KR101173139B1 - Pavement composition for soil road, and method for paving soli road using the same - Google Patents

Abstract

PURPOSE: A loess mortar composition for soil or loess road pavement and a soil or loess road packing method soil using the same are provided to reduce use amount of cement which is an inorganic binder. CONSTITUTION: A loess mortar composition for soil or loess road pavement comprises 100.0 parts by weight of a mixture including loess and granite soil or loess, 3-10 parts by weight of sludge, 3-5 parts by weight of cement, and 1-3 parts by weight of guar gum as an impact absorber. A weight ratio of the granite soil to loess in the mixture is 1:0.5-1. The loess is loess powder having particle size of 100-300 mesh, and an average particle diameter of the granite soil is 0.1-5 mm. The loess mortar composition for soil or loess road pavement additionally includes an inorganic coagulant. The inorganic coagulant is one or more selected from calcium chloride, sodium chloride, KCL and magnesium chloride. The soil or loess road pavement method comprises the following step: forming a superficial layer after installing the loess mortar composition for soil or loess road pavement on the surface of a subbase.

Description

Pavement composition for soil road, and Method for paving soli road using the same}

The present invention relates to road pavement using soil, and more particularly, to a road pavement mortar composition using ocher and a method for constructing ocher pavement using the same.

In general, sidewalks, park walks, and inside walkways have been paved with asphalt, cement concrete, cement blocks, etc. for a long time.

Asphalt or cement concrete has the advantages of high strength and ease of construction, but asphalt or cement pavement has poor water permeability, so rainwater is collected on the road surface during rainfall, which not only inconveniences pedestrians, but also freezes in winter. If the road surface is slippery, it causes pedestrian accidents, and if asphalt or residual cement washed by rainwater flows into the strata, it contaminates groundwater and rivers in order to damage the environment, thus causing problems with affinity with the natural environment. Paving with asphalt or cement concrete on roads, bicycle paths, etc. does not contribute to affinity with the natural environment.

Recently, in order to improve the problems of asphalt or cement concrete pavement and to show environment-friendly and natural atmosphere, technologies for paving sidewalks, park walkways, and inside walkways of apartments using soil or loess are being developed. Soil or loess mortar has the disadvantage of lowering strength compared to conventional asphalt or cement concrete pavement due to the addition of soil or loess, and shrinkage or cracking occurs when drying because water-soluble components contained in soil or loess are eluted by rain water. It is causing many problems.

The prior art related to road pavement using soil or loess is very well known, for example, by a non-cement composition using active kaolin crushed by heat treatment with masato with aggregate in Korean Patent Publication No. 10-0951413. Road paving is started, and Masato is registered in Korean Patent No. 10-0632699. A composition for soil soft packaging consisting of fine slag powder, natural anhydrous gypsum, ethyl hydroxy ethyl cellulose and water is disclosed, but is not satisfactory in terms of strength.

In addition, Korean Patent Publication No. 10-0291601 discloses a soil mortar composed of soil (viscous clay or sandy soil), cement, hygroscopic admixture, fine aggregate (sand), water, and admixture for improving performance. No. 10-987117 discloses ocher powder, sand, pozzo egg powder, crack-resistant expandable admixture, eco-friendly hardener white portant, anhydrous gypsum powder, citric acid powder, vinyl acetate copolymerizable resin, natural cellulose, and zinc stearate. The present invention discloses an environmentally friendly loess mortar composition, and in the prior art of using siliceous material as a cement substitute component, Korean Patent Publication No. 10-0790373 discloses a mixture of blast furnace slag fine powder, quicklime and anhydrous gypsum in calcined paper sludge. To improve the homogenization of the soil, which is homogenized, and in Korea Patent Publication No. 10-0711115 Cerium, magnesium sulfate dihydrate, magnesium chloride hydrate, discloses a clay and agent for consisting of a cationic surfactant.

The above prior arts use cement, cement, steel slag, fly ash, and other chemical solidifying agents as a solidifying agent to solve the strength degradation due to the addition of soil and loess, thereby improving the strength suitable for pedestrian or bicycle traffic. However, there is a problem that does not exhibit the unique elasticity of the ocher pavement.

The present invention solves the problem of strength reduction due to the addition of soil and loess while reducing the amount of cement using waste sludge generated in the process of producing polysilicon, which is an industrial waste, and improves the absorption of shocks. The present invention has been completed by providing a pavement composition having a similar feeling to the road.

The present invention aims to provide a loess or loess mortar composition for the soil or loess pavement so as to exhibit a shock absorbency (buffering) similar to that of the soil or loess road in nature as well as problems caused by the decrease in strength due to the addition of soil or loess. In more detail, natural resin is used to reduce the amount of cement used as an inorganic binder by using waste sludge generated in the manufacturing process of polysilicon, which is an industrial waste, and to maintain shock absorption (bufferability) similar to natural soil roads or loess roads. The present invention is suitable for the passage of pedestrians or bicycles, and the purpose of the present invention is to provide a loess mortar composition for natural soil or ocher pavement, and to provide a pavement method for loess pavement using the loess mortar composition.

Means for solving the road pavement soil or loess mortar composition for the purpose of the present invention is a waste sludge (hereinafter referred to as 'polysilicon sludge'), cement, It consists of adding uniformly by adding water to the guar gum and the coagulant accelerator as a shock absorber, more specifically, 3 to 10 parts by weight of polysilicon sludge, cement 3 to 100 parts by weight of ocher and masato mixture or ocher It consists of adding to 5 weight part and 1 to 3 weight part of guar gum, and mix | blending uniformly.

The ocher and masato blend according to the present invention is preferably blended in a ratio of 1: 0.5 to 1 by weight ratio of ocher to masato, and the ocher uses fine powder loess, and if necessary, about 100 to 300 mesh loess powder. It is possible to use, Masato is preferably used in the average particle diameter of 0.1 ~ 5mm in consideration of the case of applying to sidewalks, trails and bicycle roads.

In addition, the polysilicon sludge (waste sludge generated in the polysilicon manufacturing process), which is composed as one of the main components of the present invention, is used as an inorganic binder together with cement, and the chemical composition is mostly composed of SiO ₂ and CaO and is alkaline. Trace amounts of K ₂ O and Na ₂ O are included.

The polysilicon sludge is produced in large quantities in the form of sludge of high moisture content with 62% moisture content from the manufacturing process of polysilicon, which is a core basic material of the solar energy industry, with the development of the solar energy industry, but dried and pulverized into a fine powder form. Since the polysilicon sludge contains glassy SiO ₂ and exhibits pozzolanic reactivity when reacted with portland cement, the polysilicon sludge, which is a waste generated in large quantities, is part of the cement which is a binder of soil or loess mortar in the present invention. It is very advantageous to use as an alternative.

In addition, guar gum composed as a main component of the present invention is a natural resin that is a water-soluble polymer material, and is mixed with soil or loess mortar to exhibit shock absorption effect. The shock absorption effect of guar gum according to the present invention is soil or loess. When the guar gum formulated with mortar is placed on the surface layer, it is voided by the interaction between the expansion and dehydration by the hydration reaction of the guar gum during the laying process and the expansion action during the solidification by the hydration reaction of the binder such as cement. This occurs, the pavement by the inherent elastic force of guar gum natural resin exhibits a shock-absorbing action, the mixing ratio of guar gum is 1 to 3 parts by weight based on 100 parts by weight of ocher and masato mixture or ocher It is preferable.

In particular, the impact absorbing effect is that when the blending ratio of polysilicon sludge and cement is too high, the strength of the pavement is too high, so even if the guar gum is blended into the blending range, a satisfactory shock absorbing effect cannot be obtained. The blending ratio of is preferably blended with 3 to 10 parts by weight of polysilicon sludge and 3 to 5 parts by weight of cement, based on 100 parts by weight of ocher and masato blend or ocher, and the blending ratio of polysilicon sludge and cement is lower than that of the blend. In this case, adequate strength of the pavement cannot be obtained.

In addition, 0.5 to 2 parts by weight of an inorganic coagulant may be used in the ocher mortar composition according to the present invention, and an inorganic coagulant may be used as an inorganic salt by selecting one or more components from calcium chloride, potassium chloride, magnesium chloride, and the like. Do.

And for another object of the present invention, the ocher road paving method using the soil or ocher mortar composition for road pavement according to the present invention is based on the ocher and masato blend or 100 parts by weight of ocher, 3 to 10 parts by weight of polysilicon sludge, cement 3 to 5 parts by weight, guar gum 0.5 to 5 parts by weight of the soil or loess mortar composition according to the invention comprising the uniform mixing by adding water on the surface of the auxiliary base layer is completed and compacted to form a surface layer It characterized in that the loess road paving method consisting of.

The thickness of the surface layer of the road paving soil or loess mortar composition according to the present invention on the surface of the auxiliary base layer is formed in 10cm ~ 20cm thickness range in consideration of the functionality of the sidewalk, walkway, bicycle road and the like.

In addition, 0.5 to 2 parts by weight of an inorganic coagulant may be used in the ocher mortar composition according to the present invention, and an inorganic coagulant may be used as an inorganic salt by selecting one or more components from calcium chloride, sodium chloride, potassium chloride, magnesium chloride, and the like. Do.

The road pavement soil or loess mortar composition according to the present invention as described above by using the waste sludge generated in the polysilicon manufacturing process as an industrial waste as a binder to reduce the amount of cement used to prevent natural damage due to excessive use of cement, As well as the advantage of using waste resources, pavement roads using road pavement soil or ocher mortar composition according to the present invention exhibits a similar buffering property (shock absorbency) to natural soil roads or loess roads by impact absorption effect. Such atmosphere and environmentally friendly features.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the following Examples do not limit the present invention.

≪ Example 1 >

 100 parts by weight of ocher powder in 150 mesh range, 8 parts by weight of finely divided polysilicon sludge powder (6000 cm 2 / g), 5 parts by weight of cement, 1 part by weight of guar gum, 1 part by weight of coagulant (calcium chloride) and water to the mixer Injected and uniformly mixed to prepare ocher mortar.

≪ Example 2 >

 10 parts by weight of finely divided polysilicon sludge powder (6000 cm 2 / g), 5 parts by weight of cement, 2 parts by weight of guar gum, in 100 parts by weight of a mixture of 100 parts of ocher powder and 0.2 mm masato in a weight ratio of 1: 1. Part and water were added to the mixer and uniformly prepared ocher mortar.

Psalm Production

 For the physical property test of ocher mortar according to the present invention, six ointment specimens of 50 mm in diameter and 100 mm in height were made of three ocher mortars of <Example 1> and <Example 2>.

<Test Example 1>

 The compressive strength test was performed on the specimens prepared above, and the results are shown in [Table 1] below.

division Compressive strength ( Kgf / Cm2) How to measure Example 1 18.5 KS  F 2405 Example 2 19.1

<Test Example 2>

 Measure the height of rebound (bound) by dropping the golf ball 10 times at 100 cm height to the specimen prepared in Test Example 1 for the shock absorbency test and elastic resilience test for the loess mortar of Examples 1 and 2 It was. The result (average value) is shown in [Table 2] below with GB coefficient (shock absorbency).

division Shock absorbency GB Coefficient) How to measure Example 1 20
Repulsive Coefficient (%) = (Rebound Height / Initial Height) X100 Example 2 25 asphalt 70-72 concrete 73-75

<Example 3>

 10 parts by weight of finely divided (5000 cm 2 / g) polysilicon sludge powder and 5 parts by weight of 100 parts by weight of a mixture containing ocher powder in the range of 100 mesh, 2 mm masato and 5 mm masato in a ratio of 1: 0.5: 0.5 in a ratioless ratio. 2 parts by weight of guar gum and water were added to the mixer and mixed uniformly to prepare mortar, and evenly laid and compacted with a length of 3m, width of 1m and thickness of 100mm on the substrate prepared for the test to fully cure the road. It was constructed. Visual inspection was good after 28 days of construction and showed a compressive strength of 180kgf / ㎠.

According to the results of <Example 1> to <Example 3>, dirt roads, trails, and bicycle roads paved by the soil or loess mortar composition for pavement according to the present invention appeared to be somewhat higher than the required compressive strength. Moreover, since it shows the moderate absorbency, it shows the effect of comfortable walking etc.

Claims (9)

Ocher and masato blend or ocher mortar mortar composition characterized in that it comprises 100 parts by weight of ocher, 3 to 10 parts by weight of polysilicon sludge, 3 to 5 parts by weight of cement and 1 to 3 parts by weight of guar gum as an impact absorber. . The loess and mortar mortar composition for paving soil or ocher road according to claim 1, wherein the loess and masato blend is blended in a weight ratio of 1: 0.5 to 1. The ocher mortar mortar composition for paving soil or ocher roads according to claim 1 or 2, wherein the ocher is an ocher powder of 100 to 300 mesh, and the masato has an average particle diameter of 0.1 to 5 mm. The soil or ocher road pavement composition of claim 3, further comprising at least one component from calcium chloride, sodium chloride, potassium chloride and magnesium chloride as an inorganic coagulant. The soil or ocher road pavement method according to claim 1, wherein the ocher mortar composition for pavement of soil or ocher road is laid on the surface of the auxiliary base layer on which stationary work is completed for road pavement, and compacted to form a surface layer. The method of claim 5 wherein the ocher and masato blend is characterized in that the loess to masato blend ratio is 1: 0.5 to 1 by weight. The method for paving soil or ocher road according to claim 5 or 6, wherein the ocher is an ocher powder having a mesh size of 100 to 300 mesh, and the masato has an average particle diameter of 0.1 to 5 mm. The method of claim 7, wherein the inorganic coagulant further comprises at least one component from calcium chloride, sodium chloride, potassium chloride and magnesium chloride. 9. The method of claim 8, wherein the surface layer is laid with a thickness of 10 cm to 20 cm.