CN211784711U - Fine grained soil inorganic binder stable material strength test mould - Google Patents
Fine grained soil inorganic binder stable material strength test mould Download PDFInfo
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- CN211784711U CN211784711U CN202020191723.5U CN202020191723U CN211784711U CN 211784711 U CN211784711 U CN 211784711U CN 202020191723 U CN202020191723 U CN 202020191723U CN 211784711 U CN211784711 U CN 211784711U
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Abstract
The utility model discloses a test mould for testing the strength of a fine-grained soil inorganic binder stable material, which comprises a circular bottom plate, a forming cylinder and a pressure head, wherein the upper surface of the circular bottom plate is provided with a forming cylinder positioning groove; the forming cylinder comprises a cylindrical hollow cylinder consisting of a left half cylinder and a right half cylinder; the left half cylinder and the right half cylinder are provided with positioning wings at the outer sides of the contact surfaces; the pressure head is divided into an upper pressure head and a lower pressure head, the upper pressure head comprises a cylindrical upper pressure head body, an annular groove is formed in the upper surface of the upper pressure head body, and a cylindrical upper pressure head handle with the same height as the upper pressure head body is arranged at the center of a circle; the lower pressure head comprises a cylindrical lower pressure head body, and an annular groove is formed in the lower surface of the lower pressure head body; but the rapid demoulding, and need not to use the knockout during the drawing of patterns, only need simple instruments such as adjustable spanner, can effectively reduce because the test piece that frictional force leads to is lost, falls the appearance of the condition such as angle, damage.
Description
Technical Field
The utility model relates to a concrete mixture intensity measuring device field especially relates to a fine grained soil inorganic binder stable material intensity test examination mould.
Background
The fine-grained soil inorganic binder stabilizing material is a mixture obtained by adding a proper amount of water, cement, lime, fly ash or other industrial waste residues into fine-grained soil and stirring, and is called as the fine-grained soil inorganic binder stabilizing material when the compressive strength meets the corresponding specified requirements after compaction and maintenance.
When the compressive strength of the fine-grained soil inorganic binder stabilizing material is measured, forming inorganic binder stabilizing material test pieces with corresponding sizes through different grain sizes, and then carrying out unconfined compressive strength test after 7 days of maintenance; the method comprises the following steps that (1) a test piece made of the fine-grained soil inorganic binder stable material is subjected to mould removal immediately during forming, and the mould removal is carried out on the fine-grained soil for 2-4 hours; the inorganic binder of fine grained soil has low strength, the inorganic binder is compacted by external force when a test piece is formed, and a skeleton structure is formed mainly by the embedding force among aggregates, so that the test piece is easy to be lost, corner fall, cracks and the like to become an invalid test piece when a stripper is used for pushing out the test piece.
At present, a common test mold is adopted when a compressive strength test piece is formed by a fine-grained soil inorganic binder stabilizing material, a reverse jack or a hydraulic press is adopted to carry out constant stress compression on the test mold, after a preset compaction effect is achieved, a formed test piece is pushed out from the test mold by using a strong force by using a stripper, and the test piece and the test mold wall have large stress, so that the test piece and the test mold wall have large friction force, the whole test piece needs to resist the friction force in the demolding process, the conditions of loss, corner falling, cracks and the like of the pushed test piece are caused, on one hand, test raw materials are wasted, on the other hand, the maintenance time is wasted, and the construction speed is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: at present, a common test mold is adopted when a fine-grained soil inorganic binder stabilizing material is used for forming a compressive strength test piece, and the test mold is forcibly withdrawn by using a stripper during demolding, so that the problems of the conditions of loss, corner drop, cracks and the like of the test piece are easily caused.
In order to solve the technical problem, the utility model provides a test mould for testing the strength of a stable material of a fine-grained soil inorganic binder, which comprises a circular bottom plate, a forming cylinder and a pressure head, wherein the circular bottom plate is provided with a forming cylinder positioning groove at the circle center of the upper surface, and the circle center of the forming cylinder positioning groove is also provided with a pressure head positioning groove; the forming cylinder comprises a cylindrical hollow cylinder consisting of a left half cylinder and a right half cylinder; the left half cylinder and the right half cylinder are provided with positioning wings at the outer sides of the contact surfaces, and the positioning wings are provided with connecting through holes at the same height; the pressure head is divided into an upper pressure head and a lower pressure head, the upper pressure head comprises a cylindrical upper pressure head body, the upper surface of the upper pressure head body is provided with a circle of annular groove concentric with the upper pressure head body, and the circle center is provided with a cylindrical upper pressure head handle with the same height as the upper pressure head body; the lower pressure head comprises a cylindrical lower pressure head body, the lower surface of the lower pressure head body is provided with a circle of annular groove concentric with the lower pressure head body, and the circle center is provided with a cylindrical lower pressure head handle higher than the lower pressure head body; the diameter of the lower pressure head handle is the same as that of the pressure head positioning groove at the circle center of the circular bottom plate; the outer diameter of the forming cylinder is the same as the diameter of the forming cylinder positioning groove on the circular bottom plate; the diameters of the upper pressing head body and the lower pressing head body are the same as the inner diameter of the forming cylinder.
In particular, the length of the lower pressure head handle extending out of the lower pressure head body is the same as the depth of the pressure head positioning groove.
Particularly, the left half cylinder is provided with a cylindrical splicing strip arranged along the height direction of the left half cylinder on the contact surface with the right half cylinder, and the right half cylinder is provided with a cylindrical splicing groove matched with the cylindrical splicing strip on the contact surface with the left half cylinder.
Particularly, the device also comprises an annular protective cylinder sleeved on the upper part and the lower part of the positioning wing, and the inner diameter of the annular protective cylinder is the same as the outer diameter of the forming cylinder.
Particularly, two handle rings are symmetrically arranged on the outer side of the circular bottom plate.
The utility model has the advantages that: non-deformable, but the rapid demoulding, and need not to use the knockout during the drawing of patterns, only need simple instruments such as adjustable spanner, the simple operation to can effectively reduce because the test piece that frictional force leads to lacks, fall the appearance of the condition such as angle, damage.
Drawings
Fig. 1 is a schematic view of the structure of the device of the present invention.
Fig. 2 is a schematic view of a circular bottom plate structure.
Fig. 3 is a schematic structural view of the forming tube.
Fig. 4 is a schematic diagram of the structure of the upper pressure head.
Fig. 5 is a schematic view of a lower press head structure.
Fig. 6 is a cross-sectional view taken along the line a-a in fig. 1.
Wherein, the round bottom plate-1; a forming cylinder positioning groove-11; a pressure head positioning groove-12; a handle ring-13; a forming cylinder-2; a left half cylinder-21; a right half-cylinder-22; a positioning wing-23; a connecting through-hole-24; an annular casing-25; a cylindrical assembly strip-26; a cylindrical assembly groove-27; an upper pressure head-3; an upper ram body-31; an upper ram handle-32; a lower pressure head-4; a lower ram body-41; a lower ram handle-42.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A test mould for testing the strength of a fine-grained soil inorganic binder stabilizing material comprises a circular base plate 1, a forming cylinder 2 and a pressure head, wherein a forming cylinder positioning groove 11 is formed in the center of the upper surface of the circular base plate 1, and a pressure head positioning groove 12 is also formed in the center of the forming cylinder positioning groove 11; the forming cylinder 2 comprises a cylindrical hollow cylinder consisting of a left half cylinder 21 and a right half cylinder 22; the left half cylinder 21 and the right half cylinder 22 are respectively provided with a positioning wing 23 at the outer side of the contact surface, and the positioning wings 23 are provided with connecting through holes 24 at the same height; the pressure head is divided into an upper pressure head 3 and a lower pressure head 4, the upper pressure head 3 comprises a cylindrical upper pressure head body 31, the upper surface of the upper pressure head body 31 is provided with a circle of annular grooves concentric with the upper pressure head body 31, and the circle center is provided with a cylindrical upper pressure head handle 32 with the same height as the upper pressure head body 31; the lower pressure head 4 comprises a cylindrical lower pressure head body 41, a circle of annular grooves concentric with the lower pressure head body 41 are formed in the lower surface of the lower pressure head body 41, and a cylindrical lower pressure head handle 42 higher than the lower pressure head body 41 is arranged at the center of the circle; the diameter of the lower pressure head handle 42 is the same as that of the pressure head positioning groove 12 at the circle center of the circular bottom plate 1; the outer diameter of the forming tube 2 is the same as the diameter of the forming tube positioning groove 11 on the circular bottom plate 1; the diameters of the upper pressure head body 31 and the lower pressure head body 41 are the same as the inner diameter of the forming cylinder 2.
The circular bottom plate 1 is made of special stainless steel with the diameter of 100mm and the height of 20mm, a forming cylinder positioning groove 11 is formed in the middle of the bottom template, the diameter of the forming cylinder positioning groove 11 is 70mm, the depth of the forming cylinder positioning groove 11 is 10mm, and the forming cylinder positioning groove is used for fixing the forming cylinder 2 so that the circular bottom plate 1 and the forming cylinder are firmly connected; and a pressure head positioning groove 12 with the diameter of 10mm and the depth of 5mm is formed in the center of the forming cylinder positioning groove 11 and used for fixing the position of the lower pressure head 4 and preventing overturning and dislocation.
The forming cylinder 2 is made of special stainless steel with the outer diameter of 70mm, the inner diameter of 50mm and the height of 130mm, the whole cylinder is cut into a left half cylinder 21 and a right half cylinder 22 from the middle, positioning wings 23 are welded and fixed on the outer sides of the left side edge and the right side edge of the left half cylinder 21, positioning wings 23 are welded and fixed on the outer sides of the left side edge and the right side edge of the right half cylinder 22, and connecting through holes 24 are formed in the same positions of the positioning wings 23 and used for bolt connection.
The upper pressure head 3 and the lower pressure head 4 are both made of cast iron with the outer diameter of 50mm and the height of 40mm, and holes with the diameter of 30mm and the depth of 30mm are formed in the pressure heads; diameter 10mm is reserved at last pressure head 3 center, and pressure head handle 32 on the cylindric of high 30mm reserves diameter 10mm at 4 centers of pressure head down, and pressure head handle 42 under the cylindric of high 35mm goes up pressure head handle 32 and is convenient for take and put and the installation of pressure head, and pressure head handle 42 is down in the pressure head positioning groove 12 on circular bottom plate 1 when being convenient for take and put and the installation, plays the effect of location, spacing, preventing the upset.
As a preferred embodiment, the lower indenter handle 42 extends out of the lower indenter body 41 by the same length as the depth of the indenter positioning groove 12.
As a preferred embodiment, the left half cylinder 21 is provided with a cylindrical split strip 26 arranged along the height direction of the left half cylinder 21 on the contact surface with the right half cylinder 22, and the right half cylinder 22 is provided with a cylindrical split groove 27 fitted with the cylindrical split strip 26 on the contact surface with the left half cylinder 21; through cylindric amalgamation strip 26 and cylindric amalgamation groove 27, can effectual sharing in the load in-process test piece give with the transverse action power of examination mould, play even load, prevent the effect of warping.
As a preferred embodiment, the device further comprises an annular protective tube 25 sleeved above and below the positioning wing 23, wherein the inner diameter of the annular protective tube 25 is the same as the outer diameter of the forming tube 2; the annular protective cylinders 25 are arranged on the upper side and the lower side of the positioning wings 23, so that the transverse stress of the test mold in the loading process can be effectively shared, and the test mold is prevented from being damaged.
As a preferred embodiment, two handle rings 13 are symmetrically arranged on the outer side of the circular bottom plate 1.
In actual use, the circular bottom plate 1 is placed on the ground, and the lower pressure head handle 42 of the lower pressure head 4 is aligned with the pressure head positioning groove 12 to be installed, so that alignment and fit are guaranteed; then, the annular protection cylinder 25 is placed on the circular bottom plate 1, the left half cylinder 21 and the right half cylinder 22 are spliced together through the cylindrical splicing strips 26 and the cylindrical splicing grooves 27, bolts penetrate through the connecting through holes 24 and are fastened through nuts, and the annular protection cylinder 25 is sleeved on the positioning wings 23; sleeving the forming cylinder 2 in the forming cylinder positioning groove 11 of the circular bottom plate 1 to wrap the lower pressing head 4; daub the thin grease of one deck inside the examination mould, the rubble is stabilized to the cement, the misce bene, divide the cubic to pack into a shaping section of thick bamboo 2, all evenly insert the reality with the tamp when packing into at every turn, it steadily presses down to the charge level to go up pressure head 3, place the device on compression testing machine, through compression testing machine at the uniform velocity with last pressure head 3 in a shaping section of thick bamboo 2, treat pressure head 3 and 2 top parallel and level back steady voltage 120 seconds of a shaping section of thick bamboo, the uninstallation, take off the examination mould, take out pressure head 3 gently, take off cyclic annular and protect a section of thick bamboo 25, demolish fastening bolt, tap into a shaping section of thick bamboo 2 upper flange with the skin hammer, make.
Claims (5)
1. A test mould for testing the strength of a fine-grained soil inorganic binder stable material is characterized by comprising a circular bottom plate (1), a forming cylinder (2) and a pressure head, wherein a forming cylinder positioning groove (11) is formed in the center of a circle on the upper surface of the circular bottom plate (1), and a pressure head positioning groove (12) is further formed in the center of the circle of the forming cylinder positioning groove (11); the forming cylinder (2) comprises a cylindrical hollow cylinder consisting of a left half cylinder (21) and a right half cylinder (22); the outer sides of the contact surfaces of the left half cylinder (21) and the right half cylinder (22) are both provided with positioning wings (23), and the positioning wings (23) are provided with connecting through holes (24) at the same height; the pressure head is divided into an upper pressure head (3) and a lower pressure head (4), the upper pressure head (3) comprises a cylindrical upper pressure head body (31), the upper surface of the upper pressure head body (31) is provided with a circle of annular groove concentric with the upper pressure head body (31), and the circle center is provided with a cylindrical upper pressure head handle (32) with the same height as the upper pressure head body (31); the lower pressure head (4) comprises a cylindrical lower pressure head body (41), the lower surface of the lower pressure head body (41) is provided with a circle of annular groove concentric with the lower pressure head body (41), and the circle center is provided with a columnar lower pressure head handle (42) higher than the lower pressure head body (41); the diameter of the lower pressure head handle (42) is the same as that of the pressure head positioning groove (12) at the circle center of the circular bottom plate (1); the outer diameter of the forming cylinder (2) is the same as the diameter of the forming cylinder positioning groove (11) on the circular bottom plate (1); the diameters of the upper pressure head body (31) and the lower pressure head body (41) are the same as the inner diameter of the forming cylinder (2).
2. The fine grained soil inorganic binder stabilized material strength test mold according to claim 1, wherein the length of the lower pressure head handle (42) extending out of the lower pressure head body (41) is the same as the depth of the pressure head positioning groove (12).
3. The test mould for testing the strength of the fine grained soil inorganic binder stabilizing material according to claim 1, wherein the left half cylinder (21) is provided with a cylindrical split strip (26) arranged along the height direction of the left half cylinder (21) on the contact surface with the right half cylinder (22), and the right half cylinder (22) is provided with a cylindrical split groove (27) matched with the cylindrical split strip (26) on the contact surface with the left half cylinder (21).
4. The test mould for testing the strength of the fine-grained inorganic binder stabilizing material according to claim 1, further comprising an annular protective tube (25) sleeved above and below the positioning wing (23), wherein the inner diameter of the annular protective tube (25) is the same as the outer diameter of the forming tube (2).
5. The test mould for testing the strength of the fine-grained soil inorganic binder stabilizing material according to claim 1, wherein two handle rings (13) are symmetrically arranged on the outer side of the circular bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020191723.5U CN211784711U (en) | 2020-02-20 | 2020-02-20 | Fine grained soil inorganic binder stable material strength test mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020191723.5U CN211784711U (en) | 2020-02-20 | 2020-02-20 | Fine grained soil inorganic binder stable material strength test mould |
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| CN211784711U true CN211784711U (en) | 2020-10-27 |
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| CN202020191723.5U Active CN211784711U (en) | 2020-02-20 | 2020-02-20 | Fine grained soil inorganic binder stable material strength test mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128253A (en) * | 2022-08-31 | 2022-09-30 | 矿冶科技集团有限公司 | Segregation degree evaluation method and cementitious filler segregation degree detection test mold |
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2020
- 2020-02-20 CN CN202020191723.5U patent/CN211784711U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128253A (en) * | 2022-08-31 | 2022-09-30 | 矿冶科技集团有限公司 | Segregation degree evaluation method and cementitious filler segregation degree detection test mold |
| CN115128253B (en) * | 2022-08-31 | 2022-11-25 | 矿冶科技集团有限公司 | Segregation degree evaluation method and segregation degree detection test mold for cemented filling body |
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