KR20170079395A

KR20170079395A - The drain sidewalk block and the method for manufaturing that

Info

Publication number: KR20170079395A
Application number: KR1020150189899A
Authority: KR
Inventors: 원 옥 백
Original assignee: 원 옥 백
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2017-07-10
Also published as: WO2017115908A1

Abstract

The present invention is based on the idea that the strength of the embossed portion protruding to the side of the block is excellent and the embossed portion is formed only in the high strength layer formed in the lowermost layer of the block, The present invention relates to a block having excellent state retaining ability and a method of manufacturing the same. In a block having a large number of layers, a block having a high retaining state according to the present invention is formed as a high strength layer at the lowermost portion of the block, High strength layer; A permeable layer formed on the high strength layer and composed of cement, sand and gravel; And a water permeable plaster layer formed on the permeable layer at a predetermined thickness and having a water permeability.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a block,

More specifically, the present invention relates to a block, more particularly, to a block having an excellent strength of an embossed portion protruding to the side of a block and having a creasing portion only in a high strength layer formed in the lowest layer of the block, And a method of manufacturing the same.

Generally, there are many sidewalk blocks on sidewalks. These sidewalk blocks are constructed to have various materials and functions. Especially, in recent years, it is possible to prevent the occurrence of natural disasters such as river flooding during heavy rains, and many permeable pavement blocks are being constructed to help water circulation, and the tendency is expected to be further expanded.

These permeable blocks are generally made of permeable concrete. Japanese Unexamined Patent Application Publication No. 5-305606 discloses a waterproof pavement block having a special structure in which a drain hole is formed inside a sidewalk block and is not exposed to the surface.

1, the conventional block 1 generally comprises a thin layer 10 formed on the upper layer and a body layer 20 covering the majority of the block 1 below the layer 10, . At this time, the main body layer 20 is separated from the block forming mold in a fluid state in the course of manufacturing the block, and the embossing portion 30 is formed naturally by the fluidity and gravity. As shown in Fig. 1, the embossing portion 30 is a portion protruding outward beyond the size of the upper surface or the lower surface of the block 1. As shown in Fig. 2, when the block 1 is constructed (30) of the neighboring block (1).

In the conventional blocks 1, since the booth portions 30 formed at the middle portion of the block are in contact with each other in the state of being installed, the booth portions 30 are bumped or scratched together during use after construction, A phenomenon that the part 30 disappears entirely occurs. Then, as shown in Fig. 3, the neighboring blocks 1 are in surface contact with each other, and the distance between the specific blocks becomes very large, as shown in Fig. In addition, the conventional blocks 1 are formed by reducing the thickness of the main body layer 20 in order to match the size of the embossed portion 30 to the standard, so that the strength of the embossed portion is weak and this phenomenon occurs more frequently.

In this way, there arises a problem that the block 1 is separated or broken between the blocks 1 separated by the interval.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a high strength layer formed only on the lowermost layer of the block, And a method of manufacturing the same.

According to an aspect of the present invention, there is provided a block having a plurality of layers, including: a high-strength layer formed as a high-strength layer at the lowermost portion of the block and having a crease portion formed on a side surface thereof; A permeable layer formed on the high strength layer and composed of cement, sand and gravel; And a water permeable plaster layer formed on the permeable layer at a predetermined thickness and having a water permeability.

In the present invention, the high-strength layer is preferably formed to a thickness of 10 to 30% of the entire thickness of the block.

Also, in the present invention, it is preferable that the call portion is protruded within 0.5 mm from the outer surface of the block.

In the present invention, it is preferable that the high-strength layer is formed into a mixture of 100 to 200 parts by weight of cement, 500 parts by weight of aggregate, 20 to 40 parts by weight of water and 1 to 2 parts by weight of high-performance water reducing agent.

According to the present invention, there is provided a method of manufacturing a block molding die, comprising the steps of: 1) injecting a high-strength layer forming dough having a high fluidity into a block molding die; 2) injecting a permeable layer forming dough into the block forming mold; 3) injecting a dough forming layer into the block forming die; 4) pressing each of the dough layers by pressing them from the upper side to the lower side; 5) separating the block from the block forming mold and drying the block.

In the present invention, it is preferable that the high-strength layer forming dough is applied in a thickness of 10 to 30% of the entire block thickness.

The high-strength layer forming dough is preferably mixed at a ratio of 100 to 200 parts by weight of cement, 500 parts by weight of aggregate, 20 to 40 parts by weight of water and 1 to 2 parts by weight of high-performance water reducing agent.

As shown in FIG. 5, only the high-strength layer of the block is in contact with each other because the folding portion is formed only in the lowermost block, that is, the high-strength layer, in the initial state of the construction of the present invention. This high-strength layer has very good strength and is hardly deformed or damaged even if it strikes or touches each other in the construction state. Therefore, the block having an excellent construction according to the present invention is advantageous in that the initial construction state is maintained unchanged, and the block installation interval or the floor adhesion state is maintained for a long time.

1 is a cross-sectional view showing a structure of a conventional block.
2 is a diagram of an initial state in which a conventional block is installed.
FIG. 3 is a view showing a state in which a considerable time has passed after the conventional block is installed.
4 is a cross-sectional view showing a structure of a block according to an embodiment of the present invention.
5 is a view showing an initial construction state of a block according to an embodiment of the present invention.

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

As shown in FIG. 4, the block 100 having excellent construction state retention capability according to the present embodiment may include a high strength layer 110, a permeable layer 120, and a water permeable plaster layer 130. As shown in FIG. 4, the high strength layer 110 is a high strength layer having a high strength at the lowermost portion of the block 100, and a folded call portion 112 is formed on a side surface of the high strength layer 110. The thickness h1 of the high-strength layer 110 is preferably 10 to 30% of the thickness h2 of the entire block 1.

In order for the high-strength layer 110 to have sufficient strength, the kneading should be sufficiently kneaded in the step of forming the high-strength layer 110 and sufficiently kneaded during the kneading process. Therefore, the high strength layer 110 formed of the dough in a loose state is naturally formed in the side in the manufacturing process, and if the thickness of the high strength layer 110 is thick, The width D increases proportionally.

However, in this embodiment, since the thickness h1 of the high-strength layer 110 is 10 to 30% of the total block thickness h2 as described above, even if the call portion 112 protrudes to the maximum The embossing portion 112 protrudes within 0.5 mm from the outer surface of the block and has an advantage of meeting the block production standard.

As described above, the high-strength layer 110 in the present embodiment is composed of 100 to 200 parts by weight of cement, 500 parts by weight of aggregate, 20 to 40 parts by weight of water and 1 to 2 parts by weight of high-performance water reducing agent It is preferable to form the dough into a mixed dough.

Next, the permeable layer 120 is formed on the high strength layer 110 as shown in FIG. 4, and is a component composed of cement, sand, and gravel. In the present embodiment, the permeable layer 120 has a sufficient thickness and has a composition capable of sufficiently permeating and allowing water to pass therethrough. However, the strength may be weaker than that of the high-strength layer 110, and may have a structure in which the proportion of the gravels increases from the lower layer to the upper layer.

On the other hand, as shown in FIG. 4, a drain hole 150 is further formed in the high strength layer 110 and the permeable layer 120. The drain hole 150 is formed by penetrating the strength layer 110 and the permeable layer 120 from the lower side to the upper side and the upper end thereof is formed up to the interface with the water permeable fine layer 130. The water absorbed through the water permeable fine layer 130 and the water permeable layer 120 by the drain hole 150 can be drained downward through the high strength layer 110 which is impermeable.

As shown in FIG. 4, a plurality of the drain holes 150 may be formed at a predetermined interval, and the size and number of the drain holes 150 may be variously changed.

Next, as shown in FIG. 4, the permeable fine layer 130 is formed to have a certain thickness on the permeable layer 110 and is permeable. Therefore, in the present embodiment, the permeable fine layer 130 is composed of particles for forming voids and cement, and the particles for forming voids have a diameter of about 0.5 to 4 mm and are preferably formed of dolomite or calcined stone.

Hereinafter, a method of manufacturing a block according to the present embodiment will be described.

First, 1) a step of injecting a high-strength layer forming dough having a high fluidity into a block forming mold is proceeded. The high-strength layer-forming dough is mixed in a separate mixer and supplied to the block-forming mold, and the high-strength layer-forming dough is preferably filled to a thickness of 10 to 30% of the entire block thickness.

In this embodiment, the high-strength layer forming dough is mixed at a ratio of 100 to 200 parts by weight of cement, 500 parts by weight of aggregate, 20 to 40 parts by weight of water and 1 to 2 parts by weight of high-performance water reducing agent, .

Next, 2) the step of injecting the permeable layer forming dough into the block forming mold is proceeded. Also in this step, the permeable layer forming dough is mixed in a mixer, which is provided separately as in the previous step, and then moved to the upper part of the block forming die and charged to a sufficient thickness on the high durable layer forming dough.

Next, 3) a step of putting a fine layer forming dough into the block forming mold is performed. In this step, as well as the previous steps, the mixer for forming fine matrices is mixed in a separate mixer, and then the mixture is moved to the upper part of the block molding die and put into a predetermined thickness on the matrice forming dough.

Then, 4) pressurizing from the upper side to the lower side to advance the respective dough layers. At this stage, the high-strength layer-forming dough having a sufficient degree of deformation is sufficient to the lower side, so that it has excellent strength.

Next, the step of separating 5) blocks from the block forming mold and drying is proceeded. At this stage, when the block formed and squeezed in the previous stage is separated from the molding die, the side portion of the high strength layer, which is natural to be kneaded, is projected by gravity to form a call portion. On the other hand, since the plaster layer and the permeable layer are small in kneading, they are not deformed in a molded state and retain their original state. Thus, a block having a structure as shown in FIG. 4 is completed.

100: a block having excellent construction state retention ability according to an embodiment of the present invention
110: high strength layer 120: permeable layer
130: Permeable plaster layer 150: Drain hole
1: conventional block 2:

Claims

In a multi-layered block,
A high strength layer formed as a high strength layer at the lowermost portion of the block and having a crease portion formed on a side surface thereof;
A permeable layer formed on the high strength layer and composed of cement, sand and gravel;
And a water permeable plaster layer formed on the permeable layer at a predetermined thickness and having a water permeability.

The method of claim 1, wherein the high-
Is formed to have a thickness of 10 to 30% of the total block thickness.

2. The method according to claim 1,
And protruding within 0.5 mm from the outer surface of the block.

The method of claim 1, wherein the high-
Wherein the mixture is formed into a mixture of 100 to 200 parts by weight of cement, 500 parts by weight of aggregate, 20 to 40 parts by weight of water and 1 to 2 parts by weight of high-performance water reducing agent.

1) injecting a high-strength layer forming dough having a high fluidity into a block forming mold;
2) injecting a permeable layer forming dough into the block forming mold;
3) injecting a dough forming layer into the block forming die;
4) pressing each of the dough layers by pressing them from the upper side to the lower side;
5) separating and drying the block from the block mold, and drying the block.

The method according to claim 6,
Wherein the high-strength layer forming dough is applied in a thickness of 10 to 30% of the entire block thickness.

The dough for forming a high strength layer according to claim 6,
Wherein the mixture is mixed at a ratio of 100 to 200 parts by weight of cement, 500 parts by weight of aggregate, 20 to 40 parts by weight of water and 1 to 2 parts by weight of high-performance water reducing agent.