JP2010090614A - Floor surface or road surface paving structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor surface and road surface paving structure capable of allowing the appropriate permeation of water into the ground while preventing the accumulation of dust and water in a floor surface and a road surface and excellent in durability. <P>SOLUTION: After at least either a ground improvement material or cement is mixed in a surface part of the ground to be paved and compacted to apply ground improvement of a thickness between 10 cm and 50 cm, a coating layer of a thickness of a 10 mm or less made of cement water, a cement paste, or mortar and provided with a water permeable function and a water flowable function is formed on the surface of the ground to form a water permeable pavement layer in which an aggregate is integrated on the coating layer by a joining material. The water permeable pavement layer is constituted of both a lower layer part in which an aggregate of a grain diameter of 5 mm or greater to 30 mm or less is joined by a joining material and having a water permeability of a porosity of 15% or greater to 35% or less and a surface layer part in which an aggregate of a grain diameter of 3 mm or greater to less than 15 mm is joined by a joining material, formed in the upper surface of the lower layer part, and having a porosity of 10% or greater to 25% or less. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a paving structure such as a building, a building interior / exterior, a garage floor, and a sidewalk.

  For example, it is common to lay concrete around a parking lot or a house and construct a floor or road surface with the concrete, or construct a floor or road surface by laying tiles or the like. Also, for example, even in a temple approach, the road surface is generally paved with concrete or crushed stone.

  However, if the floor or road surface is laid with concrete or tiles as described above, water, dirt or mud tends to accumulate on the floor surface or road surface, and it is difficult to walk due to puddles in rainy weather, and cleaning is troublesome. In other words, there is a problem that the sound reverberation increases.

  On the other hand, when crushed stones are laid on the road surface, there is a problem that it is difficult to walk.

In response to the above problems, a reinforcing layer made of concrete or mortar having a thickness of about 30 mm to 50 mm is laid on the ground, and a large number of aggregates are integrally bonded to the reinforcing layer with a bonding agent. In order to prevent rainwater from penetrating into the ground by forming a surface layer with water permeability, allowing rainwater to pass through the surface layer and receiving it on the reinforcing layer and draining it through the drainage channel A pavement structure has also been proposed. (See Patent Document 1)
However, as described above, when a thick reinforcing layer having a thickness of about 30 mm to 50 mm is formed on the ground, the cost increases and the number of days required for the construction increases as well. Since the penetration into the underground is hindered, it may cause the depletion of groundwater and urban heat island phenomenon, and there is also a risk of cracking in the reinforcing layer and pavement structure due to shrinkage of concrete and mortar. .

On the other hand, when the above-described reinforcing layer is not formed, for example, most of the rainwater soaks into the ground, which causes problems such as weakening of the ground during heavy rain.
JP 2000-345504 A

  The present invention has been developed in view of the above circumstances. The object of the present invention is to prevent the accumulation of dust and water on the floor surface and road surface while preventing the water from entering the ground to secure the natural environment. Therefore, it is expected to provide a pavement structure for a floor surface or a road surface that can be expected to have a proper penetration.

  In order to achieve the above object, the invention described in claim 1 is directed to improve the ground by mixing a predetermined amount of at least one of a ground improver and cement with respect to the surface portion of the ground to be paved and rolling. After application, the surface of the ground is formed of cement water, cement paste or mortar to form a coating layer having a water permeability function and a flowing water function. Further, the aggregate is integrated with the bonding material on the coating layer. The water-permeable pavement layer provided with the water permeability formed by bonding is formed.

  According to a second aspect of the present invention, in the floor or road pavement structure according to the first aspect, the ground improvement portion of the ground has a thickness of 10 cm to 50 cm.

  According to a third aspect of the present invention, in the floor or road pavement structure according to the first or second aspect, the coating layer is formed in a curtain shape having a thickness of 10 mm or less.

  The invention according to claim 4 is the floor or road pavement structure according to claim 1, 2 or 3, wherein the water-permeable pavement layer has a large number of aggregates having a particle size of 5 mm or more and 30 mm or less. Are formed on the upper surface of the lower layer portion and the particle size is 3 mm or more and less than 15 mm. It is characterized in that it is composed of a surface layer portion in which the aggregate is integrally bonded with a bonding agent so that the porosity is 10% or more and 25% or less.

  The invention according to claim 5 is the floor surface or road surface pavement structure according to claim 1, 2 or 3, wherein the permeable pavement layer is 2 mm or more to an aggregate having a large particle size of 5 mm or more and 30 mm or less. It is characterized in that aggregates having a small particle diameter of 20 mm or less are mixed and these mixed aggregates are integrally bonded with a bonding agent.

  According to a sixth aspect of the present invention, in the pavement structure of the floor surface or road surface according to the first, second, third, fourth, or fifth aspect, a drain pipe is embedded in the ground, and an entrance of the drain pipe is formed in the coating. It is characterized by opening on the layer.

  According to a seventh aspect of the present invention, in the floor or road pavement structure according to the first, second, third, fourth, or fifth aspect, a drainage guide groove is provided on the upper surface of the coating layer. Features.

  According to the first aspect of the present invention, it is possible to prevent dirt and water from accumulating on the floor surface and road surface, so that it is not necessary to provide a gradient for drainage on the surface as in the conventional case, and the construction work is simple as much. It becomes. In addition, since there are many voids and surface areas in the permeable pavement layer structure on the floor surface and road surface, moisture can be maintained, the rise of the temperature of the floor surface or road surface can be suppressed in summer, and the water permeable function and running water can be maintained. When the amount of water flowing down is small, for example, by a coating layer having a function, the water permeates into the ground from the surface side of the coating layer through the back side, while a large amount of water flows down. In that case, a part of it can pass through the coating layer and return to the ground, and most of it can flow along the coating layer and be collected in, for example, a drain pipe. The effect of suppressing the temperature rise can be enhanced, and moisture induction to surrounding plants and garden plants can be secured.

  According to the second aspect of the present invention, it is possible to reduce the amount of binder and other binders required for the construction of the pavement structure, improve workability, and reduce the pavement cost. In spite of this, it is possible to sufficiently increase the bearing capacity of the road surface.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the coating layer is formed in a film shape having a thickness of 10 mm or less, so Permeation can be performed more smoothly.

  According to invention of Claim 4, a water-permeable pavement layer couple | bonds together many aggregates with a particle size of 5 mm or more and 30 mm or less by a bonding agent, and the porosity is 15% or more and 35% or less. A lower layer portion having water permeability and an upper surface of the lower layer portion, and a large number of aggregates having a particle size of 3 mm or more and less than 15 mm are integrally bonded with a bonding agent, and a porosity is 10% or more and 25 In addition to the effects of the invention according to claim 1, 2 or 3, in addition to the effect of the invention according to claim 1, 2 or 3, there is no accumulation of dust, mud and water on the floor surface or road surface, and it is easy to walk, Further, the durability of the floor surface or road surface can be sufficiently enhanced.

  According to the invention described in claim 5, the permeable pavement layer was mixed with an aggregate having a large particle size of 5 mm or more and 30 mm or less and an aggregate having a small particle size of 2 mm or more and 20 mm or less, and these were mixed. Since the aggregate is integrally bonded with the bonding agent, in addition to the effect of the invention according to claim 1, 2, 3 or 4, it is easy to walk and the durability of the floor surface or road surface is sufficient. Can be increased.

  According to the sixth aspect of the present invention, a drain pipe is embedded in the ground, and an inlet of the drain pipe is opened on the coating layer, so that the first, second, third, fourth, or fifth aspect is provided. In addition to the effects of the invention described in (1), the water flowing on the coating layer can be reliably and smoothly collected in the drain pipe and drained.

  According to the invention described in claim 7, in addition to the effects of the invention described in claim 1, 2, 3, 4 or 5, since the drainage guide groove is provided on the upper surface of the film layer, the film layer The water flowing along the top can be drained reliably and smoothly through the drain guide groove.

  1 to 3 show a floor formed by an example of a pavement structure according to the present invention. First, a predetermined amount of a ground improver or cement is mixed into the ground 1 of the floor, and then the ground 1 is turned. Rolls with a pressure roller or tamper to improve the ground and perform uniform compaction.

  The thickness of the ground 1 to be subjected to the ground improvement is preferably 10 cm to 50 cm. In the embodiment, the thickness is improved to about 20 cm.

  As the ground improvement agent, for example, a cement-based solidifying agent is used. By mixing this ground improvement agent, for example, 10 kg to 50 kg per 1 cubic meter of the soil of the ground 1, the supporting force of the ground can be improved and the original soil can be improved. It is possible to adjust the penetration and water retention capacity of about 90% to 50% of the soil, and for example, by mixing 50 kg to 100 kg of ground improver per 1 cubic meter of soil of the ground 1, 50% to 20% of the original soil is similarly obtained. It can be adjusted to a permeation / water retention capacity of about a percent.

  Subsequently, a drain pipe 10 is laid on the ground 1, and then cement water, cement paste, mortar water or mortar is poured onto the ground 1 to form a coating layer 2 of 10 mm or less. A film-like coating layer 2 having a thickness of 2 mm made of water or cement paste is formed.

  The inlet 11 of the drain pipe 10 is preferably covered with a wire mesh or the like.

  The above-described coating layer 2 is 10 mm or less (in the embodiment, a film shape having a thickness of 2 mm), so that an appropriate water flowing function allows water to flow on the surface (upper surface), and the water passes from the surface side to the back side. In particular, when a small amount of water of a predetermined amount or less flows into the coating layer 2, the above-described water permeability function causes the While water passes through the coating layer 2 and penetrates into the ground, when a large amount of water of a predetermined amount or more flows into the coating layer 2, a part of the coating layer 2 is removed by the water-permeable function described above. Most of the water that passes through and penetrates into the ground and cannot pass through the coating layer 2 flows on the coating layer 2 by the above-mentioned flowing water function.

  In addition, the capability of the above-mentioned water flow function and water permeation function can be adjusted by arbitrarily changing the thickness of the coating layer 2.

  Next, a lower layer 4 constituting the water-permeable pavement layer 3 is formed on the coating layer 2.

  Specifically, crushed stone 40 having an average particle size of about 15 mm in weight is used as an aggregate, and Portland cement 41 is used as a bonding agent. The crushed stone 40 having the above particle size, Portland cement 41 and water are mixed. In the embodiment shown in the figure, the thickness of the kneaded material is poured into a thickness of about 60 mm and cured to form a void ratio in which many continuous open pores 42 are formed between the crushed stones 40. A lower layer 4 having about 25% air permeability and water permeability is formed on the upper surface of the coating layer 2.

  And the surface layer part 5 used as the surface of the water-permeable pavement layer 3 is formed on the said lower layer part 4, Comprising: Specifically, natural gravel 50 which is excellent in appearance with an average particle diameter of about 8 mm as an aggregate. And kneaded by mixing a synthetic resin 51 having transparency as a bonding agent, and poured into the lower layer portion 4 with a predetermined thickness, that is, a thickness of 10 mm in the embodiment shown in FIG. A number of continuous open pores 52 are formed between each other, and a surface layer portion 5 having air permeability and water permeability with a porosity of about 15% is formed on the lower layer portion 4.

  In addition, when forming the surface layer part 5, you may comprise by the layer which joined many aggregates with the cement paste using concrete modification and a coloring agent, and thereby, the design property of a pavement surface can be improved. .

  Further, a normal temperature glass agent is applied to the surface of the surface layer portion 5 and a glass coating is applied to the surface of the surface layer portion 5. By this glass coating, the gloss of the surface of the surface layer portion 5 is maintained, and the water-permeable pavement layer 3. Strength reduction, protection from acid rain and salt damage, prevention of neutralization of the water-permeable pavement layer 3, and improvement of exfoliation resistance can be achieved.

  On the paved floor as described above, the particle size of the gravel 50 forming the surface layer portion 5 is as fine as 8 mm, so there is no problem with walking, and water is poured on the floor. However, if the amount of water flowing down immediately below the coating layer 2 through the continuous open pores 52 and 42 is less than a predetermined amount, the water is on the surface (upper surface) of the coating layer 2. While it penetrates into the ground from the side through the back (bottom) side, if a large amount of water flows down, a part of the water passes through the coating layer 2 and penetrates into the ground, and most of the water is on the coating layer 2 It flows along the flow and is collected in the drain pipe 10.

  Therefore, in the above pavement structure, rainwater and the like can be returned to the ground appropriately, so that not only the water-permeable pavement layer 3 having voids but also the water retention capacity of the ground can be utilized. In addition to enhancing the effect, it is possible to secure moisture induction to surrounding plants and garden plants.

  Moreover, the dust and mud carried on the floor flow into the coating layer 2 together with water flowing on the floor through the continuous open pores 52 and 42 without accumulating on the floor surface.

  In the above floor, it is not necessary to provide a gradient on the surface of the surface layer portion 5.

  And since the particle size of the crushed stone 40 which forms the lower layer part 4 is enlarged rather than the gravel 50 which forms the surface layer part 5, the aperture diameter of the continuous open pore 42 formed in the lower layer part 4 becomes inevitably large. It is also prevented for a long time that dust and mud flowing into the continuous open pores 52 of the surface layer portion 5 are caught in the vicinity of and in the middle of the surface and the continuous open pores 52 and 42 are clogged.

  Further, for example, since noise is also sucked into the continuous open pores 52 and 42, the noise can be efficiently reduced.

  Moreover, in the permeable pavement layer 3 of the floor surface paved as mentioned above, water is hard to be stored and is excellent in air permeability, so that the white flower phenomenon (eflorescence) hardly occurs in the permeable pavement layer 3.

  In the above embodiment, the drain pipe 10 is laid on the ground 1 and the inlet of the drain pipe 10 is opened on the surface side of the coating layer 2. However, as shown in FIGS. The drainage guiding groove 6 may be formed on the surface of the coating layer 2 without being provided.

  That is, in the embodiment shown in FIGS. 4 to 6, a groove serving as a main drainage guide groove having a semicircular cross section in the compacted ground 1 and a branch drainage guide groove having a V-shaped cross section branched from the main drainage guide groove. After forming a groove, the cement water, cement paste or mortar is poured on the ground to form a film-like film layer 2 having a thickness of about 2 mm, for example, and the main drainage guide groove is formed on the surface of the film layer 2 The water-permeable pavement layer 3 may be formed on the coating layer 2 after forming the branched drainage guide groove 6b that branches 6a.

  In addition, it is preferable to connect the downstream side of the main drain guide groove 6a described above to a separately provided drainage channel.

  Even with the above pavement structure, water that flows down onto the coating layer 2 and cannot penetrate into the ground can be reliably discharged by the drainage guide grooves 6a and 6b.

  In each of the above embodiments, the surface of the ground 1 and the coating layer 2 may normally be leveled. However, when drainage is particularly prioritized, it is preferable to provide a drainage gradient.

  In the above embodiment, the lower layer part 4 uses a crushed stone 40 having an average particle diameter of 15 mm as an aggregate, and a large number of continuous open pores 42 are formed between the crushed stones 40. Although formed so as to have water permeability, the present invention is not limited to this, and the average particle diameter of the aggregate may be in the range of 15 mm to 25 mm and the porosity may be in the range of 15% to 35%.

  Moreover, in the above embodiment, the lower layer part 4 uses the crushed stone 40 whose weight is about 15 mm in average particle diameter as an aggregate, and uses Portland cement 41 as a bonding agent, and the crushed stone 40 and Portland cement of the said particle diameter are used. However, the present invention is not limited to this, for example, depending on the required support strength. Or an adhesive made of another synthetic resin material may be used as the bonding material.

  Moreover, in the above embodiment, the surface layer part 5 uses the gravel 5 whose average particle diameter is 8 mm as an aggregate, and formed a lot of continuous open pores 52 between the gravels 50 and has a porosity of about 15%. However, the average particle size of the aggregate is in the range of 3 mm or more and less than 15 mm, and the porosity is in the range of 10% or more and 25% or less. I just need it.

  In each of the above embodiments, crushed stone is used as the aggregate. However, the present invention is not limited to this. For example, crushed concrete lumps produced as industrial waste or various recycled materials may be used.

  In the above embodiment, natural gravel 50 is used as an aggregate forming the surface layer portion 5, but is not limited to this. For example, colored glass cullet, recycled ceramic, brick, plastic, rubber A crushed material may be used.

  In the above embodiment, the water-permeable pavement layer 3 is formed by integrally bonding a large number of aggregates having a particle size of 5 mm or more and 30 mm or less with a bonding agent, and the porosity is 15% or more and 35% or less. The water-permeable lower layer part 4 and a large number of aggregates formed on the upper surface of the lower layer part 4 and having a particle size of 3 mm or more and less than 15 mm are integrally bonded with a bonding agent, and the porosity is 10% or more. The surface layer portion 5 is 25% or less, but is not limited to this. For example, as shown in FIG. 7, the permeable pavement layer 3 is made of an aggregate 7 having a large particle size of 5 mm or more and 30 mm or less. Alternatively, an aggregate 70 having a small particle diameter of 2 mm or more and 20 mm or less may be mixed, and these mixed aggregates 7 and 70 may be integrally bonded with a bonding agent.

That is, in the embodiment shown in FIG. 7, an aggregate 70 having an average particle size of about 17.5 mm is mixed with an aggregate 70 having a small particle size of about 11 mm and the mixed aggregate 7. 70 is integrally bonded with a bonding agent such as a synthetic resin. In this case, the porosity of the water-permeable pavement layer 3 is about 25%. Therefore, in the pavement structure shown in FIG. The flatness and smoothness of the surface (upper surface) 3 and the exfoliation resistance of the aggregates 7 and 70 defining the water-permeable pavement layer 3 are improved.

BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows one Embodiment of the floor paved by the paving structure of this invention. Explanatory drawing which expands and shows the principal part of the pavement structure of this invention. Explanatory drawing which expands and shows the principal part of the pavement structure of this invention. Explanatory drawing which shows another embodiment of the pavement structure concerning this invention. XX line expanded sectional view in FIG. The YY line expanded sectional view in FIG. Explanatory drawing which shows another embodiment of the pavement structure of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ground 2 Film layer 3 Permeable pavement layer 4 Lower layer part 5 Surface layer part 10 Drain pipe 6a Main drainage guide groove 6b Branch drainage guide groove

Claims (7)

  At least one of the ground improver and cement is mixed into the surface part of the ground to be paved, and after the ground is improved by rolling and pressing, cement water, cement paste or mortar is applied to the ground surface. A water-permeable pavement layer with water permeability is formed on the coating layer. Aggregate is joined together by a bonding material. A pavement structure for floors or roads.   The floor surface or road surface pavement structure according to claim 1, wherein a thickness of the ground improvement portion in the ground is 10 cm to 50 cm.   The pavement structure for a floor surface or a road surface according to claim 1 or 2, wherein the coating layer is formed in a curtain shape having a thickness of 10 mm or less.   The water-permeable pavement layer is a lower layer having water permeability in which a large number of aggregates having a particle size of 5 mm or more and 30 mm or less are integrally bonded with a bonding agent so that the porosity is 15% or more and 35% or less. And a surface layer portion that is formed on the upper surface of the lower layer portion, and a large number of aggregates having a particle size of 3 mm or more and less than 15 mm are integrally bonded with a bonding agent so that the porosity is 10% or more and 25% or less. It is comprised, The paved structure of the floor surface or road surface of Claim 1, 2, or 3 characterized by the above-mentioned.   The permeable pavement layer is mixed with an aggregate having a large particle size of 5 mm or more and 30 mm or less and an aggregate having a small particle size of 2 mm or more and 20 mm or less, and these mixed aggregates are integrally bonded with a bonding agent. The paved structure of a floor surface or a road surface according to claim 1, 2 or 3, wherein   6. The floor surface or road surface pavement according to claim 1, wherein a drain pipe is embedded in the ground and an entrance of the drain pipe is opened on the coating layer. Construction.   6. The floor or road pavement structure according to claim 1, wherein a drainage guide groove is provided on an upper surface of the coating layer.

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