KR20110114342A - INSULATOR · LIGHT WEIGHT CONCRETE CONSTRUCTION MATERIALS AND MANUFACTURING METHOD THEREFOR - Google Patents

Abstract

In the present invention, the concrete is cement as the main binder, and mixed with admixture and water in a certain ratio, and stirred to make a suitable slurry state, and the concrete is placed in a certain amount of slurry state as a bottom layer on a predetermined metal mold. Laminated reinforcement fiber reinforcement material (3), insulation board board (2) and reinforcement fiber reinforcement material (3) in order It relates to a lightweight concrete building material and a method of manufacturing the same.

Description

INSULATOR LIGHT WEIGHT CONCRETE CONSTRUCTION MATERIALS AND MANUFACTURING METHOD THEREFOR}

The present invention relates to a heat insulating and lightweight concrete building material and a method for manufacturing the same, which are used for heat insulation, sound insulation and light weight of a specific load-bearing internal and external walls of a building.

The characteristic of the current building structure is the trend toward high-rise and large-scaled construction, and also pursues an energy-saving construction method.

In this respect, many efforts have been made to simultaneously realize insulation, sound insulation, and weight reduction for interior and exterior wall building materials of buildings.

Korean Patent Publication No. 0152584 describes a method for manufacturing a lightweight insulating block and a lightweight insulating block in which a high-density compressed styropole panel is disposed between reinforcing bars between concrete bodies in which stipopol particles are mixed.

Domestic registered utility model registration registration No. 20-0262467 has a interior material formed with a plurality of through-holes through one surface consisting of a rectangular parallelepiped and the opposite surface, and a wall plate portion formed with a plurality of convex protrusions inserted into the through-holes and the The outer side wall is formed on the outside of the wall plate portion so that the three sides of the interior material is blocked from the outside, the side wall portion is formed concavely concave toward the center of the wall plate portion is provided with a pair on each side of the interior material and the outer body surrounding both sides It can be seen that the sound insulation thermal insulation lightweight block brick and the wall having the same are disclosed, which is composed of a lattice structure in which fluid mortar is injected and cured by the through-holes of the interior material exposed to the outside to bind the interior material and a pair of external bodies.

The prior art building material is a problem that the present invention is to solve the problem of having a light weight, at the same time having a heat insulating effect and strength.

In order to solve the above problems, the present invention does not use reinforcing bars, wire mesh, gypsum board, concrete board, chemical adhesives, etc. It is manufactured by using fiber reinforcement, and the insulation material (foamed polystyrene, rock wool) board and reinforcing fiber reinforcement are completely impregnated and cured in concrete in the state of slurries, and the insulation is completely impregnated in concrete in the form of board. Since the insulation effect and light weight can be increased, and the concrete is used, the self-curing bonding force of the concrete can increase the bonding strength with the insulation board board, the high compressive strength, and the reinforcing fiber reinforcement to increase the tensile strength, which is a disadvantage of the concrete. Insulation / lightweight concrete building material manufactured by impregnation and its manufacturing method It is to provide a solution to the problem to be achieved by the present invention.

The present invention is environmentally friendly by not using any other materials such as reinforcing wire, wire mesh, gypsum board, concrete board, chemical adhesive, and the concrete and heat insulation board board is closely coupled, there is no movement of air to maximize the heat insulation effect,

In addition, since the low specific gravity insulation material is used in the form of board, and the weight reinforcing fiber is used as the reinforcing material instead of the heavy metal reinforcing material such as rebar and wire mesh, the weight reduction effect is increased.

The specific gravity is the lower the specific gravity the thicker the product thickness, the higher the specific gravity is the thinner product thickness, the specific gravity is 0.45 ~ 0.79 and floats in water, because the insulation board board material is completely impregnated in the concrete, It is resistant to the impact and increases the safety of fire resistance. Even if it is heated for 20 minutes at the heat temperature of 325 ℃, it does not generate combustion, flame or combustion gas, so it is a semi-combustible material based on the flame retardant performance standard of the interior finishing material (KS F ISO 5660-1 Meet the conditions,

It is made of concrete with high strength, so it can prevent the absorption and invasion by external moisture, and it is possible to fix window frame, door lock fixing device, nailing, etc., and to shorten the air by the simplicity of construction. It is.

1 is a detailed view of heat insulation and lightweight concrete building materials of the present invention
2 is a detailed cross-sectional view of heat insulation and lightweight concrete building materials of the present invention
3 is a detailed view of the insulation board sheet material of the present invention
4 is a detailed view of the reinforcing fiber reinforcement of the present invention
5 is a thermal insulation, lightweight concrete building material picture of the present invention

In order to achieve the above object, the present invention concrete is a cement as a main binder and mixed with admixture and water in a certain ratio and stirred to make a suitable slurry state to a certain amount of metal to the bottom layer firstly to the bottom layer. After placing concrete in the concrete state, reinforcing fiber reinforcement material (3), insulation board board material (2), and reinforcing fiber reinforcement material (3) are laminated in this order, and secondary concrete fully fills the voids by pouring The present invention relates to insulating and lightweight concrete building materials made by curing concrete in time, and a method of manufacturing the same.

As the admixture of concrete of the present invention, silica sand, frying ash, batam ash are used, and each single species is used or mixed with two or more kinds.

As the heat insulating board material of the present invention, any one material selected from foamed polystyrene and rock wool, which is suitable for KSM 3808, uses a plate-type product having a specific gravity of 0.015 or more, and may use only one single type or two kinds of laminated materials.

On the other hand, in order to increase the strength of the product, the insulation board sheet material is formed by forming a constant space in the upper and lower through holes (4) (compression direction), and the front and rear through holes (5) (thickness direction), and the concrete is filled in the space when placing concrete. The concrete is integrated to enhance the strength of the product, characterized in that the increased adhesion between the concrete (1) and the insulation board board (2).

Reinforcing fiber reinforcement (3) of the present invention using a PET + PVC-coated material, each rib has a grid shape of a square hole of 10 ~ 100mm, concrete ( It is characterized by pouring in 1).

Reinforcing fiber reinforcement (3) is located on both outer sides of the insulation board board (2). The reinforcing fiber reinforcement has the shape of the string rather than the shape of the chip, so it is most suitable for increasing the tensile strength.Because of the effect of increasing the tensile strength, it is possible to manufacture a rectangular high strength panel with a length of 10 to 25 times the thickness. It is also effective in weight reduction because of its light weight.

The heat insulating material of the present invention is a board material and the shape is closely coupled with concrete, so there is no movement of air to maximize the heat insulating effect,

In addition, since the low specific gravity insulation material is used in the form of a board plate, and the reinforcing fiber reinforcement is used as a reinforcing material without using heavy metal reinforcement such as rebar and wire mesh, the weight reduction effect is increased.

The specific gravity of the present invention has a low specific gravity as the thickness of the product is high, and the specific gravity is high as the thickness of the product is thin, which is due to the difference in the weight ratio of the concrete to the thickness of the insulation thickness under the condition that the concrete thickness is constant. The product weight is about 0.45 ~ 0.79 so it floats on water. This is about 1 / 2.5 ~ 1/5 of the wet concrete weight, which can be used, which can reduce the overall load of the building.

The existing styropol panel with steel sheet has excellent insulation and workability, but it is made of flammable foamed polystyrene bonded to a thin iron plate with good thermal conductivity, so that the finish is opened so that it is vulnerable to fire and constrains its use as a building interior material. There is this. However, in the present invention, since the insulation board board material is completely impregnated with concrete, it is resistant to the influence of the external environment such as heat, moisture, and moisture, thereby increasing the fire resistance safety.

Flame retardant test results The product of the present invention was heated for 20 minutes at the temperature of 325 ℃ heat, but no combustion, flame, combustion gas, etc .. This also satisfies the requirements of quasi-non-combustible materials (KS F ISO 5660-1) of the flame retardant performance standards for building interior finishing materials.

Gypsum board and lightweight foam concrete of existing products have a weakness due to the thickness of the material and the porosity of the product due to its porosity.

The product of the present invention is not gypsum board or lightweight foam concrete, but the structure is made of concrete with high density and high strength, so that it can prevent absorption and invasion by external moisture, and the outer surface of the present product has high strength. Because it is made of concrete, it is possible to increase the practicality by enabling window frames, door lock fixing devices, nailing, etc., and it is possible to shorten the air due to the simplicity of construction compared to the existing wet method concrete pouring method in the construction site.

Hereinafter, the present invention will be described in detail with reference to examples.

Example 1

Cement, silica sand and water are mixed at 1: 1: 0.5 parts by weight, and the concrete (1) mixed with water is first introduced into a rectangular mold having an open top, and the reinforcing fiber reinforcement material (3) is disposed on the upper and lower sides. Insulating board board material (2) having a plurality of upper and lower through holes (4) and front and rear through holes (5), laminated in the order of the reinforcing fiber reinforcement (3), and then the concrete is poured again, and the concrete is poured. After filling a plurality of through holes of the insulation board board 2 completely and molding them, they were cured after a certain period of time to manufacture insulation and lightweight concrete building materials.

Example 2

Cement, silica sand, fly ash and water are mixed 1: 1 to 0.5: 0.5 parts by weight, and the concrete (1) mixed with water is first introduced into a rectangular parallelepiped forming mold, and the reinforcing fiber reinforcement (3) ), Laminated with a plurality of upper and lower through holes (4) and the front and rear through holes (5), the insulation board board member (2), reinforcing fiber reinforcement (3) in order, and then the concrete again After pouring concrete, but completely filled with a plurality of through-holes of the insulation board board material (2), and after curing for a certain period of time to prepare a thermal insulation, lightweight concrete building materials.

Example 3

Cement, bottom ash (mass formed in coal-fired power plant boiler room, 1 ~ 10mm mass particles), fly ash and water mixed 1: 1: 1: 0.5: 0.5 parts by weight and mixed with water (1) Is first put into an open rectangular parallelepiped mold, and the insulation board board having a reinforcing fiber reinforcement (3), a plurality of upper and lower through-holes (4) and the front and rear through-holes (5) through the upper and lower sides (2) ), And laminated in order of the reinforcing fiber reinforcement (3), and then the concrete is added again, and the concrete is poured, but after filling a plurality of through-holes of the insulation board board material (2) to form a predetermined period of time It cured and manufactured the insulation and light concrete building material.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a detailed view of the heat insulating and lightweight concrete building materials of the present invention, FIG. 2 is a detailed cross-sectional view of the heat insulating and light concrete building materials of the present invention, and FIG.

  Figure 4 is a detailed view of the reinforcing fiber reinforcement of the present invention, Figure 5 is a picture of the thermal insulation and lightweight concrete building material of the present invention, concrete (1), insulation board board (2), reinforcing fiber reinforcement (3), upper and lower holes ( 4), it can be seen that the front and rear through-hole 5, the molding die 100 is shown.

 Looking at the structure, the thermal insulation, lightweight concrete building material of the present invention, as shown in Figures 1 to 5,

Insulation board plate (2) having a rectangular parallelepiped shape installed in the inner center, and having a plurality of upper and lower through holes (4) and front and rear through holes (5) penetrated vertically and horizontally, and installed on front and rear surfaces of the insulation board (2). It is a heat-insulating and lightweight concrete building material composed of concrete on the outside of the mesh-shaped reinforcing fiber reinforcing material (3) and the insulating board board material (2) and reinforcing fiber reinforcing material (3).

Experimental Example (Heat Resistance Test According to Concrete Thickness)

1.Experimental conditions: used as electricity

   Experiment temperature: 325 ° C ~ 330 ° C

   Heating time: 20 minutes at the start of heating at 325 ° C

   Heating contact area: 250 mm wide and 350 mm long

Air temperature: 16 ° C

2. Insulation boards; Foamed polystyrene, suitable for KSM 3808, using plate-type products with a specific gravity of 0.015 or higher

3. reinforced fiber reinforcements; Using a PET + PVC coated material, each rib has a grid of 10 to 100 mm square holes.

Heat resistance test results according to the thicknesses of the insulating and lightweight concrete building materials prepared according to Example 1 were obtained.

  Insulation / Lightweight Concrete Building Materials Heat Resistance Test by Concrete Thickness (Surface Temperature (° C)) thickness
Elapsed time 20mm 25 mm 30 mm 35 mm 1 minute 16 ° C 16 ° C 16 ° C 16 ° C 2 minutes 16 ° C 16 ° C 16 ° C 16 ° C 3 minutes 16 ° C 16 ° C 16 ° C 16 ° C 4 minutes 18 ° C 16 ° C 16 ° C 16 ° C 5 minutes 22 ° C 19 ° C 16 ° C 16 ° C 10 minutes 48 ° C 42 ° C 36 ° C 32 ° C 15 minutes 60 ° C 56 ° C 50 ° C 46 ° C 20 minutes 68 ° C 64 ° C 60 ° C 57 ° C

  Analysis of Table 1 shows that after the start of heating at 325 ° C, changes in the external surface temperature of the concrete on the opposite side of the heating part slowed the temperature rise as the thickness of the concrete became thicker. This product is confirmed to be non-combustible according to KSF ISO 5660-1.

Experimental Example 2 (Strength Test)

  As a result of testing the concrete compressive strength of the insulating and lightweight concrete building materials manufactured according to each example, the following results were obtained.

 Compressive strength (Kg / ㎠) Curing period
Formulation Composition 7th day Day 28 90 days Example 1 251 kg / ㎠ 361 kg / ㎠ 490 kg / ㎠ Example 2 241 kg / ㎠ 356 kg / cm 2 478 kg / ㎠ Example 3 237 kg / ㎠ 343 kg / ㎠ 469 kg / ㎠

Concrete (1), insulation board board (2), reinforcing fiber reinforcement (3), upper and lower through holes (4), front and rear through holes (5), forming mold (100)

Claims (7)

In heat insulation and lightweight concrete building materials,
Insulation board plate material (2) having a rectangular parallelepiped shape installed in the inner center, and having a plurality of upper and lower through holes (4) and front and rear through holes (5) penetrated vertically and horizontally, and on the front and rear surfaces of the insulation board (2). Insulating and lightweight concrete building material, characterized in that it is configured to include a concrete (1) on the outside of the installed mesh-shaped reinforcing fiber reinforcement (3), the insulation board board material (2) and the reinforcing fiber reinforcement (3). The heat insulating and lightweight concrete building material according to claim 1, wherein the heat insulating material board (2) is any one selected from foamed polystyrene board material or rockwool board material. The heat insulating and lightweight concrete building material according to claim 1, wherein the heat insulating material board member (2) is used by mixing a foamed polystyrene board material or a form in which rock wool board material is laminated. In the manufacturing method of heat insulation and lightweight concrete building materials,
The concrete 1 is first introduced into a rectangular parallelepiped forming mold, and a reinforcing fiber reinforcing material 3, a plurality of upper and lower through holes 4 and vertically penetrating left and right, and front and rear through holes 5 are provided thereon. After stacking the insulation board board (2), reinforcing fiber reinforcement (3) in order, and then the concrete is added again, the concrete is poured, but the plurality of through-holes of the insulation board board (2) is completely filled and molded After that, after a certain period of time to cure, characterized in that the manufacturing method of thermal insulation, lightweight concrete building materials. The method of claim 4, wherein the composition of the concrete is a mixture of cement, silica sand, water and stirring. The method of claim 4, wherein the composition of the concrete is a mixture of cement, silica sand, fly ash, water and stirring. The method according to claim 4, wherein the composition of the concrete is a mixture of cement, bottom ash, fly ash, water and stirring, characterized in that the manufacturing method of heat-insulating and lightweight concrete building materials.

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