KR20010047681A - A footway block having a layer of surface grinding and method for manufacturing it - Google Patents

Abstract

PURPOSE: A pedestrian block having a surface abraded layer, is provided which has excellent corrosion-resistance and durability, shows similar external appearance and surface state to that of natural stone and is cheaper than the natural stone. And a method for preparing the same is also provided. CONSTITUTION: The method comprises steps of: (i) preparing a main layer from general cement mortar materials; (ii) forming a surface layer(2) on the main layer by laminating a mortar layer(23) prepared by mixing macadam(22) materials such as granite, limestone, marble and the like and then curing; and (iii) abrading the surface layer(2) to be a smooth surface. The pedestrian block(1) comprises: (i) a main layer(3); and (ii) a surface layer(2), wherein the surface part of the surface layer is abraded to be a smooth surface.

Description

A footway block having a layer of surface grinding and method for manufacturing it}

The present invention relates to a novel construction of a sidewalk block and a method of manufacturing the same, which are constructed on the floors of various sidewalks and stadium facilities, which are urban infrastructures, and a feature of the present invention is a particle size of about 3-10 m / m at the surface layer of the sidewalk block. Reinforced mortar layer containing crushed stone powder (hereinafter referred to as "crushed stone") is laminated in duplicate, and the surface is polished smoothly to increase the hardness and durability of the sidewalk block, By the construction, the sidewalk block is smooth and beautiful to improve the decorative effect and cleanliness.

Conventional sidewalk blocks are mainly cured with mortar based on sand aggregate and are unprocessed products without surface treatment. Therefore, they have poor appearance and rough surface layer, so it is poor to sense of walking. Since it occurs early, the durability was relatively weak.

In view of the above, the material composition of the sidewalk block is cured by merging the material composition of the upper and lower layers into different materials of different ratios, and the secondary surface treatment is performed to improve the product value of the conventional sidewalk block.

There are two types of sidewalk blocks: general curing blocks made of cement mortar and natural blocks made of natural stone. However, the former has a rough surface roughened surface, resulting in poor appearance and frequent weathering. In the latter case, due to the high cost of the raw materials, it is very unreasonable in terms of cost to be widely distributed as public facilities materials, but it is difficult to be universalized except for special facilities. It is intended to exhibit the same merchandise and durability as natural stone.

1 is a perspective view of a sidewalk block according to the present invention

Figure 2 is a cross-sectional view of the sidewalk block according to the present invention

Figure 3 is a manufacturing process for manufacturing the sidewalk block according to the present invention

Figure 4 is a block diagram showing a process for manufacturing the sidewalk block of the present invention

■ Explanation of symbols used in main part of drawing ■

1: sidewalk block 2: surface layer

22: crushed stone 23: mortar

3: main floor 4: mold

5: polishing device

1 is a perspective view of a sidewalk block of the present invention, Figure 2 is a cross-sectional view of the sidewalk block of FIG.

The shape of the sidewalk block 1 may be manufactured in any form such as a rectangular parallelepiped, a cube, or a curved shape, but the main layer 3 is composed of ordinary cement mortar, and the body layer is formed. The crushed stone (22; marble, serpentine, limestone, granite, etc.) of about 8 m / m is formed into a decorative mortar layer mixed with a predetermined amount, and the surface layer 2 is mixed with cement to give a random color.

At this time, the surface layer (2) and the main layer (3) is preferably set to a thickness ratio of about 3: 7, but can be arbitrarily adjusted according to the characteristics of the use of the block products, such as durability.

Although the present invention exemplifies a two-touch method in which the aggregate material of the surface layer 2 and the main layer 3 is different, the surface layer 2 and the main layer 3 are made of the same aggregate material as required. One Touch method is also available.

Figure 3 shows an embodiment of manufacturing the production method of the present invention by a two-touch method.

Inject the mortar 23 for molding the main layer into the mold 4 and laminating the mortar 23 for shaping the surface layer mixed with the crushed stone 22 thereon to cure and finish the curing, and then polish the surface layer 2. The device 5 is polished to form a block product having a smooth and clean surface.

Referring to the configuration and manufacturing process of the aggregate according to the manufacturing method of the present invention in more detail as follows.

(1) Ingredients

① Cement: Cement used for color artificial steel interlocking block is specified in white portland cement (KSL5204), portland cement (KSL5201), blast furnace slag cement (KSL5210), fly ash cement (KSL5211), or equivalent. Use it.

② Aggregate: Use colored stone and aggregates such as marble, serpentine, limestone, granite, stone, artificial granite, and other durable and appropriate granules.

③ Pigment: Colored block is an inorganic material for concrete that has undergone normal chemical process. It is made of material that has excellent weather resistance and is harmless to block quality and environment.

(2) manufacturing process

① Weighing: Aggregate is input by measuring the exact amount by load cell.

② Mixing: Mix aggregate, cement, sand and coloring material with water according to product type. Water and cement mixing ratios are produced in dry below 25%.

③ Forming: The mixed material is supplied to the mold and is produced by vibration compression. The main layer 3 supplies a material that affects the quality, such as the strength and absorption rate of the product, and the surface layer 2 is a stone that determines the appearance of the product. And aggregates such as artificial granite. If necessary, the production method is selected according to the demand of the consumer among two-touch and one-touch methods in which the aggregate types of the main layer 3 and the surface layer 2 are different. Since the one-touch method requires a relatively large amount of production cost, the two-touch method that separates the surface layer 2 is preferably economical.

For surface treatment during molding, surface treatment can be performed by spraying water or other chemicals that are harmless to human body or natural environment by mechanical method.

④ Curing: Put it in the curing room to cure over 500 ℃ and then cure naturally.

⑤ Secondary processing: The surface of the cured product is secondaryly polished. In the secondary processing method, the surface is ground (grinding) by using an abrasive material, a method of grinding the surface in whole or in part by a mechanical method.

On the other hand, Figure 4 shows the process in a block diagram.

The sidewalk block of the present invention manufactured as described above has the following industrial effects.

① Quality improvement: Since the surface layer (2) is produced using the durable aggregate, the quality of the existing surface layer aggregate, such as strength and absorption rate is improved than the product using sand. The surface layer 2 is made of high-strength material and has been polished and has excellent wear resistance and durability.

② Advanced product: It has advanced characteristics that show the appearance and surface condition similar to granite or marble compared to simple concrete surface, and it can be processed in various shapes and colors compared to the simple form of granite or marble. And more effective harmony.

③ Economic feasibility of the product: Compared with granite or marble, it can produce mass-standardized products in various forms at a lower price, and it is more cost effective because of its efficient construction and easy maintenance.

④ Environmental preservation effect: When using granite or marble, a large amount of stone may be consumed, which may damage nature and cause waste of foreign currency, but the product manufactured by the present invention may be widely used due to environmental friendliness, which is harmless to human body or natural environment Can be.

Claims (2)

In manufacturing the sidewalk block 1; The main layer (3) is composed of a general cement mortar material, and the surface layer (2) is laminated and cured by a mortar layer (23) mixed with crushed stone (22) materials such as granite, limestone, and marble, and then the surface layer (2) thereof. Method for producing a sidewalk block having a surface polishing layer, characterized in that the grinding to a smooth surface. In constructing the sidewalk block 1; The main layer 3 is made of a general cement mortar material, the surface layer 2 is composed of a mortar layer 23 mixed with crushed stone 22 materials such as granite, limestone and marble, and the surface portion of the surface layer 2 Press block having a surface polishing layer, characterized in that the polishing surface is polished.