Research direction of concrete foaming agent

There are many types of foaming agents used in foamed concrete, which can be summarized into four categories according to their development stages: rosin soap foaming agents, synthetic foaming agents, protein foaming agents, composite foaming agents, etc.

The foaming agent rosin soap is an earlier foaming agent, mainly using rosin soap and thermal polymer as one of the main materials. At first, it was mainly developed and applied as an air-entraining agent for concrete mortar, and later it was also used as a foaming agent for foamed concrete with expansion function. The production process is simple, the cost is low, the foam is large, the foam stability is poor, and it needs to be heated to dissolve in use, which is troublesome. However, the foam has good compatibility with cement and fly ash slurry, and can react with calcium and magnesium ions to form insoluble salts, thereby increasing the stability of the foam.

Surfactants have good surface activity and are good reagents for preparing foaming agents. As an amphiphilic substance, the physical and chemical properties of surfactants depend on their molecular structure. At the same concentration, the stronger the hydrophilic effect of the polar group, the higher the solubility of the surfactant in water, and the better the foaming performance. However, due to the large water content of the foam surface, the fast drainage speed and poor foam stability. In addition, because the performance of surfactants in concrete and their performance in aqueous solutions are often very different, the compatibility of surfactants with cement particles is an important factor in determining the performance of foam concrete.

The foaming principle of protein foaming agents is protein degradation. Breaking of peptide bonds in protein macromolecules produces small soluble protein molecules. With the increase of small protein molecules in the solution, the hydrophobic groups gradually increase, resulting in a decrease in surface tension and the formation of an interface. In addition, due to the formation of hydrogen bonds between special groups in the molecule, strong hydrogen bonding can ensure the formation of a high-strength foam liquid film in the solution, so that the foaming agent produces stable foam, and the complete natural state defoaming time is more than 24h. However, protein foaming agents are susceptible to denaturation due to external environments such as temperature and acidity, which is an important factor affecting the development of protein foaming agents.

In order to solve the limitation of one-component foaming agent, a composite foaming agent was researched and synthesized. Generally consists of two parts: foaming agent and stabilizer. Foaming agents usually choose surfactants with good foaming ability or stability; foam stabilizers are generally colloidal substances, which increase the viscosity of the foam, enhance the surface strength of the liquid film, delay the break time of the liquid film, and increase the stability of the foam . Compound methods are mainly complementary, synergistic, synergistic and functional.

Synthetic blowing agent overview

Synthetic foaming agent for concrete is a highly concentrated,highly efficient liquid,which is used in the production of lightweight foam concrete,Foam concrete is also known as cellular lightweight concrete (CLC).

CLC concrete has very good potential to help construct honeycomb lightweight applications.Using the correct type of foaming agent can make a huge difference in product properties (such as the mechanical properties of concrete and its resistance,etc.).Synthetic foaming agents are chemical substances that reduce the surface tension of liquids,and are commonly used in the manufacture of blocks, bricks,CLC concrete,etc.worldwide.Compared with other foaming agents,when high density is required,less energy is required for formation.It is strongly recommended for use in the construction sector where the demand for lightweight concrete is increasing over time.

Synthetic foaming agent for concrete advantages

1.Low cost / high concentration

Synthetic foaming agent for concrete has a low usage rate and it is this which must be considered when choosing a foaming agent,not just its basic price per litre.

2.Fine foam and good stability

It can be used in a wide range of temperature and water quality.This stability means that the foam bubbles sustain themselves and support the mortar around them.The bubbles do not burst easily and hence the foamed concrete does not collapse when it is made or after it has been placed.

3.The amount of bleeding is low.

4.Excellent strength and thermal insulation properties.

It means that the foamed concrete produced from Tongrun Foaming Agent is ideal for a wide range of applications.

5.Foaming Agent is essentially harmless and easily washes off.

Instructions of synthetic foaming agent for concrete 

Water and foaming agent are fed separately into the Foam Generator which mixes them in the correct ratio (see diagram below).The mixture of water and foaming agent is called the pre-foaming solution.Pre-foaming solution and compressed air are fed through a lance;

Foaming Agent can be used with all types of cement and incorporated into cement only,or sand-cement mortar slurries to produce foamed concrete of every type and for every application.Its cost as a proportion of the total cost of foamed concrete is tiny,typically only about 1-3%.

Synthetic blowing agent application

1.Foaming Agent  is used for making lightweight(clc) blocks and panels;

2.Foaming agent is used for void filling;

Foam Concrete is also very useful for void filling.As it is very fluid it will pour into even the most inaccessible places.It can be used for planned work,but also in emergencies to provide stability and support very quickly;

3.Foaming agent is used for Roofing Insulation;

4.Foaming agent is used for marking CLC blocks,Cast-in-place wall,bridge strengthening wall construction, floor construction, lightweight precast blocks,fire breaks,sound Insulation,etc.

Synthetic blowing agent price

The price of synthetic blowing agents will vary randomly with the production cost, transportation cost, international situation, exchange rate, and market supply and demand of synthetic blowing agents. Tanki New Materials Co.,Ltd. aims to help all industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for a synthetic blowing agent, please feel free to send an email to get the latest synthetic blowing agent prices.

Synthetic blowing agent suppliers

As a global synthetic blowing agent supplier,Tanki New Materials Co.,Ltd has extensive experience in the performance,application and cost-effective manufacturing of advanced and engineered materials.The company has successfully developed a series of powder materials (including water-based stearic acid emulsion,water-based calcium stearate,zinc stearate,etc.),high-purity targets,functional ceramics and structural devices,and provides OEM services.