KR101476609B1 - modifier composition powder for grouting material that controls rheological characteristics and special cement for grouting material that contains the same - Google Patents

Abstract

The present invention relates to a modifier composition powder for a grouting material that controls rheological characteristics, and special cement for a grouting material containing the same. The modifier composition powder for the grouting material that controls rheological characteristics according to the present invention is formed by mixing an alkylammonium tosylate coating solution in a liquid state for controlling rheological characteristics by including alkylammonium tosylate which gives and controls rheological characteristics of the grouting material, an emulsifier aid which gives stock solution stability and low temperature stability, and water; and a builder for a solidification agent which contains a divalent metal oxide and thus removes moisture contained in the coating solution to allow the coating solution in a liquid state to be changed into powder when the builder is mixed with the alkylammonium tosylate coating solution, wherein 0-30 wt% (exclusive of 0 wt%) of the alkylammonium tosylate coating solution and 70-100 wt% of the builder for a solidification agent are mixed. Therefore, the present invention includes the builder for a solidification agent containing a divalent metal oxide which is mixed with the akylammonium tosylate coating solution in a liquid state, and thus provides a modifier composition powder for a grouting material that controls rheological characteristics, and special cement for the grouting material containing the same, thereby facilitating powdering of the alkylammonium tosylate coating solution which controls rheological characteristics as well as satisfying all rheological characteristics.

Description

TECHNICAL FIELD [0001] The present invention relates to a cement composition for a grout, and a cement composition for a grout material containing the same. BACKGROUND OF THE INVENTION 1. Field of the Invention < RTI ID =

The present invention relates to a reformer composition powder for grout and a special cement for grout material containing the same, and more particularly to an alkylammonium tosylate coating liquid which is formed in a liquid phase to control rheological properties, And a special cement for a grout material containing the reforming composition powder for controlling a rheology characteristic easily obtainable by mixing a builder for a solidifying material containing a divalent metal oxide which generates an exothermic reaction when combined therewith.

The grout materials such as concrete and cement currently used in constructions made in various environments satisfy the characteristics of high viscosity but have the characteristics of low fluidity, self-filling property and water-insoluble separation property, and also satisfy the fluidity and early curability (Separation resistivity) is low, it has a problem in that it satisfies only some of the various required characteristics and fails to satisfy all of the required characteristics at the same time.

As a conventional technique, the "water-borne separated cement for underwater construction" disclosed in Korean Patent No. 10-1177307 and the "expansion-type water- However, since this thickener is a polymer, its solubility in water is low and a lump is formed. Therefore, it is applicable to grout which must be mixed within a few minutes due to weak agitation force unlike concrete which is agitated for a long time by strong agitating force There is a problem of delaying the condensation of the cement due to the hydration reaction, and there is a problem in that it can not satisfactorily satisfy various required characteristics as described above.

In order to solve these problems, the "reforming agent composition for controlling rheology properties" disclosed in Korean Patent No. 10-1015235 filed by the applicant of the present invention has a high viscosity, fluidity, self-filling property, early curing property, And separation resistance), so that it was possible to satisfy all of various rheological characteristics with only one kind.

However, the reformer composition for controlling the rheology characteristics is formed as a liquid phase, which requires a user who is accustomed to a product formed in a conventional powder form to require an additional process in the process of work, resulting in troublesome work. (0.5 g / cc) of dry particles by drying with a counter-current spray drier according to the method of preparing a high-density powder detergent for the surfactant family when powdered to form a dry powder, The mixture is pulverized by a separate mixing / grinding apparatus (using a high speed mixer, Loedige mixer, etc.), and liquid substances such as water are sprayed on the pulverized dried particles. The surface is treated with water insoluble substances such as zeolite and talc Caking. In order to have such a facility, a large factory site and huge resources There is a problem in that sphere.

Therefore, there is an urgent need for a technique capable of easily pulverizing a modifier composition for grout and controlling rheology characteristics of a liquid phase, and at the same time satisfying all of the rheological characteristics.

Patent Registration No. KR 10-1177307 Aug. 21, 2012, page 7 <28> ~ 8 <41> Patent Registration No. KR 10-1253310, Apr. 03, 2013, p. 9 <43> to 9 <45>

Accordingly, the present invention has been conceived in order to solve the above problems, and it is an object of the present invention to provide a builder for a solidifying material containing a divalent metal oxide mixed with an alkylammonium tosylate coating solution formed in a liquid phase, It is an object of the present invention to provide a reformer composition powder for grout and a special cement for grout material containing the same, which can easily rub the ammonolium tosylate coating solution and control the rheological properties that can satisfy all rheological characteristics at the same time.

In order to achieve the above object, the reforming composition powder for grout according to an embodiment of the present invention controls the rheological properties of the grout material, which comprises an alkylammonium tosylate imparting and controlling the rheology property of the grout material, And an alkylammonium tosylate coating liquid which is composed of a liquid phase containing water and controls rheological properties; And a builder for a solidifying material which contains a divalent metal oxide and is mixed with the alkylammonium tosylate coating solution to remove moisture contained in the coating solution and to pulverize the coating solution formed into a liquid phase; The alkylammonium tosylate coating solution is mixed in an amount of more than 0 wt% to 30 wt%, and the builder for solidifying material is mixed in an amount of less than 70 wt% to 100 wt%.

In order to achieve the above object, a special cement for a grout material containing a reformer composition powder for controlling a rheology characteristic according to another embodiment of the present invention is characterized in that the grout material 0.5 to 5% by weight of a modifier composition powder; 95 to 98.5% by weight of cement; And 0.5 to 1% by weight of an anti-caking agent.

As described above, the present invention provides a builder for a solidifying material containing a divalent metal oxide mixed with an alkylammonium tosylate coating solution which is formed in a liquid phase, and can easily produce an alkylammonium tosylate coating solution for controlling rheological properties, And at the same time, to control the rheological properties that can satisfy all of the rheological characteristics, and to provide a special cement for grout materials containing the reforming composition powder.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process diagram for manufacturing a reformer composition powder for grout and a special cement for grout material containing the same, for controlling rheology characteristics according to an embodiment of the present invention. FIG.

The reforming composition powder for grout according to the present invention was developed by applying the technique of self-drying and pulverizing using the heat of reaction generated by reacting builder for solidifying material with water.

Also, the builder for the solidification material is an inorganic type which is not reactive with the surfactant.

The reforming composition powder for grout according to the present invention is mixed with cement to have fluidity and does not cause caking, so that it can be stored for a long period of time.

The reformer composition powder for grout according to the present invention is a surfactant-based powder-type special additive which is not a polymer but has a psycho-polymer property such as viscosity of a polymer.

The modifier composition for a grout according to the present invention is a powdery surfactant-based (alkyltosylate) additive which is produced through a production process of coating an alkylammonium tosylate coating solution on a builder for a solidifying material and effectively removing water.

Hereinafter, preferred embodiments according to the present invention will be described in detail.

The reformer composition powder for controlling the rheology characteristics of the grout according to the present invention forms a special viscous structure (micelle structure) in water due to intermolecular interaction, so as not to adsorb to cement particles and control the viscoelasticity of water, And is formed so as to freely control the rheology characteristics (viscosity, fluidity, separation resistance, viscoelasticity, self-leveling, air retentivity, early curability, etc.).

The cement and the anti-caking agent may be mixed with the reforming composition powder according to the present invention to form a special cement which is an ultra-high viscosity and fluidity grout material. In the construction and civil engineering work, the mixing ratio is slightly different Lt; / RTI &gt;

When the ultra-high viscosity fluidized grout special cement formed by mixing the grout modifier composition powder according to the present invention is used for filling the inside filling structure for filling the steel pipe or filling the pier walls, The grout reforming agent composition powder may be mixed in 3 to 6 wt%, 94 to 96 wt% in cement, and 0.5 to 1 wt% in anti-caking agent. When mixing the cement, at least one of soil, slag, fly ash, clay, rock powder and waste concrete can be added and mixed, The cement is any one of general Portland cement (OPC cement), OPC cement / slag (slag cement), OPC cement / fly ash cement, and the special cement for grout material thus formed exhibits an underwater separation characteristic.

The alkylammonium tosylate coating solution for forming the reformer composition powder for controlling the rheology characteristics according to the present invention is characterized in that the alkyl ammonium tosylate imparting and controlling the rheological property of the grout material and the And a liquid phase containing water. At this time, the pH adjusting agent for adjusting the pH and the defoamer for removing the foaming agent are selectively mixed.

In the case where the Alkyl Ammonium Tosylate coating solution is formed to contain an emulsifying auxiliary agent and water, the amount of the alkylammonium tosylate is 10 to 40 wt%, the emulsifying aid is 1 to 10 wt% The water is mixed in an amount of 50 to 89% by weight.

When the alkylammonium tosylate coating solution is further mixed with a pH adjusting agent and a defoaming agent, the alkylammonium tosylate is contained in an amount of 10 to 40 wt%, the emulsifying aid is 1 to 10 wt%, the water is more than 49.4 wt% To less than 89 wt.%, The pH adjusting agent is greater than 0 wt.% To less than 0.1 wt.%, And the defoamer is mixed from greater than 0 wt.% To less than 0.5 wt.%.

In the alkylammonium tosylate, the alkyl group preferably has at least one carbon composition within the range of C12-C22. Specific examples thereof include ester quaternary ammonium salts, trialkylammonium salts, polyquaternium, etc. . &Lt; / RTI &gt;

The builder for a solidified material mixed with the alkylaluminum tosylate coating solution for forming a reforming agent composition for grout controlling rheological properties according to the present invention may contain a divalent metal oxide and may be mixed with the alkylammonium tosylate coating solution The water contained in the coating liquid is removed and the coating liquid formed in the liquid phase is pulverized.

At this time, the builder for solidification material may include a mixed powder containing at least one or more bivalent metal oxides which exothermically react with water contained in the alkylammonium tosylate coating solution, A silicon dioxide powder which alleviates an exothermic reaction generated by the mixed powder, an aluminum oxide powder which acts as a quick-setting agent when mixed with the alkylammonium tosylate coating solution and which improves strength when mixed with cement, and And sulfur trioxide powder which prevents the powder from aggregating when mixed with the alkylammonium tosylate coating solution.

Also, in the embodiment of the present invention, the mixed powder is composed of calcium oxide powder and magnesium oxide powder, wherein the builder for the solidified material has 15 to 45% by weight of the silicon dioxide powder, 0.5 to 15% (The specific surface area ㎠ / g, Brain method) of not more than 5.0% by weight, the calcium oxide powder is contained in an amount of 30 to 50% by weight, the sulfur trioxide powder is contained in an amount of 0.5 to 10% .

On the other hand, when the alkylammonium tosylate coating solution and the builder for the solidifying material are mixed, moisture of the bivalent metal oxide and the coating liquid chemically react to evaporate the water naturally by the reaction heat generated or generated. In this case, Is expressed by the following equation (1).

At this time, the condition of heat generation is characterized by being 50 DEG C or higher.

The following Table 1 shows the mixing ratio of the alkylammonium tosylate coating solution for mixing the reforming agent composition powder for grout controlling the rheology characteristic according to the present invention and the builder for solidification material.

Raw material Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Builder 900 850 800 750 700 650 600 550 Coating liquid 100 150 200 250 300 350 400 450 Powder state Good Good Good Good Good Aggregation Aggregation Aggregation

As shown in the above Table 1, it can be seen that the powders in Examples 1 to 5 are in good condition.

The alkylammonium tosylate coating solution may contain more than 0 wt% to 30 wt% of the alkylammonium tosylate coating solution, and the builder for the solidifying material may contain 70 wt% to less than 100 wt% of the builder powder for forming the reforming agent for controlling the rheology characteristics of the grout, .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process diagram for manufacturing a reformer composition powder for grout and a special cement for grout material containing the same, for controlling rheology characteristics according to an embodiment of the present invention. FIG.

As shown in the figure, in a first step, a builder for a solidification material is automatically metered in a separate builder material storage unit 20 for a solidification material with good moisture management, and is input to the primary mixing facility 30. [ According to the quality of the builder for solidification material, the shape of powders to be formed is different, and as the material having high activity is formed, the aggregation phenomenon (ball formation) of the particles is remarkably reduced.

In the second step, the basic amount of the coating liquid stored in the alkylammonium tosylate coating liquid storage unit 10 is slowly added to the primary mixing facility 30 while the mixing mixer is operated to stir the builder with the solidifying material builder.

At this time, there is a difference in the aggregation phenomenon of the particles depending on the coating method, and as the injection liquid is injected, the aggregation of the particles is reduced and the particles are injected at an appropriate pressure.

Here, the mixing ratio of the builder for solidifying material and the alkylammonium tosylate coating solution is important. The lower the ratio of the coating liquid, the easier the solidification is, but the influence of mixing with cement must also be considered.

That is, when the mixing amount of the powder semi-finished product is increased during the production of the special cement for grout, the influence of the factors on the physical properties of the cement becomes large. Therefore, when the alkylammonium tosylate coating solution is added in an amount of 5.0 wt% It should be designed to express sex.

On the contrary, increasing the proportion of the alkylammonium tosylate coating solution makes the pulverization process difficult, and the aggregation phenomenon becomes large. Considering these factors, it is important to determine the mixing ratio when making the special cement for grout material.

On the other hand, strong heating occurs after 5 to 10 minutes after the alkylammonium tosylate coating solution and the builder for the solidifying material are introduced into the primary mixing facility 30, and a part of water in the coating liquid is vaporized by vaporization. If the agitation time is short, the moisture content is large. Therefore, when the special cement for grout material is manufactured, the granules are formed by re-joining after the crushing, and when the agitation time is too long, the strength of the powder particles is increased. It is necessary to adjust the time appropriately until the amount of evaporated steam is remarkably reduced. In the embodiment of the present invention, it is preferably 30 to 60 minutes.

In the third step, the modifier composition powder for grout, which is formed by mixing, is mixed with the cement in the secondary mixing facility 40 through the crusher in the primary mixing facility 30.

At this time, an anticaking agent is added through a separate line in the conveying unit (conveyer), and the reforming composition powder for grout is crushed to a particle size of cement level or higher while passing through the crusher, To produce a special cement for an underwater separable grout material. The special cement for grout material made of powder is stored in a packaging container shielded from moisture.

In addition, when the cement is mixed in the third step, at least one of soil, slag, fly ash, clay, rock powder and waste concrete can be added and mixed The mixed cement is any one of ordinary portland cement (OPC cement), OPC cement / slag (slag cement), OPC cement / fly ash cement, and the thus- And exhibits a moderate separation characteristic.

Meanwhile, the grinder used in the embodiment of the present invention is one of a hammer mill and a pin crusher type, and the mixing mixer (agitator) is selected from a ribbon type mixer and a mill type mixer, The process suitability to mix and the post-mix clean-up process. In general, the ribbon type is easy to mix, but the cleaning process is difficult, and the mill type has a slow mixing speed, and is easy to discharge and clean.

The following Table 2 shows the specific cement for grout materials obtained by mixing the reforming agent composition powder for grout control and the OPC cement (general Portland cement) for controlling the rheology characteristics according to the present invention Mixing ratio.

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 OPC Cement 990 975 960 950 940 930 920 910 Composition powder 10 20 30 40 50 60 70 80 High billing 0  5 10 10 10 10 10 10 Separation of underwater fire Bad Bad Good Good Great Great Great Great Powder state Good Good Good Good Good Good Lump Lump Moisture content Good Good Good Good Good Good plethora plethora

[Table 2] [Table 2] shows the separation of water, powder state and moisture content of the special cement for grout made of the mixture of the result obtained in Example 5 of the above Table 1 and OPC cement.

In Examples 6 to 8 of Table 2, the water separation performance was satisfactory but the water content was excessive due to an increase in the amount of the semi-finished product, so that a cluster phenomenon occurred during storage and distribution, and in Examples 1 to 4 It can be seen that the mixing ratio of Examples 3 to 5 satisfies the quality because there is no aggregation but the water-borne separation performance of the special cement for grout is not satisfied.

Table 3 below shows the mixing ratios constituting the special cement for grout made of high purity and OPC cement / slag for the reformer composition powder for grout controlling the rheological properties according to the present invention.

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 OPC Cement /
Slag 990 975 960 950 940 930 920 910 Composition powder 10 20 30 40 50 60 70 80 High billing 0  5 10 10 10 10 10 10 Separation of underwater fire Bad Bad Good Good Great Great Great Great Powder state Good Good Good Good Good Good Lump Lump Moisture content Good Good Good Good Good Good plethora plethora

Table 3 shows the results obtained in Example 5 of Table 1 and OPC cement / slag (mixing ratio of OPC cement / slag: 10 wt% / 90 wt% to 90 wt% / 10 wt%) The waterblown separation, powder condition and moisture content of the special cement for grout mixes were evaluated.

In the examples 7 and 8 of the above Table 3, the water separation performance was satisfactory but the water content was excessive due to an increase in the use amount of the semi-finished product, so that the accumulation occurred in the storage and distribution process. In Examples 1 and 2 It can be seen that the mixing ratio of Examples 3 to 6 satisfies the quality because there is no aggregation but it does not satisfy the water separation performance of the special cement for grout.

The following Table 4 shows mixing ratios constituting the special cement for grout material comprising the reformer composition powder for grout controlling the rheology characteristic according to the present invention and the OPC cement / fly ash.

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 OPC Cement /
Fly ash 990 975 960 950 940 930 920 910 Composition powder 10 20 30 40 50 60 70 80 High billing 0  5 10 10 10 10 10 10 Separation of underwater fire Bad Bad Good Good Great Great Great Great Powder state Good Good Good Good Good Good Lump Lump Moisture content Good Good Good Good Good Good plethora plethora

The results are shown in Table 4. The results are shown in Table 4. The results are shown in Table 4. The results are shown in Table 4. The results are shown in Table 4. The results are shown in Table 4. TABLE 4 OPC Cement / ) Were evaluated to evaluate the separation of water, powder state and moisture content of special cement for grout materials.

In the case of Examples 7 and 8 of Table 4 above, the water separation performance is satisfactory but the water content is excessive due to an increase in the amount of the semi-finished product, so that a clumping phenomenon occurs in the storage and distribution process. In Examples 1 and 2 It can be seen that the mixing ratio of Examples 3 to 6 satisfies the quality because there is no aggregation but it does not satisfy the water separation performance of the special cement for grout.

As described above, the present invention provides a builder for a solidifying material containing a divalent metal oxide mixed with an alkylammonium tosylate coating solution which is formed in a liquid phase, and is capable of easily pulverizing an alkylammonium tosylate coating solution for controlling rheological properties There is provided an effect of providing a reforming agent composition powder for grout and a special cement for grout material containing the same, which control the rheology characteristic capable of satisfying all the rheological characteristics at the same time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It is within the scope of the present invention that component changes to such an extent that they can be coped evenly within a range that does not deviate from the scope of the present invention.

10: alkylammonium tosylate coating solution storage part 20: builder material storage for solidifying material
30: Primary mixing facility 40: Secondary mixing facility

Claims (8)

An alkylammonium tosylate coating solution comprising an alkylammonium tosylate which imparts and controls the rheology property of the grout material, an emulsifying aid which imparts stock solution stability and low temperature stability, and a liquid phase comprising water to control rheological properties; And
And a builder for a solidifying material which contains a divalent metal oxide and is mixed with the alkylammonium tosylate coating solution to remove moisture contained in the coating solution and to pulverize the coating solution formed into a liquid phase,
The alkylammonium tosylate coating solution is mixed in an amount of more than 0 wt% to 30 wt%, and the builder for a solidifying material is mixed in an amount of less than 70 to 100 wt%
Wherein the alkyl ammonium tosylate is mixed in an amount of 10 to 40% by weight, the emulsifying aid is contained in an amount of 1 to 10% by weight, and the water is mixed in an amount of 50 to 89% by weight.
The method according to claim 1,
A mixed powder containing at least one or more bivalent metal oxides which are in contact with water contained in the alkylammonium tosylate coating liquid and generate an exothermic reaction; and an exothermic reaction generated by the mixed powder when mixed with the alkylammonium tosylate coating solution An aluminum oxide powder which acts as an acute agent when mixed with the alkylammonium tosylate coating solution and improves the strength when mixed with the cement, and a powdery alumina powder mixed with the alkylammonium tosylate coating solution And a sulfur trioxide powder for preventing agglomeration of the reformate, wherein the reformate composition powder for controlling the rheology characteristic
The method of claim 2,
The mixed powder is composed of a calcium oxide powder and a magnesium oxide powder,
The builder for the solidified material may include 15 to 45 wt% of the silicon dioxide powder, 0.5 to 15 wt% of the aluminum oxide powder, 30 to 50 wt% of the calcium oxide powder, and 0.5 to 10 wt% of the sulfur trioxide powder Including,
And the powdery degree is not more than 3500 (specific surface area ㎠ / g, Brain method) and not more than 5.0% by weight. The grout modifier composition powder
delete [2] The method of claim 1, wherein the alkylammonium tosylate coating solution comprises:
a pH adjusting agent for adjusting the pH concentration, and a defoaming agent for defoaming,
Wherein the alkylammonium tosylate is 10 to 40 wt%, the emulsifying aid is 1 to 10 wt%, the water is more than 49.4 wt% to less than 89 wt%, the pH adjusting agent is more than 0 wt% to less than 0.1 wt% Wherein the defoaming agent is mixed in an amount of more than 0% by weight to less than 0.5% by weight. The reforming agent composition powder for controlling the rheology characteristic
3 to 6% by weight of modifier composition powder for grout, controlling the rheological properties formed according to any one of claims 1 to 3 and 5; 94 to 96% by weight of OPC cement; And 0.5 to 1% by weight of an anticorrosive agent. The cement for grouting
3 to 6% by weight of modifier composition powder for grout, controlling the rheological properties formed according to any one of claims 1 to 3 and 5; 94 to 96% by weight of OPC cement / slag (mixing ratio of OPC cement / slag: 10% by weight / 90% by weight to 90% by weight / 10% by weight); And 0.5 to 1% by weight of an anticorrosive agent. The cement for grouting
3 to 6% by weight of modifier composition powder for grout, controlling the rheological properties formed according to any one of claims 1 to 3 and 5; 94 to 96% by weight of OPC cement / fly ash (blend ratio of OPC cement / fly ash: 10 wt% / 90 wt% to 90 wt% / 10 wt%); And 0.5 to 1% by weight of an anticorrosive agent. The cement for grouting

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