JP6434592B1 - Method for weeding and preventing growth of useless plants - Google Patents

Abstract

An object of the present invention is to prevent weeding and prevention of useless plants over a long period of time.
SOLUTION: Weeding and prevention of useless plants growing in a gap 100 on a road, and washing the gap 100 using a high-pressure washing machine 10 to wash out the useless plants and the sediment deposited there. After 100 is exposed, paste caulking material 20 is filled into exposed gap 100. In addition, when filling the caulking material 20, a space region R in which the caulking material 20 is not filled is provided from the upper entrance 100 a of the gap 100.
[Selection] Figure 1

Description

  The present invention relates to a method for preventing weeds and preventing growth of useless plants such as weeds that grow in gaps. For example, gaps between asphalt paved roads (including sidewalks) and concrete secondary products such as pedestrian road boundary blocks, joints such as spread blocks, cracks in concrete surfaces placed on flat surfaces, etc. The present invention relates to a method for preventing weeds and preventing growth of useless plants that grow in the gaps between the two.

On public roads (pedestrian roads managed by the national government and local governments), “weeding work” is performed about once or twice a year (also called “maintenance work”) during the summer. This mainly represents removal of weeds from the median strip (green zone), gaps between pavement and pedestrian boundary blocks, joints of concrete pavement, etc., so-called “mowing work”, but is generally marketed Because of the work that is mainly done by the cutting mower, the vicious cycle of weeds growing and prospering is repeated by leaving “roots” in the ground.
One of the reasons why weeding is necessary is “maintenance of structures”. By neglecting weeding, the environment gradually changes from small grass to an environment where large trees grow, and eventually destruction to the point where the original role of the structure can no longer be achieved (the paving is destroyed as the plant grows) Damage will occur.) In order to prevent this, weeding work every year is indispensable. This is why weeding is called “maintenance work”.
The reason why weeds that grow in gaps such as interlocking blocks need to be removed is “maintenance of landscape”. This is also one of “maintenance work”.
Another major role of “weeding” is “preventing traffic accidents”. Weeds that grow on the sidewalks and median strips block the driver's field of view and pose a risk of causing serious accidents such as delaying the discovery of oncoming vehicles and pedestrians. Weeding work plays a very important role from the viewpoint of preventing traffic accidents.

  However, the content of the maintenance work is “weeding (cutting)” using a mower, and because it has not reached “cutting roots”, the plant grows in the same place every year, and the same section must be cut repeatedly every year. It is in an economic vicious circle. Therefore, the administration, especially local governments, was anxious for the emergence of some method that did not grow grass for many years.

  On the other hand, after weeds that grow around the curbs on roads and sidewalks and in gutters are removed with a high-pressure washing machine, they are filled with dry sand containing a solidifying agent with a compressor, and water is sprayed to harden. It is disclosed (for example, see Patent Document 1).

JP 2003-328333 A

However, in the method described in Patent Document 1, after weeds have been removed, dry sand containing a solidifying agent is filled, and water is sprayed and hardened, so that weeds grow quickly and are fragile. There's a problem.
In particular, if distortion occurs due to distortion of asphalt due to secular change, distortion due to shrinkage of concrete structures, subsidence due to ground subsidence, loss due to external factors, or wrinkles caused by passing vehicles, solidify If you just pack the dry sand containing the agent and harden it, it will break down easily and weeds will grow there. Therefore, long-term durability cannot be expected.
That is, the material cured by the solidifying agent is vulnerable to displacement, and the filled material itself may be distorted and cracked. In addition, asphalt has the feature that it is easily deformed and displaced (softens) by heat, so it can be easily imagined that it gradually deforms over time and the distortion (clearance) increases. is there. Assuming that, it is clear that the filler (material) should have some degree of plasticity.
Therefore, the idea of “fill the gap”, “just hard”, “just hard” is wrong.
Patent Document 1 does not specifically describe what “dried sand containing a solidifying agent” is.

  Accordingly, an object of the present invention is to prevent weeding and growth prevention of useless plants over a long period of time.

In order to achieve the above object, the present invention provides a method for weeding and preventing growth of useless plants that grow in a gap (100) on a road,
The gap (100) is washed using a high-pressure washing machine (10) to wash out unwanted plants and the sediment deposited on the gap to expose the gap (100), and then to expose the gap. It intended to fill caulking material (20), when filling the caulking material (20), the caulking material from the upper inlet (100a) of said gap (100) a region (R) which is not filled with (20), wherein Provided at 10 mm or less from the upper entrance (100a) of the gap (100), by forming a soil in the gap (100) and growing plants there, the direct sunlight is blocked, and the caulking material ( 20) is protected .

Further, the present invention is characterized in that the region (R) not filled with the caulking material (20) is provided at 5 to 10 mm or less from the upper entrance (100a) of the gap (100).

  In addition, the symbol in the said parenthesis shows the corresponding element or corresponding matter published in the form for implementing invention mentioned later and drawing.

According to the present invention, the useless plants and the earth and sand deposited thereon are washed out by washing the gaps using a high-pressure washer, so that the useless plants can be easily removed from the roots in a short time. , Make the gap clean and exposed.
And since the paste-like caulking material is filled in the exposed gap, it is rich in adhesiveness and flexibility, and as shown in the conventional example, it is different from the one in which the gap is simply pressed and hardened with dry sand containing a solidifying agent. Therefore, even if a displacement such as distortion occurs in the gap, it can follow.
Therefore, weeding and prevention of growth of useless plants can be achieved over a long period of time.

Further, according to the present invention, when filling the caulking material, the area where the caulking material is not filled from the upper entrance of the gap is intentionally provided, for example, 10 mm or less. Dust infiltrates and accumulates and "soils", and if seeds are mixed there, it germinates and grows to become weeds.
However, since plants grown on a soil with a thickness of about 10 mm are almost limited to low grasses, by forming the soil, the soil blocks direct sunlight and protects the caulking material from ultraviolet rays and heat. A special effect is obtained.
Thus, the idea of providing a region not filled with the caulking material from the upper entrance of the gap when filling the caulking material so as to form the soil is extremely novel and does not exist conventionally.

  In addition, like the method for preventing weeds and growth of useless plants of the present invention, after washing out the useless plants and the earth and sand deposited thereon by washing the gaps using a high-pressure washing machine, the exposed gaps are pasty. The point of filling the caulking material is not described in Patent Document 1 described above.

It is sectional drawing which shows the process of the weeding of a useless plant and growth prevention method which concern on embodiment of this invention. It is sectional drawing which illustrated the mode after performing the weeding and growth prevention method of useless plants which concern on this embodiment.

  With reference to drawings, the weeding and growth prevention method of useless plants concerning an embodiment of the present invention are explained.

  The useless plant weeding and growth prevention method according to the embodiment of the present invention includes a high-pressure washing step, a coking filling step, and a coating film forming step, and is carried out in this order. The coating film forming step can be omitted.

(1) High-pressure washing process In the high-pressure washing process, as shown in FIG. 1A, useless plants such as weeds growing in the gap 100 by washing the gap 100 on the road using the high-pressure washing machine 10 are removed. While removing from the root, the earth and sand deposited there are washed out to expose the gap 100.
The gap 100 here is, for example, a gap between an asphalt-paved road (including a sidewalk) and a concrete secondary product such as a pedestrian road boundary block, or a joint or a flat surface such as a spread block. Represents cracks in the concrete surface, joints on concrete pavements, road shoulders, etc.

Here, the high-pressure washing machine 10 to be used can be sufficiently used as long as it has a pressure that is used for car washing in a general household. Since there is no need to pierce the pavement surface, an extra high pressure is not required.
The tube tip of the high pressure washer 10 is directed to the gap 100, and in addition to weeds growing there, the accumulated sand, dust and the like are washed out and washed away. In some cases, “gravel (pebbles)” may be caught, but if it is difficult to remove, it may be left unattended.
The household high-pressure washing machine 10 is very easy to handle. If there is a household power supply nearby, weeding can be done only with an extension cord, a water tank (water tank), and the washing machine body. If a household power source cannot be secured, a generator or the like may be used. If the extension (distance) of the weeding target is long, load these sets in a car and go to the site. In this case, it is convenient because it can move with a set of equipment.

(2) Caulking filling process In the caulking filling process, as shown in FIG. 1 (b), by using the high-pressure washing machine 10 without using sand containing a solidifying agent (as shown in the conventional example). The exposed gap 100 is filled with a paste-like caulking material 20.
When filling the caulking material 20, a space region R in which the caulking material 20 is not filled is provided from the upper entrance 100 a of the gap 100. In the present embodiment, the region R not filled with the caulking material 20 is provided within a range of 10 mm or less from the upper inlet 100a of the gap 100 (in this embodiment, as shown in FIG. did).

  As the caulking material 20, “Cemedine (registered trademark) PM165-R” (product name) was selected. This is also called a “sealing material”, and is generally used for repairing cracks in siding joints and tiles. It is a highly airtight and waterproof material, and has elasticity. The adhesive effect is about 10 years, and the service life varies depending on the type of caulking material used and the place of use.

Further, the region R not filled with the caulking material 20 is provided 10 mm or less from the upper entrance 100a of the gap 100, so that the soil is intentionally formed. That is, sand such as sand and dust enters and accumulates in the gap 100 to “soil”, and when seeds are mixed there, germinate and grow to become weeds.
However, as shown in FIG. 2, plants grown on a soil having a thickness of about 10 mm are almost limited to low grasses. Therefore, by forming the soil, the soil blocks direct sunlight and prevents ultraviolet rays and heat. It has an effect of protecting the caulking material 20.

The height (size) of a plant is closely related to the direction in which the roots are extended, the thickness, and the length. For example, well-known tall weeds such as the scorpion tree, himejoon, and mugwort are thick and long roots that are deeply and vertically stretched to support the stems and leaves in the ground. ing. If you take this in reverse, you can see that if you prevent the growth of the roots, such tall plants will be difficult to grow in that environment.
On the other hand, plants adapted to soil having a thickness of about 10 mm are generally thin and grow with their roots like cocoons spread horizontally. Such plants are short and tend to spread their leaves to crawl the ground.
Plant root depth (size) and back height (size) are roughly proportional, so if you set the depth to 5mm, which is shallower than the standard 10mm, this is the amount of sediment. The amount is reduced and the environment for growing plants is further insufficient, and inevitably only small plants can grow there.
Basically, it was very difficult to eliminate weeds, and I thought that the correct understanding of weed prevention was to consider the separation between “good things to grow” and “things I didn't want to grow”. Is. Plants suitable for the environment, such as moss, will always grow after weeds are removed.

(3) Coating film forming process In the coating film forming process, as shown in FIG. 1 (c), a coating that reduces deterioration of the caulking material 20 due to heat, ultraviolet rays and drying on the surface of the caulking material 20 filled in the gap 100 is applied. A film 30 is formed.
As a result, long-term durability can be further obtained.

Next, the result of the demonstration experiment is shown.
In the demonstration experiment, a vehicle such as a light truck is first prepared, and a generator (because it is almost impossible to secure a household power supply on public roads), a high pressure washer 10 (product name: RYOBI high pressure washer AJP- 2100GQ), in addition to water tanks, various tools necessary for caulking and general cleaning tools such as brooms are loaded.
Then, after weeds grown in the gap 100 formed at the boundary between the asphalt pavement and the concrete pavement were removed from the root by the high pressure washer 10, the exposed gap 100 was caulked.
In the weeding by the high pressure washer 10, the weeds could be removed from the roots in a very clean state without cutting the roots of the weeds. The weeds exposed on the road by washing (scouring) were washed clean up to the end of the root.
Moreover, unlike weeding with a mower, there was almost no scattering of grass to the surrounding area, and the subsequent cleaning could be completed in a very short time.
This proved that weeding by the high pressure washer 10 is a very effective means that makes it possible to remove roots and accumulated soil.
The demonstration experiment was conducted with a gap 100 having a width (interval) of about 5 mm to 2 cm, but the entire image could be clarified by scouring work using the high-pressure washer 10.

  A “cartridge gun” was used in the caulking work to fill the gap 100. The tip was sharpened as much as possible to reach the deep part of the gap 100, but the important point was to bring the asphalt, caulk, and concrete into close contact. Although it is not necessary to perform caulking to the deepest part of the gap 100, it is necessary to prevent a gap from being formed between the objects to be bonded on both sides of the caulking material 20.

In the construction part, weeds were not nurtured after 3 months of summer, including the rainy season. It can be said that the effect was fully recognized. Similarly, as a comparison, it was confirmed that new soil was formed in the construction portion where only the weed removal by the high pressure washer 10 was performed and the caulking material 20 was not filled, and weeds were growing there.
Moreover, no deterioration of coking due to heat, ultraviolet rays, etc. has been observed. However, this requires observation over time, and in fact, a clear answer cannot be obtained unless several years later. However, when an abnormality such as deterioration is found, since no caulking is performed 10 mm from the upper part of the gap 100, it is possible to apply new caulking from there and there is room for overcoating. Normally, the caulking top coat requires a thickness of about 5 mm, so that enough space is secured in advance, and in that sense, we conclude that there is a merit that weeding can be further extended (extended). be able to.

  In addition, it was assumed that dust or the like was accumulated in a portion having a depth of about 10 mm that was not subjected to caulking, and turned into soil, but it was sand that was actually deposited there. This is because the so-called “consolidation” was not performed because there was no soil volume and thickness necessary to form the soil, and the soil was not compacted. It is thought that the seeds scattered and flowed out, and only sand particles with heavy specific gravity remained there. However, since only the sand particles can block direct sunlight, it is possible to sufficiently protect the coking from ultraviolet rays and heat.

Although the depth of the space region R not filled with the caulking material is 10 mm, when this depth is, for example, 20 mm to 25 mm or more, what has entered and deposited there will definitely become soil, and weeds You can easily imagine that it will allow germination. Because it is a shallow groove of about 10 mm, deposits are scattered and run out repeatedly under the influence of wind and rain, and it is very effective in terms of weed protection.
Further, since the deposit on the caulking is sand, the portion can be exposed by sweeping with a broom without using the high-pressure washer 10 when confirming the deterioration state or coating the caulk. . This is also a very big effect.
As described above, according to the present embodiment, it is economical because weeding is not necessary for several years thereafter at a place where construction has been performed once.

10 High pressure washer 20 Caulking material 30 Coating 100 Clearance 100a Upper entrance of gap R Spatial area not filled with caulking material

Claims (2)

A method of weeding and preventing growth of useless plants that grow in the gaps on the road,
After washing the gaps using a high-pressure washing machine to wash out useless plants and earth and sand deposited there, exposing the gaps, and then filling the exposed gaps with a paste-like caulking material , When filling the caulking material, an area not filled with the caulking material from the upper entrance of the gap is provided at 10 mm or less from the upper entrance of the gap, and the soil is intentionally formed to grow the plant there. A method for weeding and preventing growth of useless plants, wherein the caulking material is protected from ultraviolet rays and heat by blocking direct sunlight . 2. The method for preventing weeds and preventing growth of useless plants according to claim 1, wherein a region not filled with the caulking material is provided at 5 mm to 10 mm or less from the upper entrance of the gap.