WO2011111984A9

WO2011111984A9 - Self-levelling mortar composition using loess stone powder

Info

Publication number: WO2011111984A9
Application number: PCT/KR2011/001600
Authority: WO
Inventors: 김기용
Original assignee: 니오가드 (주)
Priority date: 2010-03-09
Filing date: 2011-03-08
Publication date: 2012-03-08
Also published as: KR100978151B1; WO2011111984A2; WO2011111984A3

Abstract

The present invention relates to a loess-stone self-levelling mortar composition obtained by the ideal blending of a loess-stone powder having a particle size of no more than 0.1 mm and a cement, and the loess-stone powder mortar composition of the present invention is one in which from 75 to 55 percent by weight of loess-stone powder is mixed with from 25 to 45 percent by weight of a cement mixture consisting of from 30 to 50 percent by weight of ultra-rapid-hardening cement, 2 percent by weight of a polymelamine sulphonate plasticiser and from 68 to 48 percent by weight of a cement. One feature of the present invention is that it can maximise the effects of the action of loess stone and at the same time can simultaneously satisfy requirements for a high-strength binder action and a rapid-hardening action due to the cement mixture containing the ultra-rapid-hardening cement, while a second feature is that a plaster can be made by adding 33 percent by weight of water to the loess-stone powder self-levelling material and can be coated onto an interior floor surface in such a way that the mortar becomes level of its own accord and hence there is no need for separate trowel-based plastering work, and thus a flooring material can be provided which is easy to work with, is useful in environmentally friendly/healthy living environments by bringing out the useful effects of loess stone to the maximum extent even when the smoothness of the floor is uniform, and which satisfies the physical requirements sought from interior flooring materials.

Description

Self-leveling mortar composition using loess powder

The present invention is ideally blended cement mixture containing cemented carbide, fluidizing agent and general cement and ocherite powder to meet the physical properties required of the interior floor of the building while using the ocherite powder to express the useful effect of the ocherite as possible It relates to a leveling mortar composition.

Loess rock refers to loess rocks in which deposited or stacked loess is solidified by pressure for hundreds of millions of years. In order to help the understanding of the present invention looks at the loess.

Ocher is a high-molecular sediment, which contains numerous minerals such as silica, alumina, iron, magnesium, sodium, and cary. If pure ocher's physical properties, ocher is coarse and more viscous than kaolin or clay, it has light yellow or pink color. It is a mineral that is very beneficial to the human body by emitting a large amount of microorganisms, far infrared rays and anions that are beneficial to the human body.

In particular, the loess of our country consists of yellow sand that has been flying for hundreds of thousands of years from mainland China, and its components include catalase, diphenol oxidase, saccharase, and protease. It is responsible for degrading power, fertilizer and purification.

In particular, catalase is known to show the highest activity among the elements of soil at present, and this enzyme removes hydrogen peroxide, which provides toxins to organisms, and plays a role in creating proper soil environment for living organisms. In the metabolism process, toxic lipid peroxide occurs during aging, and if it is put into high quality loess, it is known to have the effect of inhibiting aging by neutralizing and diluting lipid peroxide, which is a toxin in the body, with strong absorption power of soil. .

The specific action and efficacy of ocherite are as follows.

(1) Natural ocherite is known to bring out the above-mentioned heat, so that the head is cold and the feet are warm.

(2) 1 g of ocher contains 200 million microorganisms that are beneficial to the human body, and it is also referred to as a living and breathing ocher stone. A large amount of far-infrared rays emitted from ocher stone penetrates the skin tissue of the human body and promotes cell activation. It is useful for preventing, promoting blood circulation, relieving stress, skin care, neuralgia, back pain, and chronic fatigue recovery.

(3) Natural loess is absorbed when the humidity is high and divergent when dried.

(4) Since natural ocherite has an anion release effect, modern buildings are actively using ocher and ocherite as building materials to block toxins and environmentally harmful substances in cement, and in some applications, the most suitable moisture for maintaining body temperature. Providing a pleasant living environment by maintaining (compatibility).

(5) Natural loess has a deodorizing ability to deodorize various odors such as toilet odor, food smell, tobacco smell, as well as circulating air due to fine pore distributed in loess.

(6) Natural ocherite can suppress the fungus and habitat of various fungi harmful to human body.

(7) Natural ocherite can act to neutralize lipid peroxide, which is bad for human body, and improve the constitution of human body.

(8) Natural ocherite has fine pores in the particles to provide excellent heat insulation and insulation, as well as a relatively warm and soft texture. In addition, loess stone has a higher heat storage rate and a lower thermal conductivity, and thus has a higher heat preservation rate than a cement floor plate. Thus, when ocher stone is used as a flooring material in a room, heating efficiency can be greatly improved and heating costs can be reduced.

Unlike ordinary stone, ocher stone can feel warm without being cool. Also, ocher stone is excellent in decorability because the sediment layer formed by sediment is similar to wood grain pattern.

(9) Ocherite is a very weak "+" electricity in the air, the various aspects (ions) are floating around, ocherite is a "-" electricity, so a slight "+" electricity that causes static electricity and a slight "-" electricity of ocher It is neutralized to prevent static electricity.

As discussed above, the problems that were not developed despite the excellent characteristics of ocherite were developed mainly on ore, but ocherite is easily broken due to low hardness due to low hardness, so it can be used as a large size slab or plate (mat). Due to the difficult and expensive background, it is used as a building material.

On the other hand, general cement self-leveling mortar is currently difficult to level the entire large area even after laying concrete after laying concrete in general building, so PVC vinyl after applying 3 ~ 5 mm using self-leveling technology using gravity and curing It is used by installing flooring material or floor ring.

In general, self-leveling mortars have been used as flooring for buildings and office buildings, but they cannot be used for heating such as the apartments we pursue. Systems such as foam concrete, which are already flattened in the apartment, are already self-leveling, so there is no need for a separate self-leveling material.

In addition, the self-leveling material is used a certain amount of a variety of adhesives to improve the adhesive force, these are difficult to apply to the apartment because the binder contained therein generates VOC (volatile organic compounds) during heating.

Currently used in general, the flooring remittal mortar is a time-consuming and skillful construction that makes the floor evenly flat, even if it causes problems such as sick house syndrome due to harmful factors included in the floor and cement. As time passes, cracking increases in the mortar which is condensed during the hardening process.

In addition, the problem of cracking cement mortar has been studied to prevent cracking by using expansion material or mixing fiber in mortar. However, no reliable crack prevention flooring method has been proposed yet, and self-leveling flooring is a special floor. It is only used in a limited way and cannot be generalized.

In order to prevent the cracking of the conventional mortar mortar has been introduced in detail in the Republic of Korea Patent Publication Nos. 86-3174 and 93-2271 for a method of manufacturing a mortar mixing a specific metal powder, such as aluminum powder or copper powder.

In addition, Korean Patent Publication Nos. 85-1252 and 94-8510, and Japanese Patent Publication No. 57 for premixed cement-based self-smooth floor compositions in which various mixtures are mixed with a mixture of cement, gypsum, and fly ash in advance. -92558, SO58-41746, and SO60-195046, which do not have sufficient control of cracking due to insufficient gypsum reactions and bleeding and latency due to the delay hardening of the fly ash. There are problems such as increased latency and delay in subsequent processes.

In addition, a self-leveling loess mortar composition for buildings made of loess which is distributed in nature other than loess stones has been proposed (Patent Publication No. 10-1998-0084111 publication date: 1998.12.05). The mortar composition is characterized by consisting of 20 to 60 parts by weight of lime, 60 to 120 parts by weight of aggregate and 3 to 5 parts by weight of admixture with respect to 100 parts by weight of ocher.

However, as the lime content of the composition ocher mortar component increases, the hardness of the lime is significantly lower than that of the general remittal, and in particular, the thermal conductivity is inferior. Therefore, it is used for some floors or walls of buildings where heating water circulation pipes are not installed.

As described above, the ocherite self-leveling mortar composition of the present invention that solves the defect of the cement mortar used in the floor or the wall of the residential building, and ideally combines the natural efficacy and action of ocherite and the physical characteristics of the cement I would like to suggest.

The present invention is to solve the problems as described above, an object of the present invention is to use the indoor flooring by processing the bottom surface of the room in the form of ocher stone powder particle size ocher or less particle diameter of 0.1mm or less to utilize indoor flooring, which is useful for environment-friendly and health To create a living environment, it is ideal to mix ocherite powder with cement mixture containing cemented carbide cement, fluidizing agent, and general cement to meet the physical properties of the interior floor of the building, and to have the useful effect of ocherite. It is to provide a self-leveling mortar composition using the loess powder to be expressed as possible.

Existing self-leveling materials have a compressive strength of 12 N / mm 2 or less, which is less than 20 N / mm 2 of KS standard flooring materials. In addition, there is no application of apartments because of the continuous release of VOCs.

This is achieved by using a cement mixture made by mixing cemented carbide 30 ~ 50% by weight, self-leveling material 2% by weight, and general cement 68 ~ 48% by weight, and yellow clay powder self-leveling mortar containing 0.1mm or less loess powder. N / mm2 or more, adhesion strength 0.8 N / mm2 or more, no impact resistance, VOC is not generated during heating, and at the same time, it removes VOC emitted from interior interior materials, and yellow clay powder self-leveling flooring which saves heating energy. To provide.

Means for implementing a self-leveling mortar composition using loess powder according to the present invention, cement cement consisting of ultrafast cement 30 ~ 50% by weight, fluidizing agent polymelamine sulfonate 2% by weight, cement 68 ~ 48% by weight It can be implemented by the loess powder mortar composition mixed with 25 to 45% by weight of the mixture, and 75 to 55% by weight of loess powder having a particle diameter of 0.1 mm or less.

The fluidizing agent strongly disperses the cement particles to make the self-leveling material mortar form a horizontal plane, thereby ensuring smooth workability without the need for finishing. By using cement mixtures containing 30 to 50% by weight of cemented carbide, the mortar mixed with ocher powder can significantly increase the three-day curing strength above 20 N / mm2 of flooring material KS standard.

Three-day curing strength is very important, as subsequent flooring work usually takes place within two to three days after the installation of self-leveling floors. Usually gravel is essential to maintain performance above 20 N / mm2 compressive strength. General self-leveling material made of powder without gravel has a compressive strength of about 12 N / mm 2.

By using cement mixture containing cemented carbide cement in general cement, compressive strength of 20 N / mm2 and adhesion strength of 0.8 N / mm2 or more can be maintained even in mortar state consisting of loess powder, which does not contain gravel-like components such as loess granules. It is. It is the heart of the present invention. The three-day strength is 340 N / mm2 and the 28-day strength is 375 N / mm2 for general concrete manufactured by Union Co., Ltd. and using 100% of commercially available superhard cement. In Korea, it is a general-purpose material used to manufacture cemented carbide cements from unions and ssangyong cements.

According to the present invention, the present invention can not only provide a heating indoor flooring material that can greatly reduce the heating cost by the heat preservation ability (thermal effect) expressed in the loess through the ideal mixing ratio of cement and loess powder, VOC, It can improve harmful residential environment such as atopy, various dermatitis, and sick house syndrome, and can be used as a useful building material with the required properties of the building floor.

Therefore, in the present invention, even if no additional plastering work is performed in the construction of the building floor, the flooring can be constructed with a uniform smoothness by the self-leveling action, and the heating cost is excellent due to the excellent heat storage rate and heat preservation ability of the loess. It can greatly reduce, neutralize the lipid peroxide, improve the constitution of the human body, and will be very useful in realizing an environment-friendly pro-health living environment by inhibiting the growth of mold or bacteria.

Conserving energy will greatly contribute to global CO2 reduction efforts, and will play a decisive role in the low carbon green growth that the Korean government leads and promotes the world. By widespread use of the present invention, new demands can be created and new jobs can be created, so the ripple effect will be very large. Invisible intangible ramifications by promoting national health will be indescribable.

The present invention will play a large part in protecting the earth by contributing to the promotion of human health and reducing CO2 by not only being used in the Republic of Korea but also by everyone in the world. Import and export of general cement mortar is limited, but the self-leveling mortar is imported from Germany's Henkel company and installed. Because of the ease of construction without additional plastering, the import and export of the world is very free.

Figure 1 (a) and (b) is a photograph showing the flow (flow value) of the sample 1-3 and the sample 3 according to the present invention on the sample plate,

Figure 2 (a) and (b) is a photograph of the mortar of the sample 1-3 according to the present invention and the sample 3 compared to the present invention on a sample plate,

3 is a test scene of the VOC emission amount during heating of Sample 3 and Sample 1-3 according to the present invention (left: general S / L, right: ocher powder S / L),

4 is a test photograph of the VOC tester ppbRAE 3000 which is doing VOC emission test during heating of Sample 1-3 according to the present invention;

5 is a compressive strength test report of the sample 1-1 according to the present invention,

6 is a compressive strength test report of the sample 1-2 according to the present invention,

7 is a compressive strength test report of Sample 1-3 according to the present invention,

8 is a compressive strength test report of Samples 1-4 according to the present invention;

9 is a compressive strength test report of the sample 1-5 according to the present invention,

10 is a compressive strength test report of Samples 1-6 according to the present invention,

11 is a test report of the adhesion strength of the sample 1-1 according to the present invention,

12 is a test report of the adhesion strength of the sample 1-2 according to the present invention,

13 is a test report of the adhesion strength of Sample 1-3 according to the present invention,

14 is a test report of the adhesion strength of the sample 1-4 according to the present invention,

15 is a test report of the adhesion strength of the sample 1-5 according to the present invention,

16 is a test report of the adhesion strength of the sample 1-6 according to the present invention,

17 is a test report of impact resistance of Samples 1-1 to 1-5 according to the present invention,

18 is a test report of impact resistance of Samples 1-5 to 1-6 according to the present invention;

19 is a compressive strength test report of Sample 2-1 according to the present invention,

20 is a compressive strength test report of the sample 2-2 according to the present invention,

21 is a compressive strength test report of Sample 2-3 according to the present invention,

22 is a compressive strength test report of the sample 2-4 according to the present invention,

23 is a compressive strength test report of the sample 2-5 according to the present invention,

24 is a compressive strength test report of Samples 2-6 according to the present invention;

25 is a compressive strength, adhesion strength, impact resistance test report of Sample 3-1 in preparation for the present invention,

26 is a compressive strength, adhesion strength, impact resistance test report of the sample 3-2 compared to the present invention,

FIG. 27 is a compressive strength test report of Samples 4-1 to 4-4 in accordance with the present invention.

28 is a compressive strength test report of Samples 4-4 to 4-6 compared to the present invention,

29 is a test report for the adhesion strength of Samples 4-1 to 4-3 in accordance with the present invention.

30 is a test report for the adhesion strength of Samples 4-4 to 4-4 in accordance with the present invention.

31 is a test report of impact resistance of Samples 4-1 to 4-5 compared to the present invention,

32 is a test report of impact resistance of Samples 4-5 to 4-6 compared to the present invention,

33 is a test (flow value) test report of Sample 1-1 according to the present invention;

34 is a test report (flow value) of the sample 1-2 according to the present invention;

35 is a after-flow test report of Samples 1-3 according to the present invention;

Figure 36 is a (test flow) test report of the samples 1-4 according to the present invention,

37 is a test (flow value) test report of Samples 1-5 according to the present invention;

Figure 38 is a (test flow) test report of Samples 1-6 according to the present invention,

39 is a subsequent (flow value) test report of the general self-leveling mortar,

40 is a bottom temperature measurement test report of the sample 3 prepared in accordance with the present invention

41 is a graph of measuring the bottom temperature of Sample 3 in comparison with the present invention;

42 is a bottom temperature measurement test report of the sample 1-3 according to the present invention,

43 is a bottom temperature measurement graph of Samples 1-3 according to the present invention;

44 is a thermal image measurement test report of Sample 3 and Sample 1-3 according to the present invention,

45 is a thermal imaging photograph measured after initial and 10 minutes of Sample 3 and Sample 1-3 according to the present invention,

46 is a thermographic photograph taken after 20,40 minutes of Sample 3 and Sample 1-3 according to the present invention,

47 is a thermographic photograph taken after 60,80 minutes of Sample 3 and Sample 1-3 according to the present invention,

48 is a thermographic photograph of 100,120 minutes of elapsed measurement of Sample 3 and Sample 1-3 according to the present invention;

49 is a VOC (Volatile Organic Compound) Emission Test Report of Sample 3 prepared according to the present invention;

50 is a graph showing the VOC (Volatile Organic Compound) emission amount of each sample 3 prepared in accordance with the present invention;

51 is a VOC (Volatile Organic Compound) Emission Test Report of Samples 1-3 according to the present invention;

52 is a graph showing the VOC (Volatile Organic Compound) emission amount of each sample 1-3 according to the present invention.

53 is a far-infrared emission rate test report of the sample 3 compared to the present invention,

54 is a far infrared ray emission rate graph 1 of Sample 3 compared to the present invention;

55 is a far infrared ray emission rate graph 2 of Sample 3 compared to the present invention;

56 is a far-infrared emission rate test report of Samples 1-5 according to the present invention;

57 is a far infrared ray emission rate graph 1 of Samples 1-5 according to the present invention;

58 is a far infrared ray emission rate graph 2 of Samples 1-5 according to the present invention;

59 is a far-infrared emission test report of the sample 1-3 according to the present invention,

60 is a far-infrared emission rate graph of Samples 1-3 according to the present invention;

61 is a far infrared ray emission rate graph of Samples 1-3 according to the present invention;

62 is a deodorization rate test report of the sample 3 compared to the present invention,

63 is a deodorization rate graph of Sample 3 compared to the present invention,

64 is a deodorization rate test report of the sample 1-5 according to the present invention,

65 is a deodorization rate graph of Samples 1-5 according to the present invention;

66 is a deodorization rate test report of the sample 1-3 according to the present invention,

67 is a graph of deodorization rate of Samples 1-3 according to the present invention.

Hereinafter, the self-leveling mortar composition using the loess powder according to the present invention will be described in detail.

In order to confirm the physical and chemical properties of the loess powder self-leveling mortar composition according to the present invention, samples 1-1 to 1-6 were prepared in the same size under the same conditions. It was.

Among the constituents employed in the present invention, ocherite is used by crushing the rock in the form of rock, and the fluidizing agent is PNS-Naphthalene type PMS-melamine type PC-polycarboxylic acid type (PC-Polycarbonate type) may be employed, and the present invention has been exemplified as employing PMS-melamine-based polymelamine sulfonate.

The fluidizing agent strongly disperses the cement particles to make the self-leveling material mortar form a horizontal plane, thereby ensuring smooth workability without the need for finishing. By using cement mixtures containing 30 to 50% by weight of cemented carbide, the mortar mixed with ocher powder can significantly increase the three-day curing strength above 20 N / mm2 of flooring material KS standard. Three-day curing strength is very important, as subsequent flooring work usually takes place within two to three days after the installation of self-leveling floors. Usually gravel is essential to maintain performance above 20 N / mm2 compressive strength. The general self-leveling material without gravel has a compressive strength of 12 N / mm 2, and the general compressive strength of remital mortar is about 15.8 N / mm 2. By using cement mixture in which cemented carbide cement is mixed with general cement, compressive strength of 20 N / mm2 can be maintained even in powder state. It is the heart of the present invention.

When water is added to the loess self-leveling mortar according to the present invention to prepare the sample by making mortar, water may affect other compositions (ocher powder, cement, fluidizing agent), for example, curing time of the sample, The amount of water added to each sample was fixed at a constant rate to determine the exact performance of each sample because it could affect compressive strength and flowability.

In addition, when the mixing ratio of the loess powder increases, the emissivity of far infrared rays or anions increases, but the compressive strength, the adhesion strength and the impact resistance decrease, and conversely, the compressive strength and adhesion when the cement mixed in the loess powder is relatively added Since the strength and impact resistance are increased and the far-infrared ray or anion emissivity is reduced, the present invention aims to derive the mixing ratio of the loess powder and the cement so that the strength of the cement is expressed to the maximum while expressing the action and efficacy of the ideal loess powder. .

Sample 1-1 is a cement mixture consisting of 30% by weight cemented carbide, 2% by weight of polymelamine solphonate, 68% by weight of cement, and a loess powder mixture mixed with 20% by weight of the cement mixture and 80% by weight of loess powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 1-2 is a cement mixture consisting of 30% by weight cemented carbide, 2% by weight of polymelamine solphonate, 68% by weight cement, and a mixture of 25% by weight of the cement mixture and 75% by weight of loess powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 1-3 is a cement mixture composed of 30% by weight cemented carbide, 2% by weight of polymelamine solphonate, 68% by weight cement, and a mixture of red clay powder mixed with 30% by weight of the cement mixture and 70% by weight of loess powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 1-4 is a cement mixture consisting of 30% by weight cemented carbide, 2% by weight of polymelamine solphonate, 68% by weight cement, and a mixture of 35% by weight cement mixture and 65% by weight loess powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 1-5 is a cement mixture consisting of 30% by weight cemented carbide, 2% by weight of polymelamine solphonate, 68% by weight cement, and a mixture of 45% by weight of the cement mixture and 55% by weight of ocher powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Samples 1-6 were cement mixtures composed of 30% by weight cemented carbide, 2% by weight of polymelamine solphonate, 68% by weight cement, and a mixture of 50% by weight of the cement mixture and 50% by weight of ocher powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 2-1 is a cement mixture consisting of 50% by weight cemented carbide, 2% by weight of polymelamine solphonate, 48% by weight of cement, and a loess powder mixture mixed with 20% by weight of the cement mixture and 80% by weight of loess powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 2-2 is a cement mixture consisting of 50% by weight cemented carbide, 2% by weight of polymelamine solphonate, 48% by weight cement, and a mixture of 25% by weight of the cement mixture and 75% by weight of loess powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 2-3 is a cement mixture consisting of 50% by weight cemented carbide, 2% by weight of polymelamine solphonate, 48% by weight of cement, and a loess powder mixture mixed with 30% by weight of the cement mixture and 70% by weight of loess powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 2-4 is a cement mixture composed of 50% by weight cemented carbide, 2% by weight of polymelamine solphonate, 48% by weight of cement, and a mixture of 35% by weight of the cement mixture and 65% by weight of ocher powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 2-5 is a cement mixture composed of 50% by weight cemented carbide, 2% by weight of polymelamine solphonate, 48% by weight of cement, and a mixture of 45% by weight of the cement mixture and 55% by weight of loess powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 2-6 is a cement mixture composed of 50% by weight cemented carbide, 2% by weight of polymelamine solphonate, 48% by weight of cement, and a mixture of 50% by weight of the cement mixture and 50% by weight of ocher powder. A mortar prepared by mixing 33 parts by weight of water with 77 parts by weight is prepared.

Sample 3-1 manufactured mortar mixed with 77 weight part of general self-leveling material mortar at 33 weight part of water.

Sample 3-2 produced mortar mixed with 77 parts by weight of general remittal mortar with 33 parts by weight of water.

Sample 4-1 is a mortar prepared by mixing 33 parts by weight of water with 77 parts by weight of a mixture of 85% by weight of yellow clay powder and 15% by weight of general cement.

Sample 4-2 is a mortar prepared by mixing 33 parts by weight of water with 77 parts by weight of a mixture of 75% by weight of yellow clay powder and 25% by weight of general cement.

Sample 4-3 is a mortar prepared by mixing 33 parts by weight of water with 77 parts by weight of a mixture of 70% by weight of yellow clay powder and 30% by weight of general cement.

Sample 4-4 is a mortar prepared by mixing 33 parts by weight of water to 77 parts by weight of a mixture of 65% by weight of yellow clay powder and 35% by weight of general cement.

Sample 4-5 is a mortar prepared by mixing 33 parts by weight of water with 77 parts by weight of a mixture of 55% by weight of yellow clay powder and 45% by weight of general cement.

Sample 4-6 is a mortar prepared by mixing 33 parts by weight of water with 77 parts by weight of a mixture of 50% by weight of yellow clay powder and 50% by weight of general cement.

Common self-leveling composition grading criteria are as follows.

Table 1

General self-leveling mortar composition grading criteria

Item	Flow value (flowability) mm	Setting time		Flexural StrengthN / mm ²	Compressive strength N / mm ²	Adhesion Strength N / mm ²	Impact resistance	Length change rate%	Abrasion Resistance mg / mm ²
		First	closing
General purpose	More than 180	More than 1 hour	Within 15 hours	-	20 or more	0.8 or more	Free from cracking and peeling	± 0.05	-
Industrial	190 or more			6.0 and above	28 or more	1.2 or more			0.15 or less

The ocherite self-leveling mortar composition according to the present invention is a target value of more than the numerical value of the above [Table 1], the test method and the sample conditions according to it are as follows.

(1) Compressive strength test method was tested using a compressive strength tester (TONI.300kN). The mortar is molded using a metal mold having an inner dimension of 50 x 50 x 50 mm, and cured for 24 hours at a temperature of 20 ± 3 ° C. and a humidity of 50% by weight or more, and then mortar is cured in the air for 3 days after demolding.

(2) Test method for adhesion strength

Bond strength test method was tested by KS F 4041: 2004 test method, and mortar was molded by using metal mold of inner dimension 70 X 70 X 20mm, curing for 24 hours under the condition of temperature 20 ± 3 ℃ and humidity 50% by weight or more. After mortar, the mortar is cured in the air for 3 days.

(3) Impact resistance test method

The impact resistance test method was tested by KS F 4041: 2004 test method for the test base plate cured in the curing room for 3 days by removing dirts and deposits on the surface of the product conforming to KS F 4001 with a wire brush or cloth. .

(4) Flow test is to make a 5cm diameter pipe on the sample plate, insert it into 100g of plaster, remove the pipe in the vertical direction, and divide the diameter of the plaster spread radially outward by 120 degrees. The mean value of the diameters at one point was obtained. Figure 1 (a) is a photograph after the mortar according to the invention on the sample plate, Figure 1 (b) is a photograph after the mortar of the general cement self-leveling material compared to the present invention. 2 (a) and 2 (b) are photographs of the floor of the present invention and a general self-leveling material.

Test report of Samples 1-1 to 1-6 and Samples 2-1 to 2-6 of the present invention and Samples 3-1 to 3-2 and Samples 4-1 to 4-6 compared to the present invention. Test report is specified in [Table 2], [Table 3] and [Table 4].

[Revision 11.05.2011 under Rule 26]
TABLE 2

TABLE 3

Test report

division	Test Items	Result	Test Methods
Sample 4-1 (85 wt% powder, 15 wt% general cement)	Compressive strength (N / mm ² )	7.4	1. Compressive strength test method: compressive strength tester (TONI.300kN) 2. Test method for adhesion strength KS F 4041: 20043. Test method for impact resistance: KS F 4041: 2004 Note: The results of each sample are the average of three samples per sample.
	Adhesive strength (N / mm ² )	0.46
	Impact resistance	clear
Sample 4-2 (75 wt% powder, 25 wt% general cement)	Compressive strength (N / mm ² )	12.9
	Adhesive strength (N / mm ² )	0.56
	Impact resistance	clear
Sample 4-3 (70 wt% powder, 30 wt% general cement)	Compressive Strength (N / mm ²⁾	15.3
	Adhesive strength (N / mm ² )	0.63
	Impact resistance	clear
Sample 4-4 (65 wt% powder, 35 wt% general cement)	Compressive strength (N / mm ² )	15.1
	Adhesive strength (N / mm ² )	1.17
	Impact resistance	clear
Sample 4-5 (55 wt% powder, 45 wt% general cement)	Compressive strength (N / mm ² )	18.9
	Adhesive strength (N / mm ² )	0.5
	Impact resistance	clear
Sample 4-6 (50 wt% powder, 50 wt% general cement)	Compressive strength (N / mm ² )	21.8
	Adhesive strength (N / mm ² )	1.13
	Impact resistance	clear

Table 4

Flow (flow value)

division	Test Items	Result	Test Methods
Sample 1-1 (85% by weight, 15% by weight cement) containing 30% by weight	Flow value (mm)	188	1. Test method for flow value: KS F 4041: 2004 Note: The results of each sample are the average of three samples per sample.
Sample 1-2 (75% by weight powder, 25% by weight cement) 30% by weight super fast diameter)	Flow value (mm)	184
Sample 1-3 (70% by weight powder, 30% by weight cement) 30% by weight	Flow value (mm)	195
Sample 1-4 (65 wt% powder, 35 wt% cement) containing 30 wt% of super fast diameter	Flow value (mm)	203
Sample 1-5 (55 wt% powder, 45 wt% cement) containing 30 wt% of super fast diameter	Flow value (mm)	227
Sample 1-6 (50 wt% powder, 50 wt% cement) containing 30 wt% of super fast diameter	Flow value (mm)	220
General self-leveling mortar	Flow value (mm)	221

Comparing the above test reports of [Table 2], [Table 3] and [Table 4] with [Table 1] grade standard, when the mixing ratio of cement mixture increases, that is, from Sample 1-1 to Sample 1-6 It can be seen that the compressive strength and the adhesion strength are high and the impact resistance is all abnormal, and the flow value is increased. It can be seen that the compressive strength increases from Sample 2-1 to Sample 2-6, and that the compressive strength results above the grading criteria are shown from Sample 2-2.

Among the samples having different mixing ratios of cement mixture containing 30% superhard cement according to the present invention and ocher powder, the samples whose compressive strength falls within the standard range are Sample 1-2 to Sample 1-6, and the adhesion strength is Sample 1 It has been confirmed that -2 to Sample 1-6 and impact resistance are all abnormal in Samples 1-1 to 1-6.

In addition, among samples having different mixing ratios of cement mixture containing 50% cemented carbide cement according to the present invention and ocher powder, the samples whose compressive strengths correspond to the range of grades are sample 2-2 to sample 2-6.

On the other hand, Sample 3-1, which is a general self-leveling material mortar, has an adhesive strength of more than the standard but compressive strength of 12.03 N / mm2, which is less than the standard of 20 N / mm2 of flooring compressive strength. The compressive strength of general remical mortar is 15.8 N / mm 2 and below the flooring standard.

In addition, only samples 4-6 having a compressive strength corresponding to a grade reference range among samples having different mixing ratios of general cement and loess powder compared to the present invention.

Comprehensive interpretation of the above test results, useful composition ratio of the loess powder self-leveling mortar composition according to the present invention is 30 to 50% by weight cemented cement, 2% by weight of a fluidizing agent (poly melamine solfonate), 68 to 48 weight of cement It can be seen that the grade that satisfies the grading criteria can be obtained from 25 to 45 wt% of the cement mixture and 75 to 55 wt% of the loess powder.

Far-infrared rays and deodorization rate were also most ideal in the above composition range, and during heating, thermal images showed higher temperatures than floors with ocherite powder self-leveling materials. The result of direct thermometer measurement showed that the floor constructed with ocherite powder salp leveling material had high temperature and maintained high temperature even after cooling down after cooling down.

On the other hand, the amount of VOC (volatile organic compound) generated during heating was measured with a ppbRAE 3000 tester capable of measuring from 0 ppb. As shown in Fig. 3, the ppbRAE 3000 tester was placed in a closed space until 40 minutes of heating. In terms of VOC emission, samples 1-3 of loess powder self-leveling material was 345-378 ppb and sample 3-1 general self-leveling material increased to 1,080 ppb after 40 minutes of heating. At this time, the measured VOC value in the laboratory indoor atmosphere was 400 to 410 ppb. That is, the general self-leveling material contains a lot of binders, and thus emits VOC continuously, so it can be seen that it is not suitable as a flooring material for heating inside the apartment.

Samples 1-3 of loess powder self-leveling material was found to be rather low at 345-378 ppb until the laboratory room was 400-410 ppb or 40 minutes heating. In other words, the VOC (volatile organic compound) does not come out during heating, it can be seen that serves to remove the VOC existing in the room.

The present inventors further subdivid the composition ratio of 25 to 45% by weight of the cement mixture as described above, and 75 to 55% by weight of the loess powder, and then test the samples subdivided by the test method as described above. It is an optimal optimum condition that satisfies physical properties such as strength and impact resistance, and far-infrared emission rate and deodorization rate. It can be seen that the ocherite self-leveling mortar mixed with 30% by weight cement mixture consisting of 68% by weight cement and 70% by weight loess powder showed the best results.

As described above, the loess powder mortar composition of the present invention is self-leveling itself by pouring an appropriate amount of water and kneading the floor surface of the building in the same manner as the method of pouring water into a common commercial remittal kneading After a certain period of time, the floor surface becomes flat due to the action, and the surface can be constructed with a flat surface. The cured floor has an ocher color and can be constructed with the required properties on the indoor floor of the building. Can be.

In addition, the present invention can reduce the heating energy of the floor, as well as far-infrared rays are good for health and have good antibacterial and anti-mold performance and deodorizing ability to prevent or reduce the occurrence of odor can greatly improve the indoor living environment. In particular, it is useful to prevent the development of atopic dermatitis or to improve the condition of the atopic patient. It is also known as the sick house syndrome, that is, various volatile organic compounds (VOCs), formaldehyde (HCHO) and other toxicities that occur in indoor interior materials. By suppressing or reducing the generation of substances, it is possible to create a pleasant room that is environmentally friendly and beneficial to pro-health.

Claims

Ultra-fast cement 30 to 50% by weight, 2% by weight of polymelamine solphonate fluidizing agent, 25 to 45% by weight of cement mixture consisting of 68 to 48% by weight of cement, 75 to 55% by weight of yellow clay powder with a particle diameter of 0.1mm or less Self-leveling mortar composition using ocher powder, characterized in that consisting of ocher powder mixture.
The method of claim 1,

30% by weight cemented carbide, 30% by weight of fluidizing agent polymelamine solphonate, 68% by weight of cement, and 70% by weight of ocherite powder of 0.1 mm or less. Self-leveling mortar composition using ocher powder.