KR101603669B1 - Mortar and method for fabricating thereof - Google Patents

Abstract

The present invention relates to a mortar, and more particularly, to a mortar which has been developed for the purpose of adiabatic spraying used for finishing work to prevent moisture condensation and heat loss generated in a portion facing to the outside air, The present invention relates to a mortar capable of coping with fire resistance and fire resistance performance including insulation properties such as a core material of a composite panel, a core material of a fire door, a freezing warehouse flooring material, and a fireproof coating material. The present invention relates to a modified silicate obtained by adding at least one of zinc chloride, aluminum monophosphate, aluminum phosphate, citric acid and boric acid to a silicate; 1 to 10 parts by weight of a quick-setting admixture containing at least one of sodium silicate, zinc carbonate and zinc oxide per 100 parts by weight of the modified silicate; And 25 to 100 parts by weight of a filler comprising expanded perlite.

Description

Mortar and method for fabricating thereof

The present invention relates to a mortar, and more particularly, to a mortar which has been developed for the purpose of adiabatic spraying used for finishing work to prevent moisture condensation and heat loss generated in a portion facing to the outside air, The present invention relates to a mortar capable of coping with fire resistance and fire resistance performance including insulation properties such as a core material of a composite panel, a core material of a fire door, a freezing warehouse flooring material, and a fireproof coating material.

Most of the conventional mortar for insulating spraying exhibits the heat insulating property by mixing the porosity of inorganic foamed light weight stones such as vermiculite or perlite and EPS grains with gypsum and cement.

However, such a porous lightweight stone does not participate in the reaction but merely serves as a simple aggregate, resulting in a remarkable increase in water-gypsum-cement ratio, which makes the mechanical properties very weak.

These insulation materials are easily broken even after curing due to their poor mechanical properties and scattered into the atmosphere, causing air pollution. And the problem of environmental pollution such as fungus living due to excessive moisture absorption characteristic of vermiculite and perlite used as an insulating material.

Examination of the prior art of refractory insulating mortar using porous lightweight stones, Patent No. 10-0326614 (name of the invention: refractory coating composition), due to excessive use of organic materials such as organic lightweight aggregate, latex and synthetic fiber, There is a problem that gas is expected to be generated, and there is no dust at the time of construction, but the strength of itself is too weak, and there is a problem that the coating composition after curing is contaminated with air due to generation of dust.

In addition, Japanese Patent Application No. 10-0693859 (entitled "Fireproof Coating Material for Concrete and Composition of Fireproof Coating for Concrete Using the Composition") and 10-0807244 entitled "High Refractory Inorganic Binder Composition and Refractory Board Using the Same" Silicate-based compositions are used as non-cementitious compositions because it is difficult to secure a sufficient pot life due to the occurrence of sharpness, and a large amount of silicate-based materials is required in order to secure sufficient slump for spraying.

In this conventional technique, silicate is denatured by adding strong acid such as hydrochloric acid, phosphoric acid, sulfuric acid or acetic acid to the silicate in most cases, which is complicated and dangerous in the domestic water stability and manufacturing process.

Japanese Patent Registration No. 10-1145871 discloses a sprayable material using an organic binder and a latent hydraulic material such as heavy oil and bottom ash, but it is difficult to apply the material because the insulation property is remarkably low. And the heavy metals in the bottom ash are volatilized and there is a risk of contamination.

In addition, Japanese Patent Laid-Open No. 10-2004-0082094 (entitled "Hydraulic composition using heavy oils") has a problem that it can not be applied as a heat insulator utilizing porosity of heavy oil.

On the other hand, since the patent registration No. 10-0760040 (name of the invention: a method of producing a foamed ceramic) requires a complicated rapid gelling process to expose it to carbon dioxide or immerse it in an acid solution after foaming, There is a problem in that it is not suitable for use.

Most of the thermal insulation mortar currently used is produced by mixing porous materials such as gypsum and cement with porous materials such as perlite, but it has a limit because it relies on simple fillers to lower thermal conductivity.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art as described above, and it is an object of the present invention to provide a heat insulation spraying method for use in a finishing work for preventing moisture condensation and heat loss, Accordingly, it is an object of the present invention to provide a mortar capable of coping with fire resistance and fire resistance performance including insulation properties such as a core material of a composite panel, a fire door core, a freezing warehouse flooring, .

In order to accomplish the above object, the present invention provides a mortar comprising: a modified silicate in which at least one of zinc chloride, aluminum monophosphate, aluminum phosphate, citric acid and boric acid is added to silicate; 1 to 10 parts by weight of a quick-setting admixture containing at least one of sodium silicate, zinc carbonate and zinc oxide per 100 parts by weight of the modified silicate; And 25 to 100 parts by weight of a filler comprising expanded perlite.

Here, the modified silicate preferably comprises 5 to 15 parts by weight of at least one additive of zinc chloride, aluminum monophosphate, aluminum phosphate, citric acid and boric acid in 100 parts by weight of the silicate.

It is also preferred that the mortar further comprises 0.2 to 2 parts by weight of at least one blowing catalyst material selected from manganese dioxide and potassium iodide.

The filler may be selected from the group consisting of Expandable Perlite, Microporous Silica, Fumed Silica, Fly Ash, Diatomite, Light Calcium Carbonate, , Expandable vermiculite, wollastonite, and aerogels (Aero Gel).

The filler may be selected from the group consisting of Expandable Perlite, Microporous Silica, Fumed Silica, Fly Ash, Diatomite, Light Calcium Carbonate, , Expandable Vermiculite, Wollastonite, Aerogel, and at least one of Illite, Bentonite, Zeolite, Silica Fume, Cericite, Aluminum Hydrate, Aluminum Oxide, Magnesium Oxide, Titanium Oxid, Loess, Kaolin Meta Kaolin, Acid Clay, , And EPS (Expandable Polystyrene) having a diameter of 1 to 5 mm.

On the other hand, the filler may be selected from the group consisting of light calcium carbonate, calcium carbonate, microporous silica, fumed silica, soda lime borosilicate, fly ash, silica fume, expanded persimmon, diatomaceous earth , Wollastonite, olivine, sericite, staurolite, talc, calcite, titanium dioxide, aluminum hydroxide, aluminum oxide and silica.

Here, the filler may be selected from the group consisting of shredded expanded polystyrene (EPS) having a diameter of 3 to 7 mm and excellent thermal insulation properties, nylon fiber, glass fiber, carbon fiber, aramid fiber, rock wool, pulp and various cellulose fibers It is preferable that at least one is added.

In order to control the initial cohesion and the viscosity of the slurry during the spraying, the filler is mixed with at least one selected from the group consisting of hydroxypropyl methylcellulose (HPMC), carboxymethylcellulose (CMC), gum arabic, methyl cellulose (MC) Or more.

The mortar may further comprise at least one reinforcing agent selected from the group consisting of nylon fibers, glass fibers, carbon fibers, aramid fibers, rock surface fibers, pulp and various types of cellulose fibers and at least one bubble generation promoter selected from nonionic surface active agents or vegetable and animal protein bubbles, It is preferable to further include an initial cohesive strength and a viscosity adjusting agent of at least one of hydroxypropyl methylcellulose (HPMC), carboxymethylcellulose (CMC), gum arabic and methyl cellulose (MC)

Wherein the reinforcing agent has a thickness of 10 to 20 microns and a length of 2 to 5 mm and the amount of the reinforcing agent is 1 to 2 parts by weight based on 100 parts by weight of the modified silicate, 1 part by weight of the modified silicate, and the initial adhesion and the viscosity controlling agent are included in an amount of 1 to 6.0 parts by weight based on 100 parts by weight of the modified silicate.

In order to accomplish the above object, the present invention provides a method for producing a mortar comprising the steps of: preparing a modified silicate obtained by adding at least one of zinc chloride, aluminum monophosphate, aluminum phosphate, citric acid and boric acid to a silicate; 1 to 10 parts by weight of a rapid setting solution containing at least one of sodium silicate, zinc carbonate and zinc oxide per 100 parts by weight of modified silicate; Mixing 25 to 100 parts by weight of a filler comprising expanded perlite with 100 parts by weight of modified silicate and 25 to 100 parts by weight of an additive; And mixing the pre-mixed filler and the additive with the modified silicate treated to prepare a slurry.

Wherein the modified silicate is prepared by preparing an additive prepared by dissolving at least one of zinc chloride, aluminum monophosphate, aluminum phosphate, citric acid and boric acid in 1 to 20 parts by weight in 100 parts by weight of ordinary water, Adding 5 to 15 parts by weight of an additive; adding 5 to 30 parts by weight of general water to 100 parts by weight of a silicate additive to which an additive is added to the silicate; mixing the silicate additive and the general water uniformly, The method comprising the steps of:

The filler may be selected from the group consisting of Expandable Perlite, Microporous Silica, Fumed Silica, Fly Ash, and the like having a size of 0.1 to 1 mm in the step of pre-mixing the filler and the additive in an amount of 25 to 100 parts by weight. At least one of diatomite, light calcium carbonate, expanded vermiculite, wollastonite and aerogels may be used. Illite, bentonite, Bentonite, Zeolite, Silica Fume, Cericite, Aluminum Hydrate, Aluminum Oxide, Magnesium Oxide, Titanium Oxid, Loess ), Kaolin, Meta Kaolin and Acid Clay, or to increase the thermal conductivity and to achieve an ultra-light weight of less than 0.1 g / cm2, The heating layer is preferably added to the EPS (Expandable Polystyrene) crushing of diameter 1 to 5mm in size in order to achieve a role of absorbing a shock from the outside effectively.

Also, in the step of premixing the filler with 25 to 100 parts by weight of the additive, the additive is selected from the group consisting of light calcium carbonate, calcium carbonate, microporous silica, fumed silica, soda lime borosilicate One type of inorganic filler having relatively excellent heat insulating properties such as soda lime borosilicate, fly ash, silica fume, expanded vermiculite, diatomaceous earth, wollastonite, olivine, sericite, petite, talc, calcite, titanium dioxide, aluminum hydroxide, aluminum oxide, (EPS) having a diameter of 3 to 7 mm, which is excellent in heat insulation property, and a nylon fiber, a glass fiber, a carbon fiber, an aramid fiber, a cotton wool, a pulp, various kinds of cellulosic fibers Or the like, or to adjust the initial adhesion and the viscosity of the slurry when spraying, Hydroxypropyl methyl cellulose, it is preferable to add one or more of: (methyl cellulose MC), xanthan gum (HPMC:: Hydroxypropyl methylcellulose), carboxymethyl cellulose (CMC Carboxymethylcellulose), gum arabic, methylcellulose.

Preferably, the method further includes a step S400 of adding an additive including a foaming catalyst, a reinforcing agent, a bubble activator, and an initial adhesion promoting agent to the slurry and mixing the slurry.

As a foaming catalyst, 0.1 to 1 part by weight of at least one of manganese dioxide (MnO2) and potassium iodide is added in an amount of 0.2 to 2 parts by weight based on 100 parts by weight of the modified silicate, and the mixture is mixed for 3 to 5 minutes using a paddle mixer Wherein the reinforcing agent is at least one selected from the group consisting of nylon fibers, glass fibers, carbon fibers, aramid fibers, rock wool fibers, pulp fibers and various cellulose fibers. The reinforcing agent has a fiber thickness of 10 to 20 microns, And the addition amount is 1 to 2 parts by weight based on 100 parts by weight of the modified silicate, and the bubble activator is 0.6 to 0.6 parts by weight based on the nonionic surfactant or vegetable and animal protein foam based on the modified silicate. To 1 part by weight, and the initial tackiness and the viscosity adjusting agent are selected from the group consisting of hydroxypropyl methylcellulose (HPMC), carboxy At least one of carboxymethylcellulose (CMC), gum arabic, methyl cellulose (MC), and xanthan gum is added, preferably 1 to 6 parts by weight based on 100 parts by weight of the modified silicate.

The present invention has the following effects.

First, since the specially developed modified silicate is used, it is possible to provide a mortar capable of improving main water resistance and improving adhesion to the base surface when producing mortar.

Secondly, the modified silicate of the present invention can solve the problem of re-shrinkage which may occur due to delay of hardening after bubbling.

Third, it is possible to select various materials with excellent thermal conductivity according to the required applications such as microporous silica, fumed silica, fly ash, diatomaceous earth, hard calcium carbonate, expanded vermiculite and wollastonite together with expanded perlite as a specially developed modified silicate and light- .

Fourth, when applied to hydraulic mortar with hydraulic spraying, it is possible to solve the problems of initial strength and initial adhesive strength at the time of construction, in particular, the problem of strength reduction due to expansion due to bubble generation.

1 is a flow chart for explaining a method for producing modified silicate for use in mortar according to the present invention.
FIG. 2 is a flow chart for explaining a mortar manufacturing method according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In addition, although the term used in the present invention is selected as a general term that is widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, since the meaning is described in detail in the description of the relevant invention, It is to be understood that the present invention should be grasped as a meaning of a term that is not a name of the present invention. Further, in describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and which are not directly related to the present invention will be omitted. This is for the sake of clarity of the present invention without omitting the unnecessary explanation.

1 is a flow chart for explaining a method for producing a modified silicate for use in a mortar according to the present invention.

The modified silicate used in the mortar according to the present invention is prepared by dissolving 1 to 20 parts by weight of at least one of zinc chloride, aluminum monophosphate, citric acid phosphate and boric acid in 100 parts by weight of general water (S110). At this time, the additive may further include at least one of potassium chloride, aluminum sulfate, and magnesium sulfate.

And then added with 5 to 15 parts by weight of the additive prepared on the basis of 100 parts by weight of the silicate (S120).

Then, 5 to 30 parts by weight of general water is added to 100 parts by weight of the silicate additive to which the additive is added to the silicate (S130).

Subsequently, a silicate addition and a general water are uniformly mixed in a high-speed rotary stirrer to prepare a modified silicate (S140).

The silicate includes at least one of the first to fourth species (the molar ratio of the first kind of sodium silicate (SiO2 / Na2O: 2.1 to 2.3), the second kind of sodium silicate (SiO2 / Na2O molar ratio: 2.4 to 2.6) (Molar ratio of SiO2 / Na2O: 3.10 to 3.30) and a fourth kind of sodium silicate (molar ratio of SiO2 / Na2O: 3.4 to 3.6)) of sodium silicate, powdery sodium silicate, potassium silicate and lithium silicate Can be manufactured.

For example, liquid sodium silicate and potassium silicate may be used, sodium silicate and potassium silicate may be used, sodium silicate may be used alone, lithium silicate may be used alone, or powdered sodium silicate may be used alone.

For reference, a foamed ceramic excellent in water resistance can be obtained when foamed ceramics are manufactured using the modified silicate prepared from the modified silicate of the present invention using lithium silicate.

In addition, powdered sodium silicate requires heating by using a heat source to dissolve in water, or it needs to dissolve for a long time.

For reference, the sodium silicate of the first type and the sodium silicate of the second type in the solution type sodium silicate have a high curing time because of the high content of the sodium component and have a high probability of whitening and relatively high viscosity.

In the case of the third type sodium silicate, the viscosity is relatively more appropriate than that of the first, second and fourth kinds of sodium silicate, and the cost is low. Since there are many domestic production sites, it is convenient to purchase. Therefore, considering economical efficiency and productivity, Is most preferably used.

In the case of the fourth type sodium silicate, the viscosity is relatively low as compared with the first and second types of sodium silicate, so that it is easy to control the desired slump and the SiO 2 content is high, so that it is easy to improve the treatment and water resistance.

As the additive to be added to the silicate for producing the modified silicate, at least one of zinc chloride, potassium chloride, aluminum monophosphate, aluminum phosphate, boric acid, citric acid, aluminum sulfate and magnesium sulfate may be selected and mixed.

Each of the additives is preferably dissolved in water and added in an amount of 10 parts by weight based on 100 parts by weight of water or 2 to 15 parts by weight based on 100 parts by weight of silicate with respect to at least one additive, To 12 parts by weight.

When the additive is less than 2 parts by weight, sufficient denaturation can not be attained. Therefore, there is a problem that mechanical strength of the heat insulating layer may be lowered by moisture or water. If the additive is more than 15 parts by weight, And a large amount of water is used for viscosity control due to an increase in the viscosity, so that the bonding strength of the heat insulating layer is lowered and the mechanical strength is lowered.

It is effective to use a homomixer or the like which is a high-speed mixer when the additive is added, and it is preferable to add the additive in a state where the silicate is put into a high-speed mixer and rotated.

In addition, since the viscosity is increased after the complete mixing reaction by adding the additives, 5 to 15 parts by weight of water can be used as a diluent based on 100 parts by weight of the modified silicate.

For reference, when the amount of water is not less than 15 parts by weight, problems such as a decrease in strength after curing and an increase in shrinkage may occur. Water may be used in tap water, ground water or industrial water without any particular limitation, except for water containing a large amount of impurities that react with silicates to lower the binding force or change the properties of the modified silicate.

FIG. 2 is a schematic view for explaining a device configuration used in a manufacturing process of a mortar according to the present invention, and FIG. 3 is a flowchart for explaining a mortar manufacturing method according to the present invention.

The method for producing a mortar according to the present invention produces the modified silicate shown in FIG. 1 (S100).

Then, 1 to 10 parts by weight of at least one of sodium silicate, zinc carbonate, and zinc oxide is added to 100 parts by weight of the modified silicate to improve the solubility of the modified silicate (S150).

On the other hand, a lightweight filler and other additives capable of improving the mechanical properties of the sprayed material with excellent heat insulating performance are premixed (S200).

The lightweight filler is preferably selected from the group consisting of Expandable Perlite, Microporous Silica, Fumed Silica, Fly Ash, Diatomite, Light Calcium Carbonate Expandable Vermiculite, Wollastonite, and Aerogel may be used. In addition, Illite, Bentonite, Zeolite, Silica Fume, Cericite, Aluminum Hydrate, Aluminum Oxide, Magnesium Oxide, Titanium Oxid, Loess, Kaolin, Meta Kaolin, , Acid clay (Acid Clay) may be selected and mixed. In order to further enhance the thermal conductivity and realize an ultra-light weight of less than 0.1 g / cm 2, and to effectively realize the role of the insulating layer to absorb impact from the outside, expanded EPS (Expandable Polystyrene) having a diameter of 1 to 5 mm is added The addition of EPS can also contribute to cost reduction by significantly reducing the weight of the slump per unit volume.

Other additives include calcium carbonate, calcium carbonate, microporous silica, fumed silica, soda lime borosilicate, fly ash, silica fume, expanded vermiculite, and the like, having a size of 1 to 2 microns or less. , One or more inorganic fillers having relatively good thermal insulation properties such as diatomaceous earth, wollastonite, olivine, sericite, petite, talc, calcite, titanium dioxide, aluminum hydroxide, aluminum oxide, silica sand and the like.

(EPS) having a diameter of 3 to 7 mm, which is excellent in heat insulation property, one kind of nylon fiber, glass fiber, carbon fiber, aramid fiber, rock wool, pulp, various kinds of cellulose fibers or the like Add more than that.

In order to control the initial cohesion and viscosity of the slurry during spraying, a mixture of hydroxypropylmethylcellulose (HPMC), carboxymethylcellulose (CMC), gum arabic, methyl cellulose (MC), xanthan gum And the mixture is pre-mixed.

The premixed lightweight filler and other additives are then first premixed with the modified silicate treated at step S300. Here, when 100 parts by weight of the filler and other additives are used as a standard, the amount of the modified silicate is preferably 100 to 400 parts by weight, and more preferably 250 to 300 parts by weight. Based on the modified silicate, the fillers and other additives are from 25 to 100 parts by weight. When the modified silicate is contained in an amount of 100 parts by weight or less, the slump is so low that it can not be sprayed and it is not preferable because it can prevent the foaming even if spouting is possible. If the modified silicate contains 400 parts by weight or more of the modified silicate There is a problem that thermal conductivity may be lowered due to excessive amount of modified silicate introduced, and layer separation may occur with a lightweight filler such as an EPS pole during mixing.

The state of the mixture in this primary mixing is advantageous to maintain the slump 13-20, most preferably 16-17. In this case, when the slump is 13 or less, the flowability is low, so it is difficult to transfer the slurry to the discharge port at the time of construction using the equipment to be sprayed, and there is a possibility that expansion due to sufficient foaming during the foaming process may not be performed. Is 20 or more, the fluidity is so high that the layer separation of the modified silicate may occur during the transportation to the light-weight filler and the discharge port, the uniform foaming by the foaming agent can not be provided, and the efficiency of the construction .

Then, additives such as a foaming catalyst, a reinforcing agent, a foam activation agent and an initial adhesion promoting agent are added and mixed.

As the foaming catalyst, 0.1 to 1 part by weight of manganese dioxide (MnO2) and potassium iodide is added to the total weight portion and mixed for 3 to 5 minutes using the paddle mixer 10 to prepare a slurry. It is 0.2 to 2 parts by weight based on 100 parts by weight of the modified silicate.

When the hydrogen peroxide solution is used as a foaming agent, for example, the foaming catalyst promotes a decomposition reaction with the hydrogen peroxide solution to generate a large amount of oxygen. In such an example, the hydrogen peroxide water is decomposed into water and oxygen as the activation energy is lowered by a catalyst such as manganese dioxide and potassium iodide. At this time, the mass of the catalyst does not decrease, and the hydrogen peroxide water is decomposed into water and oxygen by the following reaction.

[Reaction Scheme]

Conventionally, the rate of decomposition reaction by the direct contact between hydrogen peroxide water and the catalyst, manganese dioxide and potassium iodide is very rapid, and it is difficult to control the bubbles. However, in the mixed slurry state with the modified silicate and light filler of the present invention, (TEST) that the rate of decomposition reaction can be controlled sufficiently. The decomposition reaction is carried out in the final mixing step, and it is preferable that the decomposition reaction is controlled to proceed for about 20 to 30 minutes in consideration of the time of transporting the slurry and the spraying time.

On the other hand, it is preferable to use manganese dioxide as the foaming catalyst, because the cost is relatively lower than that of potassium iodide and the control of the decomposition reaction rate is relatively easy. The amount of manganese dioxide to be added may be 0.1 to 1.0 part by weight, and most preferably 0.4 to 0.6 part by weight based on 100 parts by weight of the total slurry. When the addition amount is less than 0.1 part by weight, the decomposition reaction rate is too slow to obtain the desired foam. When the addition amount is more than 1.0 part by weight, the decomposition reaction rate is too fast, which makes it difficult to apply and abnormal bubbles are formed, Lt; / RTI >

As the reinforcing agent of the present invention, one kind or more of nylon fiber, glass fiber, carbon fiber, aramid fiber, rock surface fiber, pulp, various kinds of cellulose fibers and the like may be added, and the reinforcing agent has a fiber thickness of 10 to 20 microns or less And the length is preferably 2 to 5 mm, and the addition amount is preferably 0.5 to 1 part by weight based on 100 parts by weight of the slurry. And 1 to 2 parts by weight based on 100 parts by weight of the modified silicate.

Since the reinforcing agent enhances the strength of the foam, the reinforcing agent may be added at a ratio exceeding the above-mentioned ratio depending on the application place of the product, so that the reinforcing agent is not specially formed. However, when the addition amount is less than 0.5 part by weight, the function as a reinforcing agent is insignificant, so it is preferable to add more than 0.5 parts by weight. In addition, the reinforcing agent not only helps to improve the strength after curing because the foam is formed at room temperature in the case of the present invention mortar, but also helps to minimize the rebounding rate by improving initial strength against expansion after curing.

The bubble activator provides lubricity to the slurry to smooth the generation of bubbles due to the catalyst, thereby uniformizing the particle size of the bubbles.

The cell activator may generally be a nonionic surfactant or, if desired, vegetable and animal protein foam. The addition amount is preferably from 0.3 to 0.5 parts by weight, and other ratios may be added depending on the situation. And 0.6 to 1 part by weight based on modified silicate.

One or more of hydroxypropylmethylcellulose (HPMC), carboxymethylcellulose (CMC), gum arabic, methyl cellulose (MC), xanthan gum, etc. which are used as initial viscosity and viscosity modifiers And additives such as MC which may cause gelation upon contact with the modified silicate may be used. Therefore, it is preferable to use the above additives and the mixing time in the working process is 3 to 5 minutes. It is preferable to select an additive having good solubility in the modified silicate. The initial adhesive strength and the viscosity controlling agent are preferably 0.5-3.0 parts by weight (1 to 6 parts by weight based on 100 parts by weight of the modified silicate) based on 100 parts by weight of the slurry, and when the additives are added in an amount of 0.5 parts by weight or less, When 3.0 parts by weight or more is added, the fire-retardant performance is deteriorated and the viscosity becomes high and it becomes difficult to spray.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood that various changes and modifications will be apparent to those skilled in the art. Obviously, the invention is not limited to the embodiments described above. Accordingly, the scope of protection of the present invention should be construed according to the following claims, and all technical ideas which fall within the scope of equivalence by alteration, substitution, substitution, Range. In addition, it should be clarified that some configurations of the drawings are intended to explain the configuration more clearly and are provided in an exaggerated or reduced size than the actual configuration.

Claims (16)

Modified silicate comprising 100 parts by weight of silicate and 5 to 15 parts by weight of at least one additive selected from zinc chloride, aluminum monophosphate, aluminum phosphate, citric acid and boric acid;
With respect to 100 parts by weight of the modified silicate,
1 to 10 parts by weight of a quick-setting admixture containing sodium silicate and further comprising at least one of zinc carbonate and zinc oxide; And
And 25 to 100 parts by weight of a filler comprising expanded perlite.
delete The method according to claim 1,
Wherein the mortar further comprises 0.2 to 2 parts by weight of at least one blowing catalyst material selected from manganese dioxide and potassium iodide.
The method according to claim 1,
Wherein the filler comprises:
A microporous silica, a fumed silica, a fly ash, a diatomite, a light calcium carbonate, an expanded vermiculite Expandable Vermiculite, Wollastonite, Aerogel (Aero Gel).
The method according to claim 1,
Wherein the filler comprises:
A microporous silica, a fumed silica, a fly ash, a diatomite, a light calcium carbonate, an expanded vermiculite Expandable Vermiculite, Wollastonite, Aerogels (Aero Gel)
(Al2O3), magnesium oxide, titanium oxide (Al2O3), aluminum oxide (Al2O3), aluminum oxide (Al2O3), zinc oxide At least one of Titanium Oxid, Loess, Kaolin Meta Kaolin, Acid Clay,
Characterized in that the mortar comprises EPS (Expandable Polystyrene) having a diameter of 1 to 5 mm.
6. The method of claim 5,
Wherein the filler comprises:
Silica, calcium carbonate, microporous silica, fumed silica, soda lime borosilicate, fly ash, silica fume, expanded vermiculite, diatomaceous earth, wollastonite, olivine , Sericite, blast furnace, talc, calcite, titanium dioxide, aluminum hydroxide, aluminum oxide and silica sand.
The method according to claim 6,
Wherein the filler comprises:
(EPS) having a diameter of 3 to 7 mm, which is excellent in heat insulation property, at least one of nylon fiber, glass fiber, carbon fiber, aramid fiber, rock wool, pulp and various kinds of cellulose fibers is added to enhance the mechanical strength Features mortar.
8. The method of claim 7,
Wherein the filler comprises:
In order to adjust the initial cohesion and viscosity of the slurry during spraying, one or more of hydroxypropyl methylcellulose (HPMC), carboxymethylcellulose (CMC), gum arabic, methyl cellulose (MC) Characterized in that the mortar comprises at least one member selected from the group consisting of:
The method according to claim 1,
The mortar
A reinforcing agent of one or more of nylon fiber, glass fiber, carbon fiber, aramid fiber, rock surface fiber, pulp, various kinds of cellulose-
At least one of a non-ionic surfactant or a vegetable and animal protein foam,
Characterized in that it further comprises an initial adhesion strength and viscosity controlling agent of at least one of hydroxypropyl methylcellulose (HPMC), carboxymethylcellulose (CMC), gum arabic and methyl cellulose (MC).
10. The method of claim 9,
The reinforcing agent has a thickness of 10 to 20 microns, a length of 2 to 5 mm, an amount of 1 to 2 parts by weight based on 100 parts by weight of the modified silicate,
The bubble activator is contained in an amount of 0.6 to 1 part by weight based on 100 parts by weight of the modified silicate,
Wherein the initial adhesive strength and the viscosity adjusting agent are included in an amount of 1 to 6.0 parts by weight based on 100 parts by weight of the modified silicate.
(S110) of preparing an additive prepared by dissolving 1 to 20 parts by weight of at least one of zinc chloride, aluminum monophosphate, aluminum phosphate, citric acid and boric acid in 100 parts by weight of general water, (S130) adding 5 to 30 parts by weight of a general water to 100 parts by weight of a silicate additive added with the additive to the silicate (S130); and adding the silicate additive and the general water to a uniform To prepare a modified silicate (S100);
(S150) of 1 to 10 parts by weight of a quick-setting solution containing 100 parts by weight of the modified silicate, which further comprises at least one of zinc carbonate and zinc oxide containing sodium silicate;
(S200) premixing a filler comprising expanded perite and 25 to 100 parts by weight of an additive with respect to 100 parts by weight of the modified silicate; And
Mixing the pre-mixed filler and the additive with the modified silicate to prepare a slurry (S300). delete 12. The method of claim 11,
In step S200 of premixing the filler and 25 to 100 parts by weight of the additive,
The filler may be selected from the group consisting of Expandable Perlite, Microporous Silica, Fumed Silica, Fly Ash, Diatomite, Light Calcium Carbonate, It is possible to use at least one of Expandable Vermiculite, Wollastonite and Aero Gel and it is possible to use at least one of Illite, Bentonite, Zeolite, Silica Fume, Cericite, Aluminum Hydrate, Aluminum Oxide, Magnesium Oxide, Titanium Oxid, Loess, Kaolin, Meta Kaolin, Acid It is possible to select one or more of the Acid Clay, or to increase the thermal conductivity further, to achieve the light weight of less than 0.1 g / cm2 and effectively realize the effect of the thermal insulation layer to absorb external shocks. Characterized in that a crushed EPS (Expandable Polystyrene) having a diameter of 1 to 5 mm is added.
12. The method of claim 11,
In step S200 of premixing the filler and 25 to 100 parts by weight of the additive,
The additive may be selected from the group consisting of light calcium carbonate, calcium carbonate, microporous silica, fumed silica, soda lime borosilicate, fly ash, silica fume, expanded persimmon, diatomaceous earth One or more inorganic fillers having relatively excellent heat insulating properties such as wollastonite, olivine, sericite, petroleum, talc, calcite, titanium dioxide, aluminum hydroxide, aluminum oxide, silica,
(EPS) having a diameter of 3 to 7 mm, which is excellent in heat insulation property, and one kind or a kind of nylon fiber, glass fiber, carbon fiber, aramid fiber, rock surface, pulp and various kinds of cellulose fibers Or more,
In order to adjust the initial cohesion and viscosity of the slurry during spraying, one or more of hydroxypropyl methylcellulose (HPMC), carboxymethylcellulose (CMC), gum arabic, methyl cellulose (MC) Is added to the mortar.
12. The method of claim 11,
(S400) adding an additive including a foaming catalyst, a reinforcing agent, a bubble activator, and an initial adhesion promoter to the slurry, and mixing the slurry.
16. The method of claim 15,
As the foaming catalyst, 0.1 to 1 part by weight of at least one of manganese dioxide (MnO2) and potassium iodide is added in an amount of 0.2 to 2 parts by weight based on 100 parts by weight of the modified silicate, and the mixture is mixed for 3 to 5 minutes using a paddle mixer Slurry,
The reinforcing agent may be at least one of a nylon fiber, a glass fiber, a carbon fiber, an aramid fiber, a rock surface fiber, a pulp and various kinds of cellulose fibers. The reinforcement has a fiber thickness of 10 to 20 microns and a length of 2 to 5 mm And the added amount is 1 to 2 parts by weight based on 100 parts by weight of the modified silicate,
The bubbling activator comprises 0.6 to 1 part by weight of a nonionic surfactant or a vegetable and animal protein foaming agent on the basis of the modified silicate,
The initial adhesive force and viscosity adjusting agent may be selected from the group consisting of HPMC (Hydroxypropyl methylcellulose), Carboxymethylcellulose (CMC), Arabic gum, methyl cellulose (MC) And 1 to 6 parts by weight based on 100 parts by weight of the modified silicate.

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