of using polycarboxylate superplasticizer, because the stirring operation of the equipment will bring a large amount of air into it, foam will be formed, and these bubbles are mainly large bubbles; polycarboxylate superplasticizer will retain some surface active components that reduce the surface tension in the production process, which has a certain air entraining and foaming characteristics, which will lead to foam production.

 

These foams need to be eliminated in time. When the foam content in superplasticizer is too high, it will have a certain impact on the structure of concrete, and the existence of air bubbles will reduce the compactness of concrete and affect the strength of concrete structure. Too much foam will also affect the performance and quality of polycarboxylate superplasticizer, resulting in excessive bacteria, mildew, deterioration and odor in superplasticizer. The production of foam will affect the production progress and efficiency of polycarboxylic acid superplasticizer and lead to the increase of production cost.

 

The water-based defoamer has the ability of rapid defoaming and long-term foam suppression, and can quickly penetrate into the interior of the foam to realize foam breaking and defoaming; and has good chemical stability, and will not affect the performance and quality of polycarboxylic acid superplasticizer after use; it will not change its basic system; it has good water solubility and fast dispersion, can dissolve and uniformly disperse with the superplasticizer, and does not bleach oil or precipitate.

 

Concrete Additives Supplier

TRUNNANO is a reliable concrete additives manufacturer with over 12-year experience in nano-building energy conservation and nanotechnology development.

If you are looking for high-quality concrete additives, please feel free to contact us and send an inquiry. (sales@cabr-concrete.com)

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.


The impact of the Russia-Ukraine conflict on the supply and prices of commodities is widening, and commodity prices remain at high levels. There is still great uncertainty about the future price of the pce powder.



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