JPH05294755A - Production of interlocking block - Google Patents

Abstract

PURPOSE:To enhance a fine apparance pouring cement-based solidifying material into a formwork, then pouring liquid resin mixed with aggregate or unmixed therewith on the surface to coat the surface' thereof, thereafter curing and solidifying the same. CONSTITUTION:A bottomless frame body 2 is placed on the bottom plate 1 of a formwork to constitute many molds 3. Then cement-based solidifying material is successively poured into the molds 3 up to about 2/3 of height from a hopper 4. While vibrating the bottom plate 1 of the formwork by a vibrator or the like, the solidifying material is compressed by a compression tool 6 lowered from the upper part. After compression is finished, the compression tool 6 is raised and liquid reactive hardening type resin such as urethane resin mixes with aggregate or unmixed therewith is poured at residual 1/3 of height through an introduction nozzle 5. Then resin and the cement-based solidifying material are recompressed by the compression tool 6. After compression is finishes, the compression tool 6 is raised and the frame body 2 is detached upside to obtain an interlocking block.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to interlocking blocks.

[0002]

2. Description of the Related Art An interlocking block is a cement-based solidified product having a certain thickness (60 to 10).
It can be paved just by laying it on the smoothed sand. Usually, as the name suggests, the surroundings are formed in an uneven shape, and the blocks that touch each other are combined,
It has a structure that does not shift.

This interlocking block is very simple as compared with asphalt pavement and stone paving method, and is widely used in sidewalks, parking lots and the like. This requires only adjusting the base material with sand, and only placing blocks on the sandy ground and arranging them, so the construction period is short and no skill is required.

In the method of manufacturing the interlocking block, about two-thirds of the cement-based solidifying material is injected into the mold, and compression filling is performed while applying vibration. Next, the cement-based solidifying material is introduced into the remaining one-third by the same method. The cement-based solidifying material to be injected the second time is usually mixed with a pigment. Then, it is taken out of the mold and cured for a few weeks to solidify. Since it is removed from the mold in a short time, the cement-based solidifying material has very low water content.

[0005]

Even if such an interlocking block is used as a sidewalk, especially when used in an arcade, it is aesthetically problematic if it does not have a pigment, and a simple method. However, it is not often used in parts that require aesthetics.
Therefore, a mixture of pigments has been devised as described above, but it does not go beyond the range of colored cement and is not aesthetically sufficient.

[0006] In addition, for a portion that walks with spikes in a golf course or the like, elasticity is required on the sidewalk surface. Normally, a rubber sheet is laid on the pavement surface to give elasticity, so that it is troublesome twice. It has been pointed out that the elasticity of this surface is necessary to some extent even on a general sidewalk, and that a hard surface damages the legs and waist.

[0007]

In view of the above circumstances, the present inventor has completed the production method of the present invention as a result of earnest research, and is characterized in that a cement-based solidifying material is used. The point is that it is poured into a mold, and then a liquid resin is poured so as to cover the surface of the mold to cure and solidify it.

[0008] The cement-based solidifying material refers to a material such as cement, mortar, concrete or the like for producing a normal interlocking block. First, a part (about 1/3 to 2/3) of this cement-based solidifying material is injected into the mold. This is exactly the same as before. After this, vibration may be applied as in the conventional case to perform compression filling.

The liquid resin may be a resin that solidifies from a liquid state such as a reaction hardening type or a thermoplastic type. Further, when it is used in a place where elasticity is required, urethane type or the like having elasticity in a solidified state may be used. Further, this resin is not applied after the cement-based solidifying material is completely cured, but is injected into the mold in the manufacturing process of the interlocking block, so that it cannot be bonded to the cement-based solidifying material in such a state. must not.

As for the adhesiveness with the lower cement-based solidifying material, if it is an emulsion-based resin, it can be bonded with almost no problem. Further, even if it is solvent-based, it has an adhesive force due to the infiltration surface hardening type resin.

If stones or the like are used as the aggregate and the resin is made extremely small so that the stones are point-bonded to each other, a large number of voids are formed to provide water permeability. If the cement-based solidifying material to be injected in the first time of the interlocking block is used together as a water-permeable mixture, the water-permeable pavement with natural stone finish using the interlocking block can be made inexpensive.

This resin injection is carried out by the conventional manufacturing method.
It suffices to perform the implantation instead of the second implantation, and it can be performed by the same process as the conventional manufacturing method. However, what is injected is different. Therefore, the manufacturing process does not become complicated. However, instead of performing the resin injection process once,
You can divide it into times. For example, the first time is a method that has good adhesion to the cement-based solidifying material (epoxy or the like), and the second time is a method that has elasticity and is mixed with a pigment. As described above, it is a great feature of the method of the present invention that the manufacturing process of the conventional interlocking block can be used as it is.

Any method may be used for injecting the resin, but it is sufficient to apply pressure to each mold from an injection nozzle or simply introduce by gravity.

Further, an aggregate may be mixed in this resin. For example, rubber chips may be used to impart elasticity, and natural pebbles may be used to impart strength.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 is a perspective view showing an example of an apparatus for carrying out the method of the present invention. A frame body 2 having no bottom is placed on the mold bottom plate 1 to form a large number of molds 3. Further, a popper 4 for injecting a cement-based solidifying material and an introduction nozzle 5 for injecting a resin are movably provided in each of the molds 3. Further, a compression tool 6 for compressing after injection is provided so as to be movable up and down.

Next, the manufacturing process will be described. Figure 2
(A) shows that the cement-based solidifying material is sequentially injected into the mold 3. In this way, the cement-based solidifying material is poured into all the molds 3 at a height of about two-thirds, and compressed by the compression tool 6 descending from above. At this time, it is preferable to vibrate the form bottom plate 1 with a vibrator or the like.

When the predetermined compression is completed, the compression tool 6 is raised again, and the remaining one-third of the resin is injected from the introduction nozzle 5 as shown in FIG. 2 (b). Then, the compression tool 6 again compresses the resin and the cement-based solidifying material. When the compression is completed (usually several tens of seconds), the pressing tool 6 is raised and the frame 2 is removed upward. When the frame 2 is removed, the interlocking block, which is solidified to some extent, remains on the mold bottom plate 1 as shown in FIG.

If this is left to cure for a predetermined period (about one month), it is completely solidified and completed. At this time, whether or not the aggregate is mixed in the resin and whether or not the pigment is mixed do not have any influence on the above method.

FIG. 4 is a perspective view showing an example of the interlocking block 7 manufactured by the method of the present invention. A portion 8 in which the cement-based solidifying material is solidified is located below, and a portion 9 in which the resin is solidified is located above it. In this example, a rubber chip 10 having a size of about 3 mm to 10 mm is mixed as an aggregate. The resin is of urethane type.

[0020]

The method of the present invention has the following great advantages. Provides a completely new interlocking block. This makes it easy to impart elasticity to the surface and to impart color by mixing pigments. The applications and places of use of the interlocking block are greatly expanded. The walkways (walks with spikes) on the golf course may be constructed by simply laying the interlocking blocks by spreading sand. The operation and process can be performed in exactly the same manner as the conventional interlocking block manufacturing method.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an apparatus for carrying out the method of the present invention.

FIG. 2 is a perspective view showing steps of the method of the present invention.

FIG. 3 is a process chart showing the final stage of the method of the present invention.

FIG. 4 is a perspective view of an interlocking block manufactured by the method of the present invention.

[Explanation of symbols]

 1 Formwork Bottom Plate 2 Frame 3 Type 4 Hopper 5 Introducing Nozzle 6 Compressor 7 Interlocking Block 8 Part where Cement-based Solidifying Material is Solidified 9 Resin is Solidified 10 Rubber Chip

Claims (2)

[Claims] 1. A method for producing an interlocking block, which comprises injecting a cement-based solidifying material into a mold, then injecting a liquid resin so as to cover the surface thereof, and curing and hardening the resin. 2. The method for producing an interlocking block according to claim 1, wherein the resin is a mixture of aggregates.