JP7462104B1 - How to install resin pavement using vacuum-packed products - Google Patents

Abstract

[Purpose] To provide a vacuum-packed product that allows even workers with no knowledge or experience of resin paving, or ordinary people who are amateurs when it comes to resin paving, to easily lay resin pavement on a base layer, etc., and a method for laying resin pavement using the same. [Constitution] A vacuum-packed product in which the contents are mixed in a volume ratio of 10:1 to 10:5, with at least 80% by weight of sand having a particle size such that the resin layer produced when used as a material for resin paving has good skid resistance and good adhesion, and a water-soluble resin that dissolves in water when sealed in a vacuum-packing bag and dries and hardens after being removed from the vacuum-packing bag, and the vacuum-packed product is a method for laying resin pavement using the same. [Selected drawing] Figure 2

Description

The present invention relates to materials for resin pavement and a method for constructing resin pavement.

Resin paving has traditionally been used in all or part of residential gardens, parking lots, facility gardens, sidewalks, median strips of roads, etc., for the purpose of weed control and maintaining the scenery (see Patent Document 1).

JP 2005-256329 A

However, in conventional resin pavements, in order to obtain the material for forming the resin layer, it was necessary to put multiple types of liquid agents into a container installed at the construction site and stir and mix them. However, such stirring and mixing work on site must be done by a skilled worker with a certain level of knowledge, experience, and skills, and it was difficult to get part-time workers who do not have the skills to perform it. In addition, ordinary people who are amateurs in resin pavements could not install resin pavements in parts of their own gardens. Furthermore, in the past, a method of caulking resin into gaps caused by cracks on the surface side of the asphalt or concrete layer that forms the sidewalk or roadway, or gaps between the asphalt or concrete layer that forms the sidewalk or roadway and the curb, etc., has been used to allow unskilled workers to seal such gaps. However, this method has the problem that the caulked resin deteriorates in a short period of time due to ultraviolet rays, etc., and has poor durability.

The present invention has been made with a focus on the problems of the prior art, and aims to provide a vacuum-packed product for resin paving and a method of construction of resin paving using the same, which allows even a worker with no skill in resin paving, such as a part-timer, or an ordinary person who is an amateur in resin paving, to easily and efficiently apply resin paving on a base layer such as a mortar layer, and which also allows even a worker with no skill in resin paving or an ordinary person who is an amateur in resin paving to apply durable resin paving that does not deteriorate over the long term. The present invention also aims to provide a vacuum-packed product for resin paving and a method of construction of resin paving using the same, which allows even a worker with no skill in resin paving or an ordinary person who is an amateur in resin paving to fill gaps between a roadway or sidewalk and a curb, or gaps caused by cracks in a roadway or sidewalk, by a method of construction of durable resin paving that does not deteriorate over the long term (broad definition).

The vacuum-packed product for use in resin pavement according to the present invention, which is used to solve the above problems, is a content used as a material for resin pavement in paving work, and is composed of sand that is configured so that at least 80% by weight (more preferably 90% by weight or more) of the total sand is sand with a particle size of 0.4 to 0.8 mm so that the resin layer formed by paving work, which is made of sand and resin, has both good skid resistance and good adhesion to the asphalt layer or concrete layer, and a material that dissolves in water when sealed in a vacuum packing bag and is taken out of the vacuum packing bag during paving work and used as part of the material for the resin pavement. The sand is mixed with water-soluble resin (or water-based resin or aqueous resin), which dries and hardens or solidifies after it is mixed, in a volume ratio of 10:1 to 10:5 (i.e., the volume ratio of the resin is 1 to 5 for a volume ratio of 10 of the sand), and the contents are sealed in a vacuum packing bag, and when the contents are removed from the vacuum packing bag, they are configured to be used as resin pavement materials in paving work in the state in which they were removed, without being mixed with each other or mixed with other liquid agents.

The method for constructing a resin pavement using a vacuum-packed product according to the present invention is characterized by including a mortar layer forming step for forming a layer of mortar, concrete or asphalt on the ground or base layer, a resin layer forming step for taking out from the vacuum-packed product the sand and water-soluble resin (or water-based resin or aqueous resin) that has soaked into and mixed with the sand, and laying or applying the sand and water-soluble resin (or water-based resin or aqueous resin) in the state as taken out, without mixing them with each other or mixing them with other liquid agents, to a thickness of 1.0 to 2.0 mm on a portion of the area where the mortar layer has been formed, and a repeating step for sequentially repeating the resin layer forming step until the resin layer is formed over the entire area where the mortar layer has been formed.

The method for constructing a resin pavement using a vacuum-packed product according to the present invention is characterized by including a mortar layer forming step for forming a layer of mortar, concrete or asphalt on the ground or base layer, a binder layer forming step for forming a binder layer on the layer of mortar, concrete or asphalt, a resin layer forming step for forming a resin layer on the binder layer by removing the sand and the water-soluble resin (or water-based resin or aqueous resin) that has soaked into and mixed with the sand from the vacuum-packed product, and laying or applying the removed sand and water-soluble resin (or water-based resin or aqueous resin) in the state as removed, without mixing them with each other or mixing them with other liquid agents, to a thickness of 1.0 to 2.0 mm on a portion of the area where the binder layer has been formed, and a repeating step for repeating the resin layer forming step in sequence until the resin layer is formed over the entire area where the binder layer has been formed.

The method of constructing resin pavement using the vacuum-packed product according to the present invention is characterized in that the sand and water-soluble resin (or water-based resin or aqueous resin) that has soaked into and mixed with the sand are taken out of the vacuum-packed product, and the sand and water-soluble resin (or water-based resin or aqueous resin) that have been taken out are applied in the state as taken out, without being mixed with each other or mixed with other liquid agents, to fill gaps caused by cracks on the surface side of the asphalt or concrete layer that forms the sidewalk or roadway, or gaps between the asphalt or concrete layer that forms the sidewalk or roadway and the curbstone, thereby forming a layer of sand and resin in the gaps.

Furthermore, in the vacuum-packed products that can be used in the resin pavement construction method according to the present invention, the sand may be pre-colored in one of a number of colors for each vacuum-packed product.

In one embodiment of the present invention, the "sand having a particle size of 0.4 to 0.8 mm" contained in the contents of the vacuum-packed product can be obtained, for example, by the "sieving method" specified in the conventionally well-known JIS Z 2510 and JIS Z 8801 (i.e., a method in which the mesh surface of a conventionally well-known "sieve" (e.g. a standard sieve according to the JIS standard) is vibrated manually or with a vibrating sieve machine to separate out only particles having a certain range of particle size (particle diameter)). That is, for example, by combining a sieve with an opening size of about 0.8 mm (sieve mesh opening width) placed on the upper side with a sieve with an opening size of about 0.4 mm (sieve mesh opening width) placed on the lower side and vibrating them manually or with an automatic sieve vibrator to "sift," that is, by removing the sand that has passed through the upper "0.8 mm opening sieve" and remained on the lower "0.4 mm opening sieve," the above-mentioned "sand with a particle size of 0.4 to 0.8 mm" can be obtained (for example, see the method according to the "particle size test method by dry sieving" described in JIS Z 2510:2004).

In the vacuum-packed product according to one embodiment of the present invention, as described above, the particle size distribution of the sand constituting part of the contents enclosed in the vacuum-packing bag of the vacuum-packed product is configured so that sand with a particle size of 0.4 mm to 0.8 mm accounts for 80% by weight or more (more preferably 90% by weight or more) of the total sand. For example, in one embodiment of the present invention (a prototype by the inventor, product name Soil Packun), the particle size distribution of the sand contained therein was approximately 24% of the total sand with a particle size of approximately 840 μm (MESH 20), approximately 48.6% of the total sand with a particle size of approximately 590 μm (MESH 28), and approximately 24% of the total sand with a particle size of approximately 420 μm (MESH 35) (see FIG. 1A, etc.). FIG. 1A shows graphs and other figures showing the results of a particle size distribution test that measured the particle size distribution of sand contained in the contents of a vacuum-packed product according to one embodiment of the present invention (product name M2 (Soil Pack)) (quoted from a particle size distribution test table dated April 26, 2023, created by Nawaka Sangyo Co., Ltd. (5-26-1 Miyaji, Fukutsu City, Fukuoka Prefecture)).

In one embodiment of the present invention, as described above, the sand in the contents of the vacuum-packed product is configured so that at least 80% by weight (more preferably 90% by weight) of the sand has a particle size of 0.4 mm or more (and 0.8 mm or less) in the entire sand, so that the resin layer (layer consisting of sand and resin) generated when the contents of the vacuum-packed product are used as a material for resin pavement has good skid resistance (see, for example, FIG. 1A). Conventionally, the resin layer (layer consisting of sand and resin) in resin pavement is required to have a skid resistance of at least C.S.R = 0.4 or more, but in one embodiment of the present invention, at least 80% by weight (more preferably 90% by weight) of the entire sand contained in the contents of the vacuum-packed product has a particle size of 0.4 mm or more, and as a result, at least C.S.R = 0.4 or more is required. It is configured to have a good slip resistance of R=0.6 or more (for example, in a dry state, C.S.R=0.8 or more, e.g., C.S.R=0.92. In a wet state, C.S.R=0.7 or more, e.g., C.S.R=0.86. See Figs. 1B and 1C). Figs. 1B and 1C show slipperiness tests (C.S.R values) for contents (product name: Soil Packun) according to one embodiment of the present invention, conducted by the Floor Slipperiness Measurement Association (4-2-2 Honcho, Nakano-ku, Tokyo) [Test method: JIS A 1454 Polymer-based Flooring Material Test Method (17) Slipperiness Test. Sample size: t=1.5 mm-2.0 mm. Test equipment: ONO PPSM. This is a diagram showing the results shown in the ONO PPSM slipperiness test report (report date June 28, 2023, Test Report No. K23-S0121-1) showing the results of a rubber sheet with a thickness of 3-6 mm (hardness measured by a durometer hardness test (type A durometer) specified in JIS K 6253-3) (type of sliding piece: hardness A72-A80, thickness 3-6 mm).

Furthermore, in one embodiment of the present invention, as described above, the sand in the contents of the vacuum-packed product is configured so that at least 80% by weight (more preferably 90% by weight or more) of the sand has a particle size of 0.4 mm or more and 0.8 mm or less, so that the resin layer (a layer consisting of sand and resin) produced when the contents of the vacuum-packed product are used as a material for resin pavement has good adhesion to an asphalt layer or concrete layer (see, for example, Figure 1A). Conventionally, in resin pavement, the resin layer (layer consisting of sand and resin = coating film) is required to have an adhesiveness (adhesive strength) of at least 1.0 N per square millimeter to the asphalt or concrete layer. In one embodiment of the present invention, at least 80% by weight (more desirably 90% by weight or more) of the total sand contained in the contents of the vacuum-packed product is constituted to be sand with a particle size of 0.8 mm or less, and as a result, it is constituted to have good adhesiveness (adhesive strength) of at least 1.6 N per square millimeter to the asphalt or concrete layer (or 1.7 N or more. For example, 1.87 N per square millimeter. See Figures 1D and 1E). 1D and 1E are diagrams showing the results of a test report (received on August 23, 2023, No. 5010-23000258) showing the results of an adhesive strength test for contents relating to one embodiment of the present invention (product name: Soil Pakkun. Creation date: August 10, 2023, age: 14 days) performed in the test room of the Nagoya Material Techno Testing Laboratory of the Chubu Testing Center of the Japan Quality Assurance Organization (39 Okimura, Nagoya City, Aichi Prefecture). ...

As described above, in the vacuum-packed product according to the present invention, the sand and the water-soluble resin (or the water-based resin or the aqueous resin) are sealed in a mixed state inside the vacuum-packing bag, so that the worker can simply take out the contents consisting of the sand and the water-soluble resin (or the water-based resin or the aqueous resin) from the vacuum-packing bag, and without the need to knead them together or to mix them with other liquids, can immediately lay or apply them on a layer of mortar or a binder layer in the state as taken out, so that the resin layer can be formed extremely easily and efficiently even by an unskilled worker or an ordinary amateur.

In addition, in the resin pavement construction method according to the present invention, on top of the mortar layer or binder layer, a layer of sand containing "at least 80% by weight or more (or 90% by weight or more) of sand with a particle size (for example, particle size measured by a test/measurement method using the well-known "sieving method" that has been conventionally used in JIS, etc.) of about 0.4 to 0.8 mm" and "a water-soluble resin that hardens (or solidifies) when dried (or a water-based resin; a resin that can be dispersed or dissolved in water and that can function as a hardener when dried)" is applied in a volume ratio of about 10:1 to about 10:5. The sand and the water-soluble resin (or water-based resin or aqueous resin) soaked therein are taken out of a vacuum-packed product sealed with a volume ratio of 10 to 1 to 5 of the resin (i.e., a volume ratio of 10 to 1 to 5 of the sand), and the sand and the water-soluble resin (or water-based resin or aqueous resin) are applied or spread to a thickness of about 1.0 to 2.0 mm on a portion (a region of a specified area) of the region in which the mortar layer or binder layer is formed. This process is repeated for each portion, and resin pavement can be performed over the entire region of the mortar layer or binder layer. Therefore, according to the present invention, even part-time workers with little knowledge or skill in resin paving, or ordinary people who are amateurs when it comes to resin paving, can easily apply resin paving on a base layer, etc. (a layer of mortar, etc. or a binder layer) (Note that when ordinary people apply resin paving to their own gardens or parking lots, it is practically desirable to target areas where a mortar layer, concrete layer, or asphalt layer has already been applied, or to request the application of such a mortar layer, etc., from a professional in advance).

In addition, in one embodiment of the vacuum-packed product, the particle size distribution of the sand that constitutes part of the contents sealed in the vacuum-packing bag of the vacuum-packed product is configured so that sand with a particle size of 0.4 mm to 0.8 mm accounts for 80% by weight or more (more preferably 90% by weight or more) of the total sand (see Figure 1). Therefore, when contents containing such sand are used for resin paving to form a resin layer (a layer made of sand and resin), the resin layer (a layer made of sand and resin) can have good slip resistance, for example, C.S.R = 0.6 or more.

In addition, in one embodiment of the present invention, the contents sealed in the vacuum packing bag of the vacuum packing product are configured such that, as described above, at least 80% by weight of the total sand is sand with a particle size (0.4 mm or more and) 0.8 mm or less (see, for example, Figure 1). Therefore, when contents containing such sand are used for resin paving to form a resin layer (a layer consisting of sand and resin), the resin layer (a layer consisting of sand and resin) can have good adhesion of at least 1.6 N or more (or 1.5 N or more) per square millimeter to the underlying asphalt or concrete layer.

Furthermore, when the sand enclosed in the vacuum-packed product of the present invention is pre-colored in one of a number of colors for each vacuum-packed product, the design of the resin pavement constructed using the vacuum-packed product can be made more excellent and meet various customer needs.

1 is a graph and a table for explaining the results of a measurement test of the particle size distribution of sand that constitutes part of the contents of a vacuum-packed product according to an embodiment of the present invention. FIG. 1 is a diagram for explaining the results of a slipperiness test (CSR value) for contents according to one embodiment of the present invention. 1 is a diagram illustrating the results of a slipperiness test (CSR value) for a content according to an embodiment of the present invention. FIG. 2 is a diagram for explaining the results of an adhesive strength (adhesiveness) test for contents according to one embodiment of the present invention. FIG. 2 is a diagram for explaining the results of an adhesive strength (adhesiveness) test for contents according to one embodiment of the present invention. FIG. 1 is a schematic diagram for explaining a resin pavement construction method according to a first embodiment of the present invention. FIG. 2 is a schematic diagram showing a method for constructing a resin pavement according to the first embodiment. FIG. 2 is a perspective view showing one step of the resin pavement construction method according to the first embodiment. FIG. 2 is a perspective view showing one step of the resin pavement construction method according to the first embodiment. FIG. 2 is a perspective view showing the appearance of a vacuum-packed product used in the resin pavement construction method according to the first embodiment. FIG. 2 is a perspective view showing one step of the resin pavement construction method according to the first embodiment. FIG. 11 is a diagram showing an example in which a vacuum-packed product is used in another construction method according to the second embodiment of the present invention.

Example 1
Hereinafter, a vacuum-packed product according to an embodiment of the present invention and a method for constructing a resin pavement using the same will be described with reference to Figures 2 to 7. Figure 2 is a schematic diagram for explaining the method for constructing a resin pavement according to the first embodiment of the present invention, Figure 3 is a schematic diagram showing the method for constructing a resin pavement according to the first embodiment, Figures 4, 5, and 7 are perspective views showing one step of the method for constructing a resin pavement according to the first embodiment, and Figure 6 is a perspective view showing the appearance of a vacuum-packed product used in the method for constructing a resin pavement according to the first embodiment.

First, the construction method of the resin pavement according to this embodiment 1 will be described with reference to Figures 2 and 3. In this embodiment 1, first, crushed stone or the like is laid to a predetermined thickness (e.g., several centimeters or more) in a recess 2 (see Figure 3(a)) excavated in the ground layer 1, and then compacted to form a base layer 1a. Note that this base layer 1a may not be necessary depending on the condition of the ground layer 1.

Next, a mortar layer, concrete layer or asphalt layer (hereinafter collectively referred to as "mortar layer, etc.") is formed on the base layer 1a in the recess 2 (or the ground layer 1 in the recess 2 if there is no base layer 1a) by a conventionally known method (see reference numeral 3 in FIG. 2 and reference numeral 3 in FIG. 3(b)). The thickness of the mortar layer 3 may vary depending on the condition of the individual ground surface 1 or base layer 1a, but in most cases it is desirable to form it to a thickness of about 30 to 50 mm.

In this embodiment 1, the mortar layer 3 is formed on the base layer 1a in the recess 2 (or the ground layer 1 in the recess 2 if there is no base layer 1a) because if the "contents (contents) of the vacuum-packed product 6, which are sand and water-soluble resin (or water-based resin or aqueous resin)" (described later) were directly laid on the ground layer 1 or base layer 1a, which has a high water permeability, the water-soluble resin (or water-based resin or aqueous resin) in the contents would seep into the ground layer 1 or base layer 1a, which has a high water permeability, within a short period of time, and as a result, the sand in the contents would not be able to be solidified (hardened) by the water-soluble resin (or water-based resin or aqueous resin) on the ground layer 1 or base layer 1a.

Next, after the mortar layer 3 thus formed has sufficiently dried and hardened, a binder layer 4 is formed on the mortar layer 3. This binder layer 4 is formed by applying a conventionally known binder such as "Moldine" (registered trademark, manufactured by Kansai Putty Kako Co., Ltd.) to the mortar layer 3 (see FIG. 3(c)). FIG. 4 is a perspective view showing the process of applying such a conventionally known binder to the mortar layer 3 using a brush or the like to form the binder layer 4, and FIG. 5 is a perspective view showing the state after the binder layer 4 has been formed over the entire area of the required surface area (for example, the entire area to be used as a parking lot).

Next, after the binder layer 5 has dried and hardened, the water-soluble resin (or water-based resin. In this case, the water-soluble resin (or water-based resin or aqueous resin) naturally permeates and mixes into the sand) containing sand is laid in sequence to form the "resin layers containing sand" 5a, 5b... (see Fig. 3(d) and Fig. 3(e)). This operation is carried out as follows. That is, in the operation and process for forming such resin layers 5a, 5b..., first, the necessary number of vacuum-packed products 6 (vacuum-packed products developed for this embodiment 1. See Fig. 6) containing a certain amount of water-soluble resin (or water-based resin. In this case, the water-soluble resin (or water-based resin or aqueous resin) naturally permeates and mixes into the sand) containing sand are purchased and secured in advance, and transported to the construction site.

The vacuum-packed product 6 is composed of sand, the particle size of which is about 0.4 to about 0.8 mm, and at least about 80% or 90% by weight of the sand, and water-soluble resin (or water-based resin, which can function as a hardener) that hardens (or solidifies) when dried, enclosed in a volume ratio of, for example, 10:1 to 10:5 (i.e., a volume ratio of the resin is 1 to 5 for a volume ratio of 10 of the sand).

In such a vacuum-packed product 6, the sand and the water-soluble resin (or water-based resin or aqueous resin) are sealed in a state where they are mixed together inside the vacuum-packing bag. In addition, since the sand and the water-soluble resin (or water-based resin or aqueous resin) are already mixed together inside the vacuum-packing bag, when they are taken out of the vacuum-packing bag, there is no need to knead them together or mix them with other liquid agents, and they can be used as they are for resin paving (i.e., to form the "resin layer made of sand and water-soluble resin"). Note that the water-soluble resin (or water-based resin or aqueous resin) can be any of various well-known water-soluble resins (or water-based resin or aqueous resin) that have been commercially available and are conventionally available, such as acrylic resins, urethane resins, epoxy resins, and polyester resins.

The water-soluble acrylic resin may be, for example, #1000 (registered trademark) manufactured by Taisei Fine Chemical Co., Ltd. (9163-19 Kamakazu, Asahi City, Chiba Prefecture). The water-soluble urethane resin may be, for example, WBR Urethane Emulsion (registered trademark) manufactured by Taisei Fine Chemical Co., Ltd. (9163-19 Kamakazu, Asahi City, Chiba Prefecture). The water-soluble epoxy resin may be, for example, Watersol EFD (registered trademark) manufactured by DIC Corporation (3-7-20 Nihonbashi, Chuo-ku, Tokyo). The water-soluble polyester resin may be, for example, Aronmelt PES (registered trademark) manufactured by Toa Gosei Co., Ltd. (1-14-1 Nishi-Shinbashi, Minato-ku, Tokyo). The resin products already on the market are all sold as resins dissolved in water (water-soluble resins), so each of the resin products may be used as the material for the vacuum-packed product according to this embodiment in the state in which it was purchased.

The sand enclosed in each vacuum-packed product 6 is colored in one of a number of colors for each vacuum-packed product 6 so that the customer can select the desired color from a number of colors (for each vacuum-packed product 6) (thus, the sand in each vacuum-packed product 6 has a variety of colors).

After the binder layer 4 formed as described above has dried (drying time is about 20 to 30 minutes in summer and about 1 to 2 hours in winter), the worker takes out the contents of one of the vacuum-packed products 6 prepared in advance as described above on-site and applies or spreads it to a partial area on the binder layer 4, i.e., a partial area that can be applied or spread with only the contents of one vacuum-packed product 6 (see FIG. 6), with a trowel, brush, etc., to a thickness of, for example, about 1.5 to 2.0 mm, to perform surface finishing, thereby forming a resin layer (resin layer containing sand) 5a (see FIG. 3(d)). Note that the thickness of the resin layer 5 in this case may vary individually depending on the grain size of the sand in the contents (contents) of the vacuum-packed product 6, the volume ratio of sand to water-soluble resin (or water-based resin or aqueous resin), etc., but it is desirable to form it to a thickness of about 1.5 to 2.0 mm (or about 1.0 to 2.5 mm in some cases) as described above.

In addition, in this embodiment, as described above, the binder layer 4 may not be formed, and the contents may be applied or spread over a portion of the mortar layer 3 to form a resin layer (a resin layer containing sand) 5a (see FIG. 3(d)).

The area of the resin layer 5a (see FIG. 3(d)) that is laid or applied using one vacuum-packed product 6 may vary depending on the amount of sand and water-soluble resin (or water-based resin or aqueous resin) contained in one bag of the vacuum-packed product 6 and their volume ratios, but it is desirable to form it in an area of about 1.0 to 3.0 square meters, more preferably about 2.0 square meters, in terms of work efficiency. That is, as described above, it is desirable to manufacture the vacuum-packed product 6 (see FIG. 6) by sealing a sufficient volume of contents in the vacuum-packing bag to form the resin layer (resin layer containing sand) 5a on the binder layer 4 with an area of about 1.0 to 3.0 square meters (or about 2.0 square meters) and a thickness of about 1.5 to 2.0 mm (or about 1.0 to 2.5 mm). In addition, in Fig. 3(d), the thickness of the mortar layer 3 is about 30 to 50 mm, while the plane area of the resin layer 5a is about 1.0 to 3.0 square meters, and more preferably about 2.0 square meters, so the scale in Fig. 3(d) does not match between the vertical and horizontal directions of the figure, which makes it somewhat unnatural, but for the sake of convenience, it is shown this way for the time being. The same is true for Fig. 3(e).

After the resin layer 5a (see FIG. 3(e)) has been formed on a portion of the binder layer 4 (or the mortar layer 3 if there is no binder layer 4), the contents are then similarly taken from another of the multiple vacuum-packed products 6 prepared in advance and applied or spread over another portion of the binder layer 4 adjacent to the portion of the binder layer 4 (a portion of the binder layer 4 having approximately the same area as the portion of the mortar layer 3) in the same manner as described above, to form another resin layer 5b adjacent to the resin layer 5a (see FIG. 3(e) and FIG. 7).

Then, the same operations as above are repeated in sequence until the entire area on the mortar layer 3 or the binder layer 4 is completely covered with the resin layers 5a, 5b, etc. By repeating such operations, that is, by sequentially applying or spreading each of the contents on each partial area on the binder layer 4 (or the mortar layer 3), the resin layers 5a, 5b, etc. are finally formed on the entire area on the binder layer 4 (or the mortar layer 3). This completes the construction of the resin pavement according to this Example 1.

In this embodiment 1, the resin layer 5 (see FIG. 2) is not spread over the entire area on the binder layer 4 (or the mortar layer 3) at once (for example, the contents of each of the multiple vacuum-packed products 6 are opened from each bag at once and the resin layer 5 is applied or spread over the entire area on the binder layer 4 (or the mortar layer 3) at once), but rather, the contents are taken out of only one of the multiple vacuum-packed products 6, and the contents are first applied to only a portion of the area that can be covered by the contents (for example, an area of 2 square meters). The resin layer 5a (see Figure 3(d)) is formed by applying or spreading the resin over the vacuum-packed product 6, and the same process is then repeated in sequence. The reason for this is that the water-soluble resin (or water-based resin or aqueous resin) dries and hardens within a short time after it is removed from the vacuum-packed product 6. If the contents of multiple vacuum-packed products 6 are all removed at once and spread over a wide area at once, the water-soluble resin (or water-based resin or aqueous resin) in the contents will dry and harden during the process, making it impossible to continue the paving work from where it left off.

As described above, in this Example 1, the contents (contents) of one vacuum-packed product in which sand with a particle size of about 0.4 to 0.8 mm and water-soluble resin (or water-based resin or aqueous resin) that hardens when dried are sealed on top of the binder layer 4 (or mortar layer 3) in a volume ratio of about 10:1 to 10:5 (i.e., the volume ratio of the resin is 1 to 5 for a volume ratio of 10 for the sand) are "sand and the water-soluble resin (or water-based resin or The "sand and water-soluble resin (or water-based resin or water-based resin)" thus taken out is spread in a thickness of 1.0 to 2.0 mm (or 1.5 to 2.0 mm) on a part of a predetermined area that is a part of the area where the binder layer is formed (see FIG. 3(d)). By repeating this operation for each area of a certain area (for example, each area of 2 square meters) (see FIG. 3(e) and also see FIG. 7), resin paving can be finally performed over the entire area of the required area. Therefore, according to this embodiment 1, even a worker such as a part-timer who does not have knowledge and experience of resin paving, or even an ordinary person who is an amateur about resin paving, can easily perform resin paving on the base layer (binder layer 4 or mortar layer 3) (Note that when an ordinary person performs resin paving in a home garden or parking lot, it is practically desirable to target an area where a mortar layer, concrete layer, or asphalt layer has been applied in advance, or to request the construction of such a mortar layer, etc., from a professional in advance).

In addition, the vacuum-packed product 6 according to the present embodiment 1 is sealed with the sand and water-soluble resin (or water-based resin or aqueous resin) mixed together inside the vacuum-packed bag, and when they are taken out of the vacuum-packed bag, they do not need to be mixed together or mixed with other liquids. Therefore, the worker can immediately lay or apply the contents (sand and the water-soluble resin (or water-based resin or aqueous resin)) taken out of the vacuum-packed product 6 on the base layer (binder layer 4 or mortar layer 3) as is, and therefore even an unskilled worker or an ordinary amateur can form the layer of sand and water-soluble resin (or water-based resin or aqueous resin) very simply and efficiently.

Furthermore, since the sand enclosed in the vacuum-packed product 6 according to this embodiment 1 is pre-colored to the desired color, the design of the resin pavement constructed using the vacuum-packed product according to this embodiment 1 can be made superior and more in line with customer needs.

Example 2
Next, Figures 8(a) and (b) are diagrams for explaining the case where the vacuum-packed product according to the present invention is used for another construction method of resin pavement (broad sense) other than that of Example 1. In Figures 8(a) and (b), 11 is a roadway, 12 is a sidewalk, 13 is a curb (the lower part of which is buried in the ground) consisting of, for example, a square with a plane of 10 cm and a cube with a height of 20 cm for separating the roadway 11 and the sidewalk 12, 14 is a crushed stone layer, for example, 10 cm thick, formed as a part of the foundation for installing the curbstone 13, and 15 is a mortar layer, for example, 3 cm thick, formed as a part of the foundation for installing the curbstone 13 on the crushed stone layer 14.

Generally, there is a certain gap at the boundary between the roadway 11 and the curb 13, or the boundary between the sidewalk 12 and the curb, and weeds often grow from this gap.

In such a case, the worker takes out the contents consisting of the sand and the water-soluble resin (or water-based resin or aqueous resin) from the vacuum-packed product described in this Example 1, and fills or applies it to the gap. In this case, the worker can simply take out the contents consisting of the sand and the water-soluble resin (or water-based resin or aqueous resin) from the vacuum-packing bag, and fill or apply it to the gap immediately in the state as taken out, without the need to mix them together or mix in other liquid agents, thereby forming a "layer consisting of sand and resin" (constructing resin pavement (broad definition)).

Reference numeral 16 in FIG. 8(b) indicates the "layer of sand and resin" formed by filling or applying the contents into the gap in this manner. As described above, the worker can simply take out the contents of sand and water-soluble resin (or water-based resin or aqueous resin) from the vacuum pack bag, and fill or apply them immediately into the gap in the state as taken out, without the need to mix them together or mix in other liquids. Therefore, even an unskilled worker or an ordinary amateur can easily and efficiently form the "layer of sand and resin" (construct resin pavement (broad definition)) as described above.

In addition, Figures 8(a) and (b) explain how the vacuum-packed product of this embodiment is used to form a "layer of sand and resin" (construction of resin pavement (broad definition)) to fill gaps that exist at the boundary between the roadway 11 and the curbstone 13, or at the boundary between the sidewalk 12 and the curbstone, but a similar operation can also be performed to fill gaps caused by cracks that have occurred in parts of the surface side of the roadway 11 or the sidewalk 12, for example.

Although the first and second embodiments of the present invention have been described above, the present invention is not limited to the first embodiment, and various modifications and changes are possible. For example, in the first embodiment, a binder layer formation step is interposed between the mortar layer formation step and the resin layer formation step, but in the present invention, this binder layer formation step may be omitted.

1 Ground layer 1a Base layer 2 Recess 3 Mortar layer etc. (layer made of mortar, concrete or asphalt)
4 Binder layer 5 Resin layer (layer consisting of sand and water-soluble resin (or water-based resin or aqueous resin))
6 Vacuum-packed product 11 Roadway 12 Sidewalk 13 Curbstone 14 Crushed stone layer 15 Mortar layer 16 Layer made of sand and resin

Claims (2)

A mortar layer forming step of forming a mortar layer made of mortar, concrete or asphalt on the ground or base layer;
a resin layer forming step of removing the contents from one of a plurality of vacuum packed products, the contents being a mixture of sand, 80% by weight or more of which has a particle size of 0.4 to 0.8 mm, and a water-soluble or water-based resin, which is dissolved in water when sealed in the vacuum packing bag and dries and hardens or solidifies after being removed from the vacuum packing bag, in a volume ratio of 10:1 to 10:5, and spreading or applying the contents in the removed state without mixing with other liquid agents or without being kneaded with each other, on a partial region of the entire region where the mortar layer or the binder layer thereon is formed, the partial region corresponding to an area of 1 to 3 square meters in which a resin layer can be formed using only the contents removed from the one vacuum packed product, to form a resin layer;
a repeating step of spreading or applying another content taken from another vacuum-packed product among the plurality of vacuum-packed products onto another partial region corresponding to the content in the entire region to form a resin layer for each of the contents and for each of the partial regions in sequence until a resin layer is formed over the entire region;
A method for constructing a resin pavement using a vacuum-packed product, comprising: A mortar layer forming step of forming a mortar layer made of mortar, concrete or asphalt on the ground or base layer;
a binder layer forming step of forming a binder layer on the layer made of mortar, concrete or asphalt;
a resin layer forming step of removing the contents from one of a plurality of vacuum packed products, the contents being a mixture of sand, 80% by weight or more of which has a particle size of 0.4 to 0.8 mm, and a water-soluble or water-based resin, which is dissolved in water when sealed in the vacuum packing bag and dries and hardens or solidifies after being removed from the vacuum packing bag, in a volume ratio of 10:1 to 10:5, and spreading or applying the contents in the removed state, without mixing with other liquid agents or without being mixed with each other, on a partial region of the entire region where the binder layer is formed, the partial region corresponding to an area of 1 to 3 square meters in which a resin layer can be formed using only the contents removed from the one vacuum packed product, to form a resin layer;
a repeating step of spreading or applying another content taken from another vacuum-packed product among the plurality of vacuum-packed products onto another partial region corresponding to the content in the entire region to form a resin layer for each of the contents and for each of the partial regions in sequence until a resin layer is formed over the entire region;
A method for constructing a resin pavement using a vacuum-packed product, comprising:

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