JP5111673B1 - Form for creating test piece for test of elution of harmful substances contained in inorganic waste or soil, and method of using the same - Google Patents

Abstract

An object of the present invention is to accurately determine the volume of a test piece by increasing the molding accuracy of the mold, increasing the strength, increasing the density of the cylindrical test piece to be created, and eliminating variations in diameter.
SOLUTION: Two semi-cylindrical bodies 3 are paired, and the corresponding surfaces of edge surfaces 4 along the axial direction are connected to the outer peripheral surfaces of both semi-cylindrical bodies 3 so as to face each other. The outer frame cylindrical body 2 is formed, and both semi-cylindrical coupling / separating means 5 and the like capable of separating the outer frame cylindrical body 2 into the semi-cylindrical body 3 are provided. Inside the outer frame cylindrical body 2, two semi-cylindrical bodies 11 are paired, and the inner frame cylindrical body 12 in which the corresponding surfaces of the edge surfaces 13 along the axial direction are opposed to each other is accommodated. In addition, the peeling cylinder 14 in which a flat plate having a peeling property and elasticity to resist deformation is formed in a cylindrical shape is accommodated. Further, the inside of the peeling cylinder 14 is filled with a kneaded mixture of inorganic waste, soil and cement to form a test piece creation space in which a test piece is created.
[Selection] Figure 1

Description

  In the present invention, when inorganic waste or soil belonging to general waste, industrial waste is kneaded with cement, solidified and disposed in a final disposal site, how much harmful substances are eluted from the solidified landfill after that. The present invention relates to a test piece preparation mold for testing the elution amount of harmful substances contained in inorganic waste or soil and a method of using the same.

  Conventionally, waste to be disposed of as unnecessary is general waste discharged with daily life and industrial waste generated with business activities. General waste refers to waste other than industrial waste. Depending on the type of such waste, safe ones are either landfilled or sent to an incineration site for incineration. However, wastes contain hazardous metals such as mercury and cadmium, and dioxins. In particular, recently, radioactive materials are contained in waste and soil due to the nuclear accident.

  If the waste to be disposed of contains organic waste, the organic waste is extremely small in density and bulky. Moreover, although organic waste tends to generate gas, as a disposal method for preventing the generation of gas from waste, a disposal method by solidifying waste is proposed. However, even if the waste is kneaded with cement and solidified, if organic waste is contained, the portion is brittle and the strength of the solidified product cannot be increased.

  Therefore, the present applicant has previously kneaded various inorganic wastes with cement as Japanese Patent No. 4317260, and if the water contained in the inorganic waste does not reach the required amount, further water is added and kneaded. The unit solidified products obtained by compressing and solidifying and molding the kneaded product are sequentially placed and arranged in the horizontal direction, and are sequentially placed and stacked in the vertical direction so that a large number of unit solidified products are joined together. , Presenting a number of unit solidification molding disposal methods and a number of unit solidification molding disposal structures in the final disposal site formed by integrating the entire inorganic waste landfilled in the final disposal site by cement solidification disposal. During and after disposal, environmental pollution is unlikely to occur, waste can be quickly disposed of, waste can be easily managed, and the site of the disposal site can be used quickly and effectively. It was.

  In order to evaluate the safety of such structures to the environment such as soil and groundwater, JIS is a method for testing the amount of toxic substances contained in inorganic waste that constitutes the solidified unit of the structure. Stipulates the dissolution test method. Therefore, when conducting the toxic substance elution test, the core was extracted from the solidified unit solidified and disposed of at the final disposal site in order to obtain a sample that remains available.

  However, if the core (sample) extracted from the unit solidified material solidified at the final disposal site is used to perform the hazardous substance elution test, the types of hazardous substances contained in the test solution eluted from the core When the amount of elution is measured and the danger is clarified, the unit solidified material already solidified on site must be removed by crushing. In addition, the unit solidified product that has been removed must be further crushed and re-processed, such as newly kneaded with cement, and then solidified again on site to form the unit solidified product. Therefore, the burden is large and problematic.

  Therefore, when inorganic waste is kneaded with cement, solidified and landfilled, a test piece (specimen) is prepared in advance from these inorganic waste and cement to elute harmful substances contained in inorganic waste. A volume test is recommended. Then, after toxic substances are eluted from the test piece by a test to obtain a test solution, the type and concentration of the toxic substances contained in the test solution are measured, and the amount of toxic substances eluted from the test piece is measured. Then, the amount of the inorganic waste and the amount of cement can be appropriately determined in consideration of the amount of the toxic substance eluted, which makes it possible to perform landfill disposal with high safety, which is convenient.

  However, there is generally no test piece preparation mold for testing the elution amount of harmful substances contained in inorganic waste. Therefore, diversion of a concrete piece test mold for concrete strength test can be considered. And as a test piece creation formwork for concrete strength test, for example, what divides a cylindrical body of a formwork body into two equal parts is disclosed (refer to patent documents 2). When inorganic waste containing toxic substances is solidified with cement and disposed of, test pieces are prepared in advance using these inorganic waste and cement, and test data is obtained from the test pieces. As a method of appropriately managing the solidification treatment in actual disposal, for example, asbestos-containing asbestos waste, cement, water and additives are kneaded, filled into a mold, compacted and molded , Confirm the specific gravity and compressive strength with the test piece prepared in advance using such mixed materials, and manage the compressive strength of the solidified material of the mixed material after the molding process based on the specific gravity at the time of molding the test piece. A cement solidification method for asbestos waste to be performed is disclosed (see Patent Document 3).

Patent No. 4317260 Japanese Utility Model Sho 62-173908 Japanese Patent No. 4811732

  However, as is apparent from the description in Patent Document 2, when the cylindrical body of the mold body is divided into two equal parts, the two semi-cylindrical bodies are combined and used as a cylindrical body when creating the test piece. At the time of taking out, it is necessary to separate into two half cylinders. For this reason, it is necessary to provide two semi-cylindrical coupling / separation means for separating the two semi-cylindrical bodies on the outer peripheral surface of the cylindrical body, and connecting the two semi-cylindrical bodies. A necessary structure as an outer frame must be provided. As a member for forming the outer peripheral surface of the test piece in the cylindrical body, a short cylindrical body of the reinforcing member is fitted in the upper end portion of the cylindrical body, and further, the short cylindrical body is inserted into the cylindrical body on the lower side thereof. A thin film cylindrical mold release member is fitted. For this reason, the diameter of the inner peripheral surface of the cylindrical body is different between the upper end portion and the lower side thereof, and since the diameter is not the same, there is a step on the inner peripheral surface. Then, the test piece molding accuracy of the mold cannot be increased, and the diameter of the created test piece is likely to fluctuate up and down, making it difficult to obtain the exact volume of the test piece. Therefore, it is not suitable for diverting to a test piece preparation mold for testing the elution amount of harmful substances contained in inorganic waste. In Patent Document 3, a rolling plate is provided at the tip of a small rammer or breaker as a compacting method for the mixed material filled in the mold in order to increase the density of the prepared test pieces. The molding process is shown in which a compacting machine is used to perform compaction by vibration rolling. However, a simple bottomed cylindrical formwork is merely shown as the formwork.

The present invention has been made paying attention to such conventional problems , increasing the molding accuracy of the mold , increasing the strength, increasing the density of the cylindrical test piece to be created, and variation in diameter depending on the part. This makes it easy to determine the exact volume of the test piece, and is suitable for detecting the amount of elution per unit volume in the elution amount test that is performed in advance when inorganic waste or soil is solidified at the final disposal site. Form the creation space and use the bottom member that closes the lower opening of the test piece creation space of the mold and the base that supports the mold to stand up, and the upper opening of the mold test piece creation space It can be attached to inorganic waste or soil that can keep the test piece volume constant by suppressing the expansion of the test piece volume that occurs when the cement is solidified by the upper cover attaching / detaching tool. Included And to provide a material elution test test piece creating formwork and methods of use thereof.

  In order to achieve the above object, the test piece preparation mold for the test of elution of harmful substances contained in inorganic waste or soil according to the present invention uses two semi-cylindrical bodies having the same length, the same inner diameter and the same wall thickness. The outer peripheral surfaces of both semi-cylindrical bodies are paired with each other, the corresponding surfaces of the edge surfaces along the axial direction of both semi-cylindrical bodies are made to face each other, and both semi-cylindrical bodies are joined to form an outer frame cylindrical body, A body part is provided as a test piece creation space for creating a columnar test piece by providing both half cylinder joining / separating means capable of separating the outer frame cylinder into two half cylinders. Have.

  And in the vicinity of the inner peripheral surface of the outer frame cylindrical body, two semi-cylindrical bodies having the same length, the same inner diameter, and the same thickness are used as a pair, and the edge surfaces along the axial direction of both the semi-cylindrical bodies An inner frame cylindrical body is formed by accommodating the corresponding surfaces of each other and accommodated, and a flat plate having a peelability and a resilience against deformation is formed in a cylindrical shape inside the inner peripheral surface of the inner frame cylindrical body. The formed peeling cylinder is accommodated, and the inside of the peeling cylinder is a necessary amount of inorganic waste or soil-cement kneaded material, or water contained in the inorganic waste or soil. If not reached, a kneaded product to which water is further added is filled and accommodated, and compressed to form a test piece creation space for creating a test piece.

  And the bottom member which closes the lower opening of both semi-cylindrical bodies is couple | bonded with the lower end of both semi-cylindrical bodies which comprise an outer-frame cylindrical body, respectively, and the axis | shaft of an outer-frame cylindrical body stands upright in the both bottom members The upper lid that closes each upper opening of the outer frame cylindrical body, the inner frame cylindrical body that fits inside thereof, and the peeling cylinder that fits inside thereof, and the upper lid are both the outer frame and the inner frame. A cylindrical body and an upper lid attaching / detaching device that pressurizes and fixes each upper end of the peeling cylinder body, and a handle is coupled to the upper end of the screw rod arranged in the vertical direction, A screw rod with a handle whose lower end is in contact with the center of the upper lid, and a screw hole into which the screw rod can be moved up and down are provided in the center. Provided on both sides and the lower ends of both sides, with hooks protruding in the direction facing each other Each of the semi-cylindrical bodies of the outer frame cylindrical body is provided with engaging portions for locking the hook portions of the upper lid attaching / detaching tool. .

  Also, in the method of using the test piece preparation mold for testing the elution amount of harmful substances contained in inorganic waste or soil, first, the semi-cylindrical coupling / separation means provided on the outer peripheral surface of the outer frame cylindrical body is operated, The inner frame cylindrical body is fitted inside the outer frame cylindrical body, and the coupling strength of both semi-cylindrical bodies constituting the outer frame cylindrical body is increased, and the inner peripheral surface of the outer frame cylindrical body is changed to the outer peripheral surface of the inner frame cylindrical body. The clamping force is transmitted, the corresponding surfaces of the edge surfaces along the axial direction of both semi-cylindrical bodies constituting the inner frame cylindrical body are pressed against each other, and the peeling cylinder is placed inside the inner frame cylindrical body and accommodated. Further, a step of placing the sealing bottom disc and the peeling bottom disc inside the peeling cylinder and stacking and accommodating it on the bottom member facing the peeling cylinder is carried out.

  Then, the main body of the test piece creation mold is mounted at a predetermined position of the press device, and the test object is placed inside the peeling cylinder through the upper opening of the peeling cylinder that fits inside the inner frame cylindrical body. If the inorganic waste or soil-cement kneaded product, or if the inorganic waste or soil water does not reach the required amount, fill it with water-added kneaded material and peel the kneaded product. As a compression tool that stacks and accommodates on the bottom disk for use and compresses the kneaded material, the upper end is a receiving bar that contacts the tip of the pressurizing tool of the press device, and the lower end of the bar is the center of the upper surface. Prepare a plurality of compression tools using a tool composed of a disk-shaped compression head that adheres to the top, and different lengths of the compression rods depending on the upper end position of the kneaded product. It has a compression rod with an appropriate length according to the upper end position of the kneaded product. After selecting and using a compression tool, and repeatedly filling and compressing the kneaded product until it reaches the upper end of the peeling cylinder, remove the main body of the test piece creation mold from the press or leave it attached to the press. In this state, an upper disc for peeling and an upper lid are laminated on the upper ends of both the outer frame and the inner frame of the main body of the test piece creation mold and the peeling cylinder, The upper lid is pressure-fixed using an upper lid attachment / detachment tool, and the kneaded material accommodated in the test piece creation mold is solidified and cured for a certain period of time.

  The test piece preparation mold for testing the amount of toxic substance contained in inorganic waste or soil according to the present invention uses two semi-cylindrical bodies having the same length, the same inner diameter and the same thickness as the main body of the mold. By fitting an inner frame cylinder composed of two semi-cylinders of the same length, the same inner diameter, and the same wall thickness into the outer frame cylinder configured to form a double cylinder The strength of the mold can be increased together with the outer frame cylinder by using the inner frame cylinder as a reinforcing member. Therefore, it is possible to increase the density of the test piece to be created by increasing the compression force applied to the kneaded material filled and accommodated inside the mold. Then, both the outer frame and the inner frame are divided into two equal parts, so that the outer frame cylinder is separated into two semi-cylindrical bodies as the outer frame of the mold, Further, it can be manufactured with an emphasis on the indispensable structure such as both half-cylinder coupling / separation means for coupling two separated half-cylinders. On the other hand, in the inner frame cylindrical body, when the tightening force is transmitted from the inner peripheral surface of the outer frame cylindrical body to the outer peripheral surface of the inner frame cylindrical body by both the semi-cylindrical coupling / separation means, the two half cylinders constituting the inner frame cylindrical body The corresponding surfaces of the edge surfaces along the axial direction of the body can be pressed uniformly and strongly, and both the semi-cylindrical bodies can be combined to easily form the inner frame cylindrical body. And since the inside of the inner frame cylindrical body becomes a space for creating a test piece, when manufacturing both semi-cylindrical bodies constituting the inner frame cylindrical body, a variation in diameter does not occur depending on the peripheral surface of each semi-cylindrical body. Can be manufactured with an emphasis on diameter. Therefore, the test piece molding accuracy of the mold can be increased by the cylindrical body of the outer frame and the inner frame.

  And by accommodating the peeling cylinder which formed the flat plate which has the elastic force which resists releasability and a deformation | transformation inside the inner peripheral surface vicinity of the inner frame cylindrical body, the peeling cylinder of the peeling cylinder Since the elastic force acts in the direction in which the diameter increases, the peeling cylinder can be brought into close contact with the inner peripheral surface of the inner frame cylinder. Then, if the inside of the peeling cylinder does not reach the required amount of inorganic waste or soil-cement kneaded material, or the inorganic waste or soil water, further water is required. By filling and storing the added kneaded material and compressing it into a space for creating a test piece that creates a test piece, the density of the cylindrical test piece to be created is increased, and variations in diameter due to the outer peripheral surface are eliminated. The exact volume of the test piece can be determined. Therefore, when solidifying inorganic waste or soil at the final disposal site, for preparing test pieces suitable for detecting the amount of elution per unit volume in the toxic substance elution test conducted in advance in inorganic waste or soil It becomes a test piece creation formwork having a space.

  And the bottom member which closes the lower opening of both semi-cylindrical bodies is couple | bonded with the lower end of both semi-cylindrical bodies which comprise an outer-frame cylindrical body, respectively, and the axis | shaft of an outer-frame cylindrical body stands upright in the both bottom members By making it the base part to support, a bottom member and a base part can be combined. In addition, the outer frame cylinder, the inner frame cylinder that fits inside it, the upper lid that closes each upper opening of the peeling cylinder that fits inside, the upper lid that is the outer frame, both the inner frame cylinder, and the peeling By attaching an upper lid attaching / detaching tool that pressurizes and fixes each upper end of the cylindrical body for use, the upper lid can be freely attached to and detached from the main body of the test piece creation mold.

  Then, the upper lid attaching / detaching tool is coupled to the upper end of the screw rod arranged in the vertical direction, the screw rod with the handle having the lower end of the screw rod in contact with the center of the upper lid, and the screw rod is moved up and down. A screw hole that fits freely is provided in the center, a central part that is horizontally arranged, both side parts that hang down from both ends of the central part, and a hook part that protrudes in a direction facing each other, respectively. Each of the semi-cylindrical bodies constituting the outer frame cylindrical body is provided with engaging portions for engaging the hook portions of the upper lid attaching / detaching tool. Therefore, when the upper lid is mounted, the upper lid is closed on the upper opening of both the outer and inner cylinders of the outer frame and the inner cylinder and placed on the upper ends of them, and the screw rod support frame with handle of the upper lid mounting / demounting tool Hooks provided at both ends of the outer frame cylindrical body When the screw rod is rotated in one direction by operating the handle and the screw rod is moved downward, the lower end comes into contact with the center of the upper lid. .

Therefore, by further rotating the screw rod in the same direction, the upper lid can be firmly fixed to the upper ends of both the outer and inner cylinders and the peeling cylinder. For this reason, if the amount of water contained in the inorganic waste or soil and cement, or the amount of water contained in the inorganic waste, does not reach the required amount in the test piece creation space of the mold, Filling and storing a kneaded product to which water has been added, solidifying the solid material made of the compressed kneaded material, and curing it for a certain period of time, the volume of the test piece generated when the cement contained in the kneaded material solidifies The volume of the test piece can be kept constant by suppressing expansion. Then, by rotating the screw rod in the opposite direction and removing the hook portion of the upper lid attaching / detaching tool from the engaging portion, the pressing force applied to the upper lid from the screw rod can be removed, so the upper lid is removed from the upper end of each cylindrical body. The created test piece can be taken out.

  In addition, according to the method of using the test piece preparation mold for the test of elution of harmful substances contained in inorganic waste or soil according to the present invention, both semi-cylindrical coupling / separation means provided on the outer peripheral surface of the outer frame cylindrical body are operated. The inner frame cylindrical body is fitted inside the outer frame cylindrical body, and the clamping force is transmitted from the inner peripheral surface of the outer frame cylindrical body to the outer peripheral surface of the inner frame cylindrical body. Corresponding surfaces of the edge surfaces along the axial direction of the cylindrical body are pressed against each other, and a peeling cylinder is placed inside the inner frame cylindrical body, and further, a sealing bottom disc is placed inside the peeling cylinder. And the bottom disc for peeling is put on the bottom plate facing the inside of the peeling cylinder, and the bottom of the peeling cylinder can be formed with the bottom disc for sealing, and the bottom circle for sealing The plate rides on the bottom member of the outer frame cylinder. Then, the bottom disc for sealing becomes a reinforcing member for the bottom member, and the joint of the bottom member is closed by the bottom disc for sealing, and leakage of the kneaded material filled and accommodated inside can be prevented well. Then, when the peeling bottom disk is stacked and accommodated on the sealing bottom disk that forms the bottom of the peeling cylinder, the inner peripheral surface and the bottom surface of the test piece creation space are well formed by the peeling member. it can.

  Then, the main body of the test piece creation mold is mounted at a predetermined position of the press device, and the test object is placed inside the peeling cylinder through the upper opening of the peeling cylinder that fits inside the inner frame cylindrical body. If the inorganic waste or soil-cement kneaded product, or if the inorganic waste or soil water does not reach the required amount, fill it with water-added kneaded material and peel the kneaded product. As a compression tool that stacks and accommodates on the bottom disk for use and compresses the kneaded material, the upper end is a receiving bar that contacts the tip of the pressurizing tool of the press device, and the lower end of the bar is the center of the upper surface. Prepare a plurality of compression tools using a tool composed of a disk-shaped compression head that adheres to the top, and different lengths of the compression rods depending on the upper end position of the kneaded product. It has a compression rod with an appropriate length according to the upper end position of the kneaded product. By selecting and using a compression tool, the kneaded product is repeatedly filled and compressed until it reaches the upper end of the peeling cylinder to form a solid material. Can be

  Then, with the main body part of the test piece creation mold form removed from the press apparatus or attached to the press apparatus, the outer frame, the inner frame cylindrical body and the peeling cylinder body constituting the main body part of the test piece creation mold form Laminate an upper disc for peeling and an upper lid on each upper end of the, and press and fix the upper lid using an upper lid wearing tool to solidify the solid matter contained in the test piece creation formwork Then, by curing for a certain period of time, create a test piece suitable as a test piece for the amount of toxic substance elution contained in inorganic waste or soil, and remove the top cover to remove the test piece from the mold. It can be peeled off and easily taken out.

Hereinafter, the best mode of the present invention will be described with reference to FIGS.
FIG. 1 is a longitudinal sectional view corresponding to the XX sectional view of FIG. 13, showing a use state of a test piece preparation mold for toxic substance elution amount test contained in inorganic waste or soil to which the present invention is applied. . The test piece preparation mold 1 for testing the amount of toxic substance contained in this inorganic waste or soil has a symmetrical structure as shown in FIG. And in order to comprise the outer frame cylindrical body 2 used as the outer frame of the formwork 1, two semi-cylinder bodies 3 having the same length, the same inner diameter, and the same thickness are used as a pair. At that time, both the semi-cylindrical bodies 3 are made of, for example, high-strength steel, and the length is 300 mm, the inner diameter is 115.8 mm, and the wall thickness is 12 mm. Then, in the vicinity of each edge surface 4 along the axial direction of both semi-cylindrical bodies 3, a rectangular steel coupling plate 5 having the same length as both the semi-cylindrical bodies 3 is connected to the edge surface 4 in the same manner. These are arranged so as to be flat, and are connected by, for example, welding or the like and protruded. In addition, since each coupling plate 5 is used as a coupling plate for both semi-cylindrical bodies 3, the bolt holes 6 are separated by five equal distances along the axial direction of both semi-cylindrical bodies 3. Each is provided.

  In this way, the semi-cylindrical bodies constituting the outer frame cylindrical body 2 are provided by providing the coupling plates 5 with bolt holes on both sides of the semi-cylindrical bodies 3 and using the bolts and nuts that fit into the respective bolt holes 6. 3, the corresponding surfaces of the edge surfaces along the axial direction of the two semi-cylindrical bodies 3 are opposed to each other, and the two semi-cylindrical bodies 3 are joined to form the outer frame cylindrical body 2. Both half-cylinder coupling / separating means capable of separating the body 2 into two half-cylinders 3 are provided. Therefore, the bottom members 7 for closing the lower openings of both the semi-cylindrical bodies 3 are respectively coupled to the lower ends of both the semi-cylindrical bodies 3 constituting the outer frame cylindrical body 2 and the bolted coupling plates 5 projecting on both sides thereof. The bottom member 7 is used as a pedestal for supporting the outer frame cylindrical body 2 with its axis in the vertical direction. At that time, as the bottom member 7, for example, a wide steel rectangular plate having a long side length of 210 mm and a short side length of 103 mm is used. And on the outer peripheral surfaces of both semi-cylindrical bodies 3, trapezoidal protrusions are respectively protruded as engaging portions 9 for locking a hook portion of an upper lid attaching / detaching tool 8 to be described later in the vicinity of the center of the upper end portion, respectively. A U-shaped handle 10 for operation is provided on the lower side in the vicinity of the engaging portion 9. Note that both the engaging portion 9 and the handle 10 protrude in a direction perpendicular to the axis of both the semi-cylindrical bodies 3.

  An inner frame cylindrical body 12 configured by using two semi-cylindrical bodies 11 having the same length, the same inner diameter, and the same thickness as shown in FIG. Accommodate and make a double cylinder. At that time, both the semi-cylindrical bodies 11 are made of, for example, high-strength steel, and the length is 300 mm, the inner diameter is 95 mm, and the wall thickness is 10 mm. Then, the strength of the main body portion of the mold 1 can be increased together with the outer frame cylinder 2 by using the inner frame cylinder 12 as a reinforcing member. Therefore, a large compressive force can be applied to the kneaded material filled and accommodated in the main body of the mold 1.

  In this way, when both the outer frame and the inner frame cylinders 2 and 12 are divided into two equal parts, the outer frame cylinder 2 joins both the semi-cylindrical bodies 3 as the outer frame of the mold 1 to the outside. The frame cylindrical body 2 can be formed, and the outer frame cylindrical body 2 can be manufactured with an emphasis on the essential structure such as the two semi-cylindrical coupling / separating means that can separate the two semi-cylindrical bodies 3. On the other hand, in the inner frame cylindrical body 12, a clamping force is applied from the inner peripheral surface of the outer frame cylindrical body 2 to the outer peripheral surface of the inner frame cylindrical body 12 by means of both semi-cylindrical coupling / separating means provided on the outer peripheral surface of the outer frame cylindrical body 2. , The corresponding surfaces of the edge surfaces 13 along the axial direction of the accommodated half-cylindrical bodies 11 constituting the inner frame cylindrical body 12 can be uniformly and strongly pressed together, and both the semi-cylindrical bodies 11 can be easily combined. The inner frame cylindrical body 12 can be formed. And since the inside of the inner frame cylindrical body 12 becomes a space for creating a test piece, when manufacturing both the semi-cylindrical bodies 11 constituting the inner frame cylindrical body 12, the diameter of the inner circumferential surface of both the semi-cylindrical bodies 11 is larger. It can be manufactured with an emphasis on diameter so that no variation occurs. Therefore, the test piece molding accuracy of the main body portion of the test piece creation mold 1 can be increased by the cylindrical bodies 2 and 12 of the outer frame and the inner frame.

  Then, the peeling cylinder shown in FIG. 4 is formed in the vicinity of the inner peripheral surface of the inner frame cylindrical body 12 formed by pressing and contacting the corresponding surfaces of the edge surfaces 13 along the axial direction of both the semicylindrical bodies 11. Put the body 14 in place. At that time, as the peeling cylinder 14, for example, a thin polycarbonate having a rectangular long side length of 300 mm, a short side length of 293 mm, and a thickness of 0.8 mm, which has peelability and elasticity against deformation. A flat plate is formed into a cylindrical shape and used. Then, elasticity acts in the direction in which the diameter of the peeling cylinder 14 increases, so that the peeling cylinder 14 can be brought into close contact with the inner peripheral surface of the inner frame cylinder 12.

  Therefore, the sealing bottom disc 15 and the peeling bottom disc 16 shown in FIG. 5 are placed inside the peeling cylinder 14 and laminated on the bottom member 7 facing the inside of the peeling cylinder 16. And accommodate. At that time, for example, a steel disc having a diameter of 94 mm and a thickness of 6 mm is used as the bottom disc 15 for sealing, and a thin polycarbonate circle having a diameter of, for example, 94 mm and a thickness of 0.8 mm is used as the bottom cylindrical body 16 for peeling. Use a plate. Then, the bottom portion of the peeling cylinder 14 can be formed by the sealing bottom disc 15, and the sealing bottom disc 15 gets on the bottom member 7 of the outer frame cylinder 2. Therefore, the bottom disc 15 for sealing serves as a reinforcing member for the bottom member 7, and the joint of the bottom member 7 is closed by the bottom disc 15 for sealing, so that the kneaded material filled and accommodated inside can be leaked well. Can be prevented.

  As described above, when the peeling bottom disc 16 is laminated on the sealing bottom disc 15 forming the bottom of the peeling cylinder 14, the peeling member 14 and the inner peripheral surface and the bottom surface of the test piece creating space 17 are formed. 16, and the main body 18 of the test piece creation mold 1 shown in FIG. 6 is completed. The test piece creation space 17 has a cylindrical shape, and there is no variation due to the portion of the diameter of the inner peripheral surface, and the diameter is constant. When the two semi-cylindrical bodies 3 constituting the outer frame cylindrical body 2 are coupled, the assembled state of the bolts 19 and the nuts 20 is reversed every other bolt hole 6 of the corresponding coupling plate 5 with the bolt holes. By changing to, the bond is strengthened and stabilized.

An upper lid 21, an upper disc 22 for peeling, and an upper lid attaching / detaching tool 8 as shown in FIG. At this time, for example, a steel disc having a diameter of 145 mm and a thickness of 25 mm and having a receiving recess 23 at the center of the upper surface is used as the upper lid 21. For example, a thin polycarbonate disk having a diameter of 145 mm and a thickness of 0.8 mm is used as the peeling upper disk 22. Then, the handle 25 is coupled to the upper end of the screw rod 24 arranged in the vertical direction, and the lower end of the screw rod 24 is fitted into the recess 23 provided in the center of the upper surface of the upper lid 21 to contact the upper lid attaching / detaching tool 8. A screw rod 24 with a handle and a screw hole 26 into which the screw rod 24 can be moved up and down are provided in the center. A central portion 27 arranged in the horizontal direction and both side portions 28 depending from both ends of the central portion 27. And a bent rod-shaped screw rod support frame 30 with a handle having hook portions 29 protruding in opposite directions and provided at the lower ends of both side portions 28 thereof. The upper lid attaching / detaching tool 8 is also made of steel. Then, the upper lid 21 can be freely attached to and detached from the main body 18 of the test piece creation mold 1 by the upper lid attachment / detachment tool 8. Then, as shown in FIG. 8, each of the outer frame cylinder 2, the inner frame cylinder 12 that fits inside the outer frame cylinder 12, and the peeling cylinder 14 that fits inside the upper frame 21 via the upper disc 22 for peeling by the upper lid 21. The upper opening is closed, and the upper lid 21 and the peeling upper disc 22 are pressed against the upper ends of both the outer and inner cylinders 2 and 12 and the peeling cylinder 14 by the upper lid attaching / detaching tool 8, It can be firmly fixed.

  At the time of creating the test piece, the main body 18 of the test piece creating mold 1 is mounted at a predetermined position of the press device. Therefore, inorganic waste or soil and cement as a test object are placed inside the peeling cylinder 14 through the upper opening of the peeling cylinder 14 that fits inside the cylindrical bodies 2 and 12 of the outer frame and the inner frame. If the amount of water contained in the inorganic waste does not reach the required amount, the mixture is further filled with the kneaded material, and the kneaded material is stacked on the bottom disc 16 for separation. Compress the kneaded product. Therefore, as the compression tool 31, a compression rod-like body 32 whose upper end is a receiving portion with which the tip of the pressurizer of the press device abuts, and a disk-like compression head 33 whose lower end of the rod-like body 32 is fixed to the center of the upper surface, Use a tool consisting of In addition, as shown in FIG. 9, a plurality of, for example, three compression tools 31 (31a, 31b, 31c) are prepared, and the length of the compression bar 32 is changed according to the upper end position of the kneaded product. To do. At this time, the compression tool 31 is made of, for example, steel, and the diameter of the compression rod 32 is made equal to 45.6 mm, but the length is made different to be 308 mm, 157 mm, and 51 mm. However, the compression head 33 has the same diameter of 45.6 mm, but the thickness varies depending on the length to 43 mm, 41 mm, and 34 mm.

  10, 11, and 12, the test piece creation space 17 includes a compression rod 31 having an appropriate length corresponding to the upper end position of the kneaded material from among the compression tools 31 a, 31 b, and 31 c. Select and use tools. At that time, the compression tool 31a is used when filling and compressing the lower part of the test piece creating space 17, the compression tool 31b is used when filling and compressing the middle part, and the compression tool 31b is used when filling and compressing the upper part. A compression tool 31c is used. Then, for example, a hydraulic press device is used as the press device 34, and the kneaded material filled and accommodated in the test piece creation space 17 of the main body portion 18 of the test piece creation mold 1 mounted on the support base 35 is pressed. A high pressure, for example, a pressure of 270 KN is applied from the pressure end of the pressure tool 36 of the device 34 to the upper end surface of the compression rod 32 of the compression tool 31. In this way, the filling and compression of the kneaded material are repeated until the upper end of the peeling cylinder 14 is reached. Then, a solid material composed of a plurality of layers, for example, five kneaded material layers 37 (37a,... 37e) formed by filling and compressing the kneaded material in the test piece creation space 17 can be formed. In addition, since the kind of inorganic waste accommodated in the test piece creation space 17 and the kind and amount of soil can be selected in the implementation, it can be changed for each kneaded material layer, for example.

Therefore, the handle of the upper lid attaching / detaching tool 8 is attached to the main body 18 as shown in FIGS. 13 and 14 with the main body 18 of the test piece creation mold form removed from the press 34 or attached to the press 34. 25 is rotated in a certain direction to increase the pressure applied from the screw rod 24 to the upper lid 21 and the upper disc 22 for peeling, and the upper lid attaching / detaching tool 8 is fixed. Then, since the solid substance which consists of the compressed kneaded material accommodated in the test piece preparation mold 1 is solidified, it is cured for a certain period. In this way, when cured for a certain period, the volume of the test piece can be kept constant by suppressing the expansion of the volume of the test piece that occurs when the cement contained in the kneaded material is solidified. Therefore, the handle 25 is rotated in the reverse direction after a certain period of time to remove the upper lid attaching / detaching tool 8, the upper lid 21, and the peeling upper disk 22 from the main body portion 18, and further, the outer frame cylindrical body 2 of the main body portion 18 is removed. The coupling of the two half-cylindrical bodies 3 is loosened by loosening the coupling of the bolts 19 and nuts 20 used for coupling the coupling plates 15 with the bolt holes constituting the two-cylindrical coupling / separating means. Clamping force applied to the inner frame cylindrical body 12 from the frame cylindrical body 2 is eliminated, and an increase in diameter due to the elastic force of the peeling cylinder 14 that fits inside the inner frame cylindrical body 12 is utilized, and the peeling cylinder 14 is used. Is peeled off from the created test piece, and the test piece formed in a cylindrical shape is taken out from the inside.

  As a result, a test piece having a high density and a uniform diameter can be obtained as a test piece for toxic substance elution amount test with no variation due to the portion of the outer peripheral surface. Then, the volume of the test piece can be accurately obtained. Therefore, when the inorganic waste or soil is solidified at the final disposal site, the test piece can be dissolved per unit volume as a test piece for testing the amount of hazardous substances contained in the inorganic waste or soil. It becomes suitable for detection of quantity.

It is the longitudinal cross-sectional view which shows the use condition of the test piece preparation mold for the test substance preparation for the harmful | toxic substance elution amount test contained in the inorganic waste or soil to which this invention is applied, and is equivalent to XX sectional drawing of FIG. It is a perspective view which shows the combined state of both the semi-cylindrical bodies of the outer-frame cylindrical body which comprises the main-body part of the test piece preparation mold, and the bottom member which closes both the lower openings. It is a perspective view which shows the both semi-cylinders of the inner frame cylinder accommodated in the inside of the same outer frame cylinder. It is a perspective view which shows the cylinder for peeling accommodated in the inside of the same inner-frame cylinder. It is a perspective view which shows the bottom disk for a seal | sticker accommodated in the inside of the cylinder for peeling, and the bottom disk for peeling. It is a perspective view which shows the main-body part of the test piece preparation mold. It is a perspective view which shows the correspondence of the upper cover which closes the upper opening of the main-body part of the test piece preparation mold form, the upper disc for peeling, and the upper cover mounting / unmounting tool. It is a perspective view of the same test piece creation mold.

It is a perspective view of the compression tool from which the length from which the length used at the time of compression of the kneaded material with which it filled in the main-body part of the test piece preparation mold form differs was used. It is a longitudinal cross-sectional view which shows the use condition of the longest compression tool with respect to the kneaded material with which the main-body part of the same test piece preparation mold form was mounted | worn with the press apparatus, and the lower part in the main-body part was filled. It is a longitudinal cross-sectional view which shows the use condition of the intermediate length compression tool with respect to the kneaded material filled to the intermediate part in the main-body part of the test piece preparation mold form. It is a longitudinal cross-sectional view which shows the use condition of the shortest length compression tool with respect to the kneaded material filled to the upper part in the main-body part of the test piece preparation mold form. It is a front view of the same test piece creation formwork. It is a top view which shows the state which rotated the handle | steering-wheel of the test piece preparation mold form at the right angle direction with the center part of the screw rod support frame.

  DESCRIPTION OF SYMBOLS 1 ... Test piece preparation mold for test of elution amount of harmful substances contained in inorganic waste or soil 2, 12 ... Outer frame, inner frame cylindrical body 3, 11 ... Semi-cylindrical body 4, 13 ... Edge surface 5 ... With bolt hole Connecting plate 6 ... Bolt hole 7 ... Bottom member 8 ... Top cover attaching / detaching tool 9 ... engaging part 14 ... Peeling cylinder 15 ... Seal bottom disc 16 ... Peeling bottom disc 17 ... Test piece creation space 18 ... Main body part 19 ... Bolt 20 ... Nut 21 ... Upper lid 22 ... Upper disc for peeling 23 ... Recessed recess 24 ... Screw rod 25 ... Handle 26 ... Screw hole 27 ... Central part 28 ... Both sides 29 ... Hook part 30 ... Screw bar Support frame 31 ... Compressor 32 ... Compression rod 33 ... Compression head 34 ... Pressing device 35 ... Support base 36 ... Pressure tool 37 ... Kneaded material layer

Claims (2)

Two semi-cylindrical bodies having the same length, the same inner diameter, and the same wall thickness are used as a pair, and the corresponding surfaces of the edge surfaces along the axial direction of both semi-cylindrical bodies are relative to the outer peripheral surfaces of both semi-cylindrical bodies. Both semi-cylindrical bodies are joined to form an outer-frame cylindrical body, and both semi-cylindrical coupling / separating means capable of separating the outer-frame cylindrical body into two semi-cylindrical bodies are provided. A test piece creation mold having a main body portion for making a test piece creation space for creating a cylindrical test piece, and having the same length and the same inner diameter in the vicinity of the inner peripheral surface of the outer frame cylindrical body. The two semi-cylindrical bodies having the same thickness are used as a pair, the corresponding surfaces of the edge surfaces along the axial direction of both the semi-cylindrical bodies are opposed to each other, and an inner frame cylindrical body is formed and accommodated. A peeling cylinder having a cylindrical shape with a flat plate having peeling properties and elasticity to resist deformation inside the inner periphery of the frame cylinder. If the amount of water contained in the inorganic waste or soil mixed with soil and cement, or the water contained in the inorganic waste or soil does not reach the required amount, Fills and contains the kneaded material with water, compresses it to create a test piece space to create a test piece, and opens the lower half of both semi-cylindrical bodies at the lower end of both semi-cylindrical bodies that make up the outer frame cylindrical body The bottom members are connected to each other, and both the bottom members are used as a pedestal for supporting the outer frame cylindrical body with the axis of the outer frame vertical, and the outer frame cylindrical body, the inner frame cylindrical body fitted therein and the inner frame cylindrical body An upper lid that closes each upper opening of the peeling cylinder that fits in, and an upper lid attachment / detachment device that pressurizes and fixes the upper lid to the upper ends of both the outer frame, the inner frame, and the peeling cylinder, Connect the handle to the upper end of the screw rod that is placed in the vertical direction, and attach the handle to the upper lid. A screw rod with a handle whose lower end is in contact with the center of the upper lid, and a screw hole into which the screw rod can be moved up and down are provided in the center. The screw rod support frame with a bent rod-like handle provided on both side portions and the lower ends of the both side portions and projecting in a direction facing each other, and the semi-cylindrical bodies constituting the outer frame cylindrical body A test piece creation mold for toxic substance elution amount test contained in inorganic waste or soil, characterized in that engaging portions for engaging both hook portions of the upper lid attaching / detaching tool are provided on the outer peripheral surface. Operate both semi-cylindrical coupling / separation means provided on the outer peripheral surface of the outer frame cylindrical body, fit the inner frame cylindrical body inside the outer frame cylindrical body, and from the inner peripheral surface of the outer frame cylindrical body to the inner frame cylinder The clamping force is transmitted to the outer peripheral surface of the body, the corresponding surfaces of the edge surfaces along the axial direction of both semi-cylindrical bodies constituting the inner frame cylindrical body are pressed against each other, and the peeling cylinder is placed inside the inner frame cylindrical body In addition, a sealing bottom disc and a peeling bottom disc are placed inside the peeling cylinder, stacked on the bottom member facing the peeling cylinder, and then tested. Attaching the body part of the piece making mold to a predetermined position of the press device, and passing through the upper opening of the peeling cylinder that fits inside the inner frame cylinder, the inorganic waste that is the test object inside the peeling cylinder When the amount of water contained in the waste or soil and cement, the inorganic waste or the soil does not reach the required amount As a compression tool for compressing the kneaded material, it is filled with a kneaded material to which water is added, and the kneaded material is stacked on the bottom disc for peeling. Using a tool composed of a compression rod-shaped body to be a part and a disk-shaped compression head with the lower end of the rod-shaped body fixed to the center of the upper surface, and the length of the compression rod-shaped body according to the upper end position of the kneaded product A plurality of different compression tools are prepared, and a compression tool having a compression rod having an appropriate length corresponding to the upper end position of the kneaded product is selected and used, and the kneaded product is used as a peeling cylinder. After repeating the filling and compression until reaching the upper end of the test piece, remove the main body of the test piece creation mold from the press or leave it attached to the press. Each of the cylinders of the frame and inner frame and the cylinder for peeling Laminate an upper disc for peeling and an upper lid on the end, press and fix the upper lid using an upper lid attaching / detaching tool, and solidify the kneaded material contained in the test piece creation mold , use according to claim 1 inorganic wastes according or heavy metals leaching amount test test piece prepared mold contained in the soil, characterized in that for a predetermined period of time curing curing

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