JP5283473B2 - Weedproof concrete mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weed proof concrete mat capable of preventing concrete blocks from being raised by the weed sprouting through the gap between the concrete blocks and thereby preventing a paved side walk from being damaged, enabling working steps to be reduced, enabling smooth operations, and enabling working cost to be reduced. <P>SOLUTION: A form device is manufactured by arranging, in a generally lattice shape, partition walls with a height approximately equal to that of a side form vertically installed in a generally square frame shape, and concrete is deposited in the form device. Fiber members are input into the concrete, and a weed proof mat is joined to the concrete-deposited surface of the form device through the fiber members. After the concrete is solidified, the form device is mold-released to form the weed proof concrete mat comprising a plurality of concrete chips separated from each other in the generally meshes of a "go-board" and the weed proof sheet which is joined to the rear surfaces of the plurality of concrete chips and connects the plurality of concrete chips. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a grassproof concrete mat.

Conventionally, it has been generally performed to prepare a so-called cobblestone-shaped sidewalk by preparing and laying a plurality of concrete blocks having a so-called substantially rectangular shape, for example, on a sidewalk portion.
However, with such a laying method, when a plurality of concrete blocks are laid down, weeds etc. may sprout from the gaps between the concrete blocks and eventually the laid concrete blocks may be pushed upwards. There was a problem that the formed sidewalk would be damaged in a short time.

Here, it is conceivable to lay a so-called weedproof sheet on the construction site first, and then lay a concrete block, but there are many troublesome work processes, which in turn increases the work cost significantly. .
Furthermore, it is particularly difficult to match the joints in the work of first laying a weedproof sheet and then laying a concrete block in a so-called uneven portion, and countermeasures have been demanded.
Further, for example, in order to lay a grassproof mat around a structure such as a utility pole, the conventional grassproof sheet laying method has a problem that it is extremely troublesome and labor-intensive.

JP 2005-307518 A

  Thus, the present invention has been devised in order to solve the above-described conventional problems. When a plurality of concrete blocks are laid, weeds bud from the gaps between the concrete blocks, and the laid concrete block is moved upward. The sidewalk that has been laid is not damaged in a short period of time, and a so-called grass protection sheet is first laid on the construction site, and then a concrete block is laid. Since it is not necessary, so-called troublesome work processes can be reduced, and the work can be performed smoothly and the work cost can be reduced. In particular, there is no need to lay and install concrete blocks. The purpose of the present invention is to provide a grassproof concrete mat that can be easily laid, for example, when a grassproof mat is laid around a structure such as a utility pole. Is.

The grassproof concrete mat according to the present invention is:
It has a substantially rectangular frame shape is erected the side mold substantially equal to the height, to prepare a mold apparatus by arranging a partition wall formed in substantially triangular cross-section in a substantially grid shape, mold frame Concrete is placed in the device,
The concrete is prepared by kneading a fiber member in advance before placing, and sticking a grassproof mat to the concrete placing surface with the fiber member exposed on the concrete as an adhesive ,
After concrete hardening, and demolding are closely arranged in parallel in a substantially grid pattern, and a plurality of concrete chips, each separated, is adhered to the back surface side of the plurality of concrete chips, the Forming a grass-proof concrete mat from a grass-proof sheet connecting a plurality of concrete chips ,
A plurality of concrete chips demolded from the formwork device are chamfered by a partition wall formed in a substantially triangular cross section and formed as a slope with a downward slope, and a cross section is formed between the plurality of concrete chips. A substantially inverted triangular groove is formed,
It is characterized by
Or
A plurality of concrete chips formed in a substantially square shape are arranged in a substantially grid pattern without any gaps , and a weedproof sheet is attached to the back side of the concrete chips, and is manufactured by the manufacturing method according to claim 1. A weedproof concrete mat,
The weedproof concrete mat can be folded between a plurality of concrete chips arranged in parallel with no gaps in the shape of the substantially grid.
It is characterized by
Or
A plurality of concrete chips formed in a substantially square shape are arranged in a substantially grid pattern without gaps , and a weedproof sheet is attached to the back side, and the weedproof concrete manufactured by the manufacturing method according to claim 1 Mat,
The weedproof concrete mat was made freely separable between a plurality of concrete chips arranged side by side without any gaps in the substantially grid pattern,
It is characterized by
Or
The plurality of concrete chips are formed in a rectangular shape or a triangular shape,
It is characterized by this.

In the case of the grassproof concrete mat according to the present invention, when a plurality of concrete blocks are laid, weeds and the like are not blown from the gaps between the concrete blocks, and thus the laid concrete blocks are not pushed upward. The pedestrian sidewalk will not be damaged in a short period of time, and furthermore, it is not necessary to take the process of laying a so-called grass protection sheet at the construction site first and then laying the concrete block, so the work process can be reduced. As a result, the work can be performed smoothly and the work cost can be reduced, and furthermore, even in a so-called uneven part, a grassproof sheet is first laid and then a concrete block is not laid. So you can easily perform operations such as matching seams. For example, when laying weed mat surrounding structures such as utility poles also, an excellent effect of the neat, also possible to provide a weed concrete mat can be performed very easily laying work.

Hereinafter, the present invention will be described based on embodiments shown in the drawings.
First, the manufacturing process of the weedproof concrete mat 1 by the manufacturing method of this invention is demonstrated to FIG. 1 thru | or FIG.

First, a mold apparatus 4 is prepared in which partition walls 3 having a height substantially equal to the height of the side molds 2.
Here, although it is the shape of the partition wall 3, as is understood from FIG. 3, the one having a substantially triangular shape in cross section is used. Thus, when the mold is removed, the plurality of concrete chips 8 are formed as chamfered slopes by chamfering the four side surfaces of the concrete chips 8 (see FIG. 4).
Then, the concrete 5 is placed in the mold apparatus 4 (see FIG. 1). At this time, as described above, each partition wall 3 has a height substantially equal to the height of the side mold frame 2 in the mold apparatus 4, so that the filled concrete 5 is formed in a substantially square shape by each partition wall 3. Divided into concrete chips 8.

In addition, the fiber member 6 is kneaded with the concrete 5 to be placed in advance before the placement.
And the weedproof mat 7 mentioned later and the concrete surface part are adhere | attached better by this fiber member 6 (refer FIG. 2).
Here, the fiber member 6 is preferably made of finely chopped fibrous material, for example, fibrous glass, resin, metal, or the like.

In addition, after placement, a so-called grassproof mat 7 is attached on the surface of the concrete 5 in which the fiber member 6 is kneaded.
The weedproof mat 7 is reliably bonded to the surface of the concrete 5 by the fiber member 6 exposed on the surface of the concrete 5 serving as an adhesive with the concrete 5.

  As is understood from the figure, the weedproof mat 7 has a certain width outward from at least two adjacent outer peripheries 9 and 9 of the four outer peripheries 9. Overhanging portions 10 and 10 are formed to be held out. As shown in FIGS. 3 and 4, the width of the overhanging portion 10 is substantially the same as the size of one concrete chip 8 formed in a substantially grid pattern. It is.

Then, the concrete 5 is placed in the formwork apparatus 4, and the grass-proofing mat 7 is attached to the surface of the placed concrete 5, and after curing and solidifying for a predetermined period from the state, the mold is placed. It is removed from the frame device 4 to form a so-called grassproof concrete mat 1.
When the mold is removed from the formwork device 4, the substantially square concrete chips 8 are arranged in parallel on the surface side of the weedproof concrete mat 1 so as to form a substantially grid pattern, and are separated from each other. However, it is formed in a state of being connected by the weedproof mat 7.

Next, the structure of this weedproof mat 7 is demonstrated.
For example, the herbicidal mat 7 may be composed of a general nonwoven fabric, but for example, it may be composed of a tough sheet with extremely high strength and dimensional stability by laminating and compressing 100% polypropylene in any direction. I do not care.
Such a member is particularly suitable for civil engineering applications (such as landscaping fabrics) because the fibers are thick and tough.

Furthermore, polypropylene is said to be durable because it burns completely at low temperatures and does not hydrolyze.
Therefore, according to such a weedproof mat 7, the sunlight is surely blocked and the growth of weeds is suppressed. For example, even weeds with strong growth potential such as reed, chigaya and horsetail can suppress their growth. This is especially true for weak weeds such as dandelions.

In addition, the grass protection mat 7 also prevents gravel sinking. That is, if the grass mat 7 is laid under the gravel, the gravel will not sink and mix with the soil, and there is no need to replenish the gravel.
It is also durable and lasts for about 10 years in an exposed state, or lasts semipermanently if sunlight is avoided, such as under gravel.
In addition, it has excellent water permeability and allows water to pass through so that rainwater does not accumulate. And it is excellent in safety and uses no chemicals, so there is no risk of affecting the environment.

Next, the usage state of the grassproof concrete mat 1 according to the present invention will be described.
The above-described grass-proof concrete mat 1 having a plurality of substantially square shapes and having separated concrete chips 8 is transported to a predetermined laying place and laid.
At that time, a grassproof mat 7 is attached to the back side of the grassproof concrete mat 1, and the overhanging portions 10 and 8 of the grassproof mat 7 are from the adjacent outer peripheries 7 and 7 of the grassproof concrete mat 1. It is configured to project outward.
Therefore, when laying side by side, the outer periphery 7 portion where the overhanging portion 10 of the herbicidal concrete mat 1 to be laid next is overlaid on the overhanging portion 10 of the weedproof concrete 1 that has been previously laid, It is assumed that the grassproof concrete mat 1 is laid in close contact with the outer periphery 7.

By the way, the thick weedproof concrete mat 1 can also be formed by changing the height of the formwork device 4 and the height of the partition wall 3 associated therewith. In other words, when a thick type of grass-proof concrete mat 1 is required, a high formwork device 4 may be used.
In addition, the thin type of grass-proof concrete mat 1 can be used, for example, in a place where the unevenness is severe. That is, since the grass-proof concrete mat 1 can be used by being bent, broken or easily processed between the concrete chip 8 having the substantially square shape and the concrete chip 8 in a portion having a large unevenness. It is.

Furthermore, a large amount of the same size of the weedproof concrete mat 1 is manufactured from one type of the formwork apparatus 4 whose size is determined, but at the construction site, it is half the size. Or a third size may be required.
In such a case, it can be easily cut and used between the concrete chips 8 and 8 like a plate-shaped chocolate, for example.

Furthermore, use as shown in FIGS. In other words, the middle portion of the grass-proof concrete mat 1 is cut out, and a power pole or the like standing on the portion is passed through, so that it can be laid around the power pole.
Thus, for example, even if the laying construction location is a location having a curved surface (convex surface, concave surface), the grassproof concrete mat 1 of the present invention can be easily adapted, and as described above, cutting at the site. Therefore, it is possible to design freely even at the part where the structure is engaged.

In addition, even after the laying construction, the laying location having the ground displacement is naturally adapted to the ground shape and the adhesion coating is maintained, and the soil surface is continuously protected for a long period of time.
Furthermore, since the grassproof concrete mat 1 according to the present invention is relatively light, it can be handled manually, and operations such as heavy machinery are not used. It is one of the features that laying construction can be easily performed in this way.

In addition, since it is composed of the weedproof mat 7 and the concrete chips 8 attached to the back surface of the mat, it is not necessary to separate the weedproof sheet laying work and the concrete block laying work at the laying construction site, Excellent workability on site.
Furthermore, it has an excellent erosion prevention effect, and it exhibits an excellent prevention effect against erosion due to rainwater, etc., due to the synergistic effect of the weedproof mat 7 and the concrete chips 8 made of high-strength concrete. It has become.

Further, the middle portion of the weedproof concrete mat 1 is cut out, and a standing electric pole or the like is passed through that portion, and the grassproof concrete mat 1 can be laid around the electric pole or the like.
The shape of the concrete chip 8 is not limited to a square shape, but may be a rectangular shape or a triangular shape.

It is explanatory drawing (the 1) explaining the manufacturing method of the weedproof concrete mat by this invention. It is explanatory drawing (the 2) explaining the manufacturing method of the weedproof concrete mat by this invention. It is explanatory drawing (the 3) explaining the manufacturing method of the weedproof concrete mat by this invention. It is explanatory drawing (the 4) explaining the manufacturing method of the weedproof concrete mat by this invention. It is explanatory drawing (the 5) explaining the manufacturing method of the weedproof concrete mat by this invention. It is explanatory drawing (the 1) explaining the structure of the concrete chip | tip by this invention. It is explanatory drawing (the 2) explaining the structure of the concrete chip | tip by this invention. It is explanatory drawing (the 1) explaining the use condition of the weedproof concrete mat by this invention. It is explanatory drawing (the 2) explaining the use condition of the weedproof concrete mat by this invention.

DESCRIPTION OF SYMBOLS 1 Weedproof concrete mat 2 Side formwork 3 Partition wall 4 Formwork apparatus 5 Concrete 6 Fiber member 7 Weedproof mat 8 Concrete chip 9 Outer periphery 10 Overhang part

Claims (4)

It has a substantially rectangular frame shape is erected the side mold substantially equal to the height, to prepare a mold apparatus by arranging a partition wall formed in substantially triangular cross-section in a substantially grid shape, mold frame Concrete is placed in the device,
The concrete is prepared by kneading a fiber member in advance before placing, and sticking a grassproof mat to the concrete placing surface with the fiber member exposed on the concrete as an adhesive ,
After concrete hardening, and demolding are closely arranged in parallel in a substantially grid pattern, and a plurality of concrete chips, each separated, is adhered to the back surface side of the plurality of concrete chips, the Forming a grass-proof concrete mat from a grass-proof sheet connecting a plurality of concrete chips ,
A plurality of concrete chips demolded from the formwork device are chamfered by a partition wall formed in a substantially triangular cross section and formed as a slope with a downward slope, and a cross section is formed between the plurality of concrete chips. A substantially inverted triangular groove is formed,
The manufacturing method of the weedproof concrete mat characterized by the above-mentioned.
A plurality of concrete chips formed in a substantially square shape are arranged in a substantially grid pattern without any gaps , and a weedproof sheet is attached to the back side of the concrete chips, and is manufactured by the manufacturing method according to claim 1. A weedproof concrete mat,
The weedproof concrete mat can be folded between a plurality of concrete chips arranged in parallel with no gaps in the shape of the substantially grid.
Weedproof concrete mat characterized by that.
A plurality of concrete chips formed in a substantially square shape are arranged in a substantially grid pattern without gaps , and a weedproof sheet is attached to the back side, and the weedproof concrete manufactured by the manufacturing method according to claim 1 Mat,
The weedproof concrete mat was made freely separable between a plurality of concrete chips arranged side by side without any gaps in the substantially grid pattern,
Weedproof concrete mat characterized by that.
The plurality of concrete chips are formed in a rectangular shape or a triangular shape,
The weedproof concrete mat according to claim 2 or claim 3, wherein

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