KR100812751B1 - Water permeable concrete pavement structure and construction method thereof - Google Patents

Abstract

A pavement method of a high durability permeable concrete pavement material is provided to increase binding strength of a base layer and a surface layer, to prevent lowering of strength, contraction and crack formation of concrete and to have excellent strength and durability. A pavement method of a high durability permeable concrete pavement material comprises the steps of: preparing recycled aggregate or crushed aggregate for a base layer; preparing permeable concrete for a base layer by mixing 5~30 weight percent binder to 70~95 weight percent recycled aggregate or crushed aggregate for a base layer; forming a base layer by paving and tamping the permeable concrete for a base layer; preparing recycled aggregate or crushed aggregate for a surface layer; preparing permeable concrete for a surface layer by mixing 5~30 weight percent binder and 2~5 weight percent paints to 65~93 weight percent recycled aggregate or crushed aggregate for a surface layer; and forming a surface layer by paving and tamping the permeable concrete for a surface layer, and coupling the permeable concrete for a surface layer to surface gaps of the base layer, wherein the binder used for the permeable concrete for the base layer and the permeable concrete for the surface layer is composed of 40~68 weight percent portland cement, 5~25 weight percent auxiliary binder, 0.03~0.3 weight percent pozzolan polymer stearate, 25~35 weight percent water and 0.00025~0.0105 weight percent high absorptive resin.

Description

Highly durable permeable concrete package and packaging method thereof {WATER PERMEABLE CONCRETE PAVEMENT STRUCTURE AND CONSTRUCTION METHOD THEREOF}

The present invention relates to a permeable concrete package and a packaging method thereof, and more particularly, to aggregate and aggregate aggregates, binders, and the like to secure a surface void of a specific size or more to form a base layer, so as to permeate and fill moisture during the rainy season and in the air during the dry season. To evaporate moisture.

In addition, the permeable concrete for the surface layer is laid and compacted on the upper portion of the base layer so that the permeable concrete for the surface layer can be filled in the form of chipping in the pores of the base layer, thereby improving the bonding force between the base layer and the surface layer as well as the durability of the package. Due to the superabsorbent resin, the endothermic phenomenon due to the latent heat of vaporization occurs when the humidity of the package is controlled and the moisture contained in the package evaporates, thereby lowering the temperature of the permeable concrete package, thereby increasing the temperature of the summer package. It is to minimize the damage caused by the expansion.

In general, pitched concrete helps plant growth such as roadside trees by allowing rainwater to penetrate into the ground through the gap between aggregate and aggregate, and in rainy, heavy rain and rainy seasons, rainwater seeps into the ground and is stored in the soil. It is a trend that is widely spread on roads, sidewalks, and bicycle paths because it prevents flooding and has a comfortable advantage for pedestrians because rainwater does not flow or flow on the sidewalk.

However, the permeable concrete has a larger exposed air gap than the concrete, so that many cross-sectional areas are exposed to the atmosphere, and rainwater and other harmful substances penetrate into the air bubbles, capillary pores, and gel pores to elute soluble materials. Accelerates due to rapid deterioration of durability and surface bleeding caused by water flowing back due to the limitation of drainage due to bleeding and heavy rain, etc. In addition to providing a separate adhesive layer, the whitening phenomenon, in addition to the deterioration of durability, damages the aesthetics of the package surface and increases the cost of surface reprocessing. And a full review in terms of economics Is the actual circumstances.

Looking more closely at this problem through the hydration mechanism of cement, in order for the cement to fully hydrate, theoretically about 25% of the weight of the cement is required, but the actual amount of water used when mixing concrete exceeds 25%. The excess surplus water bleeds to the concrete surface or evaporates into the air, so that part of the space occupied by the surplus water is filled with cement hydration products, and the remaining part is left as voids (capillary pores), thereby reducing the strength and shrinkage of the concrete. It is a cause of cracks.

Therefore, an object of the present invention is to solve the problems with the conventional water-permeable concrete package and its packaging method was not good durability, by mixing aggregate, binder, superabsorbent resin, etc., the base layer to secure a surface void of a specific size or more It is formed, by laying and compacting the surface concrete on the top of the base layer so that the surface concrete can be filled in the form of the chipping in the pores of the base layer, as well as to improve the bonding force between the base layer and the surface layer, as well as permeability for the base and surface layers Highly durable permeable concrete pavement material and its packaging method that prevents the decrease of strength, shrinkage, cracking, etc. of concrete and has excellent strength and durability by mixing concrete with aggregate, superabsorbent resin, bonding aid, pozzolanic polymer stearate, etc. In providing.

Therefore, the packaging method of the high durability permeable concrete package of the present invention for achieving the above object,
Preparing a base aggregate recycled or crushed aggregate,
Preparing a base permeable concrete by mixing 5-30 wt% of the binder with 70-95 wt% of the prepared aggregate or crushed aggregate for the base;
Paving the base layer by laying and compacting the prepared permeable concrete for the base layer;
Preparing a surface recycled aggregate or crushed aggregate,
Preparing a surface permeable concrete by mixing 5-30% by weight of the binder and 2-5% by weight of the pigment to 65-93% by weight of the prepared aggregate or crushed aggregate for surface preparation,
The prepared surface layer permeable concrete is laid on the base layer, and packed to form a surface layer, comprising the step of bonding the surface layer permeable concrete in the form of chipping to the surface pores of the base layer,

The binder used in the base permeable concrete and the surface permeable concrete 40 to 68% by weight of Portland cement, 5 to 25% by weight of the binding aid, 0.03 to 0.3% by weight of the pozzolanic polymer stearate, 25 to 35% by weight of water and super absorbency It consists of 0.00025-0.0105 weight% of resin.

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In addition, the base aggregate recycled aggregates or crushed aggregates are passed through 100% in 1.5 mesh sieve, 90-100% in 2 mesh sieve, 0 to 25% pass through 10 mesh sieve, it becomes a recycled aggregate or crushed aggregate,

The packaged base layer is characterized in that at least 70% of the surface voids are at least 8mesh in the minimum pore size.

In addition, the base aggregate recycled aggregates or crushed aggregates are passed through 100% in 0.8 mesh, 90-100% in 1 mesh and pass through 0 to 25% in 10 mesh, it becomes a recycled aggregate or crushed aggregate,

The packaged substrate is characterized in that at least 55% of its surface voids have a minimum pore size of at least 3 mesh.

In addition, the recycled aggregate or crushed aggregate for the surface layer is passed through 100% in a 2 mesh body, 90 to 100% in a 2.5 mesh body, and becomes a recycled aggregate or crushed aggregate passing 0 to 25% in a 10 mesh body,

The packaged surface layer is characterized in that more than 70% of the surface voids of the minimum pore size is more than 9 mesh.

In addition, the binding aid is characterized in that the blast furnace slag, pozzolanic and purified fly ash selected from the group consisting of one or two or more.

In addition, the superabsorbent polymer may be any one of a starch-based polymer by graft polymerization, a cellulose-based polymer by carboxy methylation, and a synthetic polymer-based polymer by crosslinking-providing polymerization. Adjust accordingly, but determine by compound test.

And the highly durable permeable concrete package according to the present invention is to form a base layer by laying and compacting the base permeable concrete, which is a mixture of 5 to 30% by weight to 70 to 95% by weight of the base aggregate recycled or shredded aggregates,
On the upper part of the base layer, the surface layer is formed by laying and compacting the surface permeable concrete by mixing 5-30% by weight binder and 2-5% by weight of the binder to 65-93% by weight of the recycled aggregate or crushed aggregate for the surface layer. It is formed by bonding the surface permeable concrete of the base layer in the form of chipping permeable concrete,
The binder is used in the base permeable concrete and the surface permeable concrete 40 to 68% by weight of Portland cement, 5 to 25% by weight of the binding aid, 0.03 to 0.3% by weight of the pozzolanic polymer stearate, 25 to 35% by weight of water And 0.00025 to 0.0105 wt% of a super absorbent polymer.

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In addition, the base aggregate recycled aggregates or crushed aggregates are passed through 100% in 1.5 mesh sieve, 90-100% in 2 mesh sieve, 0 to 25% pass through 10 mesh sieve, it becomes a recycled aggregate or crushed aggregate,

The packaged base layer is characterized in that at least 70% of the surface voids are at least 8 mesh in size.

In addition, the base aggregate recycled aggregates or crushed aggregates are passed through 100% in 0.8 mesh, 90-100% in 1 mesh and pass through 0 to 25% in 10 mesh, it becomes a recycled aggregate or crushed aggregate,

The packaged substrate is characterized in that at least 55% of its surface pores are at least 3 mesh in size.

In addition, the recycled aggregate or crushed aggregate for the surface layer is passed through 100% in a 2 mesh body, 90 to 100% in a 2.5 mesh body, and becomes a recycled aggregate or crushed aggregate passing 0 to 25% in a 10 mesh body,

The packaged surface layer is characterized in that more than 70% of the surface voids of the minimum pore size is more than 9 mesh.

In addition, the binding aid is characterized in that the blast furnace slag, pozzolanic and purified fly ash selected from the group consisting of one or two or more.

The superabsorbent polymer may be any one of a starch-based polymer by graft polymerization, a cellulose-based polymer by carboxy methylation, and a synthetic polymer-based polymer by crosslinking-providing polymerization. Adjust, but determine by compound test.
Hereinafter, the present invention will be described in detail.
First, the crusher layer is formed by a conventional method to facilitate packaging of the permeable concrete. Then, the base permeable concrete is prepared by mixing 5-30 wt% of the binder with 70-95 wt% of the base aggregate recycled or crushed aggregate.
The binder constituting the base permeable concrete is 40 to 68% by weight of Portland cement, 5 to 25% by weight of binder aid, 0.03 to 0.3% by weight of pozzolanic polymer stearate, 25 to 35% by weight of water and super absorbent polymer 0.00025 to 0.0105% by weight Since the superabsorbent polymer is used, the superabsorbent polymer is preferably added in an amount of 0.001 to 0.03% by weight based on the amount of water used.
When the permeable concrete is prepared by mixing as described above, it is laid and compacted in the crusher layer, which is prepared first, to complete the pavement of the pavement.

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When the base layer packaging is completed as described above, when the surface layer is to be packaged again, the surface layer should be packed before the base permeable concrete is cured.

When packing the permeable concrete for the surface layer, 100% passes through the 5mesh sieve, 90-100% passes through the 6mesh sieve, and 0-30% passes through the 10mesh sieve. .

In addition, as the aggregate for the surface layer, 100% passes through 2mesh body, 90-100% passes through 2.5mesh body, and 0-25% passes through 10mesh body. The minimum size can be more than 9mesh.

Since the binder of the surface layer is the same as the binder for the base layer, the description thereof will be omitted since it has already been sufficiently described in describing the base layer.

And when mixing the binder to lower the compounding amount of the aggregate and to add a mixture of 2 to 5% by weight of the pigment to express the color of the concrete, it is possible to have an excellent color because it is permeable concrete for the surface layer.

The mixing ratio of the pigment is preferably 2 to 5% by weight, because when the mixing ratio of the pigment is less than 2% by weight, it becomes a small amount and the color is not sufficiently expressed, and when the mixing ratio exceeds 5% by weight, it becomes excessive. In addition, anion emitting materials such as tourmaline may be additionally mixed, and anion emitting materials such as tourmaline have a function of emitting far infrared rays as well as anions. The amount of tourmaline is added in a small amount within a range that does not affect the physical properties of the package.

When the concrete for the surface layer is prepared in the same manner as above, the paving is completed by laying it on the base layer and compacting the surface layer concrete so as to be chipped into the surface voids of the base layer.

In addition, although a separate description has been omitted above, it is a matter of course that the concrete surface may be cut and a separate surface treatment process may be additionally constructed.

Highly durable permeable concrete package of the present invention as described above,

70 to 95% by weight of the base aggregate recycled or crushed aggregate is mixed with 5 to 30% by weight of the binder, wherein the binder is 40 to 68% by weight of Portland cement, 5 to 25% by weight of the auxiliary auxiliary material, and 0.03 to 0.3 weight of the pozzolan polymer stearate. %, 25-35% by weight of water and superabsorbent concrete for base layer of 0.00025-0.0105% by weight of superabsorbent resin are laid and compacted to form a base layer,

The upper portion of the base is mixed with 65 ~ 93% by weight recycled aggregate or crushed aggregate, 40 to 68% by weight Portland cement, 5 to 30% by weight binder and 2 to 5% by weight pigment, wherein the binder is 40 to 68% Portland cement A surface layer is formed by laying and compacting a water-permeable concrete for surface layer which is composed of weight%, 5-25 weight% of binding aid, 0.03-0.3 weight% of pozzolanic polymer stearate, 25-35 weight% of water and 0.00025-0.0105 weight% of super absorbent polymer. It is characterized in that the surface permeable concrete of the base layer is formed by combining in the form of the chipping surface, the bonding strength between the base concrete and the surface concrete is excellent and the durability of the concrete to improve its durability Of course, the voids of the base layer are secured to a predetermined size or more, and the voids are filled with the surface concrete in the form of chipping to improve the interlayer bond strength. It is.

And the aggregate for the base material of the combination is already having the characteristics as described in the packaging method, 100% passes in 1.5 mesh body, 90-100% passes in 2 mesh body and 0-25% passes in 10 mesh body or It is made of crushed aggregate, the packaged base layer may be 70% or more of the surface voids of the minimum pore size of 8mesh or more, and also 100% pass through 0.8mesh body, 90 ~ 100% pass through 1mesh body 10mesh body 0 to 25% of the recycled aggregate is passed, and the packaged base layer is not limited to 55% or more of the surface pores of which the minimum size of the pores may be 3mesh or more.

In addition, since the binder of each package has already been sufficiently described in the above packaging method, description thereof will be omitted.

In the above description, only the packaging of the package of the present invention has been described as a multilayer, but the package of the present invention may be a single layer, and the package is packaged in the same manner as the method of packaging the base layer at the time of construction of the multilayer, It is, of course, possible to complete the monolayer permeable packaging by limiting the particle size of the aggregate.

That is, to prepare a recycled aggregate or crushed aggregate, and prepared permeable concrete prepared by mixing 5-30 wt% of the binder sufficiently described above to 70 ~ 95 wt% of the prepared recycled aggregate or crushed aggregate, laying the prepared permeable concrete, It is also possible to form a single layer package.

As described above, the present invention has been described with reference to the above embodiments, but it is not necessarily limited thereto, and various modifications may be made without departing from the scope and spirit of the present invention.

As described above, according to the highly durable water-permeable concrete package of the present invention and its packaging method, aggregates, binders, superabsorbent resins, and the like are mixed to form a base layer having a surface void of a specific size or more, and the upper portion of the base layer. By laying and compacting the concrete for the surface layer, the concrete for the surface layer can be filled in the form of chipping in the pores of the base layer, thereby making the bonding force between the base layer and the surface layer excellent, as well as controlling the humidity of the package and packing by the super absorbent resin. Endothermic phenomenon due to latent heat of vaporization occurs when evaporation of moisture contained in the sieve, thereby lowering the temperature of the permeable concrete package to minimize the damage caused by expansion of the package due to the rise in temperature in summer do.

In addition, by mixing the base and surface permeable concrete with aggregate, binding aid, pozzolanic polymer stearate, etc. to improve the physical properties, it has excellent strength and durability, and recycles the waste concrete, which is discarded waste, as recycled aggregate. It not only saves, but also prevents environmental pollution caused by industrial waste.

Claims (14)

In the packaging method of high durability permeable concrete package, Preparing a base aggregate recycled or crushed aggregate, Preparing a base permeable concrete by mixing 5-30 wt% of the binder with 70-95 wt% of the prepared aggregate or crushed aggregate for the base; Paving the base layer by laying and compacting the prepared permeable concrete for the base layer; Preparing a surface recycled aggregate or crushed aggregate, Preparing a surface permeable concrete by mixing 5-30% by weight of the binder and 2-5% by weight of the pigment to 65-93% by weight of the prepared aggregate or crushed aggregate for surface preparation, The prepared surface layer permeable concrete is laid on the base layer, and packed to form a surface layer, comprising the step of bonding the surface layer permeable concrete in the form of chipping to the surface pores of the base layer, The binder used in the base permeable concrete and the surface permeable concrete 40 to 68% by weight of Portland cement, 5 to 25% by weight of the binding aid, 0.03 to 0.3% by weight of the pozzolanic polymer stearate, 25 to 35% by weight of water and super absorbency A packaging method of a highly durable permeable concrete package, characterized in that the resin is 0.00025 ~ 0.0105% by weight. The method of claim 1, The base aggregate recycled aggregate or crushed aggregate is 100% passed in 1.5 mesh sieve, 90-100% passed in 2 mesh sieve, 0 to 25% passed through 10 mesh sieve, it becomes a recycled aggregate or crushed aggregate, The paving base layer is a packaging method of a highly durable permeable concrete package, characterized in that 70% or more of the surface voids of the minimum pore size is 8mesh or more. The method of claim 1, The base aggregate recycled aggregate or crushed aggregate is 100% pass through 0.8mesh body, 90-100% pass through 1mesh body, and becomes 0% to 25% recycled aggregate passed through 10mesh body, The packaged base layer is a packaging method of a highly durable permeable concrete package, characterized in that 55% or more of the surface voids of the minimum pore size is 3mesh or more. The method of claim 1, The recycled aggregate or shredded aggregate for the surface layer is 100% passed in 2mesh sieve, 90-100% passed in 2.5mesh sieve, and 0 ~ 25% passed through 10mesh sieve, becomes the recycled aggregate or shredded aggregate, The packaged surface layer is a packaging method of a highly durable permeable concrete package, characterized in that 70% or more of the surface voids of the minimum pore size is more than 9mesh. The method according to any one of claims 1 to 4, The bonding aid is a packaging method of a highly durable permeable concrete package, characterized in that the mixture of blast furnace slag, pozzolanic and purified fly ash, one or two or more selected from the group consisting of. The method according to any one of claims 1 to 4, The super absorbent polymer may be any one of a starch polymer by graft polymerization, a cellulose polymer by carboxy methylation, and a synthetic polymer polymer by crosslinking providing polymerization. The method according to any one of claims 1 to 4, When the pigments are mixed, tourmaline is further mixed, characterized in that the packaging method of high permeability concrete package. In the highly durable permeable concrete package, The base layer is formed by laying and compacting the base permeable concrete which is mixed with 5 to 30% by weight of the binder to 70 to 95% by weight of the base aggregate recycled or crushed aggregate. On the upper part of the base layer, the surface layer is formed by laying and compacting the surface permeable concrete by mixing 5-30% by weight binder and 2-5% by weight of the binder to 65-93% by weight of the recycled aggregate or crushed aggregate for the surface layer. It is formed by bonding the surface permeable concrete of the base layer in the form of chipping permeable concrete, The binder is used in the base permeable concrete and the surface permeable concrete 40 to 68% by weight of Portland cement, 5 to 25% by weight of the binding aid, 0.03 to 0.3% by weight of the pozzolanic polymer stearate, 25 to 35% by weight of water And 0.00025 to 0.0105% by weight of a super absorbent polymer. The method of claim 8, The base aggregate recycled aggregate or crushed aggregate is 100% passed in 1.5 mesh sieve, 90-100% passed in 2 mesh sieve, 0 to 25% passed through 10 mesh sieve, it becomes a recycled aggregate or crushed aggregate, The packaged base layer is a highly durable permeable concrete package, characterized in that more than 70% of the surface voids of the minimum pore size is more than 8mesh. The method of claim 8, The base aggregate recycled aggregate or crushed aggregate is 100% pass through 0.8mesh body, 90-100% pass through 1mesh body, and becomes 0% to 25% recycled aggregate passed through 10mesh body, The packaged base layer is a highly durable permeable concrete package, characterized in that 55% or more of the surface voids of the minimum pore size is 3mesh or more. The method of claim 8, The recycled aggregate or shredded aggregate for the surface layer is 100% passed in 2mesh sieve, 90-100% passed in 2.5mesh sieve, and 0 ~ 25% passed through 10mesh sieve, becomes the recycled aggregate or shredded aggregate, The packaged surface layer is a highly durable permeable concrete package, characterized in that more than 70% of the surface voids of the minimum pore size is more than 9mesh. The method according to any one of claims 8 to 11, The binding auxiliary material is a highly durable permeable concrete package, characterized in that the mixture of one or two or more selected from the group consisting of blast furnace chain slag, pozzolanic and purified fly ash. The method according to any one of claims 8 to 11, The super absorbent polymer is a highly durable water-permeable concrete package, characterized in that any one of a starch-based polymer by graft polymerization, a cellulose-based polymer by carboxy methylation and a synthetic polymer based on crosslinking providing polymerization. The method according to any one of claims 8 to 11, When forming the base layer, a highly durable permeable concrete package characterized in that the base layer is formed by further mixing tourmaline with the pigment.