TWM465430U - Porous concrete brick with internal membranes - Google Patents

Description

Porous cement brick with inner membrane

A porous cement brick having an inner membrane, in particular, a method in which a methyl cellulose is added to a foaming agent during the manufacturing process, so that the film body on the surface of the chamber produced after foaming not only increases the viscosity but also is not easily broken. And can be coated with cement slurry after adding cement slurry to make a cement brick structure with several chambers.

According to the continuous improvement of building technology, people's demand for building materials has gradually diversified. Today's building materials are gradually moving toward multi-functional development. Their demand is, for example, fire prevention, moisture proof, sound insulation, etc. Today's building materials are based on the above requirements. It has been developed to enhance the safety of living and to provide additional functions. Please refer to the Republic of China Patent Application No. 200631748 "Method for Manufacturing Sound Absorbing Cement Bricks", which discloses a process for sound absorbing bricks, which is mainly cemented. The material (plaster plaster), water, foaming agent and fiber are mixed, mixed with certain air, and finally mixed into the quick-drying cement, and mixed with the high-shear mixer and the secondary blending machine to mix the raw materials. The porous sound-insulating bricks with bubble size can be obtained. The cement bricks made by this technology can achieve the heat insulation and sound insulation effects. However, the user needs to use the high-shear mixer mentioned in the paper to meet the uniform bubble size requirements. In order to blend the machine, in addition to the increase in the cost of the appliance, another disadvantage is that the mixed bubbles will still rupture during the curing of the cement, and the fineness of the cement Barrier no bubbles generated in communication, In addition, it is impossible to isolate the air circulation, so that the sound insulation and heat insulation (high thermal conductivity) effect is greatly reduced; also, please refer to the Republic of China Patent No. 012241 "Independent bubble porous lightweight refractory brick manufacturing method", which discloses a light fireproof The process of bricks is mainly to first grind the refractory mixture into a mucus, and then the foaming agent is formed into a plurality of independent foams at 600 rpm, and the refractory mixture and the foaming agent are poured at 120 rpm. Mixing, and producing foam refractory mud, and then filling the foam refractory mud into the mold, and after drying, it is fired in the kiln at 1200 ° C for 40 hours to form independent bubble porous lightweight refractory brick, and the cement brick is made. It can prevent the pores generated by the cement bricks from being connected, but the cement bricks produced have a large specific gravity. Moreover, in the past, in order to avoid cracking when the bubbles and the cement are stirred, animal glue (such as gelatin or bone glue) is usually added to the foaming agent. , leather glue) to increase the viscosity of the bubble, but the animal glue is easy to be affected by water and tide and easy to aging and deterioration, and in the foaming process, after the chemical reaction of animal glue and foaming agent (magnesium powder, aluminum powder), Foaming The difference in expansion and contraction is large (about 100% after expansion and 60% or less after shrinkage), which is one of the main causes of the connection of bubbles. Therefore, how to stabilize the expansion of foaming produces uniform size and mutuality. The bubbles that are connected to each other and further reach the low-specific gravity foamed cement, which is a problem to be solved.

In view of the above problems, the creator is based on years of experience in related industries and product design, researching and analyzing the structure of cement, and designing better cement bricks. Therefore, the main purpose of this creation is The invention provides a porous cement brick with an inner membrane which is light in weight, has fireproof and soundproof effect.

In order to achieve the above purposes, the main purpose of this work is to mix monomethyl cellulose with a blowing agent into an air. After mixing, one of the foams has a certain viscosity and stably expands, and the foaming is in the middle foam. Generating plural a bubble of uniform size, each of which forms a chamber filled with air, the surface of which is a film containing methyl cellulose; and a pre-mixed cement slurry is stirred with the above-mentioned foaming agent The two are mixed and then filled in a mold to form a cement brick; on the substrate, during the process of gradually solidifying the cement slurry, the membrane system containing methyl cellulose on the surface of the chamber is gradually formed by the cement solidification process. The gap is attracted, and then the coating is filled in the gap, so that the space of the chamber is still completely closed, and the inside is still covered with gas, because the chambers are in a state of disconnection, The cement brick after the manufacture can have better heat insulation and sound insulation effects, and the proportion of the cement brick after the manufacture can be greatly reduced.

In order for your review board to have a clear understanding of the purpose, technical features and effectiveness of this work, please refer to the following instructions for illustration.

10‧‧‧Cement brick

101‧‧‧ Cement

102‧‧‧ chamber

1021‧‧‧membrane body

103‧‧‧ gap

H‧‧‧Heat radiation

A‧‧‧air

11‧‧‧Blowing agent mixing step

12‧‧‧ Cement slurry mixing step

13‧‧‧Mixed steps

14‧‧‧Cell curing step

Figure 1 is a three-dimensional appearance of the creation.

Figure 2 is a schematic diagram of the production process of this creation.

Figure 3 is a schematic diagram of the state of the chamber when the mixing step is created.

Fig. 4 is a schematic view showing the state at the start of solidification of the cement.

Figure 5 is a schematic diagram of the state in which the cement is solidified.

Figure 6 is a schematic diagram of the implementation of this creation (1).

Figure 7 is a schematic diagram of the implementation of this creation (2).

Please refer to "Figure 1". The figure shows the three-dimensional appearance of the cement brick. The cement brick 10 in the figure is made of cement 101. The cement 101 can be, for example, Portland cement. (Portland Cement), which is a hydraulic cementitious material made of silicate cement clinker, 0%-5% limestone or granulated blast furnace slag, and appropriate amount of gypsum. The main component of citrate cement clinker is Tricalcium citrate 3CaO. SiO ₂ , dicalcium citrate 2CaO. SiO ₂ , tricalcium aluminate 3CaO. Al ₂ O ₃ and tetracalcium aluminophosphate 4CaO. Al ₂ O ₃ . Fe ₂ O ₃ ; wherein the cement 101 is coated with a plurality of chambers 102, the inside of which is respectively covered with air, and the adjacent chambers 102 are not in communication with each other.

Please refer to "Fig. 2", which is a schematic diagram of the production process of the creation, which includes the following steps: (1) a blowing agent mixing step 11: a foaming agent (composition of foaming agent) The system may comprise a sodium 12-alkylsulfate, a magnesium powder or an aluminum powder, and the monomethyl cellulose is tempered with the aqueous phase to produce a stable expansion. The expansion ratio is greater than 100%, and when expanded, a plurality of foams are generated. Forming a plurality of independent chambers (such as the chamber 102 shown in "Fig. 1"); (2) a cement slurry mixing step 12: mixing a cement material (such as Portland cement) with water In combination, the cement is hydrated to form a cement slurry; (3) a mixing step 13: mixing the foaming agent mixed with methyl cellulose with the cement slurry to make the cement slurry Covering each chamber, the surface of the chamber is a membrane containing methyl cellulose; (4) a chamber curing step 14: the water molecules originally present in the cement slurry during the curing process of the cement slurry The position will form a plurality of pores in the form of pores due to evaporation of water, and each chamber exists between the cement slurry and the void (shape Covered), at this time, the membrane body on the surface of the chamber will be filled in each gap, and the air in each chamber is still covered by the membrane body of the chamber. After the hardening of the mud is completed, the chamber is completed. It is also solidified and formed into a cement brick containing a plurality of chambers inside.

Please refer to "Figure 3", as shown in the figure. A schematic diagram of the state of the chamber in the step, in accordance with the above-mentioned mixing step 13, as shown in the figure, after the chambers 102 are mixed, they are coated with the slurry-like cement 101, and a membrane body 1021 of the surface of each chamber 102 is Containing methyl cellulose, which slows the water dispersion loss of the film body 1021 and increases the viscosity of the film body 1021 to increase the surface tension thereof, thereby making the bubble-like chambers 102 uniform in size and having The preferred viscosity is not easy to break; at this time, the chamber 102 is filled with gas, wherein the gas can be, for example, an air, an inert gas, a carbon dioxide, etc., wherein carbon dioxide is used as a filling gas, and carbon dioxide can be used. The film body 1021 is less susceptible to oxidation and accelerates cracking).

Please refer to "Fig. 4". The figure shows the state of the cement solidification at the beginning of the creation. As shown in the figure, when the slurry cement 101 starts to solidify, the water molecules originally contained will gradually evaporate. There is originally a water molecule in the slurry cement 101, and the position where the water molecules evaporate forms a gap 103 (the shape of the gap 103 is, for example, a fine hole or other irregular shape); The film body 1021 on the surface of the chamber 102 adjacent to the gap 103 is filled with the gap 103, since the curing process is gradual, and the film body 1021 has a better viscosity. And it is not easy to break, so that the surface covering the gap 103 is finally formed, and although the chamber 102 may be in a slightly deformed state, the chamber 102 still exists, so that the gas inside is still affected by the membrane body 1021. Coated.

Please refer to "Picture 5". The figure shows the state of solidification of the cement. Please refer to "Figure 4". As shown in the figure, when the slurry cement 101 is fully cured, it contains methyl fiber. The film body 1021 is filled on the surface of each gap 103 and is also solidified, so that the chamber 102 is always kept in a sealed state, and the inside thereof is still covered with air a.

Please refer to "Figure 6", as shown in the figure. Schematic diagram (1), as can be seen from the figure, the cement brick 10 referred to in the present invention has a plurality of unconnected chambers 102 in its solid structure, so that the whole cement brick 10 has a relatively good fireproof and soundproofing. As shown in the figure, when the cement brick 10 is in contact with a heat source (for example, a fire source), the fire source conducts a heat radiation H to the cement brick 10 because the cement brick 10 contains a plurality of non-connected cavities. The chamber 102 is covered with air inside, so that the thermal conductivity can be reduced (the heat transfer coefficient of the air is about 0.025 watts/(m.degree.), which is less than the thermal conductivity of the general cement of 0.28 to 0.435 watts/( M. degrees)) Therefore, when the heat radiation H contacts the cement brick 10 referred to in the present creation, its heat conduction is greatly reduced.

Please refer to "Fig. 7". The figure is shown in the figure (2). As shown in the figure, the cement brick 10 referred to in this creation has a large number of chambers 102 inside, and the interior of each chamber is also The air is covered with a, so that the weight of the cement brick 10 is lighter than that of the ordinary cement brick, and in the case of the same volume, the specific gravity of the cement brick 10 is less than 0.5 after the actual measurement, and the optimum range is 0.3~ 0.48 (the specific gravity of water is 1, the proportion of general cement bricks is >1). Therefore, when the cement brick 10 referred to in this creation is placed in water, it can float on the water surface. Therefore, due to its weight and specific gravity, Compared with the conventional cement bricks, it can be significantly lower in terms of transportation costs, and it also adds a lot of convenience during construction (for example, it can reduce the cost of handling labor); in addition, the cement bricks 10 referred to in this creation are also good. The main reason for the sound insulation effect is that the air a inside the chamber 102 that is not connected is used to reduce the conductivity of the sound wave (the sound wave is poor in the air), so that the cement brick 10 in this creation can be retained. a certain hardness, but also a lighter quality, and, Further, it has the effects of fire prevention and sound insulation. In the future, it can be effectively applied as a decorative building material with light weight, high hardness, sound insulation and fireproof effect.

As can be seen from the above, the porous water with endometrium is referred to in this creation. Mud brick, which mainly adds monomethyl cellulose to the foaming agent, and a bubble-like chamber generated by stirring, and a film body on the surface of the chamber is made by the material properties of methyl cellulose. The viscosity increases to slow the rate of water dispersion loss, thereby increasing the surface tension of the film body to make it difficult to break. Further, during the foaming process, the interior of each chamber is covered with gas, and after foaming, it is combined with The pulverized cement is blended and then poured into the mold to form. When the slurry cement is gradually solidified, the membrane body of each chamber is also solidified to form a solid chamber directly inside the cement brick; The plurality of adjacent chambers referred to in the creation are in a state of being disconnected from each other, thereby making the manufactured cement brick have good heat insulation, sound insulation effect and light weight specific gravity; accordingly, After the creation of the basis, it is indeed possible to provide a porous cement brick with an inner membrane which is light in weight, fireproof and soundproof.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; any person skilled in the art can make equal changes and modifications without departing from the spirit and scope of the present invention. , should be covered by the scope of this creation patent.

In summary, the effectiveness of this creation is in the form of new types of patents such as “industry availability,” “novelty,” and “progressiveness”; the applicant filed a new patent with the bureau in accordance with the provisions of the Patent Law. Application.

10‧‧‧Cement brick

101‧‧‧ Cement

102‧‧‧Intima

Claims (7)

A porous cement brick having an inner membrane which is prepared by mixing a cement and a foaming agent, and then curing, comprising: a plurality of chambers, which are independent and non-connected, a foaming agent is added to the methyl cellulose to be formed by stirring, and each chamber is coated with a gas; a film body is formed on the surface of each of the chambers, the film body is formed of the methyl cellulose; The chamber is covered by the cement. The porous cement brick with an inner membrane as described in claim 1, wherein the cement is a Portland cement. The porous cement brick having an inner membrane according to claim 1, wherein the gas is an air. The porous cement brick having an inner membrane according to claim 1, wherein the gas is an inert gas. The porous cement brick having an inner membrane according to claim 1, wherein the gas is carbon dioxide. The porous cement brick having an inner membrane according to claim 1, wherein the porous cement brick has a specific gravity of 0.5 or less. The porous cement brick with an inner membrane as described in claim 1, wherein the foaming agent may comprise a sodium 12-alkyl sulfate, a magnesium powder, and an aluminum powder.