KR101509668B1 - Block of yellow siol and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a loess block and a method for producing the loess block. More particularly, the present invention relates to a loess block, Mixing an inorganic additive formed by mixing a calcium sulfoaluminate mineral with lime, gypsum and a gypsum flour into the loess powder, sand and water to form a loess mixture; Compressing the yellow mortar mixture in the form of a block by vibrating the press mold while vibrating left and right while vibrating the press mold at an upper portion thereof; And delivering the molded product from a press mold. [0002] The present invention relates to an ocher block and a method of manufacturing the same.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a yellow loess block,

The present invention relates to a loess block and a method for producing the loess block. More particularly, the present invention relates to a loess block, Mixing an inorganic additive formed by mixing a calcium sulfoaluminate mineral with lime, gypsum and a gypsum flour into the loess powder, sand and water to form a loess mixture; Compressing the yellow mortar mixture in the form of a block by vibrating the press mold while vibrating left and right while vibrating the press mold at an upper portion thereof; And delivering the molded product from a press mold. [0002] The present invention relates to an ocher block and a method of manufacturing the same.

Generally, the forming process of the press block, which is one example of the building and civil engineering use block, is to form a pigment and pigment layer on the mold, insert the cement and mortar into the mold, , Rollers), and a mold plate with a heavy mortar is made and put into a presser, and pressure is applied to take a press block. As described above, the conventional press block is used as a main component of the cement. The cement is formed by blending water with sand, gravel and the like, which are raw materials of inorganic materials, and curing or pressurizing for a predetermined period to produce a product having a constant strength .

These cements have the dysfunctional property that the strong alkaline property puts burden on the environment. In the sintering process, the waste tires and various specific wastes can be burned at the same time for the purpose of thermal efficiency and fuel saving so that various kinds of harmful substances can be contained. It is combined with the silica component in the aggregate to form an alkali silica gel.

Although calcium hydroxide in concrete using cement may come into contact with carbon dioxide gas in the air and gradually change into calcium carbonate, concrete may exhibit neutralization in which it becomes loss of alkalinity, but rust is generated in the process of neutralization, And cracks are generated in the inside of the concrete, resulting in problems such as deterioration of adhesion strength with the reinforcing steel, peeling of the covering concrete, and reduction of the resistance moment due to reduction of the reinforcing steel cross-sectional member.

To solve such a problem, Korean Patent Registration No. 10-1273777 discloses "a method for producing an ocher block ".

The above loess block is passed through a 100-mesh network for crushed loess to produce loess particles (S101 to S102); (S103) mixing at least one selected from the group consisting of elvan, sericite, germanium, chalcopyrite and tourmaline of 0.15 mm or less in size to the loess particles by a mixer for 5 to 10 minutes to produce a mixture (S103); (S104 to S105) adding a functional additive of liquid or powder to the mixture, adding kneading water thereto, kneading the mixture for 5 to 10 minutes with an agitator, and then producing a green body; The greenhouse is put into a stomacher, extruded in a vacuum to a length of 40 to 60 mm, and cut to lengths of 15 to 25 mm to produce yellow clay blocks 100a to 100c (S 106); (S107 to S108) high temperature baking of the loess blocks (100a to 100c) at a temperature of 1,100 to 1,300 ° C for 10 to 14 hours through natural drying for 10 to 14 hours at room temperature; And a step (S109) of polishing the roughness of the surface 110 to 0.1 to 0.5 mm by putting the loess blocks 100a to 100c into a polishing machine and introducing an abrasive material (S109), and using the environmentally friendly loess Thereby making it possible to solve the problem that occurs when a block is conventionally manufactured using cement.

However, the above-mentioned loess block is fired at a high temperature to produce a product (S107 to S108). When the product is produced by baking at such a high temperature, environmental pollution due to atmospheric gas discharge is caused. Economical efficiency and competitiveness are decreased.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a loess block which can produce a block by using loess which is an eco-friendly material and can secure uniformity and strength while omitting a firing operation.

In order to achieve the above object, the present invention provides a method for producing a green loam, comprising the steps of: (S1) drying and crushing natural loess to form loess powder; 62 to 69 parts by weight of sand, 22 to 28 parts by weight of water and 5 to 15 parts by weight of an inorganic additive are mixed with 100 parts by weight of loess powder to form a loess mixture; The yellow mortar mixture is poured into a press mold having an upper part, and then the press mold is vibrated while vibrating left and right while compressing the yellow loam mixture by using a pressure plate at the upper side to form blocks (S3, S4 ); And a step (S5) of discharging the molded product from a press mold, wherein the inorganic additive is added to 100 parts by weight of a solvent which is mixed at a ratio of 85 to 90% by weight of water and 10 to 15% by weight of a mixed solution 40 to 45 parts by weight of calcium sulfoaluminate mineral, 10 to 15 parts by weight of quicklime, 10 to 15 parts by weight of natural anhydrous gypsum and 30 to 35 parts by weight of silicofluoride.

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The yellow clay block according to the present invention can prevent the use of cement, which is an environmental pollutant, by suppressing the use of aggregate and sand while improving the compressive strength of the yellow clay block by using the inorganic high- It is excellent in durability, and not only the far-infrared rays and anions generated in the natural loess which is beneficial to the human body are emitted, but also the effect of preventing cracking after curing of the loess material.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process diagram showing a manufacturing process of a loess block according to the present invention; FIG.
BACKGROUND OF THE INVENTION Field of the Invention [0001]

Hereinafter, exemplary embodiments will be described based on embodiments best suited to an understanding of the technical features of the present invention, and the technical features of the present invention are not limited by the illustrated embodiments, And that the present invention may be implemented with other embodiments. Therefore, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. In order to facilitate understanding of the embodiments to be described below, in the reference numerals shown in the accompanying drawings, among the components that perform the same function in the embodiments, the related components are denoted by the same or an extension line number.

In order to facilitate understanding of the features of the present invention as described above, the yellow clay block and the manufacturing method thereof according to the embodiment of the present invention will be described in more detail.

A method of manufacturing the loess block according to the present invention will now be described with reference to FIGS.

First, the natural loess is dried and pulverized to form loess powder.

The natural loess can be used in various places such as Chonnam, Jeonbuk, Chungnam, Korea, and the collected loess is dried and crushed to form a powder.

,

를 주요 성분으로 함유하는 황토로서,

가 43~47중량%,

가 29~32중량%,

가 6~9중량%,

가 1~2중량%,

가 0.1~0.5중량%,

가 0.5~1.5중량%,

가 3~4중량% 및 기타 성분 7~9중량%를 함유하고 있다.In general, loess is composed of minerals, amorphous materials and organics in the constituent materials, and clay minerals, quartz and other minerals in the minerals. Clay minerals contain various clay minerals, including halosite and kaolinite called kaolinite, and also consist of vermiculite, ilite and smectite. These loess

,

As a main component,

Of 43 to 47% by weight,

Of 29 to 32% by weight,

6 to 9% by weight,

1 to 2% by weight,

0.1 to 0.5% by weight,

0.5 to 1.5% by weight,

3 to 4% by weight and 7 to 9% by weight of the other components.

Next, the loess powder is mixed with the inorganic additive, sand and water to form a loess mixture.

The loess mixture is mixed with 62 to 69 parts by weight of sand, 22 to 28 parts by weight of water and 5 to 15 parts by weight of inorganic additive per 100 parts by weight of loess powder.

Also, the inorganic additive may be prepared by mixing 40 to 45 parts by weight of calcium sulfoaluminate, 10 to 15 parts by weight of lime, 10 to 15 parts by weight of calcium sulfoaluminate with respect to 100 parts by weight of a solvent mixed at a ratio of 85 to 90% by weight of water and 10 to 15% 10 to 15 parts by weight of gypsum and 30 to 35 parts by weight of silicofluoride.

·

·

를 70wt% 이상을 함유하는 광물이다. 이 광물은 수화 시 에트링자이트(

·

·

)를 형성하게 되는데, 에트링자이트 수화물은 32개의 결합수를 고용하고, 고강도화 특성을 가지며, 유기물의 존재하에서도 생성되는 특성을 갖는 것으로, 상기 칼슘설포알루미네이트계 광물의 입도는 블레인 비표면적으로 3000~6,000㎠/g이 가능한데, 4,000±500㎠/g이 적합하다. 비표면적은 초기 반응 속도에 영향을 미치는 인자로서, 비표면적이 높을수록 반응속도가 빨라진다.The calcium sulfoaluminate-based mineral

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·

Is a mineral containing 70 wt% or more. These minerals are hydrated by the ettringite (

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·

The etchringite hydrate has a property of solubilizing 32 bonded water and having a high strength property and being produced even in the presence of an organic matter. The particle size of the calcium sulfoaluminate mineral is determined by the Blaine specific surface area Is 3,000 to 6,000 cm 2 / g, and 4,000 ± 500 cm 2 / g is suitable. The specific surface area is a factor affecting the initial reaction rate. The higher the specific surface area, the faster the reaction rate.

The gypsum to be used in the present invention is a natural anhydrous gypsum which is suitable for reactivity with calcium sulfoaluminate-based minerals because its dissolution rate is slower than that of semi-gypsum gypsum gypsum, contributes to high strength and stability of solid bodies, The blending amount of the calcium sulfoaluminate-based mineral / gypsum is preferably 1 or more and 3 or less, more preferably 3,000 to 8,000 cm 2 / g in terms of the specific surface area of the powder.

The lime used in the present invention is a quick lime, which forms a hydrate by pozzolanic reaction and contributes to the development of strength. The quick lime rapidly exothermically reacts at an early stage to generate calcium hydroxide to reduce the water content of the soil, It is preferable to use quicklime rather than slaked lime.

The silicophyllite is characterized in that the initial reaction is delayed to ensure workability and the hydration reaction with the calcium sulfoaluminate-based mineral is accelerated after the start of hardening. In addition, by accelerating the dissolution rate of silica and alumina components from the soil, the pozzolanic reaction is accelerated and contributes to the high strength in the early ages.

,

같은 가용성분이

와 서서히 반응하여 불용성 칼슘실리케이트 수화물(

·

·

)이나 칼슘알루미네이트 수화물(

·

·

)을 형성하여 그 조직을 더욱 치밀하게 만드는 포졸란 반응을 촉진시켜서 일체화를 가능하게 하며, 무기첨가제의 구성물이 흙의 입자를 응집시키는 작용을 함으로써 경화를 촉진시키면서 강도를 증진시키는 효과가 있다.That is, the inorganic additive according to the present invention enhances the cohesion by restraining the movement of the soil particles by the ettringite formed during the hydration of the calcium sulfoaluminate-based mineral, Lt; RTI ID = 0.0 >

,

The same availability

And slowly reacted with insoluble calcium silicate hydrate (

·

·

) Or calcium aluminate hydrate (

·

·

) Is formed to promote the pozzolanic reaction to make the structure more dense, thereby enabling integration, and the constitution of the inorganic additive coagulates the particles of the soil, thereby enhancing the hardening while promoting the hardening.

Thereafter, the yellow loess mixture formed by the above-described method is introduced into the press mold (M).

The press mold M is constituted by a lower mold having an upper portion opened and a pressure plate M 'lowered by its own weight and oil pressure on the upper side of the lower mold, and a vibrator (B), and the pressure plate applies pressure to the yellow soil mixture in the mold at a high pressure to form a block.

Thereafter, the molded product is shipped from a mold to produce the yellow clay block 100 according to the present invention.

Examples. Composition of Loess Block

To 10 kg of the loess powder, 6.6 kg of sand, 2.7 L of water and 0.5 kg of an inorganic additive were mixed to form a loess mixture.

The inorganic additive was mixed at a ratio of 4.3 kg of calcium sulfoaluminate mineral, 1.2 kg of burnt lime, 0.12 kg of natural anhydrous gypsum and 0.31 kg of anhydrous gypsum, to 10 L of a solvent mixed with 8.7 L of water and 1.3 L of a mixed solution.

The yellow loess mixture is introduced into a press mold and then compressed to form an ocher block according to the present invention.

Because the above-mentioned yellow clay block uses natural soil, the construction material can be obtained without damaging the natural environment, and the surface color of the product shows the color of the natural soil used, Even when the surface is worn, there is no change in color and it is a nature-friendly color. Therefore, it has the merit of protecting eyesight from fatigue and visibility. It has good resistance to repetition of wetting and drying when wetted. The phenomenon is relatively low, and the absorption and conduction characteristics of heat are low in the summer, which has a strong durability against drying and shrinking or freezing and melting.

Claims (5)

(S1) of drying and crushing natural loess to form loess powder;
62 to 69 parts by weight of sand, 22 to 28 parts by weight of water and 5 to 15 parts by weight of an inorganic additive are mixed with 100 parts by weight of loess powder to form a loess mixture;
The yellow mortar mixture is poured into a press mold having an upper part, and then the press mold is vibrated while vibrating left and right while compressing the yellow loam mixture by using a pressure plate at the upper side to form blocks (S3, S4 ); And
And (S5) shipping the molded product from a press mold,
Wherein the inorganic additive is a mixture of 40 to 45 parts by weight of a calcium sulfoaluminate mineral, 10 to 15 parts by weight of quicklime, and 10 to 15 parts by weight of a calcium sulfoaluminate mineral, based on 100 parts by weight of a solvent mixed in a ratio of 85 to 90% 10 to 15 parts by weight of natural anhydrous gypsum and 30 to 35 parts by weight of silicofluoric salt.
delete delete delete An ocher block, characterized in that it is produced by a process for producing an ocher block according to claim 1.

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