CN210571878U - Infiltration unit of concrete test block and tester with same - Google Patents
Infiltration unit of concrete test block and tester with same Download PDFInfo
- Publication number
- CN210571878U CN210571878U CN201921440795.2U CN201921440795U CN210571878U CN 210571878 U CN210571878 U CN 210571878U CN 201921440795 U CN201921440795 U CN 201921440795U CN 210571878 U CN210571878 U CN 210571878U
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- atmoseal
- concrete test
- test block
- infiltration unit
- rubber oil
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Abstract
The utility model provides a infiltration unit of concrete test block, including atmoseal base, atmoseal middle section and atmoseal top cap, atmoseal base opens the infiltration unit air inlet, atmoseal middle section has registrate portion and processes steady voltage air inlet and the annular that communicates, rubber oil bag registrate is on registrate portion, atmoseal top cap opens at the top and sinks the groove, atmoseal top cap opens the infiltration unit gas outlet at the lateral part, perspective panel installs and seals in sinking the groove department, place the middle part of rubber oil bag in after the concrete test piece outside is sheatheed in the silica gel cover, after steady voltage air inlet admits air, form a water bath intermediate layer between concrete test piece and perspective panel; the utility model also provides a tester of the concrete test block, which comprises a penetration unit; by arranging the water bath interlayer and the perspective panel, the circumferential surface of the concrete test block can be ensured to realize full sealing by observing the bubbling condition; meanwhile, the infiltration unit is arranged in a water tank of the tester, so that the air tightness of the infiltration unit is also ensured.
Description
Technical Field
The utility model relates to a concrete gas permeability survey technical field, concretely relates to infiltration unit of concrete test block and apparatus that has this infiltration unit.
Background
Concrete, also called concrete, is a porous material for building, the existence of pores strongly influences the properties of strength, toughness and the like, and the pore structure inside the concrete is more closely related to the performance of durability such as permeability, air tightness, corrosion resistance and the like. In evaluating the performance of concrete, permeability is an important index, which refers to the difficulty of gas, liquid or ion to permeate, diffuse or migrate in the concrete under the action of pressure, chemical potential or electric field. The concrete permeability and the durability have a close relationship, the research on the concrete permeability is carried out and is undoubtedly an essential component in the durability research, and the concrete permeability and the durability evaluation and the design of the high-durability concrete have important practical significance. Permeability is one of the main indicators of concrete durability, and currently, 2 types of permeation media, water and gas, are mainly used in the determination of the performance. When water is used as a permeation medium, the permeation process is difficult to reach a stable state due to continuous hydration of cement, migration of substances, change of a capillary structure and the like, so that the permeation coefficient of water is difficult to measure accurately, and research is gradually shifted to a test method using gas as the permeation medium. The utility model discloses a utility model with the grant number of CN201583477U discloses a concrete gas permeability test system, the gas permeation device among the technical scheme of this patent can form steady voltage at the periphery of concrete test piece, it is accurate to measure, relevant national standard (GB36900.2-2018) has now been brought into, in the measurement process of gas permeability, whether the periphery of concrete test piece (being the cake form) realizes complete sealed very crucial, if the periphery of concrete test piece is sealed incompletely, gaseous part is spilled over between concrete test piece and the rubber sleeve rather than overflowing in the hole of concrete test piece itself, the measuring result will produce very big deviation, and in the experiment, we can't guarantee that the concrete test piece has realized complete sealed.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned problem, the utility model provides a test element of concrete test block and have this test element's apparatus.
In order to achieve the above object, in one aspect, the present invention provides a penetration unit of a concrete test block, comprising a gas seal base, a gas seal middle section and a gas seal top cover fixedly connected by a first screw, wherein the middle part of the gas seal base is provided with a penetration unit air inlet, the gas seal middle section is annular, the inner wall surface of the gas seal middle section protrudes inwards to form a nesting part, an annular groove is processed on the nesting part, the lateral part of the gas seal middle section is further provided with a pressure stabilizing air inlet, the annular groove is communicated with the pressure stabilizing air inlet, a rubber oil bag is sleeved on the nesting part in an up-and-down clamping manner, the rubber oil bag makes the connection between the gas seal middle section and the gas seal base as well as the gas seal top cover airtight, under the locking action of the first screw, the rubber oil bag and the gas seal middle section reach airtight, the gas seal top cover is provided with a sinking groove at the top, the gas seal top cover is provided with a penetration unit air outlet at the lateral part, the perspective panel is installed at the sinking groove through a second screw and is provided with an O-shaped sealing ring, a silicone sleeve is sleeved on the outer side of a round cake-shaped concrete test piece and then is arranged in the middle of the rubber oil bag, and when the pressure stabilizing air inlet admits air, a water bath interlayer is formed between the concrete test piece and the perspective panel;
when the concrete test block is placed in the middle of the rubber oil bag for permeability experiment, the bubbling condition of the water bath interlayer can be observed by the perspective panel, and whether the concrete test block realizes complete sealing or not is obtained.
Preferably, a bolt is screwed on the air seal base, and the air seal base forms a conical surface from the upper part of the air inlet of the infiltration unit to two sides;
in the technical scheme, the bolts on the air seal base are used for heightening and supporting the penetration unit, and the conical surface can enable high-pressure gas at the air inlet of the penetration unit to be diffused and uniformly distributed on the concrete test block.
Preferably, the rubber oil bag is a single-layer rubber skin;
in the technical scheme, the single-layer rubber oil bag replaces the inflatable rubber bag in the prior art, and has the advantages of simple processing, low cost, reliable use and long service life.
Preferably, the air seal top cover is also provided with an eyebolt;
in the technical scheme, the lifting bolt is convenient for hoisting the penetration unit, and labor is saved in assembly.
Preferably, spring washers are arranged at the first screw and the second screw;
in the technical scheme, the spring washer has a backstop effect, so that the connection of the air seal base, the air seal middle section and the air seal top cover is very tight, the connection of the perspective panel and the air seal top cover is tight, and the air tightness of the permeation unit is good.
Preferably, the height values of the concrete test piece, the silica gel sleeve and the rubber oil bag are matched, and after the silica gel sleeve is sleeved on the concrete test piece, the outer diameter of the concrete test piece is smaller than the inner diameter of the rubber oil bag;
in the technical scheme, after the concrete test piece is sleeved with the silica gel sleeve, the outer diameter of the concrete test piece is smaller than the inner diameter of the rubber oil bag, so that the concrete test piece can be conveniently installed in the middle of the rubber oil bag.
In another aspect, the present invention provides a concrete test block tester, which comprises a penetration unit;
when the permeability is measured by the measuring instrument comprising the penetration unit, the perspective panel of the penetration unit can be observed in real time, and the circumferential surface of the concrete test block is always in full sealing.
Preferably, the number of the infiltration units is three, and the infiltration units are completely immersed in a water tank of the measuring instrument when in work;
in the technical scheme, the tester can test three concrete test blocks simultaneously, the efficiency is high, the data has comparability, and meanwhile, the permeation unit is arranged in a water bath environment, and the air tightness problem among the air seal base, the air seal middle section and the air seal top cover and the air tightness problem of connection between the perspective panel and the air seal top cover can also be eliminated through air bubbles.
The utility model discloses beneficial effect for prior art does: the technical scheme of the utility model can ensure the circumferential surface of the concrete test block to realize full sealing by arranging the water bath interlayer and the perspective panel and observing the bubbling condition when the permeability test of the concrete test block is carried out in the prior art; meanwhile, the infiltration unit is arranged in a water tank of the tester, so that the air tightness of the infiltration unit is also ensured.
Drawings
Fig. 1 is a front view of a permeation unit according to the present invention;
fig. 2 is a top view of a permeation unit according to the present invention;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 location 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3
FIG. 4 is a cross-sectional view taken at location B-B of FIG. 2;
fig. 5 is a perspective view of a permeation unit according to the present invention;
fig. 6 is a perspective view of the measuring instrument according to the present invention.
In the figure: 1. an eye bolt; 2. a second screw; 3. a see-through panel; 4. an O-shaped sealing ring; 5. a gas seal top cover; 51. a permeate unit gas outlet; 6. water bath interlayer; 7. a rubber oil bladder; 8. a silica gel sleeve; 9. a gas seal middle section; 91. a nesting portion; 911. a ring groove; 92. a pressure stabilizing air inlet; 10. a concrete test piece; 11. a gas seal base; 111. a permeate cell gas inlet; 12. a first screw; 13. a bolt; 14. a water tank.
Detailed Description
As shown in fig. 1, fig. 3 and fig. 4, an embodiment of the present invention provides a test unit for a concrete test block, which includes an air seal base 11, an air seal middle section 9 and an air seal top cover 5, wherein the air seal base 11 is fixedly connected with a first screw 12, a penetration unit air inlet 111 is opened in the middle of the air seal base 11, a bolt 13 is screwed on the air seal base 11, and the air seal base 11 forms a conical surface from the upper portion of the penetration unit air inlet 111 to both sides; the gas seal middle section 9 is annular, the inner wall surface of the gas seal middle section is partially protruded inwards to form a sleeving part 91, an annular groove 911 is processed on the sleeving part 91, a pressure stabilizing air inlet 92 is further formed in the side part of the gas seal middle section 9, the annular groove 911 is communicated with the pressure stabilizing air inlet 92, the rubber oil bag 7 is single-layer rubber skin, the rubber oil bag 7 is sleeved on the sleeving part 91 in an up-and-down clamping mode, the rubber oil bag 7 enables the connection of the gas seal middle section 9 with the gas seal base 11 and the gas seal top cover 5 to be airtight, under the locking action of a first screw 12, the rubber oil bag 7 and the gas seal middle section 9 are airtight, a lifting bolt 1 is arranged on the gas seal top cover 5, a sinking groove is formed in the top part of the gas seal top cover 5, a perspective panel 3 is arranged at the sinking groove through a second screw 2 and is provided with an O-shaped sealing ring 4, a round cake-shaped test piece 10 is sleeved with an outer side sleeve 8 and then is arranged, after the pressure stabilizing air inlet 92 admits air, a water bath interlayer 6 is formed between the concrete test piece 10 and the perspective panel 3; spring washers are arranged at the first screw 12 and the second screw 2; the height values of the concrete test piece 10, the silica gel sleeve 8 and the rubber oil bag 7 are matched, and after the silica gel sleeve 8 is sleeved on the concrete test piece 10, the outer diameter is smaller than the inner diameter of the rubber oil bag 7.
As shown in fig. 6, another aspect of the present invention provides a concrete test block measuring apparatus, which includes three infiltration units, wherein the infiltration units are completely immersed in a water tank of the measuring apparatus during operation.
The technical scheme of the utility model can ensure the circumferential surface of the concrete test block to realize full sealing by arranging the water bath interlayer and the perspective panel and observing the bubbling condition when the permeability test of the concrete test block is carried out in the prior art; meanwhile, the infiltration unit is arranged in a water tank of the tester, so that the air tightness of the infiltration unit is also ensured.
When in specific use, the utility model is described with the attached drawings for the convenience of understanding;
referring to fig. 3 and 4, the rubber oil bag is sleeved on the sleeved portion of the middle section of the air seal, the rubber oil bag is tightly attached to the inner wall surface of the sleeved portion due to elastic contraction, the air seal base is fixedly connected with the middle section of the air seal by a first screw, the rubber oil bag and the air seal base form a cavity for storing a concrete test block together, a layer of silica gel sleeve is sleeved on the outer side of the round cake-shaped concrete test block, the round cake-shaped concrete test block is arranged in the cavity in a clearance fit mode, then the air seal top cover is fixedly connected with the middle section of the air seal by the first screw, the connection position of the middle section of the air seal top cover and the air seal base is airtight by the rubber oil bag, a pressure stabilizing air inlet is firstly filled with compressed air, the rubber oil bag tightly presses the silica gel sleeve at the annular groove to realize the annular seal of the concrete test block, then, a proper amount of clear water is added into the water bath interlayer, the panel is locked on the air seal top cover by a, then, the gas permeability test can be carried out, gas is fed from the gas inlet of the permeation unit, after the gas is diffused by the conical surface, the gas penetrates through the pores of the concrete test block and is discharged from the gas outlet of the permeation unit to the flowmeter, and the data measurement and calculation of the gas permeability are carried out;
if not totally sealed on the circumference of concrete test block, can see the bubble on the circumference on water bath layer and emerge, if the airtight poor of atmoseal top cap, atmoseal middle section, atmoseal base, the infiltration unit can see that infiltration unit's surface bubble spills over when the basin, through the direct observation of bubble, can ensure that the gas permeability is experimental to be accomplished under the high-tightness condition, and the test result is accurate reliable.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a infiltration unit of concrete test block which characterized in that: include by first screw (12) fixed connection's atmoseal base (11), atmoseal middle section (9) and atmoseal top cap (5), wherein, open at the middle part of atmoseal base (11) has infiltration unit air inlet (111), atmoseal middle section (9) are cyclic annular, and its inner wall face forms registrated portion (91) towards the inside part arch, processing has annular (911) on registrated portion (91), steady pressure air inlet (92) have still been opened at the lateral part on atmoseal middle section (9), annular (911) with steady pressure air inlet (92) intercommunication, rubber oil pocket (7) from top to bottom through the mode cover of block on registrated portion (91), rubber oil pocket (7) make atmoseal middle section (9) with atmoseal base (11), the connection of atmoseal top cap (5) is airtight, under the locking effect of first screw (12), rubber oil pocket (7) with atmoseal middle section (9) reach airtight, open at the top in atmoseal top cap (5) has heavy groove, atmoseal top cap (5) are opened at the lateral part has infiltration unit gas outlet (51), and install through second screw (2) in heavy groove department and being furnished with O type sealing washer (4), place in behind silica gel cover (8) is sheathe in the concrete test piece (10) outside of cake form the middle part of rubber oil pocket (7), work as steady pressure air inlet (92) admit air the back concrete test piece (10) with form a water bath intermediate layer (6) between perspective panel (3).
2. The infiltration unit of concrete test block of claim 1, characterized in that: bolts (13) are screwed on the air seal base (11), and conical surfaces are formed on the air seal base (11) from the upper part of the air inlet (111) of the infiltration unit to two sides.
3. The infiltration unit of concrete test block of claim 1, characterized in that: the rubber oil bag (7) is a single-layer rubber skin.
4. The infiltration unit of concrete test block of claim 1, characterized in that: and the gas seal top cover (5) is also provided with an eyebolt (1).
5. The infiltration unit of concrete test block of claim 1, characterized in that: spring washers are arranged at the first screw (12) and the second screw (2).
6. The infiltration unit of concrete test block of claim 1, characterized in that: the height values of the concrete test piece (10), the silica gel sleeve (8) and the rubber oil bag (7) are matched, and after the concrete test piece (10) is sleeved with the silica gel sleeve (8), the outer diameter is smaller than the inner diameter of the rubber oil bag (7).
7. The utility model provides a determinator of concrete test block which characterized in that: having a permeation unit as claimed in any one of claims 1 to 6.
8. The meter of claim 7, wherein: the number of the infiltration units is three, and the infiltration units are completely immersed in a water tank (14) of the measuring instrument when in work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440795.2U CN210571878U (en) | 2019-08-30 | 2019-08-30 | Infiltration unit of concrete test block and tester with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440795.2U CN210571878U (en) | 2019-08-30 | 2019-08-30 | Infiltration unit of concrete test block and tester with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210571878U true CN210571878U (en) | 2020-05-19 |
Family
ID=70642059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921440795.2U Withdrawn - After Issue CN210571878U (en) | 2019-08-30 | 2019-08-30 | Infiltration unit of concrete test block and tester with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210571878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441217A (en) * | 2019-08-30 | 2019-11-12 | 舟山市博远科技开发有限公司 | A kind of permeation unit of concrete test block and analyzer with the permeation unit |
-
2019
- 2019-08-30 CN CN201921440795.2U patent/CN210571878U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441217A (en) * | 2019-08-30 | 2019-11-12 | 舟山市博远科技开发有限公司 | A kind of permeation unit of concrete test block and analyzer with the permeation unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20230606 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20230606 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |