Foam concrete is a kind of concrete with lightweight and has ideal strength. Because of the hollow structure in foam concrete, it has the function of absorbing heat and isolating sound.
The density of foamed concrete is 300-1200 kg/m3, and the thermal conductivity is between 0.08-0.3W/ (m ·K).
Foam concrete is widely used in CLC blocks, lightweight partition panels, roof insulation, floor cushion construction, floor heating backfilling, and other occasions.
At the same time, foam concrete is also a good sound absorption material, which can be used in highway sound insulation boards, sound absorption boards, and other fields.
Generally speaking, foam concrete is a kind of building material with multi-function, environmental protection, and economy, which has a wide application prospect.
The basic concept and purpose of foaming agents
Cement foaming agent is a type of surfactant that contains components such as foam stabilizers, hydrophobic agents, and thickeners. When it mixes with water, these components will interact and produce a large number of bubbles. These bubbles are stabilized by hydrophobic agent, avoiding bubble merging and cracking, and foam also makes cement concrete softer and more porous. At the same time, these bubbles can also improve the permeability, mechanical properties, insulation, sound insulation, and impermeability of concrete.
Firstly, to understand the mechanism of action of cement foaming agents, we need to know their main components and foaming principles. Most cement foaming agents are composed of resins, surfactants, foam stabilizers, etc. When these components are mixed with water, they will produce a large number of bubbles. These bubbles are stabilized by surfactants, thereby avoiding bubble coalescence and rupture.
Secondly, the role of cement foaming agent in foam concrete is mainly reflected in the following aspects: first, improve the pore structure and pore distribution of concrete, improve the permeability and mechanical properties of concrete; The second is to generate bubbles, improving the insulation, sound insulation, impermeability and other properties of concrete; The third is to reduce the density of concrete, thereby reducing the quality and cost of concrete; The fourth is to improve the pumpability and plasticity of concrete, making it easier to construct.
The factors that influence the principle of cement foaming agents
Chemical composition
The chemical composition of cement foaming agent directly affects its foaming effect. The combination and proportion of different ingredients can affect the size, stability, and quantity of bubbles.
Mixing speed and time
Mixing speed and time are also factors that affect the foaming effect of cement foaming agents. If the stirring speed is too fast or the time is too long, it may cause bubble rupture or uneven mixing.
Temperature and humidity
Temperature and humidity can also affect the foaming effect of cement foaming agents. In environments with high temperatures or low humidity, the bubbles generated by foaming agents may be more stable.
Water cement ratio
Water cement ratio refers to the ratio of water to cement and is also an important factor affecting the foaming effect of cement foaming agents. The higher the water cement ratio,i.e., the larger the water ratio, the more bubbles will be generated, but the stability of the bubbles will decrease.
Cement type
Different types of cement have different compatibility with cement foaming agents, which can also affect the final foaming effect.
Therefore, in order to obtain the best foaming effect, it is necessary to select appropriate foaming agent formula and raw materials, and strictly control the mixing, temperature, humidity, water cement ratio and other parameters to ensure the quality of the final foam concrete.
From the above description, we could understand that the influence of cement foaming agent on the quality of foamed concrete is extremely critical. A good cement foaming agent can make high-quality foamed concrete. Take Trunnano TR-C polymer foaming agent as an example. The foam produced by the foaming agent has good stability, can be constructed in a low temperature environment, and the one-time pouring height is more than twice that of similar cement foaming agents. Let's talk about how each performance index of cement foaming agent affects the quality of foam concrete.
The more uniform the foam, the better; the bubble diameter should be the same size
The ideal pore size distribution is as narrow as possible, that is, the pore diameters are required to be as consistent as possible, and the difference should not be too large. This corresponds to the requirement that the foam should be uniform and not of different sizes. The bubble diameter of the foam cannot be exactly the same, but it should be basically similar. The bubble diameter range is as small as possible, and the difference between the maximum bubble diameter and the minimum bubble diameter should not be too large. As mentioned earlier, the pores formed by the foam are required to be uniform, which can avoid the concentration of compressive stress at the large cells and reduce the compressive strength. If the size of the foam is uneven, the stress is concentrated in the big bubble, which is very easy to cause it to become a weak link, which is the first to crack when under pressure.
The higher the foam stability, the better; the longer the stabilization time, the better
The foam with good stability has tough liquid film and good mechanical strength, and it is not easy to burst or excessively deform under the squeeze of the slurry. In addition, it has self-retaining water, and the water on the liquid film is not easy to lose under the action of gravity and surface tension. It can maintain the thickness and integrity of the foam liquid film for a long time. So that the foam can be stored for a long time without breaking. Foam stability can be measured by stabilization time when there is no standard testing instrument to determine its sinking distance. The foam stabilization time should meet the needs of the initial setting of the gelling material used. Because the slurry can fix the foam after the initial setting, retain the shape of the foam, and turn it into pores.
TRUNNANO is a supplier of concrete foam agents with over 12 years experience in nano-building energy conservation and nanotechnology development. It accepts 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).
Cement foaming machine is an important equipment for preparing building materials, which is widely used in fields such as construction, insulation, and waterproofing. Its emergence has brought many conveniences to fields such as architecture, insulation, and waterproofing.
Cement foaming machine is a kind of mechanical equipment used to prepare foaming cement. It can mix foaming agents, cement and other raw materials and prepare the mixed liquid into foam through the special mechanism of the foaming machine. These foam-like materials can be used for thermal insulation and sound insulation of buildings, and can also be used in waterproof engineering.
So, where did the cement foaming machine come from? The origin of cement foaming machines can be traced back to the early 20th century. At that time, some scientists and engineers began to study how to use cement and foam agents to prepare a new type of building materials. They found that adding foaming agents to cement can produce a lightweight, insulated, and soundproof building material. This material not only has excellent physical properties but also has good environmental performance, so it has been widely used.
On this basis, cement foaming machines were gradually developed. The initial cement foaming machine was relatively simple and could only produce relatively single foaming cement. However, with the continuous development of technology, the performance of cement foaming machines has also been continuously improved, allowing for the preparation of more complex and refined foaming cement. At the same time, with the continuous improvement of material performance requirements in the construction and engineering fields, the application range of cement foaming machines is also becoming more and more widespread.
The working principle of the cement foaming machine is not difficult, but it requires a certain amount of technical knowledge and experience to be used correctly. Firstly, the foaming agent and water are mixed in a certain proportion and then fed into the foaming machine together with raw materials such as cement. Inside the foaming machine, these raw materials are thoroughly stirred and mixed before entering the foaming machine. A foaming machine is a closed container with a certain amount of air inside. When the mixed liquid enters the foaming device, the air is rapidly compressed to form foam. These foams are transported to buildings that need insulation or waterproofing.
The correct use of cement foaming machine requires attention to the following points. Firstly, it is necessary to ensure the cleanliness and maintenance of the equipment. Before each use, the equipment needs to be thoroughly cleaned, especially the mixer and pipeline, to avoid the influence of blockage or residue on the prepared foam cement. Secondly, for different engineering projects, it is necessary to adjust the material ratio and proportion to achieve the best performance and effect. In addition, operators need to possess certain technical knowledge and experience to understand the performance and usage methods of various raw materials.
The process flow of cement foaming machine includes steps such as batching, mixing, foaming, and ripening. Ingredient refers to the preparation of various raw materials in a certain proportion. Mixing refers to the full mixing and mixing of these raw materials. Foaming refers to the sending of the mixture into the foaming device to form foam. Curing refers to the natural drying and solidification of the foam-like mixture.
The application effects of cement foaming machines vary greatly in various industries. In the field of building insulation, foamed cement prepared by cement foaming mechanism has good insulation and sound insulation effects, which can improve the comfort and energy-saving effect of buildings. In the field of waterproofing engineering, foamed cement prepared by cement foaming mechanism has good waterproofing performance and durability, which can effectively protect buildings from moisture damage.
The performance and function of cement foaming machines have a crucial impact on the quality and efficiency of the final product. When evaluating the performance of cement foaming machines, analysis can be conducted from different perspectives. Firstly, production capacity is one of the important indicators for evaluating the performance of cement foaming machines, including the volume of foaming cement that can be prepared per unit time, the stability and controllability of foaming, etc. Secondly, bubble stability is also a key factor in evaluating the performance of cement foaming machines, which directly affects the quality and performance of the final product. In addition, mechanical reliability is also one of the important factors in evaluating the performance of cement foaming machines, including equipment reliability, stability, and durability.
Many factors affect the performance of cement foaming machines, among which equipment parameters, process parameters, and environmental temperature are the main factors. The parameters of the equipment itself include the design, structure, materials, and dimensions of the equipment, which can directly affect the performance and production capacity of the cement foaming machine. The process parameters include the type and concentration of foaming agent, cement type and concentration, mixing speed and mixing time, etc. These parameters can affect the stability and quality of the final product's bubbles. Environmental temperature is also one of the important factors affecting the performance of cement foaming machines, which can directly affect the curing speed of products and the quality of the final product.
Based on the performance evaluation and analysis of influencing factors above, the following optimization strategies for cement foaming machines can be proposed. Firstly, when selecting equipment, factors such as equipment design, structure, and materials should be considered, and equipment with high reliability and good stability should be selected. Secondly, the quality and efficiency of products can be improved by improving process parameters, such as adjusting the type and concentration of foaming agents, cement type and concentration, mixing speed, and mixing time. In addition, the method of increasing the operating temperature can be adopted to accelerate the curing speed of the product, thereby improving production efficiency.
TRUNNANO is a supplier of cement foaming machine and foam agent with over 12 years experience in nano-building energy conservation and nanotechnology development. It accepts 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).
Cement foaming agent, also known as foam concrete foaming agent, is an additive that can reduce the surface tension of liquid, produce a large number of uniform and stable foam, and produce foam concrete. Foaming agent is a type of substance that will produce a lot of foam when its aqueous solution is introduced into the air by mechanical force. This substance is a surfactant or surfactant. The essence of foaming agents is their surface activity. Without surface activity, foaming cannot occur and cannot become a foaming agent. Surface activity is the core of foaming.
What is the reason we need concrete foaming agents?
Cement foaming agent plays a crucial role as an important building material in the manufacturing process of concrete. Due to the characteristics of cement foaming agents, it is helpful to produce foam concrete with superior performance, energy conservation and environmental protection.
Firstly, cement foaming agents can significantly improve the insulation performance of concrete. By introducing bubbles into the concrete, cement foaming agents make the concrete more lightweight while reducing heat conduction and achieving good insulation effects. This means that using cement foaming agents can effectively reduce the energy consumption of buildings and achieve energy conservation and emission reduction.
Secondly, cement foaming agents can also improve the sound insulation effect of concrete. The presence of bubbles reduces the propagation of sound waves, making concrete have good sound insulation performance. This has important application value for environments that require noise reduction, such as schools, hospitals, etc.
In addition, cement foaming agents can also improve the durability of concrete. Due to the stable existence of bubbles, the humidity inside the concrete decreases, reducing the possibility of chemical and microbial corrosion, thereby extending the service life of the concrete.
In general, cement foaming agent plays an important role in the manufacture of foam concrete. It improves the performance of concrete by introducing bubbles, achieving improvements in energy conservation, noise reduction, and durability. Therefore, in the field of construction, the use of cement foaming agents is very necessary.
The main component is a polymer organic compound, also known as a surfactant. Its main function is to trigger the reaction between cement and another chemical substance (usually water) to produce bubbles, making concrete or mortar materials lightweight and with good insulation performance. There are many types, such as protein type, polyurethane type, phospholipid type, silicone oil type, etc.
Catalyst
A chemical substance that promotes reaction. Its role is to shorten the setting time of gel and improve the strength and thermal stability of concrete. Common catalysts include zinc oxide, manganese salts, copper salts, etc.
Stabilizer
An auxiliary component is used to prevent adverse phenomena such as delamination, collapse, and deactivation of the foaming agent, ensuring the stability and uniform distribution of bubbles in concrete. Commonly used stabilizers include compounds of phospholipid type, silicone oil type, alkyd type, and other types.
For the components of large cement foaming agents, other chemical substances and raw materials such as water, bone glue, urea formaldehyde resin, etc., may also be added according to specific formulas and performance requirements. The specific formula and ingredient ratio are usually adjusted according to actual application scenarios and specific requirements.
What is the best way to select equipment?
By selecting the appropriate type of cement foaming agent and using the appropriate equipment, it is possible to create high-quality cement products with improved performance characteristics that meet specific project requirements.
The light soil/foam concrete produced by the well-known cement foaming machine has light weight, good thermal insulation performance, sound insulation and fire resistance performance, low elasticity and shock absorption, strong waterproof performance, good durability, and environmental protection. Good environmental protection, convenient construction and other characteristics. It is extremely important for projects such as roof insulation, foamed concrete filling and backfilling, road and bridge subgrade construction, and floor heating construction.
Components of cement foaming machine with a displacement of about 40-50m3/h
1. Model 50 extrusion cement foaming machine
Its components are composed of pumping system, foaming system, mixing system, feeding system, frame, and electrical control cabinet. The extrusion system is used. The pressure is greater, and of course the pumping distance is farther. However, this model needs to be used in combination with a screw feeder and is suitable for heat insulation, filling, warmth, slope finding, and other projects in high-rise building districts.
2. Model 50 hydraulic cement foaming machine
This model adopts a hydraulic system container design. The components are composed of foaming cavity, extrusion pump, mixer, control cabinet, screw air compressor, 75 single-hose pump, etc. It is suitable for highway roads, bridges, etc. Large-scale foam concrete backfilling projects such as backfilling of bridge abutments, refilling and heightening above tunnels, filling of large coal mines, and backfilling of soft foundations for road widening.
Components of cement foaming machine with a displacement of about 70-100m3/h
This range is generally 80 models. This type of machine can meet large-scale projects such as pavement filling and abutment backfilling with stringent requirements for the quality of air bubble mixed lightweight soil (foamed concrete). It is composed of 75 double hose pumps, power sensors, three cameras, air compressors, mixing barrels, electrical control cabinets, mixers, extrusion pumps, one-way valves, screw feeders, etc.
Supplier
TRUNNANO is a concrete foaming agent supplier with over 12 years experience in nano-building energy conservation and nanotechnology development. It accepts 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 and send an inquiry. (sales@cabr-concrete.com).
Foaming cement technology is a lightweight, environmentally friendly, and high-performance building material with a certain historical background in its origin and development.
The origin of foam cement technology can be traced back to the 1930s when foreign countries began researching the production and application of foam cement. The invention and application of this technology have been widely applied in fields such as architecture, insulation, waterproofing, etc.
In China, the technology of foaming cement started relatively late. In the 1960s, China began to gradually master the production technology of foaming cement which was widely used in fields such as construction, light industry, and chemical industry. With the continuous development of construction technology and material science, the application and development of foam cement technology in China have also made significant progress.
At present, China's foam cement technology is quite mature, mainly applied in fields such as lightweight wall panels, insulation materials, waterproof materials, floors, and sound insulation materials. foaming cement has advantages such as lightweight, thermal insulation, waterproofing, fire prevention, and sound insulation, and has become one of the important materials in the construction field. At the same time, the technology of foam cement will continue to improve, such as increasing strength and improving weather resistance, to adapt to different construction needs.
In the future, foaming cement technology will be more widely used. foaming cement will play a greater role in fields such as intelligent buildings, green buildings, and new building materials. At the same time, the technology of foam cement will continue to improve, such as increasing strength and improving weather resistance, to adapt to different construction needs.
Since the advent of foaming cement technology, it has indeed added a lot of brilliance to the construction industry of various countries. Due to its various characteristics, it has been applied to all aspects of the construction industry in recent years. So, what are its characteristics?
1. The product does not use fire bricks. Fire brick is a high energy consumption and high emission industry. The emergence of this product has saved a lot of coal resources and opened up shale mines, which have played a considerable role in protecting the environment.
2. This product only needs a small amount of sand when making the template, which accounts for less than one-tenth of the overall amount. Reducing the harm of sand mining to the riverbed is also the direction of the national environmental protection policy.
3. This product has a thermal insulation function, making the room not only cool in summer but also warm in winter, reducing the power consumption of air conditioning and heating.
4. Due to its lightweight, this product is less than one-fifth of the weight of a traditional wall of the same volume, which can reduce the weight of the building greatly. On the contrary, it greatly improves the earthquake resistance of buildings of the same level and has an outstanding effect on protecting people's lives.
5. This product is a finished product of fine-pored cement, which is light in weight and tough. It has the convenient effect of using expansion bolts for wall pendants that hollow fire bricks cannot achieve.
6. The I-shaped connection technology developed by this product is decorated with integrated ceramic tiles and stones, which are integrated with the wall, and there is no risk of falling off at high altitudes. Compared with the current dry-hanging technology, it greatly saves labor and steel consumption. It also plays a positive role in national energy conservation and emission reduction.
Foaming cement has a wide range of applications in construction and engineering. Firstly, foaming cement is an ideal insulation material. Its lightweight, high porosity, and excellent insulation performance have made it widely used in the field of building insulation, such as external wall insulation and roof insulation. In addition, foaming cement also has excellent sound insulation effects, and its porous structure can absorb and disperse noise, making it widely used in soundproof rooms and underground parking lots.
In waterproofing engineering, foaming cement is also a good material. Its high density and impermeability enable it to effectively prevent water infiltration, making it suitable for roof waterproofing, basement waterproofing, and other fields. In addition, foaming cement is widely used in fields such as floor insulation and lightweight wall panels.
In short, foaming cement has broad application prospects in fields such as construction, insulation, waterproofing, etc. Due to its lightweight, environmental-friendly and high-performance properties. At the same time, with the continuous development of science and technology and the continuous improvement of people's environmental awareness, the application field of foaming cement will also continue to expand.
TRUNNANO is a supplier of concrete foam agent with over 12 years experience in nano-building energy conservation and nanotechnology development. It accepts 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).
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