KR101210378B1 - High strength block with light weight - Google Patents

Abstract

PURPOSE: A high-strength lightweight block is provided to improve the durability of a building by improving cohesion between adjacent blocks. CONSTITUTION: A high-strength lightweight block comprises 25-35 weight% of cement, 40-50 weight% of aggregate, 15-25 weight% of waste plastic, 2-5 weight% of rice hull, 0.1-0.5 weight% of methyl cellulose, and pine skin powder. The aggregate is composed of one or more of sand and gravel.

Description

High Strength Lightweight Blocks {HIGH STRENGTH BLOCK WITH LIGHT WEIGHT}

The present invention relates to a high strength light weight block, and more particularly, to a high strength light weight block used as a finishing material for a building.

In general, cement blocks are manufactured by mixing cement and aggregate at an appropriate ratio, filling them in a mold, and then forming a block by vibrating pressurization and drying it after steam maintenance.

However, such a conventional cement block is prone to cracking and breakage of the cement block and cement block bond when the external force is applied in the horizontal direction due to an earthquake or the like, is not excellent in insulation and sound insulation, and is not waterproof at all.

Therefore, when constructing a building using cement blocks, there is a case in which the block must be cut and inserted, and reinforcement work for the broken cutting surface is necessary.

In addition, there is a problem in that the building cost and construction cost increases because the insulation or plastering member and the waterproof member to be installed separately for the insulation and waterproofing of the building. That is, the heat insulating material should be installed inside the block, and another brick or plastering member should be installed on the other side of the heat insulating material, and should be waterproofed.

In addition, since the conventional cement block weighs a lot, it is not easy to transport, and there is a disadvantage in that the transport cost increases. In addition, since it has a huge impact on the load of the building constructed using this, not only the design and construction should be made in consideration of the heavy load of the building, but also the fatigue of the building is severe after the completion of the building, and fatigue breakdown is likely to occur. Especially in the case of high-rise buildings, the occurrence of such a phenomenon occurs more frequently, and causes a shortening of the life of the building.

Patent Publication No. 0791960 (December 28, 2007): Stacked block and manufacturing method

The present invention has an object to provide a high-strength lightweight block that can increase the strength while reducing the weight.

In addition, the present invention has another object to provide a high-strength lightweight block that can increase the coupling force between neighboring blocks.

In addition, the present invention has another object to provide a high-strength lightweight block excellent in heat insulation and sound insulation, waterproof.

High strength lightweight block according to the present invention, cement; Aggregate consisting of at least one of sand and gravel; plastic; chaff; And it may include methyl cellulose.

Preferably, the cement is 25 to 35 parts by weight, the aggregate is 40 to 50 parts by weight, the plastic is 15 to 25 parts by weight, the chaff is 2 to 5 parts by weight, and the methyl cellulose is 0.1 to 0.5 parts by weight Can be.

Preferably, it may further include a pine skin.

Preferably, the pine skin may be 0.5 to 3 parts by weight.

Preferably, the pine shell is a pulverized powder, and the plastic may be waste plastic.

Preferably, the cement is 30 to 32 parts by weight, the aggregate is 44 to 46 parts by weight, the plastic is 19 to 21 parts by weight, the chaff is 3 to 3.5 parts by weight, the pine skin is 1.5 to 2 parts by weight. And the methyl cellulose may be 0.35 to 4 parts by weight.

Preferably, a step may be formed on one or more surfaces.

The disclosed technique may have the following effects. However, since a specific embodiment does not mean to include all of the following effects or only the following effects, it should not be understood that the scope of the disclosed technology is limited thereto.

High-strength lightweight block according to the present invention can increase the strength while reducing the weight, and can increase the bonding strength between neighboring blocks, it is possible to build a more robust, durable construction, excellent insulation and sound insulation, waterproof Since it is possible, there is an effect that can reduce the construction cost and the construction of excellent buildings.

1 is a perspective view of a coupling block of a high strength lightweight block according to one embodiment of the present invention;
2 is a perspective view of a basic block of a high strength lightweight block according to one embodiment of the present invention;
3 is a view showing the construction of the coupling block and the foundation block of the high strength lightweight block according to an embodiment of the present invention, and
4 is a view showing a manufacturing process of a coupling block of a high strength lightweight block according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a perspective view of a coupling block of a high strength lightweight block according to an embodiment of the present invention, and FIG. 2 is a perspective view of a foundation block of a high strength lightweight block according to an embodiment of the present invention.

The coupling block of the high-strength lightweight block according to an embodiment of the present invention has an upper and lower surfaces, front and rear surfaces, and left and right surfaces, and is formed to be recessed to a predetermined depth so that the main coupling portion 10 is stepped on the upper portion, and the sub coupling portion on the lower portion. It is formed recessed so that 11 is stepped. At this time, the sub coupling portion 11 is formed at a diagonal position across the coupling block from the position of the main coupling portion 10, the depression depth of the sub coupling portion 11 is shallower than the depression depth of the main coupling portion 10. However, according to another embodiment of the present invention, the depth of depression of the main coupling portion 10 and the sub coupling portion 11 may be the same.

The foundation block of the high-strength lightweight block according to an embodiment of the present invention has an upper and lower surfaces, front and rear surfaces, and left and right surfaces, and is formed to be recessed to a predetermined depth so that the basic main coupling portion 20 is stepped on the upper portion.

3 is a view showing the construction coupling of the coupling block and the foundation block of the high-strength lightweight block according to an embodiment of the present invention.

The foundation block is located on the ground, for example, and the coupling block is coupled to the foundation block, the upper side on which the main coupling portion 10 of the coupling block is formed, and the upper side on which the basic main coupling portion 20 of the foundation block is formed. Are interlocked and joined together. In addition, the coupling blocks are stacked and coupled to each other, and the upper side where the main coupling portion 10 is formed is coupled to the upper sides, and the lower side where the sub coupling portion 11 is formed is coupled to the lower sides. Bonding between the coupling blocks and between the coupling block and the base block by a filler, in accordance with an embodiment of the present invention, the filler may be mortar, tile bond, and chemical, but is not limited to this between the blocks Anything that can be fixed is possible.

In other words, because they are coupled to each other by stepping, compared to the general block that is coupled to each other in the plane, the bonding force is excellent and more solid construction is possible.

The high strength lightweight block according to one embodiment of the present invention includes cement, aggregate, waste plastic, rice hull, methylcellulose, and pine shell.

The cement may include 25 to 35 parts by weight, the aggregate may include 40 to 50 parts by weight, the aggregate may be sand, gravel, or a mixture thereof, preferably 30 parts by weight of cement, and 45 parts by weight of aggregate. have.

Waste plastics (waste synthetic resin) may contain 15 to 25 parts by weight, preferably 20 parts by weight. Due to the waste plastic, the strength of the block can be improved, and the weight can be reduced. By using the waste plastic as waste, it is possible to reduce the block manufacturing cost and to manufacture the eco-friendly block by recycling resources. On the other hand, the waste plastic is preferably pulverized and blended.

Rice husks include 2 to 5 parts by weight as an anti-separation stabilizer, preferably 3.3 parts by weight. By using rice hulls, the weight of the block can be reduced, and excellent heat insulation and heat retention can be obtained. In addition, it can have a sound insulation to reduce the noise through the block, and by using the agricultural waste chaff can reduce the waste disposal cost, and at the same time can reduce the production cost of the block. On the other hand, rice hulls are preferably pulverized and blended.

Pine shells, which are processed into a powder form by grinding the bark of the pine, 0.5 to 3 parts by weight, preferably 1.7 parts by weight may be included, the strength of the block can be improved. Particularly, the pine resin contained in the pine skin is a natural resin composed of resin powder (rosin), terebin oil, levopyrimic acid, neoabietinic acid, etc. Due to the hardening property, the strength of the block can be greatly improved.

Methyl cellulose includes 0.1 to 0.5 parts by weight as an adhesive, preferably 0.37 parts by weight. Methyl cellulose densify pores between compositions such as cement to increase adhesion and improve watertightness to increase the strength of the block and enable waterproofing.

Chaff, methylcellulose, and pine shells are natural materials, and the high strength lightweight blocks according to the present invention are well-being building materials that are more environmentally friendly and more harmless to the human body than ordinary blocks containing chemical components.

4 is a view showing a manufacturing process of a combined block of a high strength lightweight block according to an embodiment of the present invention, the high strength lightweight block according to an embodiment of the present invention can be manufactured through the following steps.

First, 31 parts by weight of cement, 44 parts by weight of sand, 19 parts by weight of waste plastics, 3.3 parts by weight of chaff, 1.7 parts by weight of pine skin, 0.37 parts by weight of methyl cellulose, and water were added to a mixer (S1), and the mixed concrete The composition is mixed to mix well (S2), the mixed concrete composition is molded into a mold and vibrated under pressure (S3), cured for 10 hours or more (S4), and finally demolded (S5) to complete the block. .

Hereinafter, the present invention will be described in detail through examples.

On the other hand, the content unit 'parts by weight' used as a unit of the content in the present invention indicates a relative content, even if a separate reference content for the relative parts by weight is not explicitly stated, to which the present invention belongs Those skilled in the art will have no difficulty determining the relative content of each component of the present invention.

Example 1

31 parts by weight of cement, 44 parts by weight of sand, 19 parts by weight of waste plastics, 1.7 parts by weight of pine shells, 0.37 parts by weight of methylcellulose, and 1 to 5 parts by weight of chaff are added.

The composition was mixed in a mixer for 10 minutes, cured for 15 hours in a mold to demould, and a concrete test specimen was prepared. The bending strength and the compressive strength of the test specimen were measured according to KS F 4004: 2011.

cement
(Parts by weight) sand
(Parts by weight) Waste plastic
(Parts by weight) chaff
(Parts by weight) Pine jacket
(Parts by weight) Methylcellulose
(Parts by weight) Compressive strength
(N / mm < 2 & Thermal conductivity
(W / mK) 31





44





19





One 1.7





0.37





4.6 0.4 1.5 4.5 0.37 2 4.5 0.35 2.5 4.4 0.32 3 4.3 0.3 3.5 4.2 0.27 4 4.1 0.24 4.5 3.5 0.22 5 2.9 0.2

The greater the amount of rice hulls, the lower the strength, but the thermal conductivity was also lowered and the insulation was excellent. Therefore, according to one embodiment of the present invention, 3 to 4 parts by weight of chaff satisfies both strength and heat insulation.

The thermal conductivity is 0.24W / mk to 0.3W / mk at 3 to 4 parts by weight of rice hull, with a thermal conductivity of 1.0W / mk of a typical concrete block (weight) and a thermal conductivity of 0.7W / mk (light weight) of a concrete block (light). Compared with the Energy Saving Design Criteria, 2010, Korea Energy Management Corporation).

Example  2

31 parts by weight of cement, 44 parts by weight of sand, 19 parts by weight of waste plastics, 3.5 parts by weight of chaff, 0.37 parts by weight of methylcellulose, and 0.5 to 4 parts by weight of pine shells are added.

The composition was mixed in a mixer for 10 minutes, cured for 15 hours in a mold to demould, and a concrete test specimen was prepared. The bending strength and the compressive strength of the test specimen were measured according to KS F 4004: 2011.

cement
(Parts by weight) sand
(Parts by weight) Waste plastic
(Parts by weight) chaff
(Parts by weight) Pine jacket
(Parts by weight) Methylcellulose
(Parts by weight) Compressive strength
(N / mm < 2 & 31





44





19





3.3





0.5 0.37





3.8 One 4 1.5 4.3 2 4.3 2.5 4 3 3.6 3.5 3.2 4 3

Pine jacket is excellent in strength from 1 to 2.5 parts by weight, but preferably from 1.5 to 2 parts by weight.

According to the high-strength lightweight block according to the present invention, it is possible to increase the strength while reducing the weight, excellent insulation and sound insulation, waterproof is possible to reduce the construction cost and construction of excellent buildings.

In other words, by using chaff as an anti-separation stabilizer and adding pine shells, the block can be lightened, has excellent thermal insulation, thermal insulation, sound insulation, and waterproofness, and can significantly improve the strength of the block.

The high-strength lightweight block according to the present invention is a well-being building material that is environmentally friendly and more harmless to human bodies by using chaff, which is a natural material, and pine shell.

In addition, by using the agricultural waste chaff, and waste plastic waste waste can reduce the waste disposal cost, while reducing the production cost of the block, it is possible to manufacture the eco-friendly block by recycling resources.

In addition, since the amount of cement and aggregate can be significantly reduced, economical and environmentally friendly block production is possible.

In addition, since the neighboring blocks can be secured by the main coupling portion 10 and the sub coupling portion 11 securely coupled to the step, the coupling force can be increased, so that the construction of a more robust and durable building is possible.

In addition, the fatigue can be reduced by the weight applied to the building, etc., due to the reduced weight of the block, so that the life of the building can be extended, and since it is self-insulating and soundproof, no separate insulation means and styrofoam are needed. The air can be shortened, and the fuel cost and the construction cost can be reduced.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Various modifications and variations are possible within the scope of equivalents of the claims to be described.

10: main coupling portion 11: sub coupling portion
20: foundation main coupling part

Claims (7)

cement;
Aggregate consisting of at least one of sand and gravel;
plastic;
chaff;
Methyl cellulose; And
Pine jacket
Including,
The pine shell is a high strength lightweight block, characterized in that 0.5 to 3 parts by weight.
The method of claim 1,
The cement is 25 to 35 parts by weight, the aggregate is 40 to 50 parts by weight, the plastic is 15 to 25 parts by weight, the chaff is 2 to 5 parts by weight, and the methyl cellulose is characterized in that 0.1 to 0.5 parts by weight High strength lightweight block.
delete delete The method of claim 1,
The pine shell is a pulverized powder, the plastic is a waste plastic, characterized in that the waste plastic.
delete The method according to any one of claims 1, 2 and 5,
High strength lightweight block, characterized in that the step is formed on one or more sides.

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