KR102089463B1 - Panel for construction materials having the heat insulation and sound absorbing properties by using the industrial waste materials, And the compositions of the panel, And the manufacturing method of the panel - Google Patents

Abstract

The present invention relates to an insulating sound absorbing foam panel for building materials utilizing industrial waste, a composition for the panel, and a method for manufacturing the panel.
Specifically, a molded body of a porous foam using industrial waste selectively containing fly ash, bottom ash, blast furnace slag powder and red mud as a raw material, and a composition of a building material excellent in light weight, heat insulation, sound absorption, and mechanical strength, and the above In the insulating sound-absorbing foam panel using a composition,
In order to facilitate assembly between a plurality of panels, the composition and the manufacturing method and the shapes of the panels are organically applied.

Description

Panel for construction materials having the heat insulation and sound absorbing properties by using the industrial waste materials, And the compositions of the panel, And the manufacturing method of the panel}

The present invention relates to an insulating sound absorbing foam panel for building materials utilizing industrial waste, a composition for the panel, and a method for manufacturing the panel.

Specifically, a molded body of a porous foam using industrial waste selectively containing fly ash, bottom ash, blast furnace slag powder and red mud as a raw material, and a composition of a building material excellent in light weight, heat insulation, sound absorption, and mechanical strength, and the above In the insulating sound-absorbing foam panel using a composition,

In order to facilitate assembly between a plurality of panels, the composition and the manufacturing method and the shapes of the panels are organically applied.

In general, heat-insulating insulation materials for construction and civil engineering are thermally curable or thermoplastic polymer materials, such as porous polyester, polyurethane, and polypropylene. Products using porous mineral materials such as fumis and pearlite are mainly used (non-patent document 1 and patent document 1).

Meanwhile, foams recycled from industrial wastes such as bottom ash, fly ash, and waste glass powder are molded and used as an insulating sound absorbing material.

Patent Document 2 discloses a method for preparing a geopolymer foaming preparation by adding a surfactant to an alkali active material such as an alkali metal hydroxide or an alkali metal silicate to a material having latent hydraulic properties such as fly ash, pozzolanic performance,

Non-Patent Document 2 and Patent Document 3 include alumina silicate foam (porous geopolymer) as a method of preparing alumina silicate (flare ash) as an alkali active agent (NaOH, Na ₂ SiO ₃ ) and a foaming agent such as Al, Si, FeSi, SiC powder, admixture A method for producing a porous foam by foaming at 80 ° C. by adding fumed silica or the like is disclosed.

Patent Document 4 discloses a method for producing a foam by adding a blowing agent such as C, SiC, CaCO ₃ , etc. to dolomite [(Ca, Mg) CO ₃ ] in a waste glass powder and heating it to about 800 to 900 ° C. .

The composition of the non-patent document 1 and patent document 1 is mainly composed of an organic material, and thus has excellent heat-insulating sound-absorbing properties, but has poor mechanical strength and fire resistance.

On the other hand, the manufacturing method of the foamed molded article using the fly ash of Patent Document 2 and Non-Patent Document 2 has a problem that the manufacturing cost is relatively inexpensive, but the weather resistance and mechanical strength are lowered.

In particular, the high-strength, high-insulation, sound-absorbing or shock-absorbing inorganic foamed molded body has a very high marketability as materials for building interior materials (wall materials, flooring materials, ceiling materials) and road sound-absorbing walls. It is necessary to develop a competitive product such as a fiber sound absorbing material or a relatively cheap alternative product.

United States Patent Publication No. 2008-0050574 (2008.2.28.) Japanese Patent Application Publication No. 2016-534965 (2016.11.10.) Registered Patent Publication No. 10-1646155 (Aug. 8, 2016) Japanese Patent Publication No. 2005-041754 (2005.02.17.)

 Advances in Materials Science and Engineering 2015, Article ID 274913, p1-5  Ceramic-Slikaty 58 (3) p188-197, (2014)

The object of the present invention is a molded body of a porous foam using industrial waste selectively containing fly ash, bottom ash, blast furnace slag powder and red mud as a raw material, and a composition of building materials having excellent light weight, heat insulation, sound absorption, and mechanical strength, etc. And in the insulating sound-absorbing foam panel using the composition, in order to facilitate assembly between a plurality of panels, the composition and the manufacturing method and the panel is organically functioning shape, insulating sound-absorbing foam panel for building materials using industrial waste , It relates to a composition for the panel and a method for manufacturing the panel.

In order to achieve the above object, in the insulating sound-absorbing foam panel for building materials utilizing the industrial waste according to the present invention, the composition for the panel and the method of manufacturing the panel,

The panel,

Fly ash, bottom ash, blast furnace slag and red mud, one or more of the industrial waste, which is a mixture of a foaming agent, an organosilane and a binder, but a groove (a) and a projection (b) on the side ) Is formed in the longitudinal direction, it is characterized in that the assembly between the plurality of adjacent ones between the groove (a) and the projection (b).

In addition, the groove (a) of the foam panel is demolded in the manufacturing process such that the upper inner wall is curved upwards to expand the space, and the upper inner wall is adjacent to the protrusion (b) coupled to the groove (a) through natural curing. It is characterized by the narrowing of the expanded space as it is made.

The composition of the panel,

It is characterized by comprising 0.05 to 1 part by weight of a foaming agent, 0.1 to 1 part by weight of an organosilane, and 5 to 20 parts by weight of a binder based on 100 parts by weight of industrial waste.

At this time, the binder is added to 1200 g of 85% phosphoric acid in a flask, and 300 g of aluminum hydroxide is added to the flask, heated to 50 ° C., and when the reaction starts at 100 ° C., it is cooled to 80 ° C. for 90 minutes, and then cooled to room temperature. , P ₂ O ₅ / Al ₂ O _{3 It} is characterized in that a transparent aluminum phosphate aqueous solution having a molar ratio of 2.0 to 3.0 is prepared and diluted by adding water until the concentration is 50% and pH 1.2 to 1.8.

In addition, the industrial waste is characterized in that it is pulverized to 50 ~ 100㎛ powder.

In addition, the foaming agent is hydrogen peroxide (H ₂ O ₂ ), sodium carbonate (Na ₂ CO ₃ ), calcium carbonate (CaCO ₃ ), sodium dodecyl sulfate (sodium dodecyl sulfate) and sodium lauryl sulfate (sodium lauryl sulfate) It is characterized by being one.

In addition, the organosilane is selected from any one of tetraethoxysilane (TEOS), methyl trimethoxysilane (MTES) and isobutyl trimethoxysilane (IBTS) and diluted with 5% in water or ethanol solvent. It is characterized by.

Method of manufacturing the panel,

Preparing a raw material by pulverizing a mixture of any one or more of fly ash, bottom ash, blast furnace slag and red mud, as a raw material (S1);

A step of mixing a binder, a foaming agent, an organosilane and water, a binder, a foaming agent, an organosilane and water in a raw material prepared in the raw material preparation step (S1) (S2);

A mold injection step (S3) of injecting the mixed preparation solution into the mold through the step (S2) of mixing the binder, foaming agent, organosilane, and water with the raw material;

A first curing step (S4) in which the mixed preparation solution injected into the mold is first cured in the mold injection step (S3);

When the first curing step (S4) is completed, demoulding the foam from the mold to commercialize, demoulding step (S5); And

It characterized in that it comprises a; natural curing step (S6) to assemble the product demolded in the demolding step (S5) to naturally cure.

At this time, the curing step is characterized in that it is performed for 1 to 10 hours under conditions of room temperature, and 0.5 to 1 hour under conditions of 100 to 200 ° C.

In addition, the step (S2) of mixing the binder, the foaming agent, the organosilane, and water in the raw material is characterized in that the solid / liquid ratio is mixed in a sludge form of 0.35.

According to an embodiment of the present invention, it is possible to easily manufacture a foamed molded product using fly ash, bottom ash, blast furnace slag, and red mud, which are generated in large quantities as industrial waste, thereby providing excellent heat resistance, heat insulation, sound absorption, and mechanical strength. There is an effect that can be provided by manufacturing a building material at a low cost.

According to the panel according to another embodiment of the present invention, by using the composition of the present invention and the principle of natural curing through the manufacturing method through the composition, there is an effect that can easily assemble the final product panel.

1 is a flow chart of a method of manufacturing a heat insulating sound absorbing foam for building materials according to the present invention.
Figure 2 is an evaluation of the foam properties by content of the composition of the heat insulating sound-absorbing foam for building materials utilizing industrial waste according to the present invention.
Figure 3 shows the principle of easy construction and assembly of the insulating sound-absorbing foam panel for building materials utilizing industrial waste.

The terms or words used in the specification and claims should not be construed as being limited to a conventional or dictionary meaning, and the inventor can appropriately define the concept of terms in order to best describe his or her invention. Based on the principles, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, the examples shown in the embodiments and drawings described herein are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, and various equivalents can be substituted at the time of this application. It should be understood that there may be water and variations.

Hereinafter, prior to the description with reference to the drawings, not necessary for revealing the gist of the present invention, that is, a known configuration that can be added by those skilled in the art will obviously not shown or not specifically described Make notes.

The present invention relates to an insulating sound absorbing foam panel for building materials utilizing industrial waste, a composition for the panel, and a method for manufacturing the panel.

Specifically, a molded body of a porous foam using industrial waste selectively containing fly ash, bottom ash, blast furnace slag powder and red mud as a raw material, and a composition of a building material excellent in light weight, heat insulation, sound absorption, and mechanical strength, and the above In the insulating sound-absorbing foam panel using a composition,

In order to facilitate assembly between a plurality of panels, the composition and the manufacturing method and the shapes of the panels are organically applied.

Example  1. For building materials using industrial waste Insulation sound absorption Foam  Composition

The composition of the insulating sound-absorbing foam for building materials utilizing industrial wastes according to the present invention is made by mixing industrial wastes, foaming agents, organosilanes and binders.

Specifically, based on 100 parts by weight of the powdered industrial waste, 0.05 to 1 part by weight of a foaming agent, 0.1 to 1 part by weight of an organosilane, and 5 to 20 parts by weight of a binder are blended, and the following description is referred to for each of these compositions. .

Industrial waste

Industrial wastes used in the present invention include fly ash and bottom ash discharged to coal-fired power plants and blast furnace slag and red mud (waste generated in the aluminum oxide production process by processing bauxite through a buyer process). [Table 1] shows their chemical composition.

As a heat-insulating sound absorbing material, these may be used individually or may be mixed with each other in an appropriate ratio. Particularly, when red mud is used alone, it is preferable to neutralize it with an acid or to mix it with other materials since the sludge exhibits strong alkalinity.

In addition, since the bottom ash and the blast furnace slag are generated as lumps or relatively large particles, they may be used by finely pulverizing them to 50 to 100 μm required for the present invention.

Fly ash is defined as the inorganic oxide that remains after incineration or combustion. Most of fly ash is generated in thermal power plants, and in addition, it is also generated by the combustion process of coal in waste incinerators, cogeneration plants, and other industrial sites. The composition of fly ash is mainly composed of inorganic oxides, and may be amorphous or small amounts of crystalline metal oxides such as quartz, iron oxide, and mullite may be generated.

In the bottom ash, when coal is burned in a thermal power plant boiler, the ash component having a large particle size or a large particle size falls to the bottom of the boiler.

Blast furnace slag is a slag produced when pig iron is made from iron ore in a furnace, and impurities other than iron are collected, and 500 to 1,000 kg per ton of pig iron is produced. It is widely used for slag wool, special fertilizer, blast furnace cement, and blast furnace brick raw materials used as insulation and sound insulation materials.

Red mud is a residue obtained by collecting alumina from bauxite by Bayer method in aluminum smelting, and is a residue containing a large amount of iron oxide.

CaO Al ₂ O ₃ SiO ₂ MgO FE ₂ O ₃ K ₂ O Na ₂ O TiO ₂ SO ₃ Fly ash 3.41 22.8 52.2 0.89 3.85 1.49 0.13 1.18 2.90 bottom
Ash 0.83 28.9 52.2 0.30 9.77 1.38 0.35 1.98 - blast furnace
Slag 41.1 14.6 33.1 7.03 0.97 0.27 0.15 0.63 0.07 Red
Mud 8.90 22.40 20.30 0.30 15.5 0.03 11.0 6.67 0.10

Foaming agent

The foaming agent used in the present invention may generate bubbles in an acidic or neutral solution, and sodium dodecyl sulfate is used as a hydrogen peroxide (H ₂ O ₂ ), sodium carbonate (Na ₂ CO ₃ ), calcium carbonate (CaCO ₃ ), or a surfactant. (sodium dodecyl sulfate), sodium lauryl sulfate, or the like can be used.

The amount used may be 0.05 to 1.0 parts by weight based on 100 parts by weight of industrial waste. The addition amount of less than 0.05 parts by weight may be difficult to form a foam having a desired void, because the amount of bubbles generated is small or the size of the bubbles is too small, and the content exceeding 1 part by weight may cause economic problems.

Organosilane

The organosilane used in the present invention is added to increase the hydrophobicity of the foam. Tetraethoxysilane (TSi (OC ₂ H ₅ ) ₄ TEOS), methyltrimethoxysilane, [CH ₃ Si (OCH ₃ ) ] MTES] and isobutyltrimethoxysilane, Si (OCH ₃ ) ₃ (CH ₃ ) ₂ IBTS], and 5% diluted in water or ethanol solvent can be used.

The amount of use is 0.1 to 1.0 part by weight with respect to 100 parts by weight of industrial waste, and the addition amount of less than 0.1 part by weight tends to cause the hydrophobic performance to be too low, and the content exceeding 1.0 part by weight may be more hydrophobic than necessary or may be a problem of economic efficiency.

Binder

The binder is an acidic aluminum phosphate aqueous solution.

The acidic aluminum phosphate aqueous solution is prepared by reacting phosphoric acid (85%) and aluminum hydroxide by heating to prepare a transparent aluminum phosphate aqueous solution having an aluminum phosphate concentration of 65 to 75% and a P ₂ O ₅ / Al ₂ O ₃ molar ratio of 2.0 to 3.0. Then, it is an aqueous solution with a pH of 1.2 to 1.8 diluted to a suitable concentration by adding water to it.

As an example of a specific manufacturing method, 1200 g of 85% phosphoric acid is placed in a flask, and 300 g of aluminum hydroxide is added thereto and heated to about 50 ° C. When the reaction starts, the temperature of the exothermic reaction rises above about 100 ° C, so it is cooled to about 80 ° C and maintained for about 90 minutes, then cooled to room temperature.

This aqueous solution has a P ₂ O ₅ / Al ₂ O ₃ molar ratio of about 2.8 and an aluminum phosphate concentration of about 50%. The amount of use is about 5 to 20 parts by weight based on 100 parts by weight of industrial waste. If less than 5 parts by weight is added, it is difficult to develop sufficient strength by reducing the bonding force between solid particles, and when adding a content exceeding 20 parts by weight, the strength does not increase further and economical efficiency is a problem.

Within the content range of the above-mentioned composition, the applicant conducted the experiment of FIG. 2.

Figure 2 of the accompanying drawings is an evaluation of the foam properties by content of the composition of the insulating sound-absorbing foam for building materials utilizing industrial waste according to the present invention.

At this time, the production method of the foam prepared by the content of each composition was used the production method of the present invention described later, the compressive strength (kg / cm ² ), sound absorption rate (NRC) and apparent specific gravity (gcm ³ ) of the foam are It was measured by a general measurement method.

As a result of the measurement, an increase in the amount of the aluminum phosphate (AAP) as a binder shows a tendency to increase the strength of the foam. When the amount of the foaming agent added increases, the curvature rate increases relatively, and thus, the sound absorption rate increases.

It can be seen that the compressive strength increases to an average of 100 kg / cm 2 or more when the amount of the binder added is 20 parts by weight.

In addition, the apparent specific gravity was found to increase proportionally with the compressive strength. The sound absorption rate generally shows a tendency to decrease inversely as the apparent specific gravity increases.

According to these measurement results, it was found that the foam properties are generally increased compared to the comparison groups using only conventional fly ash, bottom ash or blast furnace slag.

However, these comparative groups did not use the binder according to the present invention with respect to the binder, but as a general alkaline binder, it was found that the use of such a binder affected the foam properties.

In particular, referring to Figure 2, according to Experimental Group 8, using only blast furnace slag (BFS) as industrial waste, based on 100 parts by weight of blast furnace slag, 20 parts by weight of binder, 0.1 parts by weight of sodium dodecyl sulfate as a foaming agent and organosilane It was found that 0.2 parts by weight of tetraethoxysilane was used as an average foam property with a compressive strength of 128 kg / cm ² , a sound absorption coefficient (NRC) of 0.88, and an apparent specific gravity of 1.00 gcm ³ .

Example  2. For building materials Insulation sound absorption Foam  Manufacturing method

A method of manufacturing an insulating sound-absorbing foam for a building material, which is manufactured based on the above-described composition, may refer to FIG. 1.

1 is a flow chart of a method of manufacturing a heat insulating sound absorbing foam for building materials according to the present invention.

The manufacturing method according to Figure 1 of the accompanying drawings is a raw material preparation step (S1); Mixing a binder, a foaming agent, an organosilane and water in a raw material (S2); Mold injection step (S3); Curing step (S4); And demolding step (S5).

1. Raw material preparation step (S1)

The raw material preparation step (S1) is a step of preparing a raw material by pulverizing one or more of fly ash, bottom ash, blast furnace slag, and red mud used as industrial waste.

These raw materials can be used by finely pulverizing to 50 to 100㎛.

2. Binders, foaming agents, Organosilane  And mixing water in the raw material (S2)

The step (S2) of mixing the binder, the foaming agent, the organosilane and the water with the raw material is a step of mixing the binder, the foaming agent, the organosilane and the water with the raw material prepared in the raw material preparation step (S1).

At this time, the binder (foaming agent, organic silane, and water) mixed through the step (S2) of mixing the raw materials (mixed manufacturing solution below) in a sludge form so that the solid / liquid ratio is 0.35.

Mixing of such a binder, a foaming agent, an organosilane, and water may be performed at once, or may be sequentially mixed.

In particular, depending on the design conditions, the binder, organosilane and water are first mixed, the mixed mixture is accommodated in a container of a stretchable material, and then a foaming agent is injected from the lower side of the container to be mixed using a syringe.

In addition, the empty empty container is placed in a '∩' shape that does not float in the liquid, but the raw material in a powder state is trapped inside the container. At this time, the height of the container is to have a lower height than the mixed solution to the foaming agent.

Thereafter, the container is lifted using a tool so that the raw material in powder form is mixed from the bottom of the mixed solution so that mixing is evenly performed.

At this time, when mixing the raw materials may be carried out to heat stirring of 20 ~ 30 ℃. When heat of less than 20 ° C is applied, the purpose of heating and stirring is lost, and when heat exceeding a temperature of 30 ° C is applied, foaming by the foaming agent may proceed.

3. Mold injection step (S3)

The mold injection step (S3) is a step of injecting a mixture of a raw material + a binder + a foaming agent + an organic silane + water into a mold through the step (S2) of mixing a binder, a foaming agent, an organic silane, and water into a raw material. .

At this time, the mold used may be a silicone mold, but is not limited thereto.

4. 1st curing step (S4)

The first curing step (S4) is a step of first curing the mixed preparation solution injected into the mold in the mold injection step (S3).

At this time, it may be performed at 100 ~ 200 ℃ 20 ~ 30 minutes. Curing according to these conditions can be interpreted as a hardening step before curing is completed, rather than conditions for completely curing the composition in the mold.

Depending on the design conditions, when performing the curing step, microwave waves can be applied to the mold. Accordingly, heat is added due to friction between particles by vibrating the mixed preparation solution and foaming may proceed.

That is, by using the silicone mold in the mold injection step (S3), it is possible to ensure that the microwave wave is well transmitted to the entire surface of the mixed manufacturing solution contained in the mold. If the material of the mold is not silicon, the transmission of microwave waves is blocked, and there is a fear that foaming may not be performed on the entire surface of the mixed preparation liquid.

5. Demolition step (S5)

The demoulding step (S5) is a step of demolding the foam panel from the mold when the first curing step (S4) is completed.

6. Natural hardening step (S6)

The natural curing step (S6) is a step of assembling the panel demolded through the demoulding step (S5) by inserting the slide, etc., and then naturally curing at room temperature for about 5 to 10 hours.

At this time, the final hardening (curing) of the panel is possible by natural curing, and the space between the grooves (a) for assembly and the protrusions (b) of other adjacent panels can be narrowed as shown in FIG. 3.

Example  3. For building materials using industrial waste Insulation sound absorption Foam panel

Referring to FIG. 3 of the accompanying drawings, silver of an insulating sound absorbing foam panel for building materials utilizing industrial waste according to the present invention.

Referring to FIG. 3, it can be seen that the mold according to the second embodiment is configured to be in the form of a panel according to FIG. 3.

Figure 3 shows the principle of easy construction and assembly of the insulating sound-absorbing foam panel for building materials utilizing industrial waste.

In the heat insulating sound absorbing foam panel according to FIG. 3 of the accompanying drawings, a groove (a) is formed in the longitudinal direction on one side, and a protrusion (b) corresponding to the groove (a) is formed on the opposite side.

Although these grooves (a) and protrusions (b) are shown as being configured one by one in FIG. 3, since the drawings do not limit the scope of the present invention, they are actually two grooves (a) and two protrusions (b). Is formed on each side of the panel, it will be possible to assemble a plurality of panels in all directions (四方).

The insulating sound-absorbing foam panel according to the present invention, after primary curing, after demolding, is assembled using grooves (a) and protrusions (b) between a plurality of panels, and naturally cured, if natural curing is pigmented, assembled The space between the grooves (a) and the protrusions (b) is wide, so that it can be narrowed.

To this end, the shape of the primary cured and demolded protrusion (b) is in the form of a general protrusion, but the groove (a) is configured such that its upper inner wall is curved upwards so that the interior space of the groove (a) is abundant. That is, the lower inner wall of the groove (a) is originally formed in a shape that the groove should have, and the upper inner wall is formed to be curved upward in relation to the center of the groove.

Due to this, in the natural hardening process, the upper inner wall is gradually lowered by gravity and hardened to harden in a state where the gap with the projection (b) is narrowed.

The conditions for natural curing for this are 5 to 10 hours at room temperature as described above. If it is less than 5 hours, curing may not be performed properly, and even if it exceeds 10 hours, no further curing is achieved.

Conventionally, when trying to combine the groove and the projection with respect to the completed panel, especially in the case of slide insertion, there was a problem that insertion is not smooth. For example, the slide does not work properly, or it is distorted between panels assembled after the slide is assembled.

On the other hand, according to the present invention, it is possible to overcome the above-mentioned problems when assembling, and after completion of natural curing, a gap between the grooves (a) and the protrusions (b) does not have a large gap.

It is obvious that the above description using the drawings is only the main points of the present invention, and that the present invention is not limited to the configuration of the drawings, as various designs are possible within the technical scope.

a: home
b: projection
S1: Raw material preparation stage
S2: Mixing the binder, foaming agent, organosilane and water into the raw material
S3: Mold injection step
S4: 1st curing step
S5: demoulding step
S6: Natural hardening step

Claims (10)

Fly ash, bottom ash, blast furnace slag and any one or two or more of a mixture of red mud is made of a composition comprising an industrial waste, a foaming agent, an organosilane, and a binder,
Grooves (a) and protrusions (b) are formed in the longitudinal direction on the side surfaces,
The adjacent ones between the plurality are assembled by the combination of the groove (a) and the protrusion (b),
The groove (a) of the foam panel,
It is characterized in that the upper inner wall is curved in the upper direction and is demolded in the manufacturing process so that the space is expanded, and the extended space is narrowed while the upper inner wall is adjacent to the protrusion (b) coupled to the groove (a) through natural hardening. Insulating sound-absorbing foam panel for building materials using industrial waste.
delete The method according to claim 1,
The composition,
Insulating sound-absorbing foam panel for building materials utilizing industrial waste, characterized in that it comprises 0.05 to 1 part by weight of foaming agent, 0.1 to 1 part by weight of organic silane, and 5 to 20 parts by weight of binder, based on 100 parts by weight of industrial waste.
The method according to claim 1,
The binder,
After adding 1200 g of 85% phosphoric acid to the flask, 300 g of aluminum hydroxide is added to the flask, heated to 50 ° C., and when the reaction starts at 100 ° C., it is cooled to 80 ° C. for 90 minutes, and then cooled to room temperature, P ₂ O ₅ / Al ₂ O ₃ Prepares a transparent aluminum phosphate aqueous solution having a molar ratio of 2.0 to 3.0,
Insulating sound-absorbing foam panel for building materials utilizing industrial waste, characterized by being prepared by diluting by adding water until the concentration is 50% and pH 1.2 to 1.8.
The method according to claim 1,
The industrial waste is characterized in that it is pulverized by pulverizing to 50 ~ 100㎛, insulating sound-absorbing foam panel for building materials utilizing industrial waste.
The method according to claim 1,
The foaming agent,
Hydrogen peroxide (H ₂ O ₂ ), sodium carbonate (Na ₂ CO ₃ ), calcium carbonate (CaCO ₃ ), sodium dodecyl sulfate (sodium dodecyl sulfate) and sodium lauryl sulfate (sodium lauryl sulfate) A heat insulating sound absorbing foam panel for building materials using industrial waste.
The method according to claim 1,
The organosilane,
Industrial use, characterized in that one of tetraethoxysilane (TEOS), methyl trimethoxysilane (MTES) and isobutyl trimethoxysilane (IBTS) is selected and used in a 5% dilution in a water or ethanol solvent. Insulation sound-absorbing foam panel for building materials using waste.
A method for manufacturing an insulating sound absorbing foam panel for building materials using industrial waste according to any one of claims 1 to 3,
Preparing a raw material by pulverizing a mixture of any one or more of fly ash, bottom ash, blast furnace slag and red mud, as a raw material (S1);
A step of mixing a binder, a foaming agent, an organosilane and water, a binder, a foaming agent, an organosilane and water in a raw material prepared in the raw material preparation step (S1) (S2);
A mold injection step (S3) of injecting the mixed preparation solution into the mold through the step (S2) of mixing the binder, the foaming agent, the organosilane and water with the raw material;
A first curing step (S4) in which the mixed preparation solution injected into the mold is first cured in the mold injection step (S3);
When the first curing step (S4) is completed, demoulding the foam from the mold to commercialize, demoulding step (S5); And
Method of manufacturing a heat insulating sound-absorbing foam panel for a building material, characterized in that it comprises; a natural curing step (S6) to assemble the product demolded in the demolding step (S5) to naturally cure.
The method according to claim 8,
The curing step,
At room temperature, it is performed for 1 to 10 hours,
It is characterized in that is performed for 0.5 to 1 hour under the conditions of 100 ~ 200 ℃, the method of manufacturing a heat insulating sound absorbing foam panel for building materials.
The method according to claim 8,
The step (S2) of mixing the binder, the foaming agent, the organosilane and water in the raw material is,
A method of manufacturing an insulating sound absorbing foam panel for building materials, characterized in that the solid / liquid ratio is mixed in a sludge form of 0.35.

Images