KR20120070153A

KR20120070153A - A reducing noise-drainage pavement and paving method thereof

Info

Publication number: KR20120070153A
Application number: KR1020100131587A
Authority: KR
Inventors: 정홍기
Original assignee: (주)일우피피씨
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2012-06-29

Abstract

The present invention is a packaging method for packaging a low noise drainage pavement formed by a compaction process using a roller after laying a low noise drainage asphalt concrete on the base layer, by applying an adhesive resin on the base layer before laying the low noise drainage asphalt concrete A low noise drainage package packaging method and package comprising a step of forming an adhesive layer, a step of laying low noise drainage asphalt concrete on the adhesive layer, and a compaction step of spraying and compacting sand on the laid low noise drainage asphalt concrete It is about.

Description

Low noise drainage package and its packing method {A REDUCING NOISE-DRAINAGE PAVEMENT AND PAVING METHOD THEREOF}

The present invention relates to a low noise drainage package and a packaging method thereof, and more particularly, to a low noise drainage package and a method of packaging the same, which have improved strength and stability by preventing asphalt concrete from cooling during the compaction process of the low noise drainage package.

The pavement of the road is different depending on the person passing through it. In general, concrete or asphalt concrete is paved on the road for moving the vehicle, and sidewalk blocks are mainly used on roads where people move. It is usually wrapped in stone or gravel.

Asphalt concrete pavement, which is paved a lot on the road for vehicle movement, is packaged by mixing asphalt and aggregate with a particle size adjusted according to the use purpose. Asphalt is a natural or artificial part in which the hard part is composed of petroleum. It refers to a black or black brown semi-solid cross-linked substance remaining after evaporation by the method, and when heated, it gradually changes into a liquid phase. As the asphalt has excellent adhesiveness and excellent adhesion to mineral materials, the aggregate and the aggregate can be grafted with a bonding material or adhesive material, and because it is insoluble in water and not impermeable, it is excellent in water resistance and can change the viscosity according to the purpose of use. Its construction is also excellent.

The paving body using the asphalt concrete as described above is paved by paving the asphalt concrete on the road for forming the road, and compacting the asphalt concrete at high pressure to secure the required density and porosity of the asphalt concrete. .

In the compaction process, the asphalt concrete is compacted using various compaction equipments using rollers.

The asphalt concrete adheres to the rollers due to the adhesive property of the asphalt during the compaction process. As a result, the asphalt concrete is sprayed with an anti-sticking agent or water to the roller during the compaction process, or in the winter, a material that does not soften the asphalt, such as vegetable oil, is compacted. The process was carried out.

However, when the compaction process is performed using water, the water sprayed on the roller falls on the asphalt concrete to lower the temperature of the asphalt concrete.

In particular, since the drainage asphalt concrete has a high porosity, water sprayed on the roller flows into the voids of the asphalt concrete to cool the drainage asphalt concrete as a whole.

As mentioned above, as the temperature of asphalt concrete drops sharply due to water, the viscosity of asphalt coated on aggregate is rapidly increased or solidified, so that the compaction effect of asphalt concrete decreases instantly due to the decrease in adhesive strength. Because it is not. This causes the compaction density of the asphalt concrete pavement layer to increase the water permeability of the asphalt concrete while forming a large porosity. If the porosity of the asphalt concrete pavement is increased due to lack of compaction on site, the possibility of plastic deformation of the asphalt concrete pavement sinking into U-shape on the pavement surface where the automobile wheel touches due to the traffic load is increased due to consolidation due to the traffic load. There was a problem that the durability of the asphalt concrete pavement and the asphalt concrete causes the peeling phenomenon.

The present invention is to solve the problems of the prior art as described above to prevent the rapid cooling of asphalt concrete due to the water in the compaction process does not use water in the pavement compaction process of low noise drainage pavement to reduce defects in asphalt concrete pavement It is an object of the present invention to provide a low noise drainage pavement packing method for securing the required density and porosity of the low noise drainage pavement to improve the strength and durability of the asphalt concrete pavement.

In addition, an object of the present invention is to provide an asphalt concrete pavement packaged by the above paving method.

The present invention is a packaging method for packaging a low noise drainage pavement formed by a compaction process using a roller after laying a low noise drainage asphalt concrete on the base layer, by applying an adhesive resin on the base layer before laying the low noise drainage asphalt concrete An adhesive layer forming process of forming an adhesive layer, a low noise-drainage asphalt concrete laying step on the adhesive layer, a low noise-drainage package package comprising a compacting step of spraying and compacting sand on the installed low-noise drainage asphalt concrete Provide a method.

In addition, the adhesive resin provides a low noise drainage package packaging method, characterized in that the use of emulsified asphalt.

In addition, the sand provides a low noise drainage package packaging method characterized in that the spraying 0.5 ~ 2kg / ㎡.

In addition, the particle size of the sand provides a low noise and drainage package packaging method, characterized in that 0.5 ~ 2㎜.

In addition, when the base layer is composed of one or a plurality of layers formed of asphalt concrete provides a low noise and drainage package packaging method characterized in that the sand is sprayed and compacted during the compaction process of the asphalt concrete layer.

In addition, the present invention is a low noise drainage package characterized in that the packaging by the packaging method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

As used herein, the terms 'about', 'substantially', and the like, are used at, or in close proximity to, numerical values when manufacturing and material tolerances inherent in the stated meanings are set forth, and an understanding of the present invention may occur. Accurate or absolute figures are used to help prevent unscrupulous infringers from unlawful use of the disclosure.

1 is a process diagram of a packaging method for packaging a low noise drainage package according to the present invention, Figure 2 is a cross-sectional view showing a compaction process of a low noise drainage package according to the present invention.

The present invention is a packaging method of a low noise drainage package including a compacting process using a roller after forming an adhesive layer on the base layer and laying a low noise drainage asphalt concrete as a packaging method for packaging a low noise drainage package.

The present invention, as shown in Figure 1 to form a base layer as described above or to form a base layer, the adhesive layer forming step of applying an adhesive resin on the base layer, the laying step of laying a low noise drainage asphalt concrete on the adhesive layer, the laid low noise It is a low noise drainage pavement packaging method including a compaction step of spraying and compacting sand on the drainage asphalt concrete.

The base layer 100 is a layer supporting the package by dispersing the high pressure due to the traffic load of the package. Generally, the drainage concrete or the low noise drainage asphalt concrete layer is formed in a single layer or a plurality of multi-layered structures. In the repair work of asphalt concrete pavement will be able to be packed with low noise drainage pavement of the present invention.

The adhesive layer 200 forming process is to apply the adhesive resin on the base layer before laying the low noise drainage asphalt concrete to form an adhesive layer 200. The base layer 100 and the low noise drainage asphalt concrete 300 are attached to the low noise drainage process during compaction process using a roller. The asphalt concrete 300 prevents the base layer 100 from being separated, and the pavement prevents the low noise-drainable asphalt concrete 300 from being peeled from the base layer 100 due to the traffic load after pavement.

The adhesive resin may be a general road adhesive resin, but most preferably using an emulsified asphalt, the coating thickness is preferably applied to 0.1 ~ 2.0mm.

When the coating thickness of the adhesive resin is less than 0.1mm, the use effect of the adhesive resin is insignificant, and when the coating thickness exceeds 2.0mm, the drainage efficiency of the low noise drainage package may be reduced.

The laying process is a process for laying low noise drainage asphalt concrete 300, the low noise drainage asphalt concrete is 70 ~ 90% by weight coarse aggregate, 7 ~ 27% by weight fine aggregate, 3 ~ 8% by weight of mixed aggregate and general asphalt or It can be prepared by mixing modified asphalt.

The mixed aggregate and asphalt will preferably be mixed in a weight ratio of 8.5 to 9.5: 0.5 to 1.5 to produce a low noise drainage asphalt concrete.

After the installation step, the compacting step of spraying and compacting sand on the asphalt concrete is carried out.

In general, the compaction process carried out during pavement of asphalt concrete pavement is a compacting process to secure required density and porosity by using compaction equipment on asphalt concrete. The most important process that determines long-term commonality of asphalt concrete pavement is heated asphalt Appropriate compaction should be made according to the characteristics of the concrete or the air temperature.

The compacting process reduces the voids and increases the density of the asphalt concrete mixture during the compacting process, and as a result of the compacting process, the asphalt-coated aggregates adhere to each other. This increases the mixing and friction between the aggregates, and controls the porosity of the asphalt concrete.

In the compaction process, the type of compaction equipment, the number of compaction methods, and the compaction method are not determined in advance, but must be determined by carrying out test packaging considering the conditions of the site.

The porosity of the low noise drainage pavement is preferably compacted at a porosity of 12 to 25% as a volume ratio of the small voids contained therein relative to the total volume of the asphalt concrete.

The present invention is sprayed sand before the compaction process in order to prevent the low noise-drainable asphalt concrete to adhere to the roller during the compaction process using a roller such as a tire roller, as shown in Figure 2 low noise-drainable asphalt concrete 300 and roller 500 The sand 400 is sandwiched between them to form fine pores between the asphalt concrete and the roller to prevent the low noise drainage asphalt concrete from adhering to the roller.

The sprayed sand 400 is small in amount and does not require a removal process and may exist as aggregate on the surface of the low noise drainage package, and may prevent slippage of the package.

When the sand 200 is sprayed at less than 0.5kg per m 2, the amount of sand entering between the low noise and drainage asphalt concrete 300 and the roller 500 may be small, and the adhesion preventing effect may be insignificant. The voids of the package can be blocked to reduce drainage.

Therefore, the sand is preferably sprayed 0.5 ~ 2kg / ㎡, most preferably to spray sand at 1 ~ 1.5kg / ㎡.

When the particle size of the sand is less than 0.5mm, the asphalt concrete may be attached to the rollers because fine pores are not formed between the asphalt concrete and the rollers.

If it exceeds 2mm, the adhesion prevention efficiency due to sand spraying does not increase any more, and the grain size of the sand to be sprayed may be desirable because the surface of the package may be uneven due to the sand having a large particle size.

In addition, when the base layer of the low noise drainage package consists of one or more layers formed of asphalt concrete, sand is sprayed during the compaction process of the asphalt concrete layer, and the asphalt concrete layer is formed by the compaction process to improve durability and stability of the base layer. Can be.

The low-noise drainage asphalt concrete is made by mixing aggregate and asphalt, and the asphalt concrete used in the present invention may use general asphalt concrete, and modified asphalt concrete using modified asphalt with rubber powder and additives for performance improvement. May be used to form a package.

In addition, the low-noise drainage package of the present invention can be applied to the heat shield coating to increase the heat shielding effect on the package after packaging.

The heat shielding paints can be used in any of the currently available heat shielding paints that can be used in the present invention as a paint including an inorganic compound having an insulating effect that blocks heat transfer, but has a low thermal conductivity and a fine circular hollow body having a noise preventing function. It would be desirable to use a thermal barrier paint containing a compound in the form of a powder (Ceramic Microscopic Hollow Spheres).

Examples of the compound having the form of Ceramic Microscopic Hollow Spheres include aluminosilicate or silica beads.

The low noise drainage package according to the present invention manufactured by the compaction process using sand as described above is a general low noise drainage package and drainage, which is compacted by using the compaction process without cooling the asphalt concrete during the compaction process. Porosity is similar, but better Marshall stability, Immersion Marshall residual stability, Cantabro loss rate, Dynamic stability.

According to the present invention, the method for packing low noise drainage pavement according to the present invention prevents separation of the base layer and low noise drainage asphalt concrete by rollers during compaction process by forming an adhesive layer between the base layer and the low noise drainage asphalt concrete. In order to prevent the asphalt concrete from adhering to the roller, sand is sprayed and compacted on the upper portion of the asphalt concrete to prevent the concrete from peeling off by compacting without cooling the asphalt concrete, and the defect rate is low.

In addition, there is an effect of preventing the low noise drainage asphalt concrete due to the traffic load to be peeled off by the adhesive layer after the pavement.

In addition, by preventing cooling during the compaction process of asphalt concrete, there is an effect of improving the Marshall stability, the immersion Marshall residual stability, the cantabros loss rate, and the dynamic stability of the asphalt concrete.

1 is a process chart of a packaging method for packaging a low noise drainage package according to the present invention.
2 is a cross-sectional view showing a compaction process of a low noise drainage package according to the present invention.

Hereinafter, an embodiment of packaging the low noise drainage package of the present invention is shown, but is not limited thereto.

Asphalt Concrete Manufacturing

60% by weight of coarse aggregate of KS F 2357 standard, 37% by weight of fine aggregate of KS F 2357 standard, 3.0% by weight of filling material of KS F 3501 standard, and 100 parts by weight of KS M 2201 6.0 parts by weight of asphalt was prepared by mixing and heating.

Example

An adhesive layer was formed by applying an emulsified asphalt on the base layer formed of asphalt concrete. The asphalt concrete prepared in the adhesive layer was prepared on the adhesive layer, and after spraying sand 1.0kg / m 2 on the asphalt concrete, a compaction process was carried out to compact with a tire roller, thereby packing a low noise drainage package according to the present invention.

Comparative example

The asphalt concrete prepared in the above was laid and subjected to a compaction process with a tire roller while spraying water to package a low noise drainage package.

◎ Comparative experiment of Examples and Comparative Examples

Each asphalt concrete prepared as described above was heated to 180 ℃ stirred with a mixer to prepare a specimen, Marshall stability, immersion Marshall residue stability, Cantabro loss rate, dynamic stability, water permeability, porosity was measured.

1. Experimental Method

1) Marshall stability test is to measure the plastic resistance to the flow of asphalt mixture and was measured according to the test method for resistance to plastic flow of bitumen mixture using Marshall tester (KS F 2337).

2) The dynamic stability according to the wheel tracking test is a test for evaluating the plastic deformation dynamic resistance of the asphalt mixture. The dynamic stability (times / mm) measured at this time is determined according to the wheel tracking test (KS F 2374) of the asphalt concrete mixture. Measured.

3) Permeability test was conducted to evaluate the permeability of the drainage asphalt mixture package. Indoor permeability test was performed according to the permeability test method (KS F 2322) using the specimen prepared indoors.

4) The cantabro test is carried out to verify the validity of the permeability and drainage mixtures for aggregate scattering resistance as a surface material and is measured according to the cantabro test method for asphalt mixtures (KS F 2492).

5) Porosity test is carried out to measure the porosity of permeable and drainable asphalt mixture. In general, the porosity is measured by the method of KS F 2364. The apparent density is KS F 2446 and the theoretical maximum density is KS F 2366.

2. Experimental results

The experimental results are shown in Table 1.

Item Test Methods unit Example 1 Comparative Example 1 Marshall stability KS F 2337 N 4924 4,135 Submersible Marshall
Residual stability KS F 2337 % 78 70 Cantabros
Loss rate KS F 2492 % 17 25 Dynamic stability KS F 2374 Times / mm 1,662 1,245 Permeability KS F 2322 cm / sec 0.018 0.020 Porosity KS F 2337 % 17.3 19.5

As shown in Table 1, the low noise drainage pavement according to the present invention is subjected to a compaction process using sand that does not cool asphalt concrete, so that Marshall stability, water immersion Marshall residue stability, and cantabro loss rate are much higher than those of the comparative example using water. It can be seen that excellent, there is no significant difference in permeability and porosity.

<Description of Major Symbols in Drawing>
100: base layer 200: adhesive layer
300: low noise drainage asphalt concrete 400: sand
500: roller

Claims

In the pavement method of packaging a low noise drainage pavement formed by compaction process using a roller after laying the low noise drainage asphalt concrete on the base layer,
An adhesive layer forming process of forming an adhesive layer by applying the adhesive resin on the base layer before laying the low noise drainage asphalt concrete,
Laying process for laying low-noise drainage asphalt concrete on the adhesive layer;
And a compaction step of spraying and compacting sand on the laid low noise drainage asphalt concrete.

The method of claim 1,
The adhesive resin packaging method of low noise drainage package, characterized in that using the emulsified asphalt.

The method of claim 1,
The sand is a low noise drainage package packaging method, characterized in that spraying 0.5 ~ 2kg / ㎡.

The method of claim 1,
Low-noise drainage package packaging method, characterized in that the particle size of the sand is 0.5 ~ 2㎜.

The method of claim 1,
When the base layer is composed of one or a plurality of layers formed of asphalt concrete, the low noise drainage pavement packaging method characterized in that the sand is sprayed and compacted during the compaction process of the asphalt concrete layer.

A low noise drainage package characterized in that it is packaged by the packaging method of any one of claims 1 to 5.