KR100965199B1 - Light reflex concrete using dredged soil and glass beads - Google Patents

Abstract

PURPOSE: A light reflecting concrete using dredgred soil and glass beads is provided to maintain function of a concrete structure and to reduce dredgred soil treatment cost. CONSTITUTION: A light reflecting concrete using dredgred soil and glass beads contains concrete installed with concrete composition of high strength and glass beads for dye which is applied on the surface of concrete. The concrete composition of high strength contains 50-60 weight parts of dredgred soil, 40-50 weight parts of mixing material containing natural materials. The mixing material contains 1-2 weight parts of Gelidium amansii, 48-49 weight parts of Pachymeniopsis elliptica, 48-49 weight parts of unsaturated polyester liquid resin, 1-2 weight parts of organic peroxide, and 1-2 weight parts of light oil.

Description

Light Reflex Concrete Using Dredged Soil And Glass Beads

The present invention does not use water in the conventional high-strength concrete composition composed of cement, water, aggregate (sand, gravel, etc.) and admixtures, and adds dredged soil in place of the cement and aggregate, and replaces the natural material in place of the admixture. Concrete is poured by using mixed admixture, and glass grain for coating is applied on the surface of the poured concrete. Using mixed dredged soil as aggregates such as cement and sand, and mixed with natural materials containing algae as the main ingredient It is environmentally friendly, excellent in strength, and does not cause defects such as cracks, which is structurally excellent and economical, and relates to light reflection concrete using dredged soil and glass pellets to ensure safety of pedestrians by reflecting light at night.

Dredged soil refers to clay or mud such as sludge including pollutants dug from the bottom of reservoirs, rivers and ports.

Since the dredged soil is difficult to recycle, waste is disposed of by transporting to the far sea in the high seas. Therefore, because of the high cost and difficulty in budgeting, it is illegally landed or thrown away, which causes another secondary environmental pollution.

In the case of the Four Major Rivers Restoration Project, which is being promoted by the Ministry of Land, Transport and Maritime Affairs, the treatment of dredged soil is also a problem.

Therefore, there is an urgent need to recycle the dredged soil as aggregate for concrete.

High-strength concrete refers to concrete that has a standard design strength of 400kg / ㎠ or more in concrete and 270kg / ㎠ or more in lightweight concrete, based on the standard of construction construction standards. The effect of the reduction of self-weight and early form demoulding according to the increase of initial strength can be expected.

Conventional high strength concrete is composed of cement, water, aggregate (sand, gravel, etc.) and admixtures.

Among the admixtures, admixtures are used in a small amount in the range of 1% or less in the volume of cement. Admixtures are those in the range of 5% or more, all of which differ only in the amount of the injected amount. Is used interchangeably.

Admixtures such as admixtures are used to secure work performance and fluidity, and to control air volume. As the conventional admixture, fly ash, silica fume, blast furnace slag, fine powder, AE (Air Entraining Agent), water reducing agent or fluidizing agent, etc. are mainly made of chemicals.

The use of the above-mentioned dredged soil in place of cement and aggregate of concrete and using a conventional admixture is problematic.

FIG. 1 is a photograph showing that plastic shrinkage cracks occurred in specimens before and after concrete curing when a conventional admixture is used in dredged soil.

The conventional admixture is generally used to dilute by adding a predetermined water in the form of a powder (powder). When the conventional admixture containing water is used in dredged soil, plastic shrinkage cracking occurs in the concrete structure as shown in FIG. 1 before and after the concrete curing. This is because aggregates such as sand or gravel should not penetrate the water, and should be a hard and solid material such as stones with no change in volume.

Therefore, in constructing concrete structures, when the dredged soil is used in place of aggregate, the concrete structure will lose its function and be exposed to the risk of collapse if there is no special means to replace the conventional admixture.

The present invention is proposed to solve the conventional problems as described above.

The purpose is not to use water in the conventional high-strength concrete composition consisting of cement, water, aggregate (sand, gravel, etc.) and admixtures, and to add the dredged soil in place of the cement and aggregate, and to replace the natural material in place of the admixture. Concrete is poured by using mixed admixture, and glass grain for coating is applied on the surface of the poured concrete. Using mixed dredged soil as aggregates such as cement and sand, and mixed with natural materials containing algae as the main ingredient It is environmentally friendly, excellent in strength, and does not cause cracks such as cracks, so it is structurally excellent and economical, and provides light reflecting concrete using dredged soil and glass pellets to ensure safety of pedestrians by reflecting light at night.

In order to solve the above technical problem, the present invention does not use water in the conventional concrete composition for high-strength concrete composed of cement, water, aggregate (sand, gravel, etc.) and admixtures, and instead of dredged soil in place of the cement and aggregate. Added to the admixture containing natural materials in place of the admixture,

High strength concrete composition; And, glass beads for coating applied to the surface of the concrete poured with the high-strength concrete composition; provides a light reflective concrete using a dredged soil and glass grains, the high-strength concrete composition is dredged soil; It provides a light reflective concrete using a dredged soil and glass grains, characterized in that consisting of; and a mixed material containing natural ingredients, such as wood starch and herbal extracts, unsaturated polyester liquid resin, organic peroxide and light oil.

In addition, the dredged soil is 50 to 60 parts by weight, and the admixture containing the natural material provides a light reflective concrete using dredged soil and glass grains, characterized in that composed of 40 to 50 parts by weight.

In addition, the admixture containing the natural material is 1 to 2 parts by weight of wood starch extract, 48 to 49 parts by weight of herbal extract, 48 to 49 parts by weight of unsaturated polyester liquid resin, organic peroxide 1 with respect to 100 parts by weight of the admixture containing natural materials. It provides light reflective concrete using dredged soil and glass grains, characterized in that consisting of ~ 2 parts by weight and 1 to 2 parts by weight of diesel.

According to the present invention, the following effects are expected.

First, it provides light reflecting concrete using dredged soil and glass pellets to recycle dredged soil treated as waste as cement and aggregate.

Second, it provides light reflecting concrete using dredged soil and glass grains using the admixture containing environmentally friendly natural materials excellent in binding strength with dredged soil and can shorten the curing speed in place of the conventional admixture.

Third, it provides economical and high value-added dredged soil and glass grains using light grains, which do not use expensive cement and aggregate and reduce the treatment cost of dredged soil.

Fourth, the present invention provides light reflective concrete using dredged soil and glass pellets that can be poured underwater with compressive strength of high-strength concrete that satisfies the specification.

Fifth, it provides light reflecting concrete using dredged soil and glass beads to ensure the safety of pedestrians at night due to its excellent light reflecting performance.

Figure 1 is a photograph of the plastic shrinkage cracking occurred in the specimen in the process before and after the concrete curing when using a conventional admixture for cement and dredged soil.
Figure 2 is a photograph of the process of making concrete specimens and curing them in water using the high-strength concrete composition of the present invention.
Figure 3 is a photograph of the process of making a concrete specimen using the high-strength concrete composition of the present invention to test the compressive strength.
Figure 4 is a photograph of the process of confirming the fine aggregate residual oil distribution ratio using the high-strength concrete composition of the present invention NO.
Figure 5 is a photograph of the process of the underwater concrete placing test using the high-strength concrete composition of the present invention.
Figure 6 is a photograph of the demolded specimen after the underwater concrete placing test using the high-strength concrete composition of the present invention.
7 is a photograph showing a specimen produced by using the high-strength concrete composition of the present invention is a photograph showing a state in which no crack occurs.
8 is a photograph showing a state in which a crack does not occur in the photograph taken during the road pavement test using the high-strength concrete composition of the present invention.
9 is a quality test and inspection report for the specimen using the high-strength concrete composition of the present invention.
10 is a photograph showing a process of preparing a test specimen of light reflective concrete using the dredged soil and glass grains of the present invention.
Figure 11 shows the process of applying the glass beads for coating in the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 2 is a photograph of the process of making a concrete specimen using the high-strength concrete composition of the present invention and curing it in water, Figure 3 is a process of testing the compressive strength by making a concrete specimen using the high-strength concrete composition of the present invention This picture was taken.

Figure 4 is a photograph of the process of confirming the fine aggregate residual oil distribution ratio using the high-strength concrete composition of the present invention NO.16, Figure 5 is a process for performing the underwater concrete casting test using the high-strength concrete composition of the present invention This picture was taken.

6 is a photograph of the demodulated specimen after the underwater concrete placing test using the high-strength concrete composition of the present invention, Figure 7 is a photograph taken of the specimen produced by using the high-strength concrete composition of the present invention does not cause cracks The picture shows the state.

8 is a photograph showing a state in which no crack occurs in the road pavement test using the high-strength concrete composition of the present invention, Figure 9 is a quality test for the specimen using the high-strength concrete composition of the present invention And inspection report.

Light reflective concrete using the dredged soil and glass grains of the present invention do not use water in the conventional concrete composition for high-strength concrete composed of cement, water, aggregate (sand, gravel, etc.) and admixtures, and dredged soil in place of the cement and aggregate Was added to the admixture containing natural materials in place of the admixture,

High strength concrete composition; And a glass grain for coating applied to the surface of the concrete poured with the high-strength concrete composition, wherein the high-strength concrete composition comprises dredged soil; And a miscible material containing natural ingredients of woodworm extract and herbal extract, natural materials including unsaturated polyester liquid resin, organic peroxide and light oil.

In the blending ratio, the dredged soil is preferably 50 to 60 parts by weight and the admixture containing the natural material is 40 to 50 parts by weight, and the admixture containing the natural material is 100 parts by weight of the admixture containing natural materials. It is preferable to comprise 1 to 2 parts by weight of the wormwood extract, 48 to 49 parts by weight of the herbal extract, 48 to 49 parts by weight of unsaturated polyester liquid resin, 1 to 2 parts by weight of organic peroxide, and 1 to 2 parts by weight of light oil.

As described above, the dredged soil refers to clay or mud, such as sludge, including contaminants dug from the bottom of reservoirs, rivers and harbors, and is difficult to recycle because it is difficult to recycle.

Therefore, the inventors of the present application devised the present invention for the recycling of environmentally friendly and economical dredged soil.

Dredged soil used in the present invention is added to replace the aggregate such as conventional cement and sand and gravel and the compounding ratio is administered more than the amount of conventional cement and aggregate. The compounding ratio is found by the inventors of the present application through a number of experiments and trial and error in the range that satisfies the compressive strength of the specification standards 50 to 60 parts by weight is most suitable.

Originally, all concrete prohibits the use of soils of clay components such as dredged soil as aggregate. This is because the content of moisture and impurities is high and the volume change of the dredged soil itself causes problems in terms of durability and strength after concrete pouring.

However, the dredged soil used in the present invention solved the above problems by using a natural admixture described below.

In addition, the dredged soil is not limited to the soil under the water, such as rivers, seas and land, but also includes the soil of the land and can be collected anywhere in the vicinity of the construction site to reduce the transportation cost. And as can be seen in the specimen under water curing of Figure 2, since the color of the dredged soil finally appears as the color of the concrete, it is advantageous in terms of design of the building to use the dredged soil of the desired color, such as loess or black soil at the construction site.

The admixture containing the natural materials includes natural components of unsaturated wood extract and herbal extract, unsaturated polyester liquid resin, organic peroxide and diesel oil,

100 parts by weight of admixture containing natural materials, 1 to 2 parts by weight of woodworm extract, 48 to 49 parts by weight of herbal extract, 48 to 49 parts by weight of unsaturated polyester liquid resin, 1 to 2 parts by weight of organic peroxide and 1 to 2 light oil It is most preferable to comprise by weight.

The wood starch extract extracts the wormwood which is a kind of algae at high temperature to make orphan sticky material. Done. The inventors of the present application have come to the present invention by paying attention to the fact that there is a natural adhesive component in the wormwood and herb extract. In addition, the natural components of the wormwood extract and the herbal extract serves to control the slump value to remove the foreign substances in the dredged soil and to secure the construction. Moreover, it is most preferable to comprise 1 to 2 parts by weight of woodworm extract and 48 to 49 parts by weight of herbal extract based on 100 parts by weight of the admixture containing natural materials in the blending ratio.

The unsaturated polyester liquid resin serves to harden the granules like aggregates such as gravel by coating the granules of dredged soil in a capsule form. Moreover, it is most preferable to comprise 48-49 weight part of unsaturated polyester liquid resins with respect to 100 weight part of admixtures containing a natural material in a compounding ratio.

The organic peroxide functions as a hardening material for hardening the unsaturated polyester liquid resin. Moreover, it is most preferable to comprise 1-2 weight part of organic peroxides with respect to 100 weight part of admixtures containing a natural material in a compounding ratio.

The diesel oil has a function of increasing the curing rate. When the light oil is not added, it takes about 3 to 4 hours to cure the concrete composition of the present invention, and when added, it is cured within 30 minutes. Moreover, it is most preferable to comprise 1-2 weight parts of light oils with respect to 100 weight part of admixtures containing a natural material in a compounding ratio.

Since the admixture containing the natural material is in the form of a liquid, unlike the conventional admixture, it is not necessary to dilute and use water, thereby ensuring construction property in the field.

And since the admixture containing the natural material densifies the pores of the concrete, increases the adhesion between the particles and improves the water tightness and strength, when the admixture containing the natural material is cured in combination with the dredged soil, plastic shrinkage cracking is suppressed. It maintains a predetermined compressive strength based on the specification and can be utilized as underwater concrete.

Figure 3 is a photograph taken to test the compressive strength by making a concrete specimen using the high-strength concrete composition of the present invention, Figure 9 is a quality test and inspection report. That is, the result of performing the test through the process shown in FIG. 3 is FIG. A summary of the results shown in FIG. 9 is shown in [Table 1].

The samples collected in the experiments were based on the clays collected from the 34-2 branch line of Mt. Sindeok-ri, Hwawon-myeon, Haenam-gun, and Haesung clay from the dredged soil of Mokpo North Port.

This experiment was intended to test the applicability of the concrete as a high strength concrete composition used for special purposes, not limited to the composition of general concrete including plain concrete.

As a result, the compressive strength up to 671kg / cm2 (67.1Mpa), which is much higher than 400kg / cm2 (40Mpa), was obtained.

Figure 5 is a photograph of the process of the underwater concrete placing test using the high-strength concrete composition of the present invention, Figure 6 is a photograph of the demolded specimen after the underwater concrete placing test using the high-strength concrete composition of the present invention. . In addition, Figure 7 is a photograph showing a specimen produced by using the high-strength concrete composition of the present invention is a photograph showing a state in which no crack occurs.

As shown in Figures 5 to 7 the high-strength concrete composition of the present invention does not mix or scatter with water even when placed in water, it is possible to produce a stable specimen. In addition, no cracking occurs after curing.

8 is a photograph showing a state in which a crack does not occur in the photograph taken during the road pavement test using the high-strength concrete composition of the present invention. As shown in FIG. 8, the local soil, which is easily dredged soil, which can be easily collected locally, was mixed with a mixed material and agitator containing natural materials, assuming a general road, and placing and curing tests were performed. Got it.

Therefore, the concrete using the light reflective concrete composition using the dredged soil and glass grain of the present invention is a breakwater-proof block for preventing scrubbing, coated stone TTP, loading capacity of the dock, ground stability treatment, river homemade facilities, release block, parked road facilities In addition, it can be widely used for stabilization of forest roads, farm roads and reinforcement of existing facilities. This is because, as described above, the strength and durability are excellent and underwater pouring is possible.

10 is a photograph showing a process of preparing a test specimen of light reflective concrete using the dredged soil and glass grains of the present invention.

Figure 11 shows the process of applying the glass beads for coating in the present invention.

The present invention is coated with a glass glass for coating on the surface of the concrete poured with the high-strength concrete composition. It is preferable to use KSL2511 as a texture composition material for the coating glass, and it has superiority in (1) optical properties, (2) physical properties, and (3) chemical properties.

(1) The optical property is a retroreflective property, which is called retroreflective, when light is projected onto a glass beam, the mirror surface is formed by refracting inside the glass ball, thereby maintaining the same angle as the incident angle of light and reflecting it. To say.

(2) The physical properties of the glass ball is a round ball shape, so the stress is the same in any direction, and therefore the stress in the forward direction is strong.

(3) Since the chemical properties of glass are used as the material of the glass eggs, they are chemically stable, indicating that they are resistant to water resistance, alkali resistance, acid resistance, and heat resistance.

In addition, the state of the glass ball is a set of particles that are settled, there should not be a lump that does not collapse even under a light impact, specific gravity of 2.4 ~ 2.6, refractive index of 1.50 ~ 1.64 is suitable.

Concrete poured with the high-strength concrete composition of the present invention is a so-called bleeding in which the relatively light moisture or fine substances inside the concrete surface rise due to osmotic pressure, as shown in FIG. This occurs, and moisture and fine materials are formed on the concrete surface as shown in FIG.

When the glass beads for the paint of the present invention are applied to the concrete surface as shown in FIG. 11 (c) before the moisture and the fine material on the concrete surface generated in the bleeding process are evaporated, the mixture of the glass particles for the water and the fine material and the paint is mixed. This is made. After the complete concrete curing process, the moisture in the mixture is completely evaporated. At this time, as shown in FIG. 11 (d), only the latency including the glass beads for coating remains on the concrete surface and is coated.

Latency, including the glass beads for coating coated on the concrete surface serves to give a gloss to the concrete surface during the day, at night to reflect the light even a little light can ensure the safety of the pedestrian as well as the design aesthetics.

Therefore, the present invention can be applied to light reflecting road boundary stone, footpath road boundary stone, and central separator, etc., and structural performance such as high strength is required to contribute to the safe operation of various vessels such as the Haitai collecting line and the horse-drawn line that operate island islands. It can be applied by installing light reflecting concrete cover stones on breakwaters, breakwaters and pier tip of island islands.

In addition, it would be more effective if used for the purpose of preventing safety accidents during the night vehicle operation, such as preventing the safety accident in the night vehicle operation and agricultural machinery operation of the island wallpaper.

In conclusion, the present invention does not use water in the conventional high-strength concrete composition composed of cement, water, aggregate (sand, gravel, etc.) and admixtures, and add dredged soil in place of the cement and aggregate, and replace the admixture with natural The concrete is poured using the admixture containing the material, and the glass grain for coating is applied on the surface of the poured concrete.The dredged soil, which is discarded as waste, is used as aggregates such as cement and sand, and it contains natural materials containing algae as the main ingredient. It is eco-friendly, excellent in strength, and does not cause cracks such as cracks, so it is structurally excellent and economical, and it provides light reflecting concrete using dredged soil and glass grains to ensure safety of pedestrians by reflecting light at night.

Although the present invention has been described in connection with the preferred embodiment as mentioned above, various modifications and variations are possible without departing from the gist of the present invention, and can be used in various fields.

Therefore, the claims of the present invention include modifications and variations that fall within the true scope of the invention.

Claims (4)

delete Concrete poured using a mixed material containing dredged soil and natural materials as a concrete composition; And,
Characterized in that it comprises a; glass for coating applied to the surface of the concrete;
The admixture containing the natural material is light reflective concrete using dredged soil and glass grains, characterized in that it comprises natural components of unsaturated wood extract and herbal extract, unsaturated polyester liquid resin, organic peroxide and light oil.
In claim 2,
The dredged soil is 50 to 60 parts by weight and the admixture containing the natural material is light reflection concrete using dredged soil and glass grains, characterized in that composed of 40 to 50 parts by weight.
The method of claim 2 or 3,
The admixture containing the natural material is 1 to 2 parts by weight of woodworm extract, 48 to 49 parts by weight of herbal extract, 48 to 49 parts by weight of unsaturated polyester liquid resin, and 1 to organic peroxide based on 100 parts by weight of the admixture containing natural materials. Light reflection concrete using dredged soil and glass grains, characterized in that composed of 2 parts by weight and 1 to 2 parts by weight of diesel.

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