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Air Entraining Agent in Concrete
  • Air Entraining Agent in Concrete

Air Entraining Agent in Concrete

Appearance:Colorless or Yellowish Liquid



Viscosity(20℃, Sp2,100rpm):300-1500

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Overview of Aerogel particles/powders

Air-entraining agent refers to introducing a large number of evenly distributed tiny air bubbles in the concrete mixing process to reduce the bleeding and segregation of the concrete mixture, improve workability, and significantly improve the frost resistance and durability of hardened concrete admixtures.

Most of the air-entraining agents are anionic surfactants. On the water-air interface, the hydrophobic group is directionally adsorbed toward the air side. The hydrated particles form a hydrophobic adsorption layer and try to be close to the air surface so that a large number of fine air bubbles are generated during the mixing process of the concrete. These air bubbles have directional adsorption layers with the same charge, so they repel each other and can be distributed evenly.

On the other hand, many anionic air-entraining agents have calcium salt precipitation in the cement solution with high calcium content, and they are adsorbed on the bubble film, which can effectively prevent the bubbles from bursting.Data of Aerogel particles/powder

Technical Parameters of Air Entraining Agent

ItemsMain componentAppearanceDensity(g/cm3)pH(1% water solution)Refractive index(20℃)Viscosity(20℃,Sp2,100rpm)    
StandardAlkyl ether anionic surfactantColorless or Yellowish Liquid1.03±0.026.0-8.01.21~1.48300-1500 

Product Characteristics of Air Entraining Agent

1. It has the remarkable characteristics of fine, uniform, and lasting air bubbles.

2. It can improve the workability and pumpability of concrete.

3. Inhibits segregation and water secretion.

4. Improves freeze-thaw resistance and durability.

5. Reduce the slump loss.

6. It is suitable for formulating concrete for hydraulic, marine, port, culvert, tunnel, bridge, road, and other projects.

7. It is suitable for various mortars.

The Use of Air-entraining Agents in Concrete

1. Improve the workability of concrete mixtures.

2. Significantly improve the impermeability and frost resistance of concrete.

3. Reduce concrete strength. Generally, when the air content of concrete increases by 1%, its compressive strength will decrease by 4% to 6%, and its flexural strength will decrease by 2% to 3%.

Precautions of air entraining agent

1. This product is non-toxic, harmless, and biodegradable but not edible.

2. If it gets into the eyes, it should be rinsed with plenty of water in time.

3. If you cause allergies to part of the human body, you should consult a doctor in time.

why choose us 

Why choose us

Company Profile

TRUNNANO is the global leader in Low-Density Cellular Concrete (LDCC), Celluar Light Concrete (CLC), and advanced engineered foam solutions. Known globally for its commitment to research, innovation, and applied expertise, we have been providing engineered foam solutions since the early 2012's.

We can supply high-quality concrete additives such as Potassium Silicate, Gypsum retarder and enhancer, Polyvinyl Alcohol Fiber, Concrete Crack Reducing Admixture, Hollow Glass Microspheres, Concrete strength and shrinkage reducer, Waterproof agent, Redispersible Polymer Powder (RDP) all over the world.

The company has a professional technical department and quality supervision department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.Send us an email or click on the needed products to send an inquiry.



What effect does concrete air-entraining agent have on concrete strength?


Proper use of concrete air-entraining agents will not negatively affect the strength of concrete. The introduced air bubbles also improve the uniformity of the concrete and increase its strength.


What is the application scope of concrete air-entraining agent?


Concrete air-entraining agents are suitable for concrete projects in cold areas and humid environments, as well as other projects that need to improve the durability of concrete.


How to use concrete air entraining agent?


When using concrete air-entraining agent, you need to add the air-entraining agent to cement or mortar according to the product instructions, and mix thoroughly. At the same time, attention needs to be paid to controlling the number and distribution of bubbles to obtain optimal working performance and durability.


What are high-quality air-entraining agents and inferior air-entraining agents?


High-quality air-entraining agents can introduce a large number of evenly distributed bubbles with smaller bubble sizes and have high bubble stability and compatibility. Inferior air-entraining agents may introduce fewer or larger bubbles, have poor bubble stability, or be incompatible with other materials.


How to choose a suitable concrete air-entraining agent?


Choosing a suitable concrete air-entraining agent requires consideration of factors such as engineering requirements, climatic conditions, and raw material performance. At the same time, you need to choose regular brands and channels to purchase, and understand the product's performance parameters and usage methods to ensure its effectiveness.


How to store and transport concrete air-entraining agent?


When storing and transporting concrete air-entraining agents, attention should be paid to measures such as moisture-proof, sun-proof, and dust-proof. They should be stored in a dry, cool, and well-ventilated place, away from direct sunlight and high temperatures. Collision and extrusion should be avoided during transportation to prevent packaging damage and product deterioration. At the same time, storage and transportation need to be carried out in accordance with the regulations of dangerous goods.

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  • Luoyang Tongrun Info Technology Co., Ltd. ( is the world's leading nanomaterial technology developer and application manufacturer, the company has more than 20 years of industry experience, after years of scientific research and production, has been professionals in lightweight concrete and foam concrete solutions. We can supply concrete foaming agents, superplasticizers, aerogels and foam concrete strength enhancers for lightweight concrete mix, CLC blocks all over the world, suitable for ordinary cement foamed concrete cast-in-place, block, plate, insulation wall, etc.