KR102215587B1 - Pavement Method - Google Patents

Abstract

The present invention provides a method for paving the ground, comprising: a construction preparation step (S10) of arranging the ground flat and installing boundary stones at both edges of the ground to indicate the location of the pavement; Per 1 m ^{3 of} Masato, a step of stirring the crushed volcanic stone aggregate 300 to 450 kg, a cementitious binder 300 to 350 kg, and an aqueous solution consisting of water, iron oxide, and an AE water reducing agent to prepare paved soil (S20); Laying and compacting step (S30) in which the prepared paved soil is laid on the ground between the boundary stones, and the paved soil thus laid is pressed with a vibrator or roller to compact it; A curing step (S40) of covering the paved soil with a curing material so that the paved soil compacted in the ground remains wet for a certain period of time (S40); it relates to an eco-friendly natural soil paving method using volcanic stone, characterized in that it comprises.

Description

Eco-friendly natural soil pavement method using clusters of volcanic rocks {Pavement Method}

The present invention relates to a crime prevention on natural soil ground using a function of water and drainage, which is a characteristic of volcanic stone, by manufacturing and laying paved soil using local volcanic stone abundant in an area such as Jeju Island according to the characteristics of the paved area.

In addition, the present invention can reduce the construction cost and increase the use of natural resources, as the paved soil installed on the ground contains natural soil (masato) that can be collected at the construction site as a main component, and pavement installed on the ground. As the soil is reduced to natural soil after deterioration, it is beneficial to the environment and can maximize nature-friendliness, and it relates to a ground paving method using natural soil that can absorb solar radiation heat after paving.

In general, it is paved with asphalt or concrete for construction of sidewalks, parks, trails, and roads inside apartments. It is known that the asphalt or concrete has a relatively high strength and is easy to construct. However, while the pavement construction using such asphalt or concrete has the above-described advantages, it exposes the following problems.

As a prior art, Korean Patent Laid-Open Patent Publication No. 10-2017-0077396 is an eco-friendly paving composition using natural soil mixed with soil and used for paving roads, in which 50 to 70% by weight of natural soil, 15 to 25% by weight of a solid solidifying agent %, 10 to 15% by weight of liquid hardener, 5 to 8% by weight of acrylic acid that provides crosslinking properties of the soil, 06 to 12% by weight of silicone antifoam, 2 to 4% by weight of glycerin, a freeze stabilizer, sodium lauryl sulfate as an emulsifier 04 to 08 Disclosed is a composition for eco-friendly packaging using natural soil, characterized in that it comprises 1 to 2% by weight of sodium silicate as a waterproofing agent.

The prior art also produced a hard image due to poor affinity with the surrounding natural environment. In particular, in the case of parks or trails, there was a problem of damaging the entire natural landscape by generating a feeling of disparity.

In addition, the conventional paving method consisting of cement (concrete) and general aggregate includes cement, so cracks occur in the pavement due to volume reduction in the dry season after paving, and the volume increases due to wetness in the rainy season. In addition, there is a problem in that cracks are generated due to surface curvature.

In addition, the present invention relates to a natural ground pavement crime prevention having a function of water and drainage, which is a characteristic of volcanic stone, by manufacturing and laying paved soil using local volcanic stone abundant in an area such as Jeju Island according to the characteristics of the paved area.

The present invention was conceived to solve the above problems, while using Masato to form a nature-friendly feeling, and by using cement (concrete) but including volcanic stone (local term: pine) aggregate, By utilizing the moisture absorption, containment and discharge function provided by the berth, the moisture contained in the dry season is discharged to prevent cracking on the pavement by shrinkage, and the moisture absorption function in the rainy season prevents surface bending due to volume increase. It is to provide an eco-friendly natural soil paving method using volcanic stone that can be done.

In addition, another object of the present invention is to provide a ground paving method that can reduce construction costs and increase the use of natural resources by using natural soil (masato) that can be collected at the construction site as a component of paved soil laid on the ground. Have. In addition, another object of the present invention is that as the paved soil laid on the ground is reduced to natural soil after deterioration, it is beneficial to preserve the environment and at the same time maximize nature affinity, and a ground paving method capable of absorbing solar radiation after paving To provide.

In the method for paving the ground,

A construction preparation step (S10) of arranging the ground flat and installing boundary stones at both edges of the ground to indicate a pavement location;

Per 1 m ³ of Masato (Masato 1500kg~1800kg), a step of stirring the crushed volcanic stone aggregate 300~450kg, cementitious binder 300~350kg, and an aqueous solution consisting of water, iron oxide, and AE water reducing agent to prepare paved soil (S20 )Wow;

Laying and compacting step (S30) in which the prepared paved soil is laid on the ground between the boundary stones, and the paved soil thus laid is pressed with a vibrator or roller to compact it;

A curing step (S40) of covering the paved soil with a curing material so that the paved soil compacted in the ground remains wet for a certain period of time;

Eco-friendly natural soil paving method using volcanic stone, characterized in that comprising a.

In the case of the present invention, while forming a nature-friendly feeling by using Masato, by using cement (concrete) but including volcanic stone (local term: matsutake) aggregate, moisture absorption contained and discharged by fossil stone Eco-friendly natural soil using volcanic stone that can prevent the occurrence of cracks in the pavement due to shrinkage by discharging moisture contained in the dry season by utilizing the function, and preventing the occurrence of surface bending due to volume increase by the moisture absorption function in the rainy season. Ground paving method is provided.

In addition, in the case of the present invention, the paved soil installed on the ground contains natural soil (masato) that can be collected at the construction site as a component to reduce construction cost and provide a ground paving method that can increase the use of natural resources. Have. In addition, another object of the present invention is that as the paved soil laid on the ground is reduced to natural soil after deterioration, it is beneficial to preserve the environment and at the same time maximize nature affinity, and a ground paving method capable of absorbing solar radiation after paving Is provided.

1 is a block diagram showing a pavement construction process according to the present invention.
Figure 2 is a flow chart showing a pavement construction process according to the present invention.

Hereinafter, a method for paving the environment-friendly natural soil using volcanic stone according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a block diagram showing a pavement construction process according to the present invention.

A B C Aggregate/Masato
(Based on weight: Masato 1m ³ (1500~1800kg)) 375kg / Masato 1m ³ 300kg/Masato 1m ³ or less 450kg/Masato 1m ³ or more Performance Maintenance of appropriate strength and
Crack prevention Strength drop Cracking

<Performance comparison according to the aggregate content of pavement soil>

The aggregate added to the pavement is not too large and is preferably added in a size of at least 15 mm or less, and a preferable amount of the aggregate will be described. The aggregate is related to Masato and its content is determined.At this time, when the ratio of the aggregate to Masato is 375kg: Masato 1m ³ , it has been shown to be the most desirable, such as maintaining an appropriate strength while preventing cracking. If the ratio of Masato is 300: Masato 1m ³ or less, there is a problem that the strength against load such as compressive strength is lowered, and when the ratio of the aggregate and Masato is 450kg: Masato 1m ³ or more, there is a problem that cracks occur.

A B C Cement binder content
Masato 1m ³ (1500~1800kg) standard 300~350kg 300kg or less 350kg or more Performance Maintaining proper strength, fusion with the ground Difficulty expecting enough strength Strength increases, but a feeling of heterogeneity with the ground occurs

<Performance comparison according to the cement content of pavement soil>

In other words, as can be seen from the above table, if the cement content is less than 300 kg, it is difficult to expect sufficient strength. On the contrary, if it is too much above 350 kg, the strength increases, but it is difficult to expect the unique texture of the soil. A sense of heterogeneity occurs, causing a problem that cannot be harmonized. In addition, it goes without saying that the construction cost increases as the use of expensive cement increases. In addition, it was found that the most preferable cement content in the above range (300 to 350 kg) was 325 kg.

The shell contains 80-90% or more of calcium carbonate (CaCo ₃ ) as the main component, and the remaining amount of calcium phosphate {Ca ₃ (Po ₄ ) ₂ } and a trace amount of magnesium carbonate (MaCo ₃ ). The shell powder functions to increase the strength of the binder, and if the amount is too large, the bonding strength is weakened. Shell particles refer to pulverized shell particles having a particle size of 0.2 to 1 mm. In the case of an area adjacent to the beach, it is easy to obtain shells, and by using a crusher after crushing, it is possible to reduce the amount of artificial cement and increase the overall strength of the pavement while creating a nature-friendly pavement.

The key is to mix the shell mixture powder accurately and evenly with a mechanical device such as a vacuum mixer at the weight ratio of shell 7: quicklime 3. Quicklime is alkaline and neutralizes acidity, and when it comes into contact with moisture, it produces fine expansion and precision. It takes time to harden, but once it hardens, it has a property that hardens as the seal gets harder. Zeolite absorbs moisture due to its characteristics and increases adhesion to minimize cracking.

A B C Quicklime/ Shell
(Weight ratio) 3/7 3/7 or less 3/7 or higher Performance Appropriate strength and
Crack prevention Cracking and strength reduction Appropriate curing time exceeded

<Performance comparison according to the content of quicklime in shell powder>

That is, the content of the quicklime is determined in relation to the shell powder. In this case, when the ratio of the quicklime and the shell powder is 3:7, it has been shown to be the most desirable, such as maintaining an appropriate strength while preventing cracking. If the ratio of quicklime and shell powder is less than 3:7, there is a problem that the strength against load such as compressive strength is lowered and cracking occurs.In addition, if the ratio of the quicklime and shell powder is 3:7 or more, the curing time is too long. There was a problem of losing.

Artificial cement is usually Portland cement, and fast-setting alumina cement can be additionally used to shorten the curing time.

A B C Crack prevention cone content
Masato 1m ³ standard 1~1.5kg 1kg or less 1.5kg or more Performance It can maintain proper flexural strength and prevents cracking Expecting flexural strength
difficulty Bending strength is lowered
Cracking

The crack-preventing cone cell may be a oak wood pellet-type cone cell or a Korean paper sludge pellet-type cone cell made of Korean paper sludge. The oak pellet-type corn cell can be added after being made into a pellet state by pounding oak, red oak, and red oak with water. At this time, the cone cell maintains the toughness of the pavement to prevent shattering of pieces.

After cutting the waste Korean paper sludge produced by using Japanese paper mulberry, which has a very long fiber and toughness as the main raw material, to a size of 3 cm or less, the resulting Korean paper sludge is soaked in water and dried again, pellets of 2 to 3 cm size. It is possible to use a pellet-type cone cell manufactured by Hanji Slogi.

The crack-preventing pellet has an advantageous effect of increasing cohesion with concrete and preventing the occurrence of micro-cracks on the surface of concrete due to prolonged exposure. Hanji sludge contains a large amount of tough fiber. The crack-preventing pellet may further contain natural rubber tree sap in the manufacturing process.

When the crack-preventing pellet is used in the present invention, it is possible to prevent the separation of Masato, volcanic stone aggregate and cement that appear during drying. As the fiber of Korean paper and the cement stuck together are maintained by the Korean paper even when it is dried, intrinsic characteristics such as ventilation, moisture permeability, deodorization, air purification and removal of harmful gases can be maintained as it is. Hanji sludge is here, and the crack-preventing cone made of natural rubber tree sap and hanji sludge increases cohesion with concrete (cement) and prevents the occurrence of micro-cracks in cement due to long-term exposure.

<Performance comparison according to the corn cell content of the pavement soil>

The crack-preventing cone keeps the pavement tough and prevents shattering. As can be seen from the above table, it is less than the amount of the konsel 1㎏, it is difficult to expect the bending strength, showed that when the amount of the above konsel 1.5㎏ the cracking of the bending strength is significantly reduced.

Accordingly, in order to prevent cracking and maintain an appropriate flexural strength, the content of the cone cell is preferably 1 to 1.5 kg, and among them, 1.2 kg is the most preferable.

In addition, according to the present invention, a certain amount of iron oxide is contained in the pavement soil, which is to allow the color of the pavement soil to have a color similar to that of ocher by the contained iron oxide. Accordingly, in order for the paved soil to maintain a color similar to that of loess, the yellow iron oxide and red iron oxide constituting the iron oxide must be mixed in an optimal ratio, and the most preferable mixing ratio of the yellow iron oxide and red iron oxide is 3:1 based on the volume ratio. to be.

On the other hand, in the additive, the aqueous solution is made by adding a certain amount of AE water reducing agent to water. In this case, the water is 200 L per 1㎥ of Masato, and the AE water reducing agent is added to have a volume of 0.3% of the total aqueous solution. Here, briefly explaining the AE water reducing agent, the AE water reducing agent is a surfactant having remarkable foaming properties, and it evenly generates microscopic independent bubbles in the concrete to prevent freezing and thawing ( It improves durability such as 耐凍結融解性) and corrosion resistance, while improving the fluidity of concrete (cement, shell powder) to facilitate pouring, lowering the thermal conductivity of hardened concrete, and watertightness. It is also known to have secondary effects, such as improving sex.

However, if too much is used, it is not only uneconomical, but also various obstacles such as a decrease in compressive strength, a decrease in adhesion strength with other additives such as aggregates and Masato occur, so the amount of addition must be maintained as described above.

In addition, according to the present invention, a certain amount of iron oxide (5 kg per 1 m ³ of masato) or loess powder (5 kg per 1 m ³ of masato) is contained in the paved soil, which has a color similar to that of loess by the contained iron oxide. This is to do. Accordingly, in order for the paved soil to maintain a color similar to that of loess, the yellow iron oxide and red iron oxide constituting the iron oxide must be mixed in an optimal ratio, and the most preferable mixing ratio of the yellow iron oxide and red iron oxide is 3:1 based on the volume ratio. to be. When using loess powder, do not use iron oxide.

Again, in the above-described laying and compaction step, the paved soil produced by the above-described process is laid on the ground between the boundary stones installed at both edges (indicating the pavement position), and the paved soil is combined using a construction machine. It will be chopped.

In addition, in the curing step, the paved soil compacted through the laying and compacting steps is kept wet for a certain period of time. To this end, the surface of the paving soil is covered with a curing material. Here, as the curing material, a PE film (Polyethylene Film) may be adopted and used.

After the curing step as described above, when the paved soil is hardened, a surface cleaning step is performed. In the surface cleaning step, cracking and the presence of foreign substances are checked, and the surface of the paved soil is smoothly arranged.

The present invention further includes a volcanic stone aggregate manufacturing step (S60) of pulverizing the volcanic stone to 0.3 ~ 1.5 cm to produce a volcanic stone aggregate before the paving soil manufacturing step.

In the step of manufacturing paved soil (S20), paved soil is prepared by stirring 375 kg of volcanic stone aggregate crushed into 0.3 to 1.5 cm per 1 m ^{3 of} Masato, 325 kg of cementitiousness, and an aqueous solution consisting of water, iron oxide, and AE water reducing agent. .

In the step (S20) of producing a paved soil, the cementitious binder is, per 100% by weight of the binder, 60 to 70% by weight of ordinary Portland cement, 20 to 25% by weight of alumina cement, and 10 to 15% by weight of blast furnace slag powder. It proceeds using the configured fast-setting binder.

In the step (S20) of manufacturing the pavement soil, the cementitious binder includes 70 to 50% by weight of artificial cement and 30 to 50% by weight of the shell mixture per 100% by weight of the binder, but the shell mixture has a particle size of 0.2 to 100% by weight per 100% by weight. It consists of 70% by weight of 1mm shell powder and 30% by weight of quicklime (7:3).

Although the present invention has been described in connection with the above-mentioned preferred embodiments, the scope of the present invention is not limited to these embodiments, and the scope of the present invention is defined by the following claims, and is equivalent to the present invention. It will include various modifications and variations pertaining to.

The reference numerals set forth in the claims below are merely to assist the understanding of the invention and do not affect the interpretation of the scope of rights, and the scope of the rights should not be narrowly interpreted by the reference numerals described.

S10: Construction preparation stage
S20: Paving soil manufacturing step
S30: Installation and compaction stage
S40: curing stage

Claims (8)

delete delete delete delete delete delete delete In the method for paving the ground,
A construction preparation step (S10) of arranging the ground flat and installing boundary stones at both edges of the ground to indicate a pavement location;
Paving soil manufacturing step (S20) for producing paved soil by stirring per 1 m ^{3 of} Masato, 300-450 kg of crushed volcanic stone aggregate, 300-350 kg of cementitious binder, and an aqueous solution consisting of water, iron oxide, and AE water reducing agent;
Laying and compacting step (S30) in which the prepared paved soil is laid on the ground between the boundary stones, and the paved soil thus laid is pressed with a vibrator or roller to compact it;
A curing step (S40) of covering the paved soil with a curing material so that the paved soil compacted on the ground remains wet for a certain period of time;
It is composed including,

Prior to the manufacturing step of the paving soil,
Further comprising a volcanic stone aggregate manufacturing step (S60) of pulverizing the volcanic stone to 0.3 ~ 1.5 cm to prepare a volcanic stone aggregate,

In the step of manufacturing the paved soil (S20),
Paved soil was prepared by stirring an aqueous solution consisting of 375 kg of volcanic stone aggregate crushed into 0.3 to 1.5 cm, cementic binder 325 kg, and water, iron oxide, and AE water reducing agent per 1 m ^{3 of} Masato,

The cementitious binder,
Including 70 to 50% by weight of artificial cement and 30 to 50% by weight of the shell mixture per 100% by weight of the binder,
The shell mixture is composed of 70% by weight of shell powder with a particle size of 0.2 to 1mm per 100% by weight and 30% by weight of quicklime (7:3),

In the step (S20) of manufacturing paved soil,
1 to 1.5 kg per 1500 kg of Masato contain a crack-preventing cone cell containing at least one selected from among the oak wood pellet-type corn cells or the Korean paper sludge made of Korean paper sludge,

In the step (S20) of manufacturing paved soil,
It contains an additional 5 kg of loess powder per 1 m ^{3 of} Masato,

The step of preparing the pavement soil,
The paved soil additionally contains 5 kg of iron oxide per 1 m ³ of Masato,
The iron oxide is an eco-friendly natural soil paving method, characterized in that the yellow iron oxide and red iron oxide are mixed in a volume ratio of 3:1.

Images