KR101062321B1 - Non-sintering construction material and method of manufacturing thereof - Google Patents

Abstract

Non-fired construction material of the present invention comprises a base material consisting of 50 ~ 95wt% general soil and 5 ~ 50wt% strength reinforcement material having a particle diameter of 0.2 ~ 13mm, the base material is calcined lime, calcined gypsum, blast furnace slag fine powder, bentonite ( Bentonite), bauxite powder, water-resistant oil-containing polycarboxylic acid-based resin, aluminum sulfate, at least one component selected from the group consisting of starch powder is added, it is environmentally friendly and excellent durability and strength.

Description

Non-fired construction material and its manufacturing method {NON-SINTERING CONSTRUCTION MATERIAL AND METHOD OF MANUFACTURING THEREOF}

The present invention relates to a non-baking construction material and a method for manufacturing the same, and in particular, using a non-baking method (non-baking) using a general soil that can be easily obtained from the surroundings and its manufacture It is about a method.

Recently, with increasing environmental and health concerns, construction materials that are easily accessible around us are also demanding environmentally friendly elements.

On the other hand, Korea has been producing coal and wood mainly for the production of construction materials by soil, and by the firing method. From 1980's, it started mass production by switching to production by tunnel kiln method.

This firing method is a cause of destruction of the natural environment due to the securing of materials, as the fire-resistant soil needs to be aged and used for two to three years, and the tunnel firing process uses continuous energy (light oil and gas) Various problems such as pollution of surrounding environment due to excessive carbon emission, difficult problem of recycling of ceramic bad products, and rising cost of products due to high oil prices are emerging.

Cement has the problem of retreating environmental pollution and health in proportion to the amount of cement used as a construction material in consideration of the important resources that are indispensable in construction materials, the enormous energy consumption required for production, and the carbon dioxide emission.

In addition, due to the problems of calcining and cement products, many researches and developments are being made and commercialized on ocher, but it is the cause of environmental destruction due to the extraction of high quality ocher, and it is excessive weapon because it pursues the durability and strength of existing calcined and cement products. The use of materials (cement, slag, etc.) is a situation where the use of a small amount of loess has been lost environmentally friendly purpose.

The present invention has been made in view of the above, and provides an environment-friendly, non-plastic construction material excellent in durability and strength, and a method of manufacturing the same.

Non-plastic construction material according to an aspect of the present invention, the base material consisting of 50 ~ 95wt% general soil and 5 ~ 50wt% strength reinforcement material having a particle diameter of 0.2 ~ 13mm, slaked lime, calcined gypsum, blast furnace slag on the base material At least one component selected from the group consisting of fine powder, bentonite, bauxite powder, water-retaining polycarboxylic acid resin, aluminum sulfate, and starch powder is added.

In the non-plastic construction material, the strength reinforcing material may be composed of at least one component selected from the group consisting of aggregate, vermiculite, dolomite, and illite.

In the non-fired construction material, the aggregate is one component selected from the group consisting of sand and fine aggregates by-products left from the collection, stone powder generated in the form of sludge during the grinding or cutting process and recycled aggregates coming out as by-products during the production process. Can be.

In the non-fired construction material, the strength reinforcing material is dolomite, the particle diameter is 2 ~ 8mm and may be the content of 40 ~ 50wt%.

In the non-plastic construction material, the strength reinforcing material is vermiculite, the vermiculite is heated to 300 ℃ or more, the specific gravity may be 0.09 or less.

In the non-fired construction material, the components added to the base material, the calcined lime 5 ~ 15wt%, blast furnace slag fine powder 2 ~ 5wt%, bentonite 3 ~ 5wt%, bauxite powder based on the total weight of the base material 0.5 ~ 3wt%, water-resistant oil-containing polycarboxylic acid resin 0.1 ~ 0.3wt%, aluminum sulfate 0.1 ~ 0.3wt%, starch powder may be 0.1 ~ 0.5wt%.

In the non-baking construction material, the calcined lime may be one aged for 24 hours or more in water.

In the non-fired construction material, the water-retaining polycarboxylic acid-based resin is made of 40% polymethacryl and 60% water, the viscosity may be 160 ± 40 cP.

In the non-baking construction material, the component added to the base material is 5 to 15 wt% of calcined gypsum, 2 to 5 wt% of blast furnace slag powder, 3 to 5 wt% of bentonite, and bauxite powder based on the total weight of the base material. 0.5 to 3wt%, aluminum sulfate 0.1 to 0.3wt%, starch powder may be 0.1 to 0.5wt%.

In the non-plastic construction material, the strength reinforcing material is an illite, the illite has a particle diameter of 0.2 ~ 0.8mm, may be 40 ~ 50wt%.

In the non-baking construction material, the calcined gypsum may have a crystallization number of 21% or more.

The non-fired construction material may be one to 2wt% of at least one of ocher, clay and red soil with respect to the total weight of the base material.

In the non-baking construction material, the strength reinforcing material has a particle size of 8 ~ 13mm, the content of 40 ~ 50wt% with respect to the general soil, the component added to the base material, calcined lime 5 ~ to the total weight of the base material 15wt%, blast furnace slag 2 ~ 5wt%, bentonite 3 ~ 5wt%, bauxite powder 0.5 ~ 3wt%, water soluble polycarboxylic acid resin 0.1 ~ 0.3wt%, aluminum sulfate 0.1 ~ 0.3wt% Can be.

Non-plastic construction material manufacturing method according to an aspect of the present invention, the step of preparing a base material with a content of 5 ~ 50wt% strength reinforcement material of general soil 50 ~ 95wt% and particle size 0.2 ~ 13mm and calcined lime on the base material, At least one substance selected from the group consisting of calcined gypsum, blast furnace slag powder, bentonite, bauxite powder, hydrated polycarboxylic acid-based resin, aluminum sulfate, and starch powder is added.

The non-plastic construction material manufacturing method may further include the step of injecting a material mixed with the base material and the additives into a mold or a mold, and molding and curing by applying pressure to the material put into the mold. .

In the non-baking construction material manufacturing method, the step of applying the pressure may use at least one of a dry hydraulic molding method, a vacuum drill machine molding method, a wet vibration molding method.

According to the non-fired building material of the present invention and a manufacturing method thereof, it is possible to obtain a non-fired building material that is environmentally friendly and has excellent durability and strength.

1 is a flow chart showing a method for producing a non-plastic construction material according to an embodiment of the present invention.
2 to 4 show examples of non-plastic construction materials according to one embodiment of the invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated and described in detail.

However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention.

Singular expressions include plural expressions unless the context clearly indicates otherwise. The term in this application is intended to specify that there is a feature, number, component or combination thereof described in the specification, but in advance the possibility or presence of one or more other features or numbers, components or combinations thereof. It should be understood that it does not exclude.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed in accordance with their meaning in the context of the related art, and shall not be construed in an ideal or excessively formal sense unless clearly defined herein.

Hereinafter, an embodiment of the present invention will be described.

Non-baking construction material according to an embodiment of the present invention includes a base material consisting of 50 ~ 95wt% general soil and 5 ~ 50wt% strength reinforcement having a particle diameter of 0.2 ~ 13mm, calcined lime, calcined gypsum, blast furnace At least one component selected from the group consisting of fine slag powder, bentonite, bauxite powder, water-retaining polycarboxylic acid resin, aluminum sulfate, and starch powder is added.

The general soil, the general soil refers to all soil that can be easily obtained around the life and the strength reinforcing material is made of aggregate, vermiculite, dolomite, illite as a material for reinforcing the strength of the general soil It may consist of at least one component selected from the group.

The content of the general soil and the strength reinforcement of the base material is preferably 50 to 95wt% and 5 to 50wt% strength reinforcement of the general soil as described above. This is because when the general soil is less than 50wt%, there is a risk of losing the eco-friendly properties of the general soil, and when the 95wt% is exceeded, the strength is lowered.

Since the general soil is used as described above, it is not necessary to make a large-scale harvesting site, as in the case of manufacturing a fired product or a loess product, so it is possible to reduce environmental destruction and to recycle, which is very environmentally friendly.

Hereinafter, the strength enhancer will be described in more detail.

The strength reinforcing material is 0.2 ~ 13mm in particle size, it is preferable to use the particle size of 0.2 ~ 0.8mm as the use of general construction materials, it is preferable to use the one having a particle diameter of 2 ~ 13mm as the use of civil engineering materials, It is preferable to use what has a particle diameter of 8-13 mm as a use of the construction material for road paving.

The aggregate refers to at least one component selected from the group consisting of sand, fine aggregates, by-products left from the collection, stone powder generated in the form of sludge during the grinding or cutting process, and recycled aggregates from the by-products during the production process.

At this time, recycled aggregates can use all recycled products that have passed the test report of Korea Institute of Construction and Environmental Testing and Korea Chemical Convergence Test Laboratory, and can also use hot ball, which is a by-product of various smelters and concrete after disposal of concrete waste. Do.

In other words, the aggregate can be easily obtained from the by-products after the various constructions or the surroundings, and in particular, the aggregate can be used as industrial by-products can be used to significantly reduce the cost.

The vermiculite is a mineral belonging to a monoclinic system having a mica-like crystal structure, also called vermiculite, and is a grayish white or brown color and a pearlescent material.

The vermiculite is easily decomposed into acids, has a high cation exchange capacity, and expands upon heating.

Accordingly, in case of using the expanded material heated to vermiculite at about 300 ° C. or more, the weight is light (specific gravity 0.09 or less, specific gravity 1/3) and it does not burn at high temperature (about 1,400 ° C.) Can be used as

The dolomite is a material in which carbonate and magnesium carbonate are bicarbonates in a ratio of 1: 1 to 3.5. The dolomite may be used as a civil construction material requiring high strength when the dolomite is used.

The illite is a mica-based mineral belonging to a monoclinic system, which adsorbs and deodorizes various heavy metals and harmful gases in the atmosphere, and emits anion by itself and emits 93% of far infrared rays at 40 ° C. In addition, it can be used as indoor construction materials when the illite is used as a material beneficial to health, such as sterilization odor removal action, bacteriostatic action of viruses, bacteria, fungi, etc., and harmful wavelength blocking.

Hereinafter, each composition constituting the additive will be described in more detail.

At this time, the range of content of each composition described below is an optimum range for maximizing the synergistic effect obtained by mixing with each other effect and the other composition obtained when using each composition.

The slaked lime is a soft white powder widely used as a raw material in the chemical industry, called calcium hydroxide, and when the slaked lime is kneaded with water, it absorbs carbon dioxide in the air and hardens to make lime dough for construction using this property. In addition, it is used for raw material of bleaching powder and correction of acidic soil.

At this time, the calcined lime (Ca (OH) ₂) is preferably used for aged in water for 24 hours or more.

As described above, when the hydrated lime is aged in water for 24 hours or more, harmful gases and impurities are removed during the aging process, thereby improving adhesion and strength with general soil and giving an alkaline component according to the blast furnace slag hydration reaction.

Table 1 below shows measured values of compressive strength and water absorption when using immature slaked lime or 24-hour aged slaked lime.

division Absorption rate (%) Compressive strength (N / mm ㅂ) Remarks Aging more than 24 hours 8.0 23.00 Immaturity 10.4 17.50

According to the above test results, when using the slaked lime prepared by the method of Example 1, the compressive strength and the absorption rate showed that the slaked lime aged for 24 hours or more than that of the immature slaked lime showed superior results (20 to 30%). Can be.

The slaked lime is preferably used 5 ~ 15wt% based on the base material. If it is less than 5wt%, it is weak to water (when raining) and it is impossible to use as a building exterior material. If it is over 16wt%, it may cause cracks in the product due to the rapid hardening of general soil and there is a problem of cost increase.

The calcined gypsum (CaSO₄.¹ / ₂H₂O) is a material dehydrated by heating calcined gypsum (CaSO2.2H₂O) to about 200 ° C, which has a property of hardening by reacting with water and having 21% of crystallized water in the calcined gypsum itself. It has excellent fire retardant effect and low thermal conductivity (0.14㎉ / mh ℃) because it has little influence of outside temperature in summer and winter, so it is easy to adjust indoor temperature, and it is a substance that cockroaches and ants dislike. It is possible to use as indoor construction materials when the plaster is added as a hygiene to prevent access.

The calcined gypsum is preferably used 0.1 to 0.3wt% based on the base material. This has a problem that the strength is lowered when using less than 0.1wt% and crack occurs when used over 0.3wt%.

The blast furnace slag powder is a molten non-ferrous component contained in iron ore, coke and limestone charged in the blast furnace (furnace) to produce iron (high pressure) to quench with a high-pressure water mill mill (mill) It refers to the crushing to a certain powder at and improves the long-term strength of the structure by maintaining the structure by the hydration reaction with water to improve the durability.

The fineness of the blast furnace slag powder is preferably a specific surface area of 6,000 cm 2 / g ~ 8,000 cm 2 / g.

The fine blast furnace slag powder is preferably used 30 to 40% of the addition amount of the slaked lime, and more preferably the ratio of the slaked lime and blast furnace slag fine powder is 3: 1. This is because in the case of using slaked lime as a cement substitute, when the blast furnace slag powder is less than 30% of slaked lime, the strength drops, and when the slag fine powder exceeds 40%, the strength becomes too large and cracks may occur. When the ratio of slaked lime to blast furnace slag is 3: 1, it is the optimum ratio of strength expression.

The bentonite powder is a clay mineral, which helps to increase the strength by filling the fine space between the materials. In particular, by preventing the absorption of water to lower the absorption rate can impart a strong property to freeze-thaw and prevent winter freezing waves.

Preferably, the bentonite powder has a specific surface area of 6,000 cm 2 / g or more.

The bentonite is preferably used 3 to 5wt% based on the base material. This is because when less than 3wt%, the effect of filling the small spaces between the compositions is reduced and water is absorbed and affects the freezing of the product.When it is used more than 6wt%, the physical properties of the general soil are weak and there is a problem of cost increase.

Bauxite powders are clay minerals of various colors, but they are red to enhance the texture of the general soil of the structure. Especially, aluminum hydroxide (Al (OH) ₃), which is included, is flame retardant and heat resistant. It is strong and suitable as a building material, resistant to acid rain caused by environmental changes, and also removes heavy metals.

The bauxite powder may be one having a particle diameter of 5 to 20 mm, and 0.5 to 3 wt% based on the base material. This is because the use of less than 0.5wt% of the characteristics of the flame retardancy, heat resistance of its own properties are inferior, and when used more than 4wt% there is a problem that whitening phenomenon occurs on the product surface by aluminum hydroxide.

The water-retaining polycarboxylic acid-based resin is an organic compound of petrochemical products, which suits the moisture content during construction materials manufacturing, suppresses fast bonding, improves the efficiency of production work, and improves the initial strength of the product by maintaining moisture evenly. Let's do it.

The water-retaining polycarboxylic acid-based resin is composed of 40% polymethacryl and 60% water, and the viscosity is 160 ± 40 cP, it is preferable to use 0.1 ~ 0.3wt% with respect to the base material. This is because when using less than 0.1wt% may cause a rapid reaction and the moisture content may be reduced, when using more than 0.3wt% may cause a slow reaction, the moisture content may be increased and there is a problem of cost increase.

The aluminum sulfate [Al₂ (SO₄) ₃] is to prevent the separation of the material particles to maintain an even density, and to prevent expansion and contraction due to the properties of the general soil to prevent cracking in the non-fiction construction material Can be.

The aluminum sulfate is used in that the content of aluminum oxide 17% or more, the aluminum sulfate is preferably used 0.1 to 0.3wt% based on the base material. This is because when it is used less than 0.1wt%, the function of the product cannot be maintained evenly because the density of material particles can be maintained, and when it is used above 0.3wt%, there is a problem of lowering the strength expression due to neutralization action by slaked lime (alkali) and acid. .

The starch powder stabilizes the hydroxyl group (-OH) to improve the formability of the product and increases the adhesion between the mixed materials to increase the initial strength and improve the compatibility between organic and inorganic materials in the general soil. Can be increased.

The starch powder is preferably used 0.1 to 0.5wt% based on the base material. When using less than 0.1 ~ 0.5wt% there is a problem of adhesive strength between the mixed materials and when using more than 0.5wt% as a natural material cost rise.

The non-plastic construction material may be added in an amount of 1 to 2 wt% based on the total weight of the base material of the natural color inorganic material.

The natural color inorganic material may be any one of ocher, clay, red soil, and is used as a color aid. When used less than 1wt% color may not appear well, and when used more than 2wt% there is a problem of cost increase as a natural material.

Next, a method for manufacturing non-fired construction material according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flow chart showing a method of manufacturing a non-baking construction material according to an embodiment of the present invention.

First, the base material is prepared with the content of 50 ~ 95wt% general soil and 5 ~ 50wt% strength reinforcement having a particle diameter of 0.2 ~ 13mm (S201).

Next, at least one substance selected from the group consisting of slaked lime, slaked gypsum, blast furnace slag fine powder, bentonite, bauxite powder, hydrated polycarboxylic acid-based resin, aluminum sulfate, and starch powder is added to the base material as an additive. It is added (S202).

Next, a material in which the base material and the additive are mixed is introduced into a mold or a mold (S203).

Next, by applying pressure to the material injected into the mold and molding and curing to complete the non-plastic construction material (S204).

At this time, in the step of applying pressure, a dry hydraulic molding method, a vacuum drill molding method, or a wet vibration molding method may be used.

On the other hand, the moisture content is 8 to 10% in the dry hydraulic molding method, 18 to 20% in the vacuum drilling machine molding method, and 30 to 40% in the wet vibration molding method.

In addition, the material mixed with the base material and the additive may be used as a plastering material and road pavement material, in which case it is used as it is without the need to put into the mold.

When used as a plaster, the moisture content is 30 to 40%, and when used as a road pavement, the roller compaction method is used and the moisture content is 5 to 8%.

2 to 4 show examples of non-plastic construction materials produced by the method described above.

The non-fired construction material manufactured by the above method uses less energy than the construction material manufactured by the firing method, which can greatly reduce the cost of the product. It is eco-friendly because there is no emission of phosphorus carbon dioxide.

In addition, the non-plastic construction materials manufactured by the above-described composition and manufacturing method are preferable as construction materials replacing plastic products and cement products because they do not infer the durability and strength standards of existing plastic products and cement products and do not dissolve harmful substances. Can be used.

Table 2 below shows that the non-fired construction material is harmless as a result of the heavy metal dissolution test of the non-fired construction material using the general soil manufactured as described above.

Inspection items unit Designated Waste Level result Test Methods Hexavalent chrome mg / 1 1.5 or more Not detected Waste Process Test Standard: 2008 Lead Content mg / 1 3 or more Not detected Waste Process Test Standard: 2008 Cadmium content mg / 1 0.3 or more Not detected Waste Process Test Standard: 2008 Arsenic content mg / 1 1.5 or more Not detected Waste Process Test Standard: 2008 Mercury content mg / 1 0.005 or more Not detected Waste Process Test Standard: 2008 Copper content mg / 1 3 or more 0.21 Waste Process Test Standard: 2008 Trichlorethylene mg / 1 0.3 or more Not detected Waste Process Test Standard: 2008 Tetrachloroethylene mg / 1 0.1 or more Not detected Waste Process Test Standard: 2008 Cyan content mg / 1 1 or more Not detected Waste Process Test Standard: 2008 Organophosphorus compounds mg / 1 1 or more Not detected Waste Process Test Standard: 2008

The following is an example of a non-baking construction material produced by the above method.

By the composition and manufacturing method of each material described above, the non-fired construction material may be composed of the following components.

First, the non-fired construction material according to an embodiment of the present invention includes a base material consisting of 50 to 95 wt% of general soil and 5 to 50 wt% of a strength reinforcing material having a particle diameter of 0.2 to 13 mm, and calcined lime 5 to about the total weight of the base material. 15wt%, blast furnace slag 2 ~ 5wt%, bentonite 3 ~ 5wt%, bauxite powder 0.5 ~ 3wt%, water soluble polycarboxylic acid resin 0.1 ~ 0.3wt%, aluminum sulfate 0.1 ~ 0.3wt%, Starch powder may comprise 0.1 to 0.5wt% and 5 to 40wt% of water.

Non-fired construction material composed of the above components can be used as a general building and civil engineering materials, such as brick, block, plastering.

In the non-fired construction material according to the above example, the non-fired construction material in which the calcined gypsum participated, except for the calcined lime and the water-retaining polycarboxylic acid-based resin, is 50 ~ 95wt% of general soil and the strength reinforcement having a particle diameter of 0.2 ~ 13mm. Base material comprising 50wt%, 5 to 15wt% of calcined gypsum, 2 to 5wt% of blast furnace slag powder, 3 to 5wt% of bentonite, 0.5 to 3wt% of bauxite powder, aluminum sulfate based on the total weight of the base material 0.1 to 0.3 wt%, starch powder 0.1 to 0.5wt%, may comprise 5 to 40wt% moisture.

As described above, non-plastic construction materials to which calcined gypsum is added may be used as interior building materials such as health functional bricks and tiles.

The non-fired construction material made by removing starch from the non-fired construction material according to the above example includes a base material comprising 50 to 60 wt% of general soil and 40 to 50 wt% of a strength reinforcing material having a particle diameter of 8 to 13 mm. 5-15 wt% of hydrated lime, 2-5 wt% of blast furnace slag, 3-5 wt% of bentonite, 0.5-3 wt% of bauxite powder, 0.1-0.3 wt% of water-retaining polycarboxylic acid resin, Aluminum sulfate may be made to include 0.1 ~ 0.3wt%, moisture content 5 ~ 40wt%.

As the non-plastic construction material, the non-plastic construction material having a particle diameter of 8 to 13 mm and a content of 40 to 50 wt% may be used as a building material for road paving.

Next, an embodiment of a non-baking construction material according to an embodiment of the present invention will be described in detail.

It is apparent that the specific description of the present invention may be variously performed by those skilled in the art. Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments will be within the scope of the appended claims.

≪ Example 1 >

75wt% of general soil, 8wt% of slaked lime compared to 25mm of sand 0.8mm, blast furnace slag fine powder 5wt%, bentonite 2wt%, bauxite powder 0.5wt%, water-retaining polycarboxylic acid resin 0.1wt%, aluminum sulfate 0.1wt%, 0.1 wt% of starch powder is mixed with 8wt% of water, put into mold of 190x90x57mm size, brick shape is made by dry hydraulic method, and natural curing for 3 days to produce non-plastic building materials using general soil. It was.

According to the first embodiment, it is possible to manufacture construction materials such as masonry bricks, exterior tiles, interior partitions, fence wall blocks, and the like.

<Example 2>

65wt% soil, 35wt% aggregate (0.8mm 30% sand, 13mm 70% stone powder), 10wt% slaked lime, blast furnace slag fine powder 7wt%, bentonite 5wt%, bauxite powder 0.5wt%, water-retaining polycarboxylic acid resin 0.2wt%, aluminum sulfate 0.2wt%, starch 0.2wt% mixed with water 10wt% ratio into a mold of 190x90x57mm size, and made brick shape by dry hydraulic method, then natural curing for 3 days A non-plastic civil engineering material was prepared using soil.

According to the second embodiment, it is possible to manufacture civil engineering materials such as sidewalk bricks, riverside vegetation revetment blocks, and park grass blocks.

<Example 3>

Compared with general soil 60wt%, dolomite 8mm 40wt%, slaked lime 15wt%, blast furnace slag fine powder 5wt%, bauxite powder 2wt%, water-retaining polycarboxylic acid resin 0.3wt%, aluminum sulfate 0.3wt%, water 35wt% Then, the structure shape was manufactured by wet vibration molding method into a 450x450x100mm mold, and then a non-plastic high strength large structure using general soil was manufactured by natural curing for 7 days.

According to the third embodiment, it is possible to manufacture a high-strength large structure such as a retaining wall block for a shaft, a large-sized coastal revetment structure, and an offshore structure.

<Example 4>

90wt% of general soil, 15wt% of calcined gypsum, 0.3wt% of aluminum sulfate, 0.3wt% of starch powder, 2wt% of natural color inorganic material, mixed with 18wt% of water and put into 190x90x57 mold and forming a vacuum drill machine After the brick was manufactured by the method, non-fired indoor tile construction materials using general soil were manufactured by natural curing for 5 days.

According to the fourth embodiment, it is possible to manufacture indoor tiles used for interiors and the like.

Example 5

70wt% of general soil, 15wt% of slaked lime compared to 30mm% of sand, 0.3wt% of water-retaining polycarboxylic acid resin, 0.3wt% of aluminum sulfate, 0.3wt% of starch powder, 30wt% of water to 2wt% of natural color inorganic materials Plastering with natural soil was carried out by mixing it with 2x2m wall and curing it with a thickness of 10mm for 7 days.

According to the fifth embodiment, it is possible to manufacture the interior and exterior wall surface plastering material.

      <Example 6>

50wt% of general soil, 15wt% of calcined gypsum, 0.3wt% of aluminum sulfate, 0.3wt% of starch powder, 2wt% of natural color inorganic material, 18% wt% of water, and forming a vacuum drill machine in 50x50x50mm mold In the method, non-plastic indoor functional construction materials using general soil were manufactured by natural curing for 5 days.

According to the sixth embodiment, it is possible to manufacture indoor functional construction materials such as indoor health functional bricks and tiles.

<Example 7>

60wt% of general soil, 10wt% of calcined gypsum compared to 40% of vermiculite, 0.2wt% of water-retaining polycarboxylic acid resin, 0.2wt% of aluminum sulfate, 0.5wt% of starch powder, 18wt% of water, and vacuum drilling in 50x50x50mm mold After preparing the public specimen by the preforming method, a non-plastic indoor lightweight construction material using general soil was manufactured by natural curing method for 5 days.

According to the seventh embodiment, it is possible to manufacture a building material (specific gravity 1/3 of a general product) that can be used even on a high floor.

<Example 8>

60wt% of general soil, 15wt% of slag lime, 5wt% of blast furnace slag, 3wt% of bauxite, 0.3wt% of water-retaining polycarboxylic acid resin, 0.3wt% of aluminum sulfate and 6wt% of water After a depth of 60cm on the ground surface 2x2m width, compacted 45Cm and then cured to 15Cm on the upper surface by natural curing for 1 day to construct an eco-friendly sidewalk road using ordinary soil.

According to the eighth embodiment, it is possible to manufacture road paving materials such as park trails, bicycle paths, and sidewalk roads.

Taking non-plastic construction material samples using the general soil prepared by the method of Examples 1 to 8, respectively, the compressive strength and the water absorption were measured, and the results are shown in Table 3 below. The comparative example 1 is the KS standard (KSL 4201) and the comparative example. 2 shows the reference value of the fired brick test item of the GR standard (GR F 4014).

division Absorption rate (%) Compressive strength (N / mm²) Remarks Example 1 Sample 1 8.0 23.00 Example 2 Sample 2 6.5 27.50 Example 3 Sample 3 5.8 41.00 Example 4 Sample 4 8.5 19.50 3 types Example 5 Sample 5 7.2 24.00 Example 6 Sample 6 8.0 21.50 3 types Example 7 Sample 7 8.2 20.00 3 types Example 8 Sample 8 8.5 31.50
Comparative Example 1
Type 1 below 10 20.59 or more 2 types 13 or less 15.69 or higher 3 types 15 or less 10.78 or more
Comparative Example 2 Type 1 below 10 22.54 or more 2 types 13 or less 20.59 or more 3 types 15 or less 10.78 or more

According to the test results, the compressive strength and the water absorption rate of the general soil samples prepared by the methods of Examples 1 to 8 were the fired brick test items of KS standards (KS 4201) and GR standards (GR F 4014) of Comparative Examples 1 and 2. It can be seen that the results are superior to the standard value of.

Therefore, the non-fired construction material manufactured by the non-fired construction material manufacturing method using the general soil of the present invention can be used as an excellent substitute because it has excellent durability and strength as compared with plastic products and cement products.

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later And it will be understood that various modifications and changes of the present invention can be made without departing from the scope of the art.

Claims (16)

General soil 50 ~ 95wt%,
It includes a base material consisting of 5 ~ 50wt% strength reinforcing material having a particle diameter of 0.2 ~ 13mm,
At least one component selected from the group consisting of calcined lime, calcined gypsum, blast furnace slag fine powder, bentonite, bauxite powder, water-retaining polycarboxylic acid resin, aluminum sulfate, and starch powder is added to the base material. ,
Components added to the base material, the calcined lime 5 ~ 15wt%, blast furnace slag fine powder 2 ~ 5wt%, bentonite 3 ~ 5wt%, bauxite powder 0.5 ~ 3wt%, water-resistant Non-plastic construction material, characterized in that the polycarboxylic acid resin 0.1 ~ 0.3wt%, aluminum sulfate 0.1 ~ 0.3wt%, starch powder 0.1 ~ 0.5wt%. The method of claim 1,
The strength reinforcing material is aggregate, Vermiculite (Vermiculite), Dolomite (Dolomite), Non-plastic construction material, characterized in that consisting of at least one component selected from the group consisting of. The method of claim 2,
The aggregate is a non-plastic construction material, characterized in that one component selected from the group consisting of sand, fine aggregates by-products remaining in the form of sludge during the grinding or cutting process, and recycled aggregates as a by-product during the production process. The method of claim 2,
The strength reinforcing material is dolomite, the particle diameter is 2 ~ 8mm and the content of 40 ~ 50wt%,
The general soil is non-plastic construction material, characterized in that the content of 50 ~ 60wt%. The method of claim 2,
The strength reinforcing material is vermiculite, the vermiculite is heated to 300 ℃ or more, non-plastic construction material, characterized in that the specific gravity is less than 0.09. delete The method of claim 1,
The calcined lime is non-baked construction material, characterized in that aged for more than 24 hours. The method of claim 1,
The water-retaining polycarboxylic acid-based resin is non-plastic construction material consisting of polymethacryl 40wt% and water 60wt%, the viscosity is 160 ㅁ 40cP. General soil 50 ~ 95wt%,
It includes a base material consisting of 5 ~ 50wt% strength reinforcing material having a particle diameter of 0.2 ~ 13mm,
At least one component selected from the group consisting of calcined lime, calcined gypsum, blast furnace slag fine powder, bentonite, bauxite powder, water-retaining polycarboxylic acid resin, aluminum sulfate, and starch powder is added to the base material. ,
Ingredients added to the base material, 5 to 15wt% of calcified gypsum, 2 to 5wt% of blast furnace slag powder, 3 to 5wt% of bentonite, 0.5 to 3wt% of bauxite powder, aluminum sulfate 0.1 Non-baking construction material, characterized in that ~ 0.3wt%, starch powder 0.1 ~ 0.5wt%. 10. The method of claim 9,
The strength reinforcing material is an illite, the illite has a particle diameter of 0.2 ~ 0.8mm, the content of 40 ~ 50wt%,
The general soil is non-plastic construction material, characterized in that the content of 50 ~ 60wt%. 10. The method of claim 9,
The calcined gypsum is non-plastic construction material, characterized in that more than 21wt% crystallization. 10. The method of claim 9,
Non-baking construction material, characterized in that 1 to 2wt% of at least one of ocher, clay and red soil are added to the total weight of the base material. General soil 50 ~ 60wt%,
It includes a base material consisting of 40 ~ 50wt% strength reinforcing material having a particle diameter of 8 ~ 13mm,
At least one component selected from the group consisting of calcined lime, calcined gypsum, blast furnace slag fine powder, bentonite, bauxite powder, water-retaining polycarboxylic acid resin, aluminum sulfate, and starch powder is added to the base material. ,
Components added to the base material, the calcined lime 5 ~ 15wt%, blast furnace slag fine powder 2 ~ 5wt%, bentonite 3 ~ 5wt%, bauxite powder 0.5 ~ 3wt%, water-resistant Non-plastic construction material, characterized in that the polycarboxylic acid resin 0.1 ~ 0.3wt%, aluminum sulfate 0.1 ~ 0.3wt%. Preparing a base material with a content of 50 ~ 95wt% of general soil and 5 ~ 50wt% of strength reinforcing material having a particle diameter of 0.2 ~ 13mm, and
At least one substance selected from the group consisting of slaked lime, calcined gypsum, blast furnace slag fine powder, bentonite, bauxite powder, water-retaining polycarboxylic acid-based resin, aluminum sulfate and starch powder as an additive is added to the base material. Steps,
The component added to the base material,
5-15 wt% of hydrated lime, blast furnace slag fine powder 2-5 wt%, bentonite 3-5 wt%, bauxite powder 0.5-3 wt%, water-retaining polycarboxylic acid resin 0.1-0.3wt %, Aluminum sulfate 0.1-0.3wt%, starch powder 0.1-0.5wt%,
Based on the total weight of the base material, 5 ~ 15wt% of plaster, 2 ~ 5wt% of blast furnace slag, bentonite 3 ~ 5wt%, bauxite powder 0.5 ~ 3wt%, aluminum sulfate 0.1 ~ 0.3wt%, starch powder 0.1 ~ Non-baking construction material manufacturing method, characterized in that 0.5wt%. The method of claim 14,
Injecting a mixture of the base material and the additive into a mold or a mold; and
The step of molding and curing by applying pressure to the material put into the mold
Non-plastic construction material manufacturing method comprising a more. 16. The method of claim 15,
In the step of applying the pressure, non-plastic construction material manufacturing method characterized in that at least any one of a dry hydraulic molding method, a vacuum blower molding method, a wet vibration molding method.

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