JPH0716540A - Shape separation apparatus for hydraulic composition and aggregate and shape separation method therefor using this apparatus, shape-separated hydraulic composition and aggregate, hydraulic composition cured member and hydraulic composition cured structure - Google Patents

Abstract

PURPOSE:To separate and recover a hydraulic compsn. or aggregate with a particle size of a specific value or less corresponding to the shape thereof. CONSTITUTION:A truncated cone-shaped rotary body 12 having a trapezoidal cross-sectional shape and a linear inclined surface 12a rotated and, if necessary, vibrated up and down and recovery tanks S1-S9 provided outside the inclined lower peripheral edge 12b of the inclined surface 12a of the rotary body 12 are provided. A hydraulic compsn. or aggregate is allowed to fall on the inclined surface 12a of the rotary body 12 at the inclined upper side position thereof and separated into various shapes by utilizing such a phenomenon that difference is generated in the motion locus by the shape of the hydraulic compsn. or aggregate to be recovered in the recovery tanks S1-S9 corresponding to various shapes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating the shape of a hydraulic composition or aggregate, a method for separating the shape of a hydraulic composition or aggregate, a hydraulic composition or an aggregate having a separated shape, and a hydraulic composition. The present invention relates to a cured product and a hydraulic composition cured product construct.

[0002]

2. Description of the Related Art Generally, when mortar or concrete is prepared using ordinary Portland cement, ordinary Portland cement is mixed with sand and water to mix mortar, and ordinary Portland cement is mixed with sand, gravel and water. Concrete and ready-mixed concrete are produced respectively, but the grain size of ordinary Portland cement, which is a hydraulic composition, and sand and gravel, which are aggregates, are adjusted, but the shape thereof is not considered at all.

However, in such a hydraulic composition or aggregate, the shape and the fluidity are not adjusted because the particle size is simply adjusted and the particle size is adjusted. Therefore, mortar and concrete which are non-uniform, for example, are not improved in their characteristics, for example, fluidity, and further, a hydraulic composition cured product obtained therefrom and a hydraulic composition cured product structure thereof have been conventionally used. The actual situation is that the tensile strength, bending strength and compressive strength remain the same, the fluidity of the hydraulic composition and aggregate is further improved, and the tensile strength of the hardened composition of the hardened composition or the hardened composition of the hardened hydraulic composition is improved. It has been demanded to further improve the bending strength and the compressive strength.

In order to solve such a problem, the inventor of the present application has proposed a method for separating the shape of the hydraulic composition or aggregate by separating and recovering the hydraulic composition or aggregate according to the shape thereof (Japanese Patent Application No. Hei 10 (1999) -135242). No. 5-132230, Japanese Patent Application No. 5-1322
No. 31). In the method for separating the shape of the hydraulic composition or aggregate, the hydraulic composition or aggregate is separated and collected according to the shape using the cylindrical container 1 having a relatively shallow depth as shown in FIG. This cylindrical container 1 has an opening 2 for collecting particles in the center thereof, a spiral partition wall 3 is provided inside the opening 2 as a center, and a radial partition 4 is further provided in the peripheral portion. The particle recovery tanks A to H having the same are arranged. In order to separate and collect the hydraulic composition or aggregate according to its shape using such a cylindrical container 1, the opening 2
The hydraulic composition aggregate or aggregate aggregate is introduced between the inner wall of the partition wall 3 and the partition wall 3 to give vertical vibration to the cylindrical container 1 at a specific amplitude and frequency, and The hydraulic composition or aggregate put into the cylindrical container 1 is moved by imparting a rotational motion such that the center point of the draws a circular orbit on a horizontal plane, depending on the shape of the hydraulic composition or aggregate. Utilizing the fact that the movement locus causes a difference, from among the hydraulic composition aggregate or aggregate aggregate, spherical, lump, polygonal, polygonal pyramidal, columnar, rod-shaped, needle-shaped, plate-shaped, or scale-shaped At least one specific type of hydraulic composition or aggregate has been separated and collected depending on its shape.

[0005]

However, in the conventional method for separating the shape of the hydraulic composition or aggregate, the particle size is 50 μm.
Regarding the hydraulic composition or aggregate exceeding m, the hydraulic composition or aggregate having the above-mentioned specific shape can be separated and recovered depending on its shape from the hydraulic composition aggregate or aggregate. Is 50 μm or less, especially for a very fine hydraulic composition or aggregate having a particle size of 20 μm or less,
Due to the shape, it was difficult to separate and collect. For example, since commercially available ordinary Portland cement has an average particle size of about 20 μm, it is difficult to separate and collect the hydraulic composition or the aggregate according to the shape by the conventional method for separating the shape of the hydraulic composition or the aggregate. Therefore, it is difficult to meet the above demand.

The present invention has been made in view of the above circumstances, and an object thereof is that even a hydraulic composition or aggregate having a particle size of 50 μm or less can be separated and recovered depending on its shape. Yes, and for aggregate, particle size 2
If it is 0 μm or more, a shape separating device for a hydraulic composition or aggregate capable of significantly improving the shape separation efficiency, a method for separating the shape of the hydraulic composition or aggregate, and a high flow of the hydraulic composition or aggregate. It is possible to characterize, and to increase the tensile strength of the hydraulic composition cured product and the hydraulic composition cured product construct,
It is intended to enable high bending strength and high compression strength.

[0007]

In the shape separating device for hydraulic compositions or aggregates according to the present invention, in particular, the cross-sectional shape is trapezoidal, triangular, semicircular, substantially semicircular, inverted bowl-shaped, bilaterally symmetrical stepped. Any one of a truncated cone type, an umbrella type, a conical type, an inverted bowl type, and a convex type rotating body that has a linear and / or curved inclined surface and that rotates and vertically vibrates as necessary. It consists of a recovery tank provided on the outer periphery of the inclined lower side of the inclined surface of the rotating body, dropping the hydraulic composition aggregate or aggregate aggregate to the position of the inclined upper side of the inclined surface of the rotating body,
Utilizing the fact that a difference in movement locus occurs depending on the shape of the hydraulic composition or aggregate, the hydraulic composition or aggregate is separated into various shapes from the hydraulic composition aggregate or aggregate aggregate, The means for solving the above problems is to collect the shape-separated hydraulic composition or aggregate into the recovery tank according to the shape.

Further, in the method for determining the shape of the hydraulic composition or aggregate of the present invention, in particular, the shape separating device for the hydraulic composition or aggregate is used, and the rotating body of the shape separating device is rotated and if necessary. By vibrating vertically, dropping the hydraulic composition aggregate or aggregate aggregate to a position on the upper side of the inclined surface of the rotating body, and utilizing the fact that there is a difference in the movement trajectory depending on the shape of the hydraulic composition or aggregate Then, the hydraulic composition or aggregate is shape-separated into various shapes from the hydraulic composition aggregate or aggregate aggregate, and the shape-separated hydraulic composition or aggregate is formed according to the shape of the rotating body. The recovery tank provided outside the peripheral edge of the inclined surface on the lower side of the slope was used as a means for solving the above problems. Further, in the method for determining the shape of the hydraulic composition or aggregate, in particular, the shape-separated hydraulic composition or aggregate contains at least one of spherical, lumpy, polygonal, and polygonal pyramid shapes, or more High compressive strength, including a lot
Having at least one characteristic of high fluidity was taken as a means for solving the above problems. Further, in the method for determining the shape of the hydraulic composition or aggregate, in particular, the shape-separated hydraulic composition or aggregate includes at least one of columnar shape, rod shape, needle shape, plate shape, and scale shape, or Having at least one of high tensile strength and high flexural strength, which is contained in a larger amount, is a means for solving the above problems.

Further, the shape-separated hydraulic composition or aggregate of the present invention is, in particular, separated and recovered by the method of separating the shape of the hydraulic composition or aggregate, which is the means for solving the above problems.

In the ready-mixed concrete of the present invention, in particular, the shape-separated hydraulic composition is cement.
This hydraulic composition, an aggregate, water and optionally a mixture of a water reducing agent, or a mixture of the shape-separated aggregate, cement, water and optionally a water reducing agent, or the above shape The separated hydraulic composition is cement, and this hydraulic composition, a mixture of the shape-separated aggregate, water, and, if necessary, a water-reducing agent are the means for solving the above problems. In the hydraulic composition cured product of the present invention, in particular, a mixture of the shape-separated hydraulic composition, aggregate, water and optionally a water reducing agent, or the shape-separated aggregate and hydraulic composition. A mixture of a substance and water and a water reducing agent as necessary, or a mixture of the shape-separated hydraulic composition and the shape-separated aggregate and water and optionally a water reducing agent as described above It was used as a solution to the problem.

Further, in the hydraulic composition cured product structure of the present invention, in particular, the above hydraulic composition cured product is constructed in a predetermined structure as a means for solving the above problems.

The expression "more" here means
In the case of a hydraulic composition or aggregate having at least one characteristic of high compressive strength and high fluidity, the total amount of at least one particle among spherical, lumpy, polygonal, and polygonal pyramidal shapes other than these specific shapes It means that it is desirable that the total amount of at least one particle in the shape is more than the total amount, and in the case of a hydraulic composition or an aggregate having at least one characteristic of high tensile strength and high bending strength, a plate shape ,
This means that the total amount of at least one of the acicular, columnar, rod-shaped, and scaly particles is preferably larger than the total amount of at least one particle of a shape other than these specific shapes. Further, the amount (and ratio) of at least one particle of the specific shape in the hydraulic composition or aggregate is a known amount of each shape particle in a known commercially available hydraulic composition or aggregate. (And ratio) more than that. Further, in the hydraulic composition or aggregate collected by the method for separating the shape of the hydraulic composition or aggregate, those having a lump shape, a polygonal shape, or a polygonal pyramid shape preferably have a shape close to a spherical shape or a cubic shape. .

In the case of cement, for example, in the case of cement, the hydraulic composition cured product or the hydraulic composition cured product of the present invention is a cement mortar cured product, a fresh cement concrete cured product, a cement concrete cured product, a cement mortar cured product construct, Not only the hardened cement concrete structure and the hardened cement concrete structure are included, but also other hydraulic compositions are included.

The present invention will be described in detail below. First, the shape separating device for the hydraulic composition or aggregate of the present invention will be described. FIG. 1 shows an example of a shape separating device for a hydraulic composition or an aggregate of the present invention. Reference numeral 10 in FIG. 1 denotes a shape separating device for a hydraulic composition or an aggregate (hereinafter abbreviated as a shape separating device. Yes.) This shape separation device 10 is
As shown in FIG. 1, the cross-sectional shape is trapezoidal, has a linear inclined surface 12a, and is a truncated cone type rotating body 12 that rotates and vertically vibrates as necessary, and an inclined surface 12a of this rotating body 12.
Of the collecting tanks S1, S2, S3, S4, S5, S6, S7, S provided outside the peripheral edge 12b on the lower side of
8, S9 ..., The hydraulic composition aggregate or aggregate aggregate is dropped to a position on the upper side of the inclined surface 12a of the rotating body 12, and the movement trajectory is determined by the shape of the hydraulic composition or aggregate. Utilizing the fact that a difference occurs, the hydraulic composition or aggregate is shape-separated into various shapes from the hydraulic composition aggregate or aggregate, and the shape-separated hydraulic composition or aggregate is used. Depending on its shape, the recovery tanks S1, S2, S3,
S4, S5, S6, S7, S8, S9 ... Above the inclined upper side of the inclined surface 12a of the rotating body 12 of the shape separation device 10, a mechanism for dropping the hydraulic composition aggregate or aggregate aggregate to a position above the inclined upper side of the inclined surface 12a of the rotary body 12 is provided. As an example, a hopper 13 is provided. Further, the shape separation device 10 is configured so that a rotating mechanism 12 can be caused to rotate about the central axis G and a vertical vibration can be given if necessary by a motion mechanism (not shown).

The rotating body 12 is formed by rolling various shapes of hydraulic compositions or aggregates which form aggregates of hydraulic composition particles or aggregates that have fallen from the hopper 13 on the inclined surface 12a. For separating hydraulic composition or aggregate according to its shape, rubber, plastic, concrete, cured mortar, cloth, metal,
It is made of alloy or the like. Inclination angle θ of the inclined surface 12a
Is the shape of the hydraulic composition or aggregate forming the hydraulic composition particle aggregate or aggregate aggregate to be introduced into the hopper 13, the material of the rotating body 12, the strip-shaped flat surface formed on the inclined surface 12a described later. It is appropriately selected depending on the roughness of the portion and the rough surface to be formed. The rotation speed of the rotating body 12 is the same as that of the hopper 1.
It is properly selected depending on the shape of the hydraulic composition or aggregate forming the aggregate of the hydraulic composition particles or the aggregate of the aggregate, the material of the rotating body 12, and the inclination angle θ.

On the surface of the inclined surface 12a of the rotating body 12,
It is preferable that at least one strip-shaped surface smooth portion is formed. The material for the smooth surface is gold,
Metals or alloys such as aluminum, silver, copper, stainless steel, and Shinchu are used. This is because when such a strip-shaped surface smooth portion is formed on at least a part or all of the surface of the inclined surface 12a, the hydraulic composition or the aggregate can be efficiently separated according to its shape.

Further, it is preferable that the surface of the inclined surface 12a of the rotating body 12 is formed with at least one roughness.
That the surface of the inclined surface 12a of the rotating body 12 is formed with at least one roughness means that one or more rough surfaces having different roughness are formed on the surface of the inclined surface 12a. As a material of such a rough surface portion, asphalt, rubber, concrete, hardened mortar, cloth, metal, alloy or the like is used. This is because if the surface of the inclined surface 12a is formed to have at least one roughness, it is possible to improve the shape separation efficiency of separating the hydraulic composition or aggregate according to the shape thereof. Further, it is preferable that at least one band-shaped portion having a roughness is formed on the surface of the inclined surface 12a.
As a material for such a strip-shaped portion, asphalt, rubber, concrete, mortar hardened body, cloth, metal, alloy or the like is used. This is because when at least one band-shaped portion having a roughness is formed on the surface of the inclined surface 12a, it is possible to improve the shape separation efficiency of separating the hydraulic composition or aggregate according to the shape thereof.

In FIG. 2, a strip-shaped surface smooth portion 14a is formed on the upper side of the inclined surface 12a of the rotating body 12, and a strip portion 14b having a high roughness is formed on the upper side of the inclined surface of the inclined surface 12a. It shows an example in which a strip portion 14c having a low roughness is formed between a smooth portion 14a and a strip portion 14b having a high roughness.

Further, a partition wall 15 is provided on the surface of the inclined surface 12a of the rotating body 12 as shown in FIG. 3 in order to improve the shape separation efficiency for separating the hydraulic composition or aggregate according to its shape. It is preferable that at least one strip-shaped surface smooth portion is formed on the surface of the partition wall 15. Further, it is preferable that the surface of the partition wall 15 is formed with at least one roughness. The partition wall 15 may have at least one wall.

The recovery tanks S1 to S9 ... Are provided outside the inclined lower edge 12b of the rotating body 12, that is, apart from the rotating body 12, and the rotating body 1 is provided.
It does not rotate or vibrate with the rotation or vibration of 2. In the present invention, the number of recovery tanks is not limited to this and only one example is shown above. In the hopper 13,
A charging port 13a for charging the hydraulic composition particle aggregate or aggregate aggregate into the hopper 13, and a drop for dropping the aggregate to a position above the inclined surface 12a of the rotating body 12 A mouth 13b is formed. here,
Although the example in which the hopper 13 is disposed above the upper side of the inclined surface 12a has been described, the present invention is not limited to this.

The shape of the rotating body 12 of the shape separation device 10 is, in addition to the truncated cone shape described above, an umbrella shape, a conical shape, an inverted bowl shape,
It may be either convex, and the inclined surface 1 of the rotating body 12
2a has a linear shape and / or a curved shape.
The cross-sectional shape of is one of a triangular shape, a semicircular shape, a substantially semicircular shape, an inverted bowl shape, and a bilaterally symmetrical step shape. FIG. 4 is a schematic configuration diagram showing an example of a shape separation device in which the rotating body 12 is an umbrella type or a conical type, and the rotating body 12 has a triangular cross-sectional shape. In FIG. 5, the rotating body 12 is an inverted bowl type, and the rotating body 1
It is a schematic block diagram which showed the example of the shape separation device whose cross-sectional shape of 2 is a semicircle or a substantially semicircle. FIG. 6 shows the rotating body 12.
Is a reverse bowl type, and is a schematic configuration diagram showing an example of a shape separation device in which the cross-sectional shape of the rotating body 12 is a reverse bowl shape. Figure 7
[Fig. 3] is a schematic configuration diagram showing an example of a shape separation device in which the rotating body 12 is convex and the sectional shape of the rotating body 12 is bilaterally symmetric stepwise. The radius of curvature r of the curved portion of the inclined surface 12a of the shape separation device 10 shown in FIG. 5 or 6 is set such that the hydraulic composition or bone forming the hydraulic composition particle aggregate or aggregate aggregate to be introduced into the hopper 13. The shape is appropriately selected depending on the shape of the material, the material of the rotating body 12, the strip-shaped surface smooth portion formed on the inclined surface 12a and the roughness of the rough surface formed.

In the present invention, the hydraulic composition means
Cement, cement clinker, gypsum, blast furnace slag, converter slag, fly ash, silica stone, silica fume,
One or more selected from soil improver, ground improver, quick lime, gypsum, expansive cement, destructive material, expansive material, lime, etc. In addition, concrete examples of the cement include ordinary Portland cement, blast furnace cement, fly ash cement, super fast-setting cement, super fast-setting cement, fast-setting cement, fast setting cement, low heat-generating cement, expansive cement, and oil well. Cement, seawater resistant cement, silica cement, acid resistant cement, AL
C cement etc. are mentioned. Further, specifically as cement clinker, clinker for ordinary Portland cement, clinker for blast furnace cement, clinker for ultra-fast cement, ultra-rapid cement clinker, clinker for fast-strength cement, low-pyrogenic clinker, clinker for fat cement, oil. Examples include clinker for well cement, seawater-resistant cement clinker, heat-resistant cement clinker, and cement clinker for ALC.

In the present invention, aggregate means coarse aggregate,
It is selected from at least one of fine aggregate, blast furnace slag, converter slag, fly ash, limestone, silica stone, silica fume, and artificial lightweight aggregate. Specific examples of the coarse aggregate include natural gravel such as river gravel, sea gravel, and mountain gravel, and artificial gravel made by quarrying. Specific examples of the fine aggregate include natural sand such as river sand, sea sand, and mountain sand, and sand produced by quarrying. As the blast furnace slag, converter slag, fly ash, silica stone, silica fume, and artificial lightweight aggregate, those made of commonly known materials can be mentioned.

Next, an example of the method for separating the shape of the hydraulic composition or aggregate of the present invention will be described. First, FIGS. 1 to 7
Using any of the shape separation devices 10 shown in FIG. 1, the rotating body 12 of the shape separation device 10 is rotated in one direction and vertically vibrated if necessary. Then, the hydraulic composition aggregate or aggregate 20 composed of hydraulic compositions or aggregates having various shapes is put into the hopper 13 through the input port 13a, and the aggregate 20 is rotated through the drop port 13b. On the surface of the inclined surface 12a of the body 12, the rotor 12 is dropped to a position on the upper side of the inclined surface 12a of the body 12 and rolled on the surface of the inclined surface 12a to be separated into various shapes. In this way, the aggregate 20 rolls on the surface of the inclined surface 12a, moves to the lower peripheral edge 12b of the inclined surface, and then falls out of the inclined surface 12a. The shape of the hydraulic composition or aggregate causes a difference in the movement trajectory depending on the shape. For example, as shown in FIG. 8, a spherical hydraulic composition or aggregate having a small frictional resistance with the surface of the inclined surface 12a is traced substantially straight from the drop point on the surface of the inclined surface 12a toward the lower end of the inclination. L1 is drawn, the shapes are separated, and the L1 is dropped, and then dropped into a recovery tank S1 provided outside the peripheral edge 12b on the lower inclined side of the inclined surface 12a, and is stored therein. After that, a lumpy hydraulic composition or aggregate having a frictional resistance with the surface of the inclined surface 12a larger than that of the spherical hydraulic composition or aggregate is separated into shapes along a locus L2 and falls, and falls into the recovery tank S2. And then accommodated. After that, a hydraulic composition or aggregate in the order of polygonal shape, polygonal pyramid, plate shape, rod shape, columnar shape, needle shape, scaly shape or a hydraulic composition or bone in which frictional resistance with the surface of the inclined surface 12a increases. Trajectories L3, L4, L in the order of materials
5, L6, L7, L8, and L9 are drawn, and the shapes are separated and dropped, and then dropped into the collection tanks S3, S4, S5, S6, S7, S8, and S9, and stored. In the present invention, the order is not limited to this and only one example is shown above.

According to the method for separating the shape of the hydraulic composition or aggregate, the hydraulic composition or aggregate has a spherical shape, a plate shape, a lump shape, a needle shape, a column shape, a rod shape, a polygonal shape, a polygonal pyramid shape,
It is separated and recovered in at least one of the scale-like shapes, but in order that the hydraulic composition or aggregate has at least one of the characteristics of high compressive strength and high fluidity, spherical, massive, polygonal shape It is only necessary to include particles having at least one shape out of polygonal pyramids or to include more particles having these shapes. Further, in order that the hydraulic composition or aggregate has at least one characteristic of high tensile strength and high bending strength, at least one of plate-like, needle-like, columnar, rod-like, and scaly is at least The particles of one kind of shape may be contained, or the particles of these shapes may be contained more.

According to the method for separating the shape of the hydraulic composition or aggregate, the particle size is 50 μm or less, and particularly the particle size is 20 μm.
For each specific shape even the following hydraulic composition or aggregate,
That is, it is possible to easily separate and collect each of various shapes such as spherical shape, plate shape, lump shape, needle shape, column shape, rod shape, polygonal shape, polygonal pyramid shape, and scale shape. Further, regarding the aggregate, when the particle size is 20 μm or more according to the present invention, the shape separation efficiency for each of the various shapes described above is significantly improved and the aggregate can be easily separated and collected. Therefore, by including and adding at least one hydraulic composition and / or aggregate out of spherical, lump, polygonal and polygonal pyramidal shapes obtained by the above-mentioned shape separation method, A mixture of the aggregate obtained by the method, the hydraulic composition, water and optionally a water reducing agent or fresh concrete, of the aggregate obtained by the shape separation method, the hydraulic composition and water and optionally a water reducing agent In a mixture or fresh concrete, or a mixture or fresh concrete of an aggregate, a hydraulic composition, water and optionally a water reducing agent obtained by the above-mentioned shape separation method,
When the hydraulic composition is, for example, cement, it is possible to obtain cement mortar or cement concrete (including fresh cement concrete) having at least one characteristic of high compressive strength and high fluidity. Furthermore, when cement mortar or cement concrete (including fresh cement concrete) having at least one of these high compressive strength and high fluidity is used to form a hardened product, at least one of high compressive strength is obtained. It is possible to obtain a cement mortar hardened product, a cement concrete hardened product (including a green concrete hardened product), a cement mortar hardened product structure and a cement concrete hardened product structure (a fresh concrete hardened product structure) that have two characteristics.

By including at least one of the columnar, rod-shaped, needle-shaped, plate-shaped, and scale-shaped hydraulic compositions and / or aggregates obtained by the above-described shape separation method, and by adding more. , A mixture of aggregate and hydraulic composition obtained by the above shape separation method, water and optionally a water reducing agent or fresh concrete, aggregate obtained by the above shape separation method, hydraulic composition and water and if necessary In a mixture with a water reducing agent or ready-mixed concrete, or a mixture of aggregate and hydraulic composition obtained by the above-mentioned shape separation method, water and optionally a water reducing agent, or ready-mixed concrete, where the hydraulic composition is, for example, cement , High tensile strength,
It is possible to obtain cement mortar or cement concrete (including fresh cement concrete) having at least one characteristic of high bending strength. Furthermore, when cement mortar or cement concrete (including fresh cement concrete) having at least one of these high tensile strength and high bending strength is used and a hardened body thereof is formed, at least one of high compressive strength is obtained. It is possible to obtain a cement mortar hardened product, a cement concrete hardened product (including a green concrete hardened product) and a cement mortar hardened product structure or a cement concrete hardened product structure (including a fresh concrete hardened product structure) that have two characteristics. It is possible to improve the quality of the hydraulic composition or the material as an aggregate, and to improve the handling property and fluidity of the particle group.

In the present invention, the hardened cement mortar, hardened cement concrete and hardened fresh cement concrete include all known hardened cement mortar and hardened cement concrete widely used in the field of civil engineering and construction. Raw cement concrete hardened body)
And U-shaped grooves, secondary cement concrete products, various blocks, piles, prestressed concrete, various concrete building materials, and concrete hardened materials for civil engineering. Further, the cement mortar hardened body structure, the cement concrete hardened body structure is all structures made in the civil engineering and construction industry, for example, low, middle and high-rise buildings, condominiums, single-family houses, wave-dissipating blocks, wave-proof structures, River or sea revetment or embankment, bridge, road, railway, airport, runway, factory, school, public hall, gymnasium, dome, library,
Museums, art galleries, baseball fields, nuclear power plants, hydroelectric power plants,
Includes all structures and structures made of hardened concrete such as known concrete structures such as thermal power plants, dams and tunnels, secondary concrete products, ALC plates,
Includes fume tubes, piles, concrete panels, in-situ ground improvement piles, ground improvement piles, continuous underground walls and all other known secondary cement concrete products.

Further, in the method of separating the shape of the hydraulic composition or aggregate of the present invention, vertical vibration may be appropriately applied to the rotating body in order to improve shape separation efficiency and shape separation efficiency. Further, in the present invention, when the hydraulic composition or aggregate is deposited on the inclined surface of the rotating body by long-term use, the rotation start end direction and the opposite direction and A scraper that moves freely in the direction of the upper side of the slope and the direction of the lower side of the slope may be installed.

[0030]

EXAMPLES The present invention will now be described in more detail with reference to examples, but the present invention is not limited to the following examples. Example 1 First, a shape separation device 10 similar to that shown in FIG. 1 was prepared. The inclined surface 1 of the rotating body 12 of the shape separation device 10
The inclination angle θ of 2a was 30 °. Then, the rotating body 12 of the shape separation device 10 is rotated in one direction (rotation speed 60
Rotation / minute, rotation speed 1 m / minute). Then ordinary Portland cement with various shapes (average particle size 20μ
m) is introduced into the hopper 13 through the introduction port 13a, and the ordinary Portland cement is introduced through the fall port 13b.
The inclined surface 12 of the rotating body 12 on the surface of the inclined surface 12a of
It was dropped to a position on the upper side of the inclination of a, rolled on the surface of the inclined surface 12a, and separated into various shapes. In this way, the ordinary Portland cement rolls on the surface of the inclined surface 12a, moves to the lower peripheral edge 12b of the inclined surface, and then the inclined surface 1
As shown in FIG. 8, the spherical ordinary Portland cement that falls outside 2a and has a small frictional resistance with the surface of the inclined surface 12a is approximately straight toward the lower end of the inclined surface from the drop point on the surface of the inclined surface 12a. The locus L1 was drawn and separated, and dropped, and dropped into a recovery tank S1 provided outside the peripheral edge 12b of the inclined surface 12a on the lower end side of the inclined surface 12a, and was stored therein. After that, the lumpy ordinary Portland cement, which has a larger frictional resistance with the surface of the inclined surface 12a than the spherical ordinary Portland cement, is separated by the shape of the locus L2 and falls, and the recovery tank S2
It fell and was contained. After that, ordinary Portland cement having a shape in which the frictional resistance with the surface of the inclined surface 12a becomes large, a polygonal shape, a polygonal pyramid shape, a plate shape, a rod shape, a column shape, a needle shape,
In the order of scale-like ordinary Portland cement, traces L3, L4, L5, L6, L7, L8, and L9 are drawn, respectively, and the shapes are separated and dropped.
It fell into S9 and was stored.

In order to improve the efficiency of shape separation, a strip-shaped surface smooth portion 14a is formed on the upper side of the inclined surface 12a of the rotating body 12 as shown in FIG.
Using the shape separation device 10 in which the strip-shaped portion 14b having a large roughness is formed on the upper side of the inclined surface of the surface a and the strip-shaped portion 14c having a small roughness is formed between the surface smooth portion 14a and the rough surface 14b. When the ordinary Portland cement was shape-separated by its shape in the same manner as the separation, the shape separation efficiency was significantly improved.

The ordinary Portland cements thus separated in shape are blended in the following proportions for each shape,
The ordinary Portland cement with each characteristic was obtained. In addition to the above composition, control of the rotational speed and rotational speed of the rotating body 12, the inclination angle θ of the inclined surface 12a of the rotating body 12, the roughness of the rough surface formed on the inclined surface 12a, the formation position, and the number of formations. The shape separation conditions were controlled so as to obtain the following proportions of the respective shape particles by controlling the above, the material of the surface smooth portion formed on the inclined surface 12a, the formation position, the number of formation, and the like. In this way, by utilizing the rotational speed of the rotating body 12 and the difference in roughness at the positions between the upper and lower inclined positions of the inclined surface 12a and the upper and lower inclined portions, a large amount of roughness can be obtained. The shape-separated hydraulic composition was obtained and mass production became possible.

(1) High compressive strength and high fluidity Ordinary Portland cement Spherical Portland cement particles 30% by weight Hexagonal Portland cement particles 30% by weight Aggregate Portland cement particles 10% by weight Portland cement particles of other shapes (shapes are indistinguishable Particles) 30% by weight (2) High tensile strength / high bending strength Normal Portland cement Plate-shaped Portland cement particles 30% by weight Columnar Portland cement particles 20% by weight Needle-shaped Portland cement particles 10% by weight Rod-shaped Portland cement particles 10% by weight Other Shaped Portland cement particles (particles whose shapes cannot be distinguished) 30% by weight (3) High compressive strength / high tensile strength / high bending strength / high fluidity Ordinary Portland cement spherical spherical Portland cement particles 20% by weight Hexagonal shape Pol Land cement particles 20% by weight Agglomerate Portland cement particles 5% by weight Plate portland cement particles 20% by weight Columnar portland cement particles 10% by weight Needle-shaped portland cement particles 5% by weight Portland cement particles of other shapes (particles whose shapes are indistinguishable) 20% by weight

Example 2 (1) to (1) obtained in Example 1
In addition to each Portland cement of (3), the conventional commercially available ordinary Portland cement (4) was mixed with the concrete shown in Table 1 according to JIS, and the slump value (fluidity) and compression strength (JIS A 110
8), tensile strength and bending strength were tested. The obtained results are shown in Tables 2-9. Table 10 shows the physical properties of the commercially available fine aggregate and the commercially available coarse aggregate used in the blending.

(4) Conventional commercially available ordinary Portland cement Spherical Portland cement particles 5% by weight Aggregate Portland cement particles 10% by weight Hexagonal Portland cement particles 10% by weight Plate Portland cement particles 10% by weight Rod Portland cement particles 5% by weight Others Portland cement particles in the shape of (particles whose shapes cannot be distinguished) 60% by weight

[0036]

[Table 1]

[0037]

[Table 2]

[0038]

[Table 3]

[0039]

[Table 4]

[0040]

[Table 5]

[0041]

[Table 6]

[0042]

[Table 7]

[0043]

[Table 8]

[0044]

[Table 9]

[0045]

[Table 10]

From the results shown in Tables 2 to 9, the fluidity (measured slump value) and the fluidity (measured slump value) of the products of Examples 1 to 3 were respectively higher than those of the conventional product (4). It was confirmed that it was excellent in compressive strength, tensile strength and bending strength, or all of these.

(Example 3)

Spherical, lump, polygonal, polygonal pyramidal, rod-shaped, needle-shaped, plate-shaped, by the same shape separation method as in Example 1 except that coarse aggregate (crushed stone, produced by Iwase) was put into the hopper 13.
The coarse aggregate having a specific shape such as a columnar shape or a scale shape was separated and collected.
Further, similar to the above-described first embodiment, the rotational speed of the rotating body 12 and the difference in roughness between the inclined upper position, the inclined lower position, the inclined upper portion, and the inclined lower portion of the inclined surface 12a. By using, a large amount of shape-separated coarse aggregate was obtained and mass production became possible. The coarse aggregate thus separated and collected was blended in the following proportions for each shape to obtain coarse aggregate having each characteristic.

(5) High compressive strength and high fluidity coarse aggregate 30% by weight spherical gravel 30% by weight hexagonal gravel 30% by weight massive gravel 10% by weight Other gravel (particles whose shape cannot be classified) 30% by weight (6) High tensile strength / high bending strength Coarse aggregate 30% by weight Plate gravel 30% by weight Columnar gravel 20% by weight Needle gravel 10% by weight Rod gravel 10% by weight Other shapes gravel (particles whose shape cannot be classified) 30% by weight (7) High compressive strength, high tensile strength, high bending strength, high fluidity Aggregate Spherical gravel 20% by weight Hexagonal gravel 20% by weight Aggregate gravel 5% by weight Plate gravel 20% by weight Columnar gravel 10% by weight Needle gravel 5% by weight 20% by weight of gravel in other shapes (particles whose shape cannot be classified)

(Example 4) (5) obtained in Example 3
In addition to the coarse aggregates of (7), the conventional commercially available coarse aggregates (8) having physical properties shown in Table 10 before shape separation and recovery are respectively converted to conventional commercially available ordinary Portland cement (4) according to JIS. In addition, water was added and the concrete composition shown in Table 1 was performed. The slump value (fluidity), compressive strength (JIS A 1108), tensile strength, and
A bending strength test was conducted. The obtained results are shown in Table 11 to Table 1.
8 shows. The physical properties of the commercially available fine aggregate used in the compounding are also shown in Table 10. (8) Conventional commercial coarse aggregate 5% by weight Spherical gravel 5% by weight Agglomerate gravel 10% by weight Hexagonal gravel 10% by weight Plate gravel 10% by weight Rod gravel 5% by weight Other shapes gravel (shape cannot be classified) 60% by weight %

[0051]

[Table 11]

[0052]

[Table 12]

[0053]

[Table 13]

[0054]

[Table 14]

[0055]

[Table 15]

[0056]

[Table 16]

[0057]

[Table 17]

[0058]

[Table 18]

From the results shown in Tables 11 to 18, the blends of the coarse aggregates of the products (5) to (7) of the present example are more flowable than the blends of the conventional commercially available coarse aggregate (8). It was confirmed that the material has excellent properties (actual slump) and compression strength, or tensile strength and bending strength, or all of these.

(Embodiment 5) A spherical shape, a lump shape, a polygonal shape, a polygonal pyramid shape, a rod shape, etc. were obtained by the same shape separation method as in Example 1 except that fine aggregate (Kawasuna, Kinugawa) was put into the hopper 13.
Fine aggregates having a specific shape such as needles, plates, columns, and scales were separated and collected. Further, in the same manner as in the above-described first embodiment, the rotating body 1
2 and the difference in roughness between the inclined upper side position and the inclined lower side position of the inclined surface 12a, and the position between the inclined upper side portion and the inclined lower side portion, a large number of shape-separated fine lines are formed. Aggregate was obtained and mass production became possible. The fine aggregates thus separated and collected were blended in the following proportions for each shape to obtain fine aggregates having respective characteristics. (9) High compressive strength / high fluidity fine aggregate Spherical sand 30% by weight Hexagonal sand 30% by weight Agglomerate sand 10% by weight Sand of other shapes (particles whose shape cannot be classified) 30% by weight (10) High tensile strength・ High bending strength Fine aggregate 30% by weight Plate sand 20% by weight Columnar sand 20% by weight Needle sand 10% by weight Rod sand 10% by weight Other shapes of sand (particles whose shape cannot be classified) 30% by weight (11) High compressive strength・ High tensile strength, high bending strength, and high fluidity fine aggregates Spherical sand 20% by weight Hexagonal sand 20% by weight Aggregate sand 5% by weight Plate sand 20% by weight Columnar sand 10% by weight Needle sand 5% by weight Other 20% by weight of shaped sand (particles whose shape cannot be classified)

Example 6 Example 5 Obtained (9)-
In addition to each fine aggregate of (11), a conventional commercially available fine aggregate (12) having a physical property shown in Table 10 before shape separation and recovery is converted into a conventional commercially available Portland cement (4) according to JIS. Then, water was added and the concrete mix shown in Table 1 was performed. The slump value (fluidity), compressive strength (JIS A 1108), tensile strength, and bending strength of the obtained cured product were tested. The obtained results are shown in Table 19-
It is shown in Table 26. The physical properties of the commercially available coarse aggregate used in the formulation are also shown in Table 10. (12) Conventional commercially available fine aggregates Spherical sand 5% by weight Agglomerate sand 10% by weight Hexagonal sand 10% by weight Plate sand 10% by weight Rod sand 5% by weight Sand of other shapes (particles whose shape cannot be classified) 60% by weight %

[0062]

[Table 19]

[0063]

[Table 20]

[0064]

[Table 21]

[0065]

[Table 22]

[0066]

[Table 23]

[0067]

[Table 24]

[0068]

[Table 25]

[0069]

[Table 26]

From the results shown in Tables 19 to 26, the fine aggregates of the products (9) to (11) of this example were mixed with each other as compared with the conventional fine aggregates (12) on the market. It was confirmed that the material has excellent properties (actual slump) and compression strength, or tensile strength and bending strength, or all of these.

[0071]

As described above, according to the hydraulic composition or aggregate shape separating apparatus and shape separating method of the present invention, a hydraulic composition having a particle size of 50 μm or less, particularly 20 μm or less, or Even aggregates can be easily separated and collected for each specific shape, that is, for each of various shapes such as spherical shape, plate shape, lump shape, needle shape, columnar shape, rod shape, polygonal shape, polygonal pyramid shape, and scale shape. Further, regarding the aggregate, when the particle size is 20 μm or more according to the present invention, the shape separation efficiency for each of the various shapes described above is significantly improved and the aggregate can be easily separated and collected.
Further, the shape separation device of the hydraulic composition or aggregate is a rotating body system having a difference in the roughness of the inclined surface, and by using this to separate the hydraulic composition or aggregate into a shape of extremely various shapes. Mass separation of shape separation is possible and the separation efficiency is further improved. In addition, even in the case of extremely fine hydraulic composition, for example cement with an average particle size of 20 μm, shape separation is possible. For aggregate, 20 μm or more Even in the case of large particles, the shape separation efficiency is significantly improved. Therefore, it contains at least one hydraulic composition and / or aggregate of spherical, lump, polygonal and polygonal pyramidal shapes obtained by the method for separating the shape of the hydraulic composition or aggregate of the present invention, and By including more, aggregate or hydraulic composition obtained by the shape separation method, a mixture of water and optionally a water reducing agent or fresh concrete, aggregate and hydraulic composition obtained by the shape separation method Mixture of material, water and water reducing agent if necessary, or fresh concrete,
Or in the mixture or aggregate of the aggregate, the hydraulic composition, water and optionally a water reducing agent obtained by the above shape separation method, when the hydraulic composition is, for example, cement, high compressive strength and high fluidity Cement mortar or cement concrete (including green cement concrete) having at least one of these properties can be obtained.
Furthermore, using cement mortar or cement concrete (including fresh cement concrete) having at least one of these high compressive strength and high fluidity,
When the hardened body is formed, a hardened cement mortar, a hardened body of cement concrete (including a hardened body of fresh concrete), and a hardened body of hardened cement mortar, which have at least one characteristic of high fluidity and high compressive strength. It is also possible to obtain a cement concrete hardened body structure (including a fresh concrete hardened body structure).

Further, at least one hydraulic composition and / or aggregate of columnar shape, rod shape, needle shape, plate shape, and scale shape obtained by the method for separating the shape of the hydraulic composition or aggregate of the present invention is used. A mixture of the aggregate and the hydraulic composition obtained by the above-mentioned shape separation method, water and optionally a water reducing agent or fresh concrete by including and by including more, the aggregate obtained by the above-mentioned shape separation method In a mixture or fresh concrete of a mixture of a hydraulic composition and water and optionally a water reducing agent or fresh concrete, or a mixture of an aggregate, a hydraulic composition, water and optionally a water reducing agent obtained by the above shape separation method, When the hydraulic composition is cement, for example, cement mortar or cement concrete having at least one of high tensile strength and high bending strength (including Cement concrete) can be obtained. In addition, when cement mortar or cement concrete (including fresh cement concrete) having at least one of these high tensile strength and high bending strength is used to form a hardened product, high tensile strength and high bending strength are obtained. Cement mortar hardened product, cement concrete hardened product (including green concrete hardened product), cement mortar hardened product structure and cement concrete hardened product structure (green concrete hardened product structure) having at least one of the properties be able to. Therefore, according to the present invention, the handling property and fluidity of the quality-improving particle group of the hydraulic composition or the material as the aggregate can be improved. Further, a hydraulic composition cured product and a hydraulic composition cured product construct using the shape-separated hydraulic composition and / or aggregate of the present invention have high fluidity, high compression strength, and high tensile strength. Since it has at least one of the properties of high hardness and high bending strength, the cured product and the cured product construct can have a reduced thickness and a reduced weight. Reduction,
Saving energy by reducing usage, reducing transportation costs,
Power and resources can be saved, and the applications can be expanded significantly.

[Brief description of drawings]

FIG. 1 is a plan view (A) showing an example of a shape separating device for a hydraulic composition or an aggregate of the present invention, and (B) a cross-sectional view as seen in the direction of arrows I-I.

FIG. 2 shows an example in which a smooth surface portion is formed on the inclined surface of the rotating body of the shape separating device for the hydraulic composition or the aggregate shown in FIG. 1, and a strip portion having different roughness is formed on the inclined surface. FIG.

FIG. 3 is a cross-sectional view showing another example of the shape separating device for the hydraulic composition or aggregate of the present invention.

FIG. 4 is a cross-sectional view showing another example of the hydraulic composition or aggregate shape separating device of the present invention.

FIG. 5 is a cross-sectional view showing another example of the hydraulic composition or aggregate shape separation device of the present invention.

FIG. 6 is a cross-sectional view showing another example of the hydraulic composition or aggregate shape separating device of the present invention.

FIG. 7 is a cross-sectional view showing another example of the hydraulic composition or aggregate shape separating device of the present invention.

FIG. 8 is a diagram for explaining a method for separating the shape of the hydraulic composition or aggregate of the present invention.

FIG. 9 is a view for explaining a conventional hydraulic composition or aggregate shape separating device.

[Explanation of symbols]

10 ... Shape separation device, 12 ... Rotating body, 12a ... Inclined surface, 12b ... Perimeter, S1 ... Collection tank, S2 ... Collection tank, S3
・ ・ ・ Collection tank, S4 ・ ・ ・ Collection tank, S5 ・ ・ ・ Collection tank, S6 ・ ・ ・ Collection tank, S7 ・ ・ ・ Collection tank, S8 ・ ・ ・ Collection tank, S9 ・ ・ ・ Collection tank, 15
・ ・ ・ Partition wall, L1 ・ ・ ・ Locus, L2 ・ ・ ・ Locus, L3 ・ ・ ・ Locus,
L4 ... locus, L5 ... locus, L6 ... locus, L7 ... locus, L
8 ... Locus, L9 ... Locus.

Claims (31)

[Claims] 1. A cross-sectional shape is trapezoidal, triangular, semicircular, substantially semicircular, inverted bowl-shaped, or bilaterally symmetrical stepwise, and has a linear and / or curved inclined surface, and can be rotated and, if necessary, It consists of a truncated cone type, an umbrella type, a cone type, an inverted bowl type, or a convex type rotating body that vibrates up and down, and a collection tank provided outside the peripheral edge of the lower side of the inclined surface of the rotating body, Utilizing the fact that the hydraulic composition aggregate is dropped to a position on the upper side of the inclined surface of the rotating body, and the movement locus is different depending on the shape of the hydraulic composition, and water is removed from the hydraulic composition aggregate. A shape-separating apparatus for a hydraulic composition, which shape-separates a hard composition into various shapes and collects the shape-separated hydraulic composition in the recovery tank according to the shape. 2. The shape separating device for a hydraulic composition according to claim 1, wherein at least one strip-shaped surface smooth portion is formed on the inclined surface of the rotating body. 3. The inclined surface of the rotating body is formed with at least one roughness.
A shape separating device for the hydraulic composition described. 4. The hydraulic composition according to claim 1, wherein at least one roughness band-like portion is formed on the inclined surface of the rotating body. Shape separation device. 5. A partition wall is disposed on the inclined surface of the rotating body, and at least one strip-shaped surface smooth portion is formed on the surface of the partition wall. 4. A shape separating device for the hydraulic composition according to any one of 4 above. 6. The partition wall is disposed on the inclined surface of the rotating body, and the partition wall surface is formed to have at least one roughness. Shape separation device for hydraulic composition according to item 3. 7. Using the shape separating device for a hydraulic composition according to claim 1, the rotating body of the shape separating device is rotated and, if necessary, vertically vibrated to tilt the rotating body. By using the fact that the hydraulic composition aggregate is dropped to the position on the upper side of the slope of the surface, and the movement trajectory is different depending on the shape of the hydraulic composition, various hydraulic compositions can be selected from the hydraulic composition aggregate. A hydraulic composition characterized by being shape-separated into shapes and recovering the shape-separated hydraulic composition in a recovery tank provided outside the peripheral edge of the inclined surface of the rotating body on the lower side of the inclined surface. Shape separation method. 8. The water according to claim 7, wherein each of the shapes is at least one of spherical, lump, polygonal, polygonal pyramidal, columnar, rod-shaped, needle-shaped, plate-shaped, and scaly. Shape separation method for hard composition. 9. The shape-separated hydraulic composition contains at least one of spherical, lumpy, polygonal and polygonal pyramidal shapes, or contains more of them, at least one of high compressive strength and high fluidity. The method for separating the shape of the hydraulic composition according to claim 7, which comprises: 10. The shape-separated hydraulic composition is columnar,
The hydraulic composition according to claim 7 or 8, which has at least one characteristic of high tensile strength and high bending strength, which contains at least one of rod-shaped, needle-shaped, plate-shaped, and scaly or contains more of them. Shape separation method. 11. A hydraulic composition comprising ordinary Portland cement, blast furnace cement, fly ash cement, quick-setting cement, fast-setting cement, ultra-fast setting cement, ultra-fast-setting cement, low-pyrogenic cement, cement for ALC, and oil. 11. At least one of well cement, acid resistant cement, seawater resistant cement, blast furnace slag, converter slag, fly ash, ground improvement material, quick lime, gypsum, expansive cement, and destructive material. The method for separating the shape of a hydraulic composition according to any one of the above. 12. A shape-separated hydraulic composition obtained by separating and recovering by the method of separating a hydraulic composition according to claim 7. 13. The cross-sectional shape is any one of trapezoidal, triangular, semicircular, substantially semicircular, inverted bowl-shaped and bilaterally symmetrical stepwise, and has a linear and / or curved inclined surface, and can be rotated and, if necessary, It consists of a truncated cone type, an umbrella type, a cone type, an inverted bowl type, or a convex type rotating body that vibrates up and down, and a collection tank provided outside the peripheral edge of the lower side of the inclined surface of the rotating body, By utilizing the fact that the aggregate aggregate is dropped to a position on the upper side of the inclined surface of the rotating body and the movement locus varies depending on the shape of the aggregate, the aggregate is formed into various shapes from the aggregate. A shape separation device for an aggregate that is separated and shape-separated into the collection tank according to its shape. 14. The shape separating device for an aggregate according to claim 13, wherein one or more strip-shaped surface smooth portions are formed on the inclined surface of the rotating body. 15. The aggregate shape separating device according to claim 13 or 14, wherein the inclined surface of the rotating body is formed with at least one roughness. 16. The shape separation of the aggregate according to claim 13, wherein at least one strip portion having roughness is formed on the inclined surface of the rotating body. apparatus. 17. The partition wall is disposed on the inclined surface of the rotating body, and at least one strip-shaped surface smooth portion is formed on the surface of the partition wall. 16. The aggregate shape separating device according to any one of 16. 18. A partition wall is provided on the inclined surface of the rotating body, and the partition wall surface is formed with at least one roughness. The shape separation device for aggregates according to 1. 19. An aggregate shape separating device according to any one of claims 13 to 18 is used, wherein a rotating body of the shape separating device is rotated and vertically vibrated if necessary, so that By using the fact that the aggregate aggregate is dropped to the position on the upper side of the slope and the movement trajectory is different depending on the aggregate shape, the aggregate is separated into various shapes from the aggregate aggregate, and the shapes are separated. A method for separating the shape of an aggregate, characterized in that the aggregate is recovered in a recovery tank provided outside the peripheral edge of the inclined surface of the rotating body on the lower side of the inclined surface according to its shape. 20. The aggregate according to claim 19, wherein the various shapes are at least one of a spherical shape, a massive shape, a polygonal shape, a polygonal pyramid shape, a columnar shape, a rod-like needle shape, a plate shape, and a scaly shape. Shape separation method. 21. The shape-separated aggregate has at least one characteristic of high compressive strength and high fluidity, which contains at least one of spherical, massive, polygonal, and pyramidal shapes or more. The method for separating the shape of an aggregate according to claim 19 or 20. 22. The shape-separated aggregate contains at least one of columnar, rod-shaped, needle-shaped, plate-shaped, and scale-shaped aggregates, or contains more of them, and exhibits at least one characteristic of high tensile strength and high bending strength. The method for separating the shape of aggregate according to claim 19 or 20, which has. 23. The aggregate is natural gravel, artificial gravel, natural sand,
The method for separating the shape of aggregate according to any one of claims 19 to 22, which is at least one of blast furnace slag, fly ash, silica stone, and silica fume. 24. A shape-separated aggregate obtained by separating and collecting by the method for separating aggregate shape according to any one of claims 19 to 23. 25. Green concrete comprising the shape-separated hydraulic composition according to claim 12 as cement, and a mixture of the hydraulic composition, aggregate, water and optionally a water reducing agent. 26. Ready-mixed concrete comprising a mixture of the shape-separated aggregate, cement, water and optionally a water-reducing agent according to claim 24. 27. The shape-separated hydraulic composition according to claim 12, which is cement, and the hydraulic composition and claim 2.
A fresh concrete comprising a mixture of the aggregate of which the shape is separated according to 4, and water and, if necessary, a water reducing agent. 28. A cured hydraulic composition obtained by curing a mixture of the hydraulic composition of claim 12, the aggregate, water and optionally a water reducing agent. 29. A hydraulic composition cured product obtained by curing the mixture of the shape-separated aggregate, hydraulic composition, water and optionally a water reducing agent according to claim 24. 30. A hydraulic composition obtained by curing the mixture of the shape-separated hydraulic composition according to claim 12, the aggregate of the shape-separated aggregate according to claim 24, water, and optionally a water reducing agent. Hardened body. 31. A hydraulic composition cured body construct obtained by constructing the hydraulic composition cured body according to any one of claims 28 to 30 into a predetermined structure.