JP2005120676A - Permeable surface aggregate layer and its forming method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative aggregate layer wherein an aggregate with a larger granular diameter is used even in the case of the same construction thickness, which can enhance strength while securing water permeability, which can secure walking performance, and which can present a beautiful appearance with a natural feeling. <P>SOLUTION: This decorative aggregate layer 3 is provided on a substrate 1. In the layer 3, a mixed aggregate, which is composed of an aggregate 5 with a weight ratio of 50-80% and a grain diameter of 3-20 mm, and an aggregate 7 with a weight ratio of 20-50% and a grain diameter 0.5-3 mm, is bound together by means of a resin binder. The aggregate 7 enters a gap in the aggregate 5, serves as a cushion on the downside of the aggregate 5, serves as a roller for the aggregate 5, and makes a valley between the aggregates 5 filled with a surface layer part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a decorative aggregate layer such as a sidewalk, and more particularly to an improvement of a decorative aggregate layer in which the decorative aggregate is bonded with a resin.

  Conventionally, a surface layer of a water-permeable natural stone resin pavement is generally known as a decorative aggregate layer. This natural stone resin pavement is a pavement in which a decorative aggregate made of natural stone aggregate is bonded to a concrete or asphalt base with a synthetic resin binder. The ratio of the aggregate and the resin binder is generally 2 to 20 parts by weight of the synthetic resin binder with respect to 100 parts by weight of the aggregate. This type of pavement is used, for example, on promenades such as parks and gardens, entrance approaches in schools and campuses, and the interior and exterior of houses, public facilities, and condominiums.

  In the conventional construction method of natural stone resin pavement, a so-called dichotome (aggregate particle size 5 to 7 mm) is independently constructed to a thickness of 10 mm, and a monolith (aggregate particle size 3 to 5 mm) is independently 10 mm. The method of constructing to a thickness and the method of constructing a 10 mm thickness by mixing bismuth + 1 fraction (weight ratio 50:50) have been put into practical use. The reason why such a setting is adopted is as follows.

  Since natural stone resin pavement is generally expensive, it is required to make the pavement thickness as thin as possible. From this point of view, the standard finish thickness is 10 mm. If the particle size is made larger than the practical size in the prior art, construction with a thickness of 10 mm becomes difficult. Specifically, the unevenness of the finished surface becomes intense and the feeling of walking becomes worse. From this point of view, in the prior art, the particle size is restricted to bisected and monoscented.

  Further, the conventional natural stone resin pavement has a very high water permeability because it has a high porosity, but on the other hand, the impact resistance is weak due to the large number of voids. Therefore, it is difficult to use it as it is for a garage or a parking lot. In terms of strength, the use of large particle size aggregates is even more disadvantageous.

As a measure for obtaining impact resistance, a method of filling a gap between aggregates with cement paste (Patent Document 1: Japanese Patent Publication No. 7-11178), and filling a gap between aggregates with dry sand, A solidification method (Patent Document 2: Japanese Patent No. 2696083) is exemplified. These construction methods exhibit excellent performance in terms of impact resistance, but on the other hand are disadvantageous in that essential water permeability is impaired.
Japanese Examined Patent Publication No. 7-11178 (2nd page, FIGS. 5-7) Japanese Patent No. 2696083 (second page, FIGS. 3 and 4)

  As described above, in the range of the conventional pavement technology, the particle size is restricted in order to meet the demand for a relatively thin construction thickness and to reduce the unevenness in consideration of walking performance. In other words, it was difficult to use an aggregate having a larger particle size without increasing the construction thickness. In addition, the conventional technique has a high porosity, but is disadvantageous in terms of strength because the porosity is large.

  The present invention has been made under the above-mentioned background, can use a larger size aggregate with a relatively thin construction thickness, ensure water permeability, improve strength, and ensure walking performance. It is possible to provide a decorative aggregate layer capable of producing a natural impression. Moreover, the objective of this invention is providing the formation method of the above suitable makeup | decoration aggregate layers.

  An aspect of the present invention is a water-permeable decorative aggregate layer, in which an aggregate having a particle size of 3 to 20 mm with a weight ratio of 50 to 80% and a particle diameter of 0.5 to 20 with a weight ratio of 20 to 50%. Mixed aggregate with ~ 3mm aggregate is bonded with resin binder.

  Another embodiment of the present invention is a method for forming a water-permeable decorative aggregate layer, which comprises an aggregate having a particle size of 3 to 20 mm in a weight ratio of 50 to 80% and an aggregate particle size of 0.2 to 20% in a weight ratio. A step of disposing a mixed aggregate of 5 to 3 mm of aggregate and a resin binder on the substrate, and a step of leveling the disposed mixed aggregate and the resin binder to a predetermined thickness.

  According to the present invention, by applying a mixed aggregate containing an aggregate having a particle size of 0.5 to 3 mm (hereinafter referred to as a fine aggregate), the following effects can be obtained. That is, the fine aggregate enters the gap between the larger aggregates, and the fine aggregate is positioned below the larger aggregates to act as a cushion, and the fine aggregate is larger bone. It acts as a roller between the aggregates when leveling the material, and the fine aggregate is leveled with scissors or the like at the construction stage, so that it falls into the gap between the aggregates and fills the valleys. By such an action, the porosity is reduced and the strength is improved. In addition, the workability is improved, the unevenness of the aggregate layer surface is reduced, and this is advantageous for walking performance.

  And in this invention, sufficient porosity and the water permeability by it can be ensured compared with the prior art which fills cement paste and sand. Furthermore, according to the present invention, a beautiful appearance that is close to nature with a mixture of grains having different sizes can be obtained by combining fine aggregates and larger aggregates.

  Therefore, according to the present invention, a larger aggregate can be used even with the same construction thickness, water permeability can be secured, strength can be improved, walking performance can be secured, and a natural impression can be created.

  Preferably, the aggregate having a particle size of 3 to 20 mm is an aggregate having a particle size of 7 to 13 mm, and the height of the aggregate having a particle size of 7 to 13 mm is 10 mm or less. Preferably, the aggregate having a particle size of 3 to 20 mm is an aggregate having a particle size of 10 to 20 mm, and the height of the aggregate having a particle size of 10 to 20 mm is 10 mm or less. As described above, the present invention can use an aggregate having a particle size of 7 mm or more, which is difficult to use from the viewpoint of workability by the conventional single-grain construction technique, and can also use a larger aggregate having a particle size of 10 mm or more. And it is not necessary to increase the conventional standard thickness of 10 mm.

  Here, as described above, the present invention provides a natural and beautiful makeup aggregate layer using a large aggregate having a particle size of 7 mm or more and 10 mm or more with a construction thickness comparable to that of the prior art. Is particularly advantageous. However, within the scope of the present invention, even when using an aggregate having a particle size of 7 mm or less, the advantages of ensuring water permeability and improving the strength can be obtained, and the appearance can be improved.

  In the present invention, an aggregate having a particle size of 10 to 20 mm with a weight ratio of 50 to 80%, an aggregate having a particle size of 3 to 7 mm with a weight ratio of 0 to 30%, and a particle size of 0.5 to 3 mm with a weight ratio of 20 to 50%. The aggregate with the aggregate may be bonded with a resin binder (the aggregate with a particle size of 3 to 20 mm with a weight ratio of 50 to 80% is a particle with a weight ratio of 50 to 80% in the mixed aggregate) An aggregate with a diameter of 10-20 mm and an aggregate with a particle size of 3-7 mm with a weight ratio of 0-30%). That is, some of the aggregates having a particle diameter of 3 to 20 mm may be aggregates having a particle diameter of 10 to 20 mm, and the rest may be aggregates having a particle diameter of 3 to 7 mm. Even in this embodiment, a decorative aggregate layer using an aggregate having a particle diameter of 10 mm or more can be obtained.

  Preferably, the aggregate having a particle size of 3 to 20 mm and the aggregate having a particle size of 0.5 to 3 mm are natural stone aggregates of the same variety having different sizes. By mixing natural stones of the same variety, a landscape similar to the actual natural landscape can be obtained.

  Preferably, the resin binder is made of an elastic type urethane synthetic resin rather than a hard type urethane synthetic resin, so that the makeup aggregate layer is less likely to slip and the safety during walking is improved.

  The present invention is not limited to the above-described decorative aggregate layer and the method for forming the same. Another aspect of the present invention may be a paving material or a paving method. In another aspect of the present invention, for example, a mixed aggregate of an aggregate having a particle size of 3 to 20 mm having a weight ratio of 50 to 80% and an aggregate having a particle size of 0.5 to 3 mm having a weight ratio of 20 to 50% is resin. It is a pavement material having a water-permeable decorative aggregate layer bonded on the surface with a bonding material.

  In another aspect of the present invention, a step of forming a substrate to be positioned under the decorative aggregate layer, an aggregate having a particle size of 3 to 20 mm with a weight ratio of 50 to 80%, and a weight ratio of 20 to 50%. A step of arranging a mixed aggregate and a resin binder with an aggregate having a particle size of 0.5 to 3 mm on a substrate, a step of leveling the arranged mixed aggregate and the resin binder to a predetermined thickness, It is a paving method including.

  As described above, according to the present invention, even with the same construction thickness, an aggregate having a larger particle size can be used, and while ensuring water permeability, strength can be improved, walking performance can be ensured, and a natural feeling can be achieved. A decorative aggregate layer that can give a beautiful appearance can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, the decorative aggregate is natural stone.

  FIG. 1 shows a water-permeable natural stone resin pavement provided with a decorative aggregate layer according to the present embodiment, and a decorative aggregate layer 3 is provided on a base 1 as shown. The substrate 1 is concrete or asphalt. The decorative aggregate layer 3 is composed of a mixed aggregate of an aggregate 5 having a particle diameter of 3 to 20 mm having a weight ratio of 50 to 80% and an aggregate 7 having a particle diameter of 0.5 to 3 mm having a weight ratio of 20 to 50%. . Aggregates 5 and 7 are decorative aggregates of the same type and are natural stones. Cobblestone, boulder gravel and crushed stone are preferably applied. The aggregate 5 and the aggregate 7 are joined by a resin binder.

  2 and 3 show the particle size classification in the present specification. As shown in FIG. 2, an aggregate having a particle size of 10 to 20 mm is referred to as a large particle size aggregate, an aggregate having a particle size of 7 to 13 mm is referred to as a medium particle size aggregate, and an aggregate having a particle size of 3 to 7 mm. It is called a small particle size aggregate, and an aggregate having a particle size of 0.5 to 3 mm is called a fine particle size aggregate. Although not shown, in the present embodiment, as the large particle size aggregate and the medium particle size aggregate, aggregates having a height of 10 mm or less are used. FIG. 3 is a diagram showing the classification of FIG. 2 on a number line.

  FIG. 4 shows a sieve that can be used to obtain an aggregate of a certain particle size and for the measurement of the particle size. A sieve having a hole size (hole size) d corresponding to the target particle size is used. In FIG. 4, the hole size d is a wire interval, more specifically, an interval from end to end of the wire (not a core interval).

  For example, in order to obtain an aggregate having a medium particle size (7 to 13 mm), two sieves having a hole size of d1 and d2 are used. d1 and d2 are set so as to satisfy the condition 7 ≦ d1 <d2 ≦ 13. First, an aggregate having a particle size of d1 or more is obtained using a sieve having a hole size d1. Then, an aggregate having a particle size of d2 or less is obtained using a sieve having a hole size d2. A sieve having a hole size d2 may be used first. In this way, an aggregate having a particle size of d1 to d2, that is, an aggregate belonging to a medium particle size is obtained. Moreover, if d1 = 7 and d2 = 13, an aggregate in which the particle size is distributed over the entire medium particle size range of 7 to 13 mm is obtained.

  Similar sieves can be used for other sizes of aggregates. For example, in order to obtain an aggregate having a large particle size, two sieves of 10 ≦ d1 <d2 ≦ 20 may be used. In addition, as shown in FIGS. 2 and 3, in the present specification, the setting of the medium particle size and the large particle size partially overlap. The overlapping range is 10-13 mm. If the size of the sieve is 10 ≦ d1 <d2 ≦ 13, the resulting aggregate belongs to both medium and large particle sizes. Such an aggregate may be called a medium particle size or a large particle size, but here it is called a medium particle size.

  As described above, the particle size of the aggregate is defined by the size of the hole through which the aggregate passes.

  FIG. 5 shows an example of a device for obtaining an aggregate of a certain height. In the example of FIG. 5, a sorting bar is disposed on the rotating disk. The gap between the rotating disk and the sorting bar is set to the target aggregate height. Aggregate is then supplied onto the rotating disk. Aggregate that passes through the gap between the rotating disk and the sorting rod is collected as the target aggregate.

  In the present embodiment, an aggregate having a height of 10 mm or less is used for an aggregate having a medium particle size and a large particle size. Such an aggregate can be obtained by setting the gap between the rotating disk and the sorting bar in FIG. 5 to 10 mm (or an appropriate value less than that).

  Also, other devices may be used within the scope of the present invention. For example, a sorting bar may be installed on the belt conveyor.

  FIG. 6 shows an example of a construction method of the natural stone resin pavement of FIG. In this example, a mixed aggregate of medium-sized aggregate and fine-grained aggregate is applied.

  As shown in the figure, first, medium-sized aggregate and fine-grained aggregate are mixed at an appropriate ratio. The blending ratio is such that the medium particle size is 50 to 80% by weight and the fine particle size is 20 to 50%. First, a base such as concrete to be positioned under the decorative aggregate layer is formed at the construction site. The mixed aggregate is mixed with the resin binder by a mixer near the construction site. And the mixed aggregate is arrange | positioned on base | substrates, such as concrete, in a construction place in the state mixed with the resin binder. Here, the mixed aggregate is appropriately spread at the construction site. Then, the mixed aggregate is subjected to rolling and leveling with an appropriate tool such as a plasterer so that an aggregate layer having a target thickness is formed. When the resin binder is solidified, the decorative aggregate layer is completed. The time required for solidification is approximately 10 to 20 hours, although it varies depending on factors such as the season. In the example of FIG. 6, the decorative aggregate layer is provided on the horizontal plane, but it is needless to say that the decorative aggregate layer may not be provided on the horizontal plane within the scope of the present invention.

  As shown in FIG. 6, the construction of the present embodiment causes the fine particle size aggregate to enter the gaps of the medium particle size aggregate and reduce the voids.

  Further, the fine particle size aggregate wraps around to the lower side of the medium particle size aggregate, becomes a cushion for the medium particle size aggregate, and functions as a level adjustment of the work thickness, and makes the work surface flat.

  Further, as a role that affects workability, the fine particle size aggregate functions as a roller of medium particle size aggregate, which improves the workability of dredging.

  In addition, in the mixing process of the mixed aggregate and the resin binder, the resin is coated around the medium particle size, and the viscosity makes the fine particle size aggregate to the entire periphery of the medium particle size aggregate. It ’s sticking. This finely aggregated fine aggregate falls into the gaps between the medium-sized aggregates and fills the valleys at the stage of leveling by surface finishing.

  Due to the action of filling the gaps and valleys, the cushion action and the roller action, the porosity is reduced and the strength is improved, the workability is improved and the aggregate layer surface is flattened, and the walking performance is good. can get. Even with the same construction thickness, it is possible to use an aggregate having a larger medium particle size than before. Further, unlike the prior art in which cement paste or sand is filled, a certain degree of porosity and resulting water permeability can be secured. And by using a large aggregate, a beautiful appearance closer to nature can be obtained by combining a large aggregate and a small aggregate.

  Moreover, in this invention, a construction process may be the same as that of the conventional natural stone resin pavement. That is, mixing with the resin binder, placement at the construction site, and leveling may be performed in the same manner. Therefore, this invention can provide a suitable makeup | decoration aggregate layer, without raising the cost of construction work.

  In the above description, mixed aggregates with medium and fine particle sizes are taken up. However, the same can be said for mixed aggregates of large and fine particle sizes. Further, within the scope of the present invention, other mixed aggregates, for example, a combination of a large particle size aggregate and a small particle size aggregate may be mixed with a fine particle size aggregate, or a medium particle size aggregate and a large particle size bone The same advantage can be obtained when a fine particle aggregate is mixed with a combination of materials.

  In addition, even when a small particle size aggregate and a fine particle size aggregate are mixed, compared to the construction using only the small particle size aggregate of the prior art, the porosity can be reduced and the strength can be improved. It can be used without any damage, and can increase the natural feeling.

  Next, the resin binder will be described. In the present embodiment, the ratio between the mixed aggregate and the resin binder is set so that a resin having an appropriate film thickness is formed. The blending ratio is 2 to 20 parts by weight of the resin binder with respect to 100 parts by weight of the aggregate, and the film thickness is typically 30 to 40 micrometers. The resin binder may be a synthetic resin, and preferably forms a transparent film.

  As the resin binder, an elastic type resin is preferable, and an elastic type urethane resin can be applied. That is, in the field of resin paving, hard type urethane resin and elastic type urethane resin are known, but it is preferable to use the latter resin. The makeup aggregate layer is less slippery and safety during walking is improved.

  In addition, as other resin employable by this invention, an epoxy resin and an acrylic resin are mentioned, for example. In order to put it to practical use, a type that is strong against ultraviolet rays and has little deterioration is suitable.

  Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. The above embodiments can be modified by those skilled in the art within the scope of the present invention.

  Next, an appropriate blending ratio between the fine aggregate and other aggregates obtained through experiments by the inventor will be described.

  7 to 9 show experimental results of appropriate blending ratios. In the experiment, a decorative aggregate layer was formed by the above-described construction method using mixed aggregates having various blending ratios. And the external appearance was the best, and the compounding ratio with favorable workability was calculated | required.

  The experiment was conducted for each variety (Ishiname). As shown in the figure, the experimental varieties were Daegu, South, Jinhua, Huanghua, Momoyama, Guilin, Amakusa, Azuchi, Aomi, and Niihama. In the experiment of each kind, the same kind of aggregate was mixed.

  FIG. 7 shows the experimental results when using a large particle size aggregate. It was suitable to use not only large and fine aggregates but also small aggregates. As for the small particle size, the result shown in the drawing was obtained using the aggregate in the range of 3 to 5 mm among 3 to 7 mm defined in FIG. For example, with respect to “Daisen”, the appropriate ratio was 56% large particle size, 15% small particle size, and 29% fine particle size.

  FIG. 8 shows the experimental results of an appropriate blending ratio when using medium-sized aggregates. For example, with regard to “Oiso”, an appropriate ratio was 62% medium particle size and 38% fine particle size.

  FIG. 9 shows the experimental results of appropriate blending ratios when using small particle size aggregates. For example, with regard to “Oiso”, a suitable ratio was a small particle size of 63% and a fine particle size of 37%.

  Next, with reference to FIGS. 10 to 13, the measurement results of the porosity of the decorative aggregate layer of the present invention will be described. Each figure shows the measurement results for each product type. FIG. 10 shows the measurement results of “Daisen”, FIG. 11 shows the “southern”, FIG. 12 shows the “golden”, and FIG. The porosity is shown with data on weight, volume, specific gravity, and water fill weight. Moreover, as shown in the drawing, the construction thickness is 10 mm. The weight ratio of the resin binder was 4 (%) of the resin binder with respect to 100 (%) of the aggregate (mixed aggregate).

  In “Oiso” in FIG. 10, “standard 4 minutes”, “standard 2 minutes”, and “standard 1 minute + 2 minutes” are comparative examples. “Standard 4 minutes” is a result of constructing only aggregates having a particle diameter of 9 to 12 mm. “Standard 2 minutes” is the result of constructing only aggregates (2 stones) with a particle size of 5 to 7 mm. "Standard 1 minute + 2 minutes" was constructed by mixing an aggregate with a particle size of 3-5 mm (one-quarter) and an aggregate with a particle size of 5-7 mm (two-quarter) in a 50:50 ratio. It is a result. “Standard 2 minutes” and “Standard 1 minute + 2 minutes” are currently in practical use as described above. “Standard 4 minutes” is the result of a trial for comparison.

  11 to 13 also show a comparative example similar to FIG. However, in “Oiso” of FIG. 10, the first comparative example is “standard 4 minutes”, whereas in “south” of FIG. 11, the first comparative example is “standard 5 minutes”. It is the result of constructing only 10-15 mm aggregate. In addition, in “Jinhua” in FIG. 12, the first comparative example is “standard 4 minutes”, which is the same as “Oiso”. However, the particle size is 9 to 18 mm, which is different from “Daisetsu” in this respect (in this way, the name of the particle size and the setting of the specification may differ depending on the supplier). Further, in “Yellow” in FIG. 13, the first comparative example is “standard 3 minutes”, which is a result of constructing only aggregates having a particle diameter of 7 to 10 mm.

  On the other hand, in FIGS. 10 to 13, “small balls”, “medium balls”, and “large balls” are measurement results of the decorative aggregate layer of the present invention. “Kodama” is the porosity at the blending ratio of FIG. 9, “Nakadama” is the porosity at the blending ratio of FIG. 8, and “Otama” is the porosity at the blending ratio of FIG. is there. For example, looking at “Daisen” in FIG. 10, “Daitama” has a large particle size of 56%, a small particle size of 15%, and a fine particle size of 29% (the top row in FIG. 7). The medium particle size is 62% and the fine particle size is 38% (the uppermost row in FIG. 8), and “Kodama” is the small particle size is 63% and the fine particle size is 37% (the uppermost row in FIG. 9). Thus, in this experiment, the blending ratio shown by the results of FIGS. 7 to 9 is employed.

  FIG. 14 is a graph showing the measurement results of FIGS. 10 to 13. When paying attention to “Oiso”, the practically used porosity of standard 2 minutes and standard 1 minute + 2 minutes are 28.5% and 25.4%, respectively. On the other hand, when larger grains are simply applied, the porosity increases to 33.2% as shown in the standard 4 minutes for comparison, and the strength decreases accordingly. On the other hand, the decorative aggregate layers “Kodama”, “Nakadama” and “Odama” of the present invention have a porosity of 24.2%, 20.5% and 20.6% as shown in the figure, and the porosity is reduced. And the strength can be increased accordingly.

It was also confirmed that if there is a porosity of this level, the water permeability requirement is sufficiently satisfied. In addition, the water permeability standard of the pavement is 1 × 10 ⁻² cm / sec, and as a measuring method, a method using a cylinder having a diameter of 100 mm and a height of 50 mm is known.

  Here, the porosity measurement results have been described focusing on “Oiso”, but as is apparent from FIG. 14, the same tendency is also observed in the other varieties “Southern”, “Jinhua”, and “Huanghua”.

  The experiment described above is merely an example, and it is needless to say that the present invention is not limited. For example, varieties of stones other than those mentioned above may be applied. Further, the blending ratio is not limited to the above. For example, in the above example, the large particle size is mixed with the fine particle size together with the small particle size, but only the large particle size may be mixed with the fine particle size.

As shown in the above experimental examples, according to the present embodiment, while maintaining the water permeability (1 × 10 ⁻² cm / sec or more), the porosity is lowered to 25% or less, and the maximum is 18%. It is possible to obtain a strong structure that can withstand garages and parking lots as it is. Furthermore, the workability can be improved, and even if an aggregate having a large particle size is used by 50% or more of the total amount, the coating thickness does not need to be 10 mm or more. Furthermore, since the surface layer is finished as flat as possible, the feeling of walking is also good, and the finished surface has a grain size that is not a single grain, so that a finish that brings out a natural view can be obtained.

  Then, the above-mentioned decorative aggregate layer is blended with an appropriate blending ratio that varies depending on the aggregate type, such as a large particle diameter, and then bonded with a synthetic resin binder, and the compaction and leveling are performed with a plasterer. It is realized by performing and completing.

  In the present invention, for example, even if 50% or more of large aggregates are arranged on a water-permeable natural stone resin pavement, the construction increases the strength without increasing the construction thickness, maintains the water permeability, and improves the walking performance. It is possible to provide a pavement that brings out a natural view.

It is a figure which shows the water-permeable natural stone resin pavement which provided the makeup | decoration aggregate layer of this Embodiment. It is a figure which shows the classification | category of a particle size. It is a figure which shows the classification | category of a particle size. It is a figure which shows the sieve which can be used in order to obtain the aggregate of a specific particle size. It is a figure which shows the example of the apparatus for obtaining the aggregate of specific height. It is a figure which shows the formation method of the makeup | decoration aggregate layer of this Embodiment. It is a figure which shows the experimental result of a suitable mixture ratio. It is a figure which shows the experimental result of a suitable mixture ratio. It is a figure which shows the experimental result of a suitable mixture ratio. It is a figure which shows the porosity measurement result of a makeup | decoration aggregate layer. It is a figure which shows the porosity measurement result of a makeup | decoration aggregate layer. It is a figure which shows the porosity measurement result of a makeup | decoration aggregate layer. It is a figure which shows the porosity measurement result of a makeup | decoration aggregate layer. It is a figure which shows the porosity measurement result of a makeup | decoration aggregate layer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base | substrate 3 Makeup aggregate layer 5, 7 Aggregate

Claims (16)

  A mixed aggregate of an aggregate having a particle size of 3 to 20 mm having a weight ratio of 50 to 80% and an aggregate having a particle size of 0.5 to 3 mm having a weight ratio of 20 to 50% is bonded with a resin binder. A water-permeable decorative aggregate layer.   The water-permeable decorative aggregate layer according to claim 1, wherein the aggregate having a particle size of 3 to 20 mm is an aggregate having a particle size of 7 to 13 mm.   The water-permeable decorative aggregate layer according to claim 2, wherein the aggregate having a particle size of 7 to 13 mm has a height of 10 mm or less.   The water-permeable decorative aggregate layer according to claim 1, wherein the aggregate having a particle size of 3 to 20 mm is an aggregate having a particle size of 10 to 20 mm.   The water-permeable decorative aggregate layer according to claim 4, wherein the aggregate having a particle size of 10 to 20 mm has a height of 10 mm or less.   An aggregate having a particle size of 10 to 20 mm having a weight ratio of 50 to 80%, an aggregate having a particle size of 3 to 7 mm having a weight ratio of 0 to 30%, and an aggregate having a particle size of 0.5 to 3 mm having a weight ratio of 20 to 50% A water-permeable decorative aggregate layer characterized in that the mixed aggregate is bonded with a resin binder.   The aggregate having a particle size of 3 to 20 mm and the aggregate having a particle size of 0.5 to 3 mm are natural stone aggregates of the same varieties having different sizes. The water-permeable decorative aggregate layer as described.   A step of disposing a mixed aggregate of an aggregate having a particle size of 3 to 20 mm with a weight ratio of 50 to 80% and an aggregate having a particle size of 0.5 to 3 mm with a weight ratio of 20 to 50% and a resin binder on the substrate. And a step of leveling the arranged mixed aggregate and the resin binder to a predetermined thickness, and forming a water-permeable decorative aggregate layer.   The method for forming a water-permeable decorative aggregate layer according to claim 8, wherein the aggregate having a particle size of 3 to 20 mm is an aggregate having a particle size of 7 to 13 mm.   The water-permeable decorative aggregate layer forming method according to claim 9, wherein the aggregate having a particle size of 7 to 13 mm has a height of 10 mm or less.   The method for forming a water-permeable decorative aggregate layer according to claim 8, wherein the aggregate having a particle size of 3 to 20 mm is an aggregate having a particle size of 10 to 20 mm.   The method for forming a water-permeable surface decorative layer according to claim 11, wherein the aggregate having a particle size of 10 to 20 mm has a height of 10 mm or less.   An aggregate having a particle size of 10 to 20 mm having a weight ratio of 50 to 80%, an aggregate having a particle size of 3 to 7 mm having a weight ratio of 0 to 30%, and an aggregate having a particle size of 0.5 to 3 mm having a weight ratio of 20 to 50% And a step of arranging the mixed aggregate and the resin binder on the substrate, and a step of equalizing the arranged mixed aggregate and the resin binder to a predetermined thickness. Material layer forming method.   The aggregate having a particle size of 3 to 20 mm and the aggregate having a particle size of 0.5 to 3 mm are natural stone aggregates of the same variety having different sizes. The method for forming a water-permeable decorative aggregate layer as described.   Permeable makeup in which a mixed aggregate of an aggregate having a particle size of 3 to 20 mm with a weight ratio of 50 to 80% and an aggregate having a particle size of 0.5 to 3 mm with a weight ratio of 20 to 50% is bonded with a resin binder. A paving material having an aggregate layer on the surface.   Forming a substrate to be positioned under the decorative aggregate layer; an aggregate having a particle size of 3 to 20 mm with a weight ratio of 50 to 80%; and an aggregate having a particle size of 0.5 to 3 mm with a weight ratio of 20 to 50% And a step of arranging the mixed aggregate and the resin binder on the base body, and a step of leveling the arranged mixed aggregate and the resin binder to a predetermined thickness.

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