How to adjust the size of the bubble hole of the foamed cement insulation board

By controlling the amount of hydrogen peroxide, the gas temperature, etc., as well as the amount of admixture.

The foamed cement insulation board has strong adhesion. Foam concrete insulation board is a cement-based material, which has good compatibility and affinity with the main wall of the building, firm bonding, not easy to fall off, and the insulation system has air permeability, good wind pressure resistance and earthquake resistance.

Main features of foamed cement insulation board:

1) Class A fireproof, high durability, building energy saving can reach more than 65%.

2) Cost-effective and economical. The cement foam insulation board has low production cost and simple construction technology, and is the most economical among all A-class non-combustible insulation materials.

3) Lightweight insulation. The dry density of the product is 120-230kg m3, and the thermal conductivity is w (m·k).

4) Early strength, high strength. The dry density of 170kg m3 products has a strength of 1 day up to MPA and 28 days strength, and the technical performance is at the leading level in the same industry.

5) Strong adhesion. Foam concrete insulation board is a cement-based material, which has good compatibility and affinity with the main wall of the building, firm bonding, not easy to fall off, and the insulation system has air permeability, good wind pressure resistance and earthquake resistance.

6) The construction is convenient, the foam concrete insulation board can be pasted or dry-hung construction, which can be used for external wall insulation, external wall insulation, and can also be used for roof thermal insulation, and the construction method is flexible and diverse, with strong adaptability and wide application.

7) Green environmental protection, non-toxic, pollution-free, pollution-free, and can use industrial waste residue to save energy and benefit waste.

8) Good durability, no aging problem, and the same life as the building.

The size of the bubble hole of the cement foam insulation board is related to the concentration of the foaming agent, the water temperature, the weather temperature, the mixing time after adding the foaming agent, and the temperature of the cement. It's not one reason, if you really can't adjust well, you can come to learn from us. We produce foamed cement insulation boards here every day.

They are all peers, learn from each other, and each other should be.

I'll introduce you to a product and talk to me privately.

1. Feeding and mixing: Add the quantitative cement, foaming agent and foam stabilizing enhancer to the mixer through the feeding system, and dry mix for 30 seconds.

2. Stirring: Add a certain amount of warm water to the blender and stir wet for 2 minutes; Add the quantitative blowing agent to the blender and stir for 8-15 seconds.

3. Injection molding and foaming: then inject the slurry into the mold for foaming, and the foaming process takes about 3-5 minutes.

4. Initial maintenance: After the injection mold is completed, the initial maintenance is carried out when a number of small destruction forests are placed.

5. Defiberization stupid mu mold: when the foamed cement insulation board completes the initial setting, it can be demoulded when it has the initial strength.

6. Cutting: The foamed cement insulation board blank with a certain strength can be cut after the blank is demolded, and the cutting specifications are adjusted according to the cutting blade.

7. Finished product curing: the curing age of foamed cement insulation board should not be less than 7 days.

We can see cement foam insulation board in the insulation project of the outer retaining wall of many buildings, which is an emerging environmentally friendly building material, which is often used as a fire door core board, wall insulation project and roof insulation board, and is also a good insulation material. So what are the characteristics of cement foam insulation board? What are the precautions for its use?

What are the characteristics of cement foam insulation board.

1.Cement foam insulation board is a new type of environmentally friendly building decoration materials, in the process of use, it will not produce and release the most toxic odor and toxic gas, will not produce a threat to human health, and will not cause pollution to the surrounding environment, so that consumers can use it with confidence.

2.Cement foam insulation board has good thermal insulation, sound insulation, fire resistance and high temperature resistance, can be applied to all kinds of building decoration or other wall insulation projects, its installation process is very convenient, fast, compared with traditional building insulation materials, with multiple use of safety guarantees.

3.Compared with other insulation materials, cement foam insulation board has a low water absorption rate, even in a very humid environment, it can play its thermal insulation role normally, has a long service life, is a durable inorganic insulation material, generally only need to do a thermal insulation construction can be done.

4.Cement foam insulation board has good advantages in thermal insulation effect, flame retardant effect and product material, which can save the cost of building and eliminating the cost of insulation engineering of the outer wall of the collapsed building to a certain extent. Precautions for cement foam insulation board.

1.If the base wall of the building is made of concrete and aerated concrete, then a layer of interfacial agent can be brushed on the surface of the wall to improve the adhesion between the cement foam board and the wall.

2.Before construction, cement mortar should be used to level the base wall of the decoration building, and then clean up the impurities around it after leveling, otherwise it is easy to paste the cement foam insulation board with certain difficulties in the later stage.

3.We should try to choose to buy high-quality adhesive mortar products, otherwise it is easy to affect the safe performance of cement foam insulation board, because the weight of cement foam insulation board will be heavier than traditional insulation materials, so it needs adhesive mortar with stronger bonding effect for construction. 4.

When spraying the surface glue layer, it is necessary to pay attention to the treatment of its thickness to prolong the service life of the cement foam insulation board. If its thickness is too thick, it will cause the surface glue slurry layer to crack and cannot be used normally; If the thickness is not enough, it will not be able to achieve the expected thermal insulation effect, and it is also useless.

My conclusion: I will temporarily introduce the relevant knowledge of cement foam insulation board here today, and I hope that friends who are troubled in this area can be helpful. If you still want to know or consult more relevant information, welcome to pay attention to the decoration security network!

Concrete with fibers is used in foamed cement boards, which can increase the compressive strength of foamed cement boards.

Performance characteristics of cement foam board:

1. High fire resistance Cement foam board belongs to A1 grade fireproof material, with good fire resistance, and the fire resistance reaches more than 1000, which fully meets the requirements of fireproof isolation belt.

2. High heat retention The closed cell rate of cement foam board is 95%, and high closed cell rate reduces convective heat transfer, which is a prerequisite for high thermal insulation. The thermal conductivity of the special board for fireproof isolation belt is basically the same as that of polystyrene board, which can meet the needs of building thermal insulation. The dry density is generally 150m3 kg, and the thermal conductivity is in the compressive strength.

3. Non-toxic and harmless cement foam board will not burn at high temperature and does not release toxic gases, which is a safe and environmentally friendly building material.

4. Long service life The service life of cement foam board is more than 50 years, which can keep pace with the life of the building.

5. Good water resistance Because the special board for cement foam board belongs to silicate materials, the water resistance is very superior.

6. Good interface Because the material is a porous material and homogeneous with mortar and wall, the interface is very good, and it does not need to be anchored in the construction process like organic or rock wool insulation materials, and it can be pasted directly.

7. Energy conservation and environmental protection There is no impact on the environment caused by harmful gas emissions in production, construction and use; Avoid the pollution of the environment caused by repeated insulation and dismantling waste; It will not cause a threat to the environment and personal safety caused by the combustion of traditional insulation materials; There is no damage caused by the flying dust of mineral wool materials to the human respiratory tract and **; After the building is scrapped and demolished, the material can be crushed and refilled, which will not cause pollution to the environment and achieve sustainable production.

You can add some carbon black, carbon black itself has a reinforcing effect, I am from Zhengzhou Tairui, and our customers who do cement foam insulation boards add a little carbon black.

The cement foam insulation board is added with Furui carbon black FR5200 for good reinforcement.

First of all, consider the percentage of the main material, how much of the cement is in your overall production? Generally, it is not less than 70% in order to make the strength ideal;

Secondly, consider the water-cement ratio, which is too large and causes the strength to deteriorate! Generally should not exceed;

Considering the additional material fly ash and the same amount again, the additional material price is too large, resulting in the weakening of the strength;

Again, the water absorption rate is too large because the admixture is less than a certain one, and there is one admixture that specifically reduces the water absorption;

Strength cracking also needs to consider maintenance, cement foam board is in need of water retention maintenance, wind and sun cause water to evaporate in advance, no strength, easy to crack.

Use high-grade cement and add silica fume.

The foamed cement insulation board process is:

1.Base layer: concrete wall or various masonry walls + cement mortar screed layer + bracket 2Adhesive layer: Adhesive.

3.Insulation layer: foamed cement board.

4.Plastering layer: plastering mortar + standard alkali-resistant coating mesh cloth + anchor plastering mortar + reinforced alkali-resistant coating mesh cloth.

5.Finishing layer: coating + flexible water-resistant putty.

Face brick + flexible adhesive + flexible caulk.

The foamed cement board is used as the roof insulation material, which greatly improves the adhesion performance between the insulation layer and the floor base. In the past, benzene board was used as the thermal insulation layer in most floor heating construction, which could not be well combined with the original base surface, and there was no effective adhesion, resulting in delamination, hollowing, cracking, etc.

The foamed cement board is used as the thermal insulation layer, so that the foamed cement insulation layer is filled with the small convex and uneven base surface of the original floor slab, and can be grasped and grasped to form a strong adhesion performance. After construction, the original surface layer basically reaches the level level, which brings convenience to the next process and can ensure the overall effect of uniform thickness of the surface layer.

In addition, after 1 or 2 years of use, the insulation layer originally made of benzene board gradually sinks after being stepped on for a long time, and some cracks reach 5 10mm, and in serious cases, it will cause damage to the heating pipe and leak. The use of foamed cement as the thermal insulation layer will not produce this phenomenon at all, because the compressive strength of foamed cement is higher than that of benzene board, and the advantages are very obvious.

At the same time, all walks of life pay more and more attention to environmental protection, health, with benzene board as thermal insulation, in the heating polystyrene (styrene board) will increase with the temperature, residual benzene and alkene will be released, especially in winter heating, doors and windows are tightly closed, air mobility is very poor, toxic gases can not be replaced, is bound to cause certain harm to the human body. The roof insulation made of foamed cement is not, the raw material of cement foaming agent is vegetable fatty acids, and the synthetic body is water-soluble, which is a safe and environmentally friendly health product and will not cause harm to the human body.

Application of foamed cement insulation layer in floor heating.

The foamed cement insulation layer is a structural layer with specified density, strength and thermal conductivity formed by adding cement foaming agent to a certain proportion of cement slurry and pouring it on the floor after stirring foaming. The function of polystyrene foam board is the same as that of the "Technical Regulations for Ground Radiant Heating" (JGJ142-2004), and this technology is widely used in South Korea, Japan, Europe and other places

1) It has strong dispersion and safe fluidity before drying, and is easy to be tightly combined with the upper filling layer, avoiding the voidability formed by benzene board insulation.

2) It has good strength. In addition to the functions of thermal insulation and sound insulation, foamed cement also has the function of supporting floor heating pipes and ground load-bearing, because of its high strength and no deformation, it can avoid the ground cracks formed by using benzene boards.

3) Good sound insulation. The foamed cement forms a large number of porous independent pores, which can absorb sound well.

4) Light weight. The weight of foamed cement per cubic meter is about 400-500 kg.

5) The construction speed is fast. Before construction, the building floor slab does not need to be leveled, and can be directly constructed. It can realize one-time integral pouring molding, and overcome the shortcomings of many processes, long construction period and high repair rate of traditional operations.

6) Eliminate the aluminum foil layer, steel wire mesh and benzene board and other processes in construction, and reduce the process of leveling layer, and reduce the cost.