The mixing ratio of cement and foaming agent, the raw material formula of cement foaming agent

Cement, water, cement foaming agent, bulk density.

230kg 140kg 1kg 300kg/m3

310kg 180kg 400kg/m3

450kg 300kg 600kg/m3

We strongly recommend that the majority of construction enterprises use about 60% of the water-cement ratio for foamed cement production, about 60% of the water-cement ratio is conducive to ensuring the strength of foamed cement and its thermal insulation performance. Although the amount of foaming agent has been increased, the density of foamed cement can be reduced, the amount of cement can be reduced, and the strength can meet the previous requirements. In this way, the overall cost is reduced.

At present, some machine and foaming agent manufacturers are emphasizing the small amount of foaming agent, which is actually misleading. Under the same premise, the amount of cement foaming agent has a direct relationship with the water-cement ratio, and the water-cement ratio is large, and the cement foaming agent is less. According to the current setting of some machines, the water-cement ratio is generally large, and even some machines can not make low-density foamed cement when the foaming capacity is adjusted to the maximum.

The water-cement ratio is very harmful.

The water-cement ratio is large, so that the foamed cement is loose, there are more cracks, the strength decreases, and due to the evaporation of water, a large number of capillary channels and together with the holes are formed, so that the foamed cement has a high water absorption rate and the thermal insulation performance decreases. To achieve the same strength, the density is larger, which also makes the amount of cement large, the cost increases, and the thermal insulation performance decreases.

If the water-cement ratio is large, the selectivity of the cement foaming agent will be lost, that is to say, the water-cement ratio is large, and any kind of foaming can be used, because when the water in the foamed cement is large, the foamed cement has low requirements for the foaming performance of the cement foaming agent, and the important measurement index of a good cement foaming agent is the foam stabilization performance (that is, the stability of the foam). In fact, the foaming multiple (foaming capacity) of many cement foaming agents is okay, but the foam stabilization performance is very poor. This makes the quality of foamed cement decrease, but the cost goes up.

The main reason for the increase in cost is the large amount of cement. The author has heard that some people have floor heating construction, and the density of foamed cement is as high as 500kg m2. In this way, although the cost of foaming agent is low, the amount of cement is much larger, and the quality has also decreased a lot.

At present, the high water-cement ratio is generally high in China, and the amount of foaming agent is about kilograms, resulting in the low construction quality of foamed cement, so many people have a bad impression of foamed cement. This is related to the fact that many customers only pay attention to the cost of cement blowing agent. The above foaming agent usage is only based on the composite foaming agent produced by our company as an example.

The mixing ratio of cement and foaming agent is not good, and the mixing ratio of different densities and cement foaming agent is definitely different. More authoritative information can be consulted by Beijing Zhongke Zhucheng.

It depends on what kind of blowing agent is used.

The raw material formula of cement foaming agent is water, bone glue, urea-formaldehyde resin, sodium dodecylbenzene sulfonate, and triethanolamine.

Cement blowing agent refers to an admixture that can reduce the surface tension of the liquid and produce a large amount of uniform and stable foam to produce foamed concrete. Foaming agent is a kind of substance that can produce a large amount of foam when the aqueous solution is introduced into the air by mechanical force, and this kind of substance is surfactant or surfactant.

The production method of cement foaming agent: first mix the appropriate bone glue and urea-formaldehyde resin with 10 times the water, and the temperature reaches 75 degrees, and then heat the melt for about half an hour to form glue. Then it is mixed with sodium dodecylbenzene sulfonate, triethanolamine, etc., heated at a temperature of 75 degrees for about 5 to 10 minutes, and finally diluted with water to make a product.

Definition of cement blowing agent

Cement blowing agents belong to a category of narrow blowing agents, not all narrow blowing agents. In the narrow sense of foaming agent, only a very small part can be used for foam concrete, which is determined by the characteristics and technical requirements of foam concrete.

In industrial production and daily civil use, the use of foaming agents is very different, and different application fields have different technical requirements for foaming agents. For example, the blowing agent for fire extinguishers only requires its instantaneous foaming capacity and the ability of the branch balance to block oxygen, but does not require its high stability and delicacy. Another example is the flotation foaming agent for mining, which only requires it to have strong adsorption and good foaming power to the target, and does not have high requirements for foaming multiple and foam stability.

Abstract:Cement foaming agent, also known as foamed concrete foaming agent, refers to an admixture that can reduce the surface tension of the liquid and produce a large amount of uniform and stable foam without excitation, and is used to produce foamed concrete. The cement foaming agent formula is generally concentrated in a large concentration, and it needs to be diluted into a foaming solution with a certain proportion of water when used, and then the foaming liquid is made into foam, and the specific proportion should refer to the manufacturer's suggestions and their own experimental results.

Cement foaming agent is an admixture for the production of foamed concrete, which has high surface activity, can effectively reduce the surface tension of the liquid, and surrounds the air by arranging the double electronic layer on the surface of the liquid film to form bubbles, and then composed of a single bubble foam, which is a commonly used foaming agent.

2. What is the ratio of cement foaming agent to cement?

When using cement foaming agent, the cement foaming agent is usually diluted according to the appropriate dilution factor before foaming, because the cement foaming agent is generally concentrated and directly added to the foaming machine for use, the foam output is low, and the foaming agent is wasted; Moreover, directly adding to the foaming machine will generally have a high concentration and cannot produce high-quality foam, and it is easy to block the inlet pump of the cement foaming machine, so it must be pre-diluted according to a reasonable dilution ratio, so what is the appropriate proportion of cement foaming agent?

Generally speaking, the dilution factor of cement foaming agent is related to many factors, including the amount of Pichatra used for foaming agent, the required foaming effect, water-cement ratio, etc., only when the dilution factor is appropriate, will get high foam yield and high stability. When determining, the main reference factor is the manufacturer's recommendation, and on this basis, a small-scale experiment can be carried out to try out the appropriate ratio on the foaming machine.

3. Formulation and preparation method of raw materials for cement foaming agent.

Raw material formula: 4 6 parts of rosin, 2 3 parts of sodium hydroxide, 1 5 parts of bone glue, triethanolamine, corn starch, 84 92 parts of water.

Preparation method: 1. Weigh an appropriate amount of water and add sodium hydroxide to it.

2. Add rosin when heating the above solution to 85 95, add an appropriate amount of water again after 1 2min, and keep it at a temperature of 55 65.

3. When heating the above solution to 85 95, add the soaked bone glue and stir constantly.

4. Stir for 5 7 min, then add corn starch and stir for 2 3 min.

5. Finally, triethanolamine is added, and the cement foaming agent is prepared after stirring evenly.

The proportion of foamed cement formula materials refers to the ratio of various raw materials used to make foamed cement. Specifically, the main factors to consider include blowing agents, cement, fine aggregates, and fine sand, among others. The following will introduce the relevant knowledge of the proportion of materials used in the formulation of foamed cement.

To make high-quality foamed cement, the choice of blowing agent is crucial. There are two commonly used foaming agents: organic matter and salt, the more common ones are sodium stearate and peptone. For sodium stearate, the dosage is generally between 1% and 1% of cement; The dosage of peptone is generally 1% to 2% of the amount of cement.

The choice of cement needs to be determined on a case-by-case basis, but it must be ensured that the cement is of good quality. For the selection of fine aggregates and fine sands, their particle size and specific surface area need to be considered. The smaller the particle size and the larger the specific surface area, the larger the contact area with the cement, and vice versa.

The amount of fine aggregate is usually 1% to 1% of the amount of cement; The difference between the amount of orange hail in fine sand is generally 2% of the amount of cement.

After determining the proportion of ingredients used in the formulation, we need to mix the raw materials. When mixing dry powder materials such as cement, fine aggregates and fine sand, it is necessary to wet mix first and then add a foaming agent for mixing. Finally, appropriate water is added and stirred until a homogeneous, fine slurry is formed.

The cement slurry is then poured into the foamer for foaming. It should be noted that the foaming device should be placed in a ventilated place during the foaming process to avoid the possibility of harm to the human body after the foaming agent volatilizes.

In general, the proportion of materials used in foamed cement formulations involves a number of factors, which need to be selected and adjusted according to the specific situation. We hope you find the above introduction helpful. <>

1. Dilute the foaming liquidBecause the concentration of cement foaming agent is generally relatively large, it is necessary to dilute the cement foaming solution with a certain proportion of water when using the cement foaming agent, and then wait for the foaming liquid to form foam by itself before it can be used. 2. Pour water and foaming agent into a water tank first, let the foaming agent be completely dissolved, and then continue to observe the situation of the foaming liquid, and after finding that there is a blister, you can pour the prepared cement into the water tank and stir it fully. Finally, it is sent to the wallboard machinery for processing into finished products through high-pressure conveying pipes or manual transportation.

Hello dear! The ratio of blowing agent to water depends on the specific application and needs, and is generally determined based on the required foam density and hardness. In general, the ratio of blowing agent to water is 1:

20 1:30, also hold the transport can be appropriately adjusted according to the situation than the quiet stove example. In addition, it should be noted that the foaming agent contains organic substances and should not be in direct contact with ** and the oral cavity, and appropriate protective measures should be taken.

At the same time, in the process of using the blowing agent, it is necessary to strictly abide by the safety operation procedures to avoid accidents. Finally, it should be pointed out that foaming agents have a wide range of applications in life, such as: clothing, shoes, sofas, automobiles, building materials and other fields.

There are also many types of blowing agents, such as: polyurethane, polyester, polystyrene, etc. Therefore, in the process of applying blowing agents, it is necessary to select suitable blowing agents according to specific needs and requirements.

Summary. Hello, dear, the ratio of foaming agent and water depends on the specific material used and the quality and use of the foam that needs to be made. In general, the amount of blowing agent used is about 2-5% of water.

If industrial-grade blowing agents are used, they usually require less as these blowing agents are typically more concentrated than regular blowing agents. The best practice is to check the manufacturer's recommended instructions for use of the blowing agent you are using and follow the instructions on the instructions to mix the blowing agent and water to ensure the best foaming results. In addition, some specific application scenarios, such as architecture, renovation or art projects, may also have different requirements, and you need to determine the proportions according to your specific needs.

The ratio of foaming agent and water depends on the specific material used and the quality and use of the foam that needs to be made. Generally speaking, the dosage of Zen foaming agent is about 2-5% of water. If an industrial-grade blowing agent is used, a smaller amount is usually required because these blowing agents are usually more concentrated than regular blowing agents.

The best practice is to check the manufacturer's recommended instructions for use of the blowing agent you are using and follow the instructions on the instructions to mix the blowing agent and water to ensure the best foaming results. In addition, some specific application scenarios, such as architecture, renovation or art projects, may also have different requirements, and you need to determine the proportions according to your specific needs.

The ratio of foaming agent to water is between 100:2 and 5.

Foamed concrete is a lightweight porous material, its density is generally below 400kg m3, with excellent thermal insulation, thermal insulation performance and good sound absorption and sound insulation performance. The material ratio of foamed concrete has an important impact on its performance and quality, and the following will introduce and explain the proportion of materials used in the formula of foamed concrete.

First of all, the main raw materials of foamed concrete are cement, fly ash, sand, water and foaming agent, etc. Among them, cement is the main cementitious material, and fly ash can replace part of cement, which plays a role in saving costs and reducing carbon dioxide emissions. Sand is a filler material that is used to reduce its density and increase its strength.

The blowing agent can form bubbles in the mixture, which plays a role in reducing the density of the mixture and improving the thermal insulation performance.

Secondly, the formulation ratio of foamed concrete varies according to different needs. For example, the ratio of cement, fly ash and sand in general foamed concrete is water-cement ratio, and the amount of foaming agent needs to be specifically controlled according to the required density and porosity. It should be noted that the preparation and mixing of materials should be carried out in accordance with a certain process flow to ensure the uniformity and stability of the mixture.

Finally, we also need to clarify the specific application scenarios and requirements of foamed concrete, and adjust the formula in a targeted manner. For example, when the requirements for thermal insulation and thermal insulation are high, the porosity can be increased and the density can be reduced by increasing the amount of blowing agent; In the case of high strength and durability requirements, the proportion of cement and sand can be increased to improve strength and stability.

In short, the proportion of materials used in the formula of foamed concrete is an important factor affecting its performance and quality, and it is necessary to carry out reasonable proportioning and control according to the specific situation. <>