KR101682142B1 - Construction method using the composition for light load street - Google Patents

Abstract

The present invention relates to a method for construction of a light load road using a composition for a light load road, capable of protecting natural environment by preventing natural resources from depletion through resource cycling using soil and red clay and recycled aggregates which are industrial byproducts, and especially capable of reducing radiant heat which is a main cause of urban heat island effect by remarkably reducing generation amount of radiant heat compared to a concrete road or an asphalt concrete road using soil and red clay.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of constructing a light-

The present invention relates to a cement paste composition comprising 45 to 55% by weight of a soil, 35 to 45% by weight of recycled aggregate, 8 to 16% by weight of cement, 1 to 5% by weight of a red soil and 1 to 3% And more particularly, to a method of constructing a light road using a road composition.

Recently, there has been a lot of controversy about the emission of toxic substances from cement. As reports and claims of environmental related groups that the amount of carcinogens in domestic cement are three times higher than those in foreign countries are reported to the mass media, The Ministry of Environment and the National Institute of Environmental Research (KNHC), as part of the "Improvement measures for environmental management of cement kilns", have been working on the production of cement products According to the criteria compliance and heavy metal content, it was reported that all factories complied with the current voluntary management standard (30mg / kg), with an average of 11.6mg / kg and 24.7mg / kg of hexavalent chromium.

Cement has been widely recognized as a material that provides strong bonding strength and high strength in civil engineering and construction, and has contributed greatly to the development of mankind's construction technology. Today, however, In the future society, concrete products will be included in the target to reduce the usage from residents and environmental groups gradually due to the well-being culture of human beings and the sense of heterogeneity with the surrounding ecosystem. In order to protect the environment and protect the environment, It has been recognized that finding a substance or substitute material is an important task. In the application of the present invention, a raw material composition constituting a bicycle road newly constructed while damaging a natural environment such as a riverside or a promenade leads to a cement or a secondary pollution source It is clear that the use of materials can not achieve the purposes of this application.

On the other hand, the construction products of India, trails and bicycle roads have various limitations in addition to the characteristics of the resin itself and to overcome the disadvantages of them.

For example, in the case of a color ascon, there is a phenomenon that the repulsive elasticity is insufficient, the fatigue of the foot is increased, the feeling of walking is decreased, and the durability of adhesion is weak and decolorization is caused and the visibility is decreased. In the case of the color to cone, Curing period is necessary for a certain period (2 ~ 3 days in summer, 1 ~ 2 weeks in winter) after installation and many post-processes are required after curing, so there are many time and seasonal restrictions.

In the case of rubber chip elastic products, it is hard to construct during the winter season because it is a room temperature curing type product. It requires a period of 1 to 2 days of hardening and aging due to a long opening time after construction in other seasons. The brakes of the bicycle can not exhibit its function due to the influence of the rubber chip when the temperature is lowered by the room temperature curing type product, and the decolorization and dropout phenomenon occurs over time, The durability is remarkably reduced and the life of the product is short. In the case of actual asphalt, contraction and expansion occur continuously with changes in temperature, and there are problems such as plastic deformation (rutting) and fatigue crack due to the load applied to the road surface, The durability of the product is low in the case of the KALA AS CON product, and the rubber chip product suffers from the lifting and dropping due to shrinkage and expansion difference with the asphalt.

In order to solve these problems, it is preferred to use soil mortar. Particularly, as a bicycle is highlighted as an eco-friendly transportation means, a bicycle-only road has been newly established, and a mortar tends to be used as a material for packing the bicycle road.

As a conventional technique, Korean Patent No. 10-0408594 discloses "loess road pavement material and a manufacturing method thereof. &Quot; The patent discloses a method for providing a road pavement material capable of maintaining natural ocher color while maintaining compression strength , And a high purity loess powder which has fine and loosely processed loess particles is added. To complement the graying of the loess mixture with the increase of the blending amount of the cement, a coloring agent such as natural ocher The packaging material is the technical idea.

Next, Korean Patent Laid-Open Publication No. 2005-0077453 discloses "Loess Loom Packing Method ". In the above patent, the first step is to uniformly mix three parts of Petrofum extract in 100 parts by weight of loess, A second step of mixing a mixture obtained by mixing 200 parts of Portland cement and 300 parts of a cement paste into a mixed mixture by means of a blender, 5 parts of an expanding agent, 6 parts of an AE water reducing agent, A third step of adding a small amount of synthetic iron oxide and a curing accelerator, a fourth step of rubbing and kneading 250 parts of water in the mixture obtained through the third step, 400 parts of dough and gravel prepared in the fourth step A fifth step of pouring the pellet on a portion of the pellet-shaped vibrator, a sixth step of pegging the pellet-shaped vibrator in the pellet-shaped portion, and a step of finishing the pelletized portion of the pellet- And onto.

In the above prior art, all of the active yellow loess (baked loam) is partially used, and at the same time, it is combined with ordinary aggregate and cement to obtain the loess road. However, in order to increase the cohesion of the loess, natural loess was baked at a high temperature to use loess loess. In addition, the price of loess loess is high and the manufacturing cost is increased when the loess is fired at a high temperature .

Disclosure of the Invention The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of circulating and recycling resources using soil and recycled aggregate, which are byproducts of soil and industrial, The present invention provides a method of constructing a light-load road using a composition for a light-load road that can reduce heat island phenomenon in a city.

In order to achieve the above-mentioned object, the present invention provides a method for producing a cement composition comprising 1 to 3% by weight of soil strengthening agent, 1 to 5% by weight of cement, 10 to 16% by weight of cement, 35 to 45% by weight of recycled aggregate, 45 to 55% To form a composition for a light load road; Securing the road width in accordance with the design specifications and providing the boundary stones on both sides, and then installing an auxiliary layer between the boundary stones and the boundary stones; Installing a PE film (polyethylene film) on the auxiliary layer to prevent moisture from being released; Placing the composition for light load on the PE film so as to be parallel to the top surface of the barrier block while uniformly spreading water to the center or one side so as not to float; Installing a PE film on the surface of the light-loadable composition to prevent moisture contained in the light-weight road composition from being evaporated by the hydration reaction; Pressing the surface of the light-loadable composition; And a step of installing a PE film on the surface so as to prevent the moisture contained in the light-weight road composition from being evaporated by the hydration reaction and to protect the road until the passage of the road is opened. .

In addition, in the step of pressing the surface of the light-weight road composition in the present invention, the surface is pressed twice or three times repeatedly at 0 to 10 ° C for 4 hours, at 10 to 20 ° C for 3 hours At an interval of 2 hours at 20 to 30 ° C and at an interval of 1 hour at a temperature of 30 ° C or more and wet and cured until the next operation is performed after completion of the work so as to avoid the influence of wind.

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The light-weight road composition according to the present invention can protect the natural environment by preventing exhaustion of natural resources through resource circulation by using soil and industrial by-products, As a result, radiant heat generation can be significantly reduced as compared with concrete roads or ascon roads, which can reduce radiation heat, which is a main cause of heat island phenomenon, and can provide a pleasant walking environment by generating far infrared rays and negative ions in the soil.

In addition, the natural texture of the soil is harmonized with the surrounding environment to provide a natural environment and durability. It can be used variously according to purpose and purpose in various parks, walkway theme trails, bicycle roads, cultural facility roads and river trails, This has a remarkable advantage.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process diagram showing a method of applying a light load road using a composition for light road according to the present invention. FIG.
FIG. 2 is a sectional view of a light-load road constructed through a light-weight road composition according to the present invention. FIG.
Figs. 3 to 11 are photographs of a process of constructing a light-load road according to an embodiment of the present invention. Fig.

Hereinafter, a method of constructing a light-load road using the composition for light-load road according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a method of constructing a light-weight road using a composition for light-heavy roads. In the present invention, a light-weight road is a road having relatively less influence of loads compared to a roadway such as a roadway, a bicycle road or a bicycle road.

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First, the present invention relates to a method of mixing a soil solidifying agent of 1 to 3 wt%, a soil of 1 to 5 wt%, a cement of 10 to 16 wt%, a recycled aggregate of 35 to 45 wt%, and a soil of 45 to 55 wt% A composition for intermediate run is prepared and reacted with water to prepare. In this case, it should not exceed 90 minutes from mixing to on-site installation, and after 90 minutes, solid soil of soil and soils may be separated from other materials and the desired strength can not be realized. In the case of soil and soil, charge ions on the surface of organic soil particles can meet the soil solidifying agent and replace with Ca +, exchange reaction, and the effect of colloidal silica and alumina can be increased. In this process, a hydrazide hydrate (3C ³ A · CaSO ₄ · 32H ₂ O) is formed and causes a high cohesive force. This is because the ionic reaction can be re-separated by the hydration reaction if it is delayed for a long time after mixing.

Next, as shown in Fig. 3, the road width is secured in accordance with the design specifications, and boundary stones are provided on both sides. Then, an auxiliary layer is provided between the boundary stones and the boundary stones. The width of the road is secured by securing the road width according to the design specifications for constructing roads for India, trails, or bicycles at city, county, county, municipal, local governments or other construction contractors. And crushed gravel or crushed stone with a particle size, and compaction is carried out to form an auxiliary layer.

Next, as shown in FIGS. 4 to 6, a PE film (polyethylene film) is provided on the auxiliary layer to prevent moisture from being separated, and then the light load composition is placed thereon. At the time of pouring, the water is spread evenly so that water does not go to the center or one side of the road, and it is made parallel to the upper surface of the above-mentioned boundary stone.

Next, as shown in FIG. 7, a PE film is provided on the surface so as to prevent the moisture contained in the light-weight road composition from being evaporated by the hydration reaction. Since the composition for light road according to the present invention is used by reacting with water, a hydration reaction occurs due to the combination of cement and water, and hydration heat is generated accompanying hydration. Since the hydration heat is a cause of promoting water evaporation, the PE composition is covered on the surface after the light-weight road composition is laid, thereby preventing moisture from evaporating.

Next, the surface of the composition for light-load road was pressed under the conditions shown in Table 1 below.

Process content Temperature (℃) Number of jobs Waiting time (hr) Curing method Surface compression

0 to 10 2 to 3 4 Wet (PE) curing


10-20 2 to 3 3 20 ~ 30 2 to 3 2 30 to 40 2 to 3 One

As shown in the above Table 1, in order to increase the strength of the road, the tire was squeezed repeatedly 2 to 3 times, at intervals of 4 hours at 0 to 10 ° C, at intervals of 3 hours at 10 to 20 ° C, It is preferable to press them at an interval of 1 hour at a temperature of 30 ° C or higher and wet and cure until the next operation is carried out after the end of the work so as not to be influenced by the wind.

Based on the existing concrete, the fine powder of the red soil is an impurity. Further, as the composition of the high dust powder, the cement particles, the sand gravel and the recycled aggregate sink into the bottom due to the gravity after the casting, resulting in a bleeding phenomenon floating on the surface of the composition. Conventional concrete has a problem that the upper part is porous due to the bleeding phenomenon as described above, and the strength, water tightness, and durability are lowered, resulting in formation of a water film under the aggregate and horizontal reinforcing bar, thereby remarkably deteriorating the adhesion to the cement paste. Therefore, in order to inhibit the phenomenon that the fine powder of the red soil does not react with the cement and flocculate with the water, the soil hardening agent is added to increase the hydration speed and accelerate the condensation, but the remaining fine powder is mixed with the water It is possible to prevent the composition from being peeled off by bleeding by forcibly pressing it in accordance with the timing at which the bleeding phenomenon occurs depending on the season (temperature).

In addition, as shown in FIG. 9, a nonslip protrusion is formed on the surface in order to prevent slippage of the light-weight middle surface and to provide the health function of the user, thereby preventing a safety accident caused by slipping of the pedestrian, Even if the surface pressing operation is completed in accordance with the above conditions, the wet curing can be maintained until the passage is permitted to further improve the compressive strength. During wet curing, a PE film is provided on the surface so as to prevent the moisture contained in the light-weight road composition from being evaporated by the hydration reaction as shown in Fig. 10 and to protect the road until the passage of the road is opened.

Fig. 11 is a state in which the road surface is roughened so as to prevent the slip of the pedestrian and improve the three-dimensional feeling and aesthetics in a state where the road is opened after wet curing.

The composition for light road according to the present invention as described above uses recycled aggregate to inhibit natural destruction caused by the use of natural aggregate and recycles the residues as a residue after aluminum production to recycle the natural soil component and color This can reduce the radiant heat and prevent global warming. In addition, the requirements for soil stabilizers, industrial byproducts, soil and soil, recycled aggregate, and cement are mixed and formulated at specific composition ratios to provide a compressive strength that meets the requirements of environmentally light roads, Light roads can be provided.

Claims (5)

45 to 55% by weight of the soil, 35 to 45% by weight of the recycled aggregate, 8 to 16% by weight of the cement, 1 to 5% by weight of the red soil and 1 to 3% ;
Securing the road width in accordance with the design specifications and providing the boundary stones on both sides, and then installing an auxiliary layer between the boundary stones and the boundary stones;
Installing a PE film (polyethylene film) on the auxiliary layer to prevent moisture from being released;
Placing the composition for light load on the PE film so as to be parallel to the top surface of the barrier block while uniformly spreading water to the center or one side so as not to float;
Installing a PE film on the surface of the light-loadable composition to prevent moisture contained in the light-weight road composition from being evaporated by the hydration reaction;
Pressing the surface of the light-loadable composition; And
Providing a PE film on a surface of the light-weight road composition to prevent moisture contained in the composition from being evaporated by the hydration reaction and to protect the road until the passage of the road is opened;
Wherein the method comprises the steps of: preparing a composition for light-weight roads;
2. The method of claim 1, wherein in the step of pressing the surface of the light-loadable composition, the surface is pressed twice or three times in order to improve the strength of the road, At intervals of 2 hours at 20 to 30 DEG C and at intervals of 1 hour at 30 DEG C or more,
Wherein the wet curing is carried out until the next operation is performed after the completion of the work so as to avoid the influence of the wind.
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