CN113959921A - Device and method for testing impermeability and durability of precast concrete joint - Google Patents
Device and method for testing impermeability and durability of precast concrete joint Download PDFInfo
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- CN113959921A CN113959921A CN202111117043.4A CN202111117043A CN113959921A CN 113959921 A CN113959921 A CN 113959921A CN 202111117043 A CN202111117043 A CN 202111117043A CN 113959921 A CN113959921 A CN 113959921A
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- 238000012360 testing method Methods 0.000 title claims abstract description 225
- 239000011178 precast concrete Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- 238000003825 pressing Methods 0.000 claims description 29
- 239000004567 concrete Substances 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 10
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000012188 paraffin wax Substances 0.000 claims description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 9
- 235000017491 Bambusa tulda Nutrition 0.000 description 9
- 241001330002 Bambuseae Species 0.000 description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 9
- 239000011425 bamboo Substances 0.000 description 9
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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Abstract
The utility model relates to a detection area especially relates to an impervious durability testing arrangement of precast concrete seam and method, and its technical scheme is, including organism, a plurality of setting on the organism and be used for placing the specimen cylinder of new and old test block, a plurality of locating component that are used for going on fixing a position new and old test block and the fixed subassembly that is used for fixed specimen cylinder, be equipped with the spacing subassembly that is used for fixing a position new and old test block on the specimen cylinder, spacing subassembly includes that a plurality of spacing pipes that set up along specimen cylinder axis go on and pegs graft the locating piece at spacing pipe tip. This application has the detection precision that improves the impervious durability of precast concrete joint, is convenient for carry out the effect that detects to the precast concrete joint.
Description
Technical Field
The application relates to the field of detection, in particular to a device and a method for testing impermeability and durability of a precast concrete joint.
Background
With the progress of concrete technology, the variable factors of concrete preparation are more and more. Under the action of various admixtures and high-performance water reducing agents, the complexity of the durability factor of the concrete is increased. In the precast concrete field, the durability of seam influences the whole operation and the life-span of building to a great extent, for example in the precast assembled bridge construction process, if the seam is not compact, can reduce the intensity of prestressing steel among the precast bridge, influences the building quality.
In the prior art, a concrete impermeability instrument is generally used for detecting concrete, a test piece is placed on a concrete test mold of the concrete impermeability instrument for pouring and curing, and then the manufactured test piece is placed on the concrete impermeability instrument for detection. But the precast concrete seam is the new old concrete usually and connects, and when new old concrete test block was placed in the concrete examination mould, the seam can closely laminate to the actual impervious durability at seam position can not comparatively accurate detection.
Disclosure of Invention
In order to improve the detection precision of the impermeability and durability of the precast concrete joint and facilitate the detection of the precast concrete joint, the application provides a device and a method for testing the impermeability and durability of the precast concrete joint.
On the one hand, the application provides a pair of impervious durability testing arrangement of precast concrete joint adopts following technical scheme:
the utility model provides an impervious durability testing arrangement of precast concrete joint, includes organism, a plurality of setting and is used for placing the specimen cylinder of new and old test block, a plurality of locating component that are used for advancing line location to new and old test block and the fixed subassembly that is used for fixed specimen cylinder on the organism, be equipped with the spacing subassembly that is used for fixing a position new and old test block on the specimen cylinder, spacing subassembly includes a plurality of spacing pipes that carry out the setting along the specimen cylinder axis and pegs graft the locating piece at spacing pipe tip.
Through adopting above-mentioned technical scheme, the organism is convenient for install the specimen cylinder, locating component and fixed subassembly, the specimen cylinder is convenient for load new and old test block, locating component is convenient for improve the stability of new and old test block, fixed subassembly is convenient for improve the stability of specimen cylinder, spacing subassembly is convenient for fix a position new and old test block, spacing pipe is used for pouring the concrete to new and old test block intermediate position, the new and old test block of simulation is connected, improve the connection precision of seam, the locating piece is convenient for fix a position spacing pipe, improve the stability of spacing pipe.
Preferably, the limiting pipe is provided with a plurality of pouring holes along the length direction.
Through adopting above-mentioned technical scheme, pour the hole and be convenient for spacing pipe and pour concrete mortar to between new test block and the old test block, be convenient for connect new and old test block, improve the stability of seam.
Preferably, the fixed subassembly is including setting up the fixing base on the organism and a plurality of dead levers of setting at the fixing base top surface, the dead lever evenly sets up along the fixing base periphery, seted up the hole of permeating water on the fixing base, the top surface of fixing base is equipped with the elasticity sealing washer, be equipped with on the organism with the water pipe of the hole intercommunication of permeating water, be equipped with the water pump on the water pipe, the locating piece is located the fixing base.
Through adopting above-mentioned technical scheme, the fixing base is convenient for improve the stability of sample section of thick bamboo, and the dead lever is convenient for further fix sample section of thick bamboo, and the dead lever evenly sets up in the periphery of fixing base, is convenient for improve the stability of sample section of thick bamboo, and the hole of permeating water is convenient for the water and gets into in the fixing base, and the sample piece of being convenient for carries out impervious durability and detects, and the water pipe is convenient for carry the water, and the water pump is convenient for carry out the pressure boost to the water.
Preferably, the sample cylinder is provided with a plurality of fixing blocks corresponding to the fixing rods, and the fixing blocks are provided with positioning holes for inserting the fixing rods.
Through adopting above-mentioned technical scheme, the fixed block is convenient for fix with the dead lever, and the locating hole is convenient for the dead lever and is pegged graft, improves the stability of sample section of thick bamboo.
Preferably, a through hole is formed in the side wall of the fixing rod, a pressing rod located in the through hole is arranged on the fixing rod, and the width of the pressing rod is gradually reduced from the center to two sides.
Through adopting above-mentioned technical scheme, the through-hole is convenient for support the depression bar and advances to peg graft, supports the stability that the depression bar is not convenient for improve the dead lever, is convenient for improve the stability of sample section of thick bamboo, supports the width of depression bar and is dwindled to both sides by the center gradually, is convenient for extrude sample section of thick bamboo and fixing base gradually, improves the stability of sample section of thick bamboo.
Preferably, the positioning assembly comprises a pushing cylinder arranged on the sample cylinder, a connecting rod arranged at the piston end of the pushing cylinder and a positioning rod arranged at the end part of the connecting rod, and the connecting rod is parallel to the top surface of the sample cylinder.
Through adopting above-mentioned technical scheme, promote the cylinder and be convenient for control connecting rod and reciprocate, the locating lever is convenient for fix a position the test block, improves the stability of new and old test block.
Preferably, the locating lever is perpendicular to the connecting rod, one end of the locating lever is fixed to the connecting rod, and the other end of the locating lever is provided with a pressing block.
By adopting the technical scheme, the pressing block is convenient for fixing the new test block and the old test block, and the stability of the test blocks is improved.
Preferably, the piston end sleeve of the pushing cylinder is provided with a sleeve, the outer side wall of the sleeve is provided with a rotating groove along the periphery, and the end part of the connecting rod is provided with a rotating block located in the rotating groove.
Through adopting above-mentioned technical scheme, the connecting rod rotates through the turning block, is convenient for adjust the position of briquetting, when needing to compress tightly new test block and old test block, and the connecting rod rotates, will support the top that the briquetting removed new test block or old test block, and the rethread pushes away a plurality of briquetting of actuating cylinder drive and fixes new test block or old test block.
Preferably, the limiting assembly further comprises an elastic panel, the elastic panel is located between the two limiting pipes, a limiting groove is formed in each limiting pipe, and a limiting block matched with the limiting groove is arranged on the elastic panel.
Through adopting above-mentioned technical scheme, the elastic panel is convenient for place between new test block and old test block, improves the stability of new test block and old test block seam, then pours the concrete through spacing pipe, and the elastic panel passes through spacing groove and stopper and installs on spacing pipe, when spacing pipe concreting, takes out the elastic panel, the spacing pipe concreting concrete mortar of being convenient for.
On the other hand, the application provides a precast concrete seam impermeability and durability test device and method, adopts following technical scheme:
step1, preparing a test block: respectively manufacturing a plurality of new test blocks and old test blocks;
step2, test block maintenance: conveying the new test block and the old test block into a curing room for curing, taking out the cured new test block and the cured old test block, and wiping the surfaces of the new test block and the old test block;
step3, test piece integration: placing a new test block and an old test block into a sample cylinder, wherein the new test block and the old test block are respectively positioned at two sides of an elastic panel, and the new test block and the old test block are pressed and fixed through a plurality of pressing blocks; after the new test block and the old test block are fixed, the elastic panel is taken out, concrete mortar is poured between the new test block and the old test block through the limiting pipe, the new test block and the old test block are integrated, and after the joint is solidified and formed, the integrated test block is formed;
step4, sealing test block: coating a layer of molten paraffin on the side wall of the integrated test block, adding a small amount of rosin into the paraffin, taking out the limiting tube and the elastic panel in the sample cylinder, and pressing the integrated test block into the sample cylinder preheated by an oven or an electric furnace by using a pressurizer;
step5, positioning test block: starting a pushing cylinder, and respectively abutting a new test block and an old test block in the integrated test block by using a pressing block, so that the stability of the integrated test block is improved;
step6, impermeability test: starting a water pump, conveying water to a fixed seat, enabling the water to enter a sample cylinder through a water permeable hole, observing the water seepage condition of the end faces of the integrated test blocks at any time in the pressure stabilizing process, stopping the test of the integrated test blocks and recording time when water seepage occurs on the end face of one integrated test block, and taking the height of the integrated test block as the water seepage height of the integrated test block; for the condition that the end face of the integrated test block has no water seepage, stopping the test 24 hours after the test, and taking out the integrated test block in time; during the test, when water was found to seep out from the periphery of the test block, sealing was performed again according to Step 4.
Through adopting above-mentioned technical scheme, the elastic panel is convenient for improve the stability of new test block and old test block, and the briquetting is convenient for carry out the mortgage to new test block and old test block, improves the detection precision of the impervious durability of precast concrete seam.
In conclusion, the positioning assembly is convenient for improving the stability of the test block, the fixing assembly is convenient for improving the stability of the test cylinder, the pressing block is used for fixing the new test block and the old test block, and the accuracy for detecting the impermeability and durability of the concrete joint is convenient to improve.
Drawings
FIG. 1 is a first general structural diagram of the present application;
FIG. 2 is a second overall structural schematic of the present application;
FIG. 3 is a cross-sectional view of FIG. 1;
fig. 4 is a schematic structural view of the fixing assembly, the limiting assembly and the sample cartridge of the present application.
Description of reference numerals: 1. a body; 2. a sample cartridge; 21. a fixed block; 211. positioning holes; 3. a positioning assembly; 31. a push cylinder; 32. a connecting rod; 33. positioning a rod; 331. a pressing block; 4. a fixing assembly; 41. a fixed seat; 411. water permeable holes; 42. fixing the rod; 421. a through hole; 5. a limiting component; 51. a limiting pipe; 511. pouring holes; 512. a limiting groove; 52. positioning blocks; 53. an elastic panel; 531. a limiting block; 6. an elastic sealing ring; 7. a water pipe; 8. a water pump; 9. a pressing rod; 10. a sleeve; 11. a rotating groove; 12. and (6) rotating the block.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses impervious durability testing arrangement of precast concrete joint. Referring to fig. 1 and 2, the test apparatus comprises a machine body 1, a plurality of fixing assemblies 4 fixed on the machine body 1, a sample tube 2 arranged on the fixing assemblies 4, and a plurality of positioning assemblies 3 for positioning new and old test blocks. The sample cylinder 2 can be cylindrical or square, the cylindrical sample cylinder 2 can reduce the contact area of the sample block and the sample cylinder 2, and the square sample cylinder 2 is convenient for placing a new sample block and an old sample block. The fixing assembly 4 comprises a fixing seat 41 fixed on the machine body 1 and a plurality of fixing rods 42 arranged on the top surface of the fixing seat 41, the fixing rods 42 are uniformly arranged along the periphery of the fixing seat 41, and fixing blocks 21 corresponding to the fixing rods 42 are fixed on the side wall of the sample cylinder 2.
Referring to fig. 3 and 4, a positioning hole 211 is formed on the top surface of the fixing block 21, and the fixing rod 42 is inserted into the positioning hole 211. A through hole 421 perpendicular to the central axis of the positioning hole 211 is formed in the fixing rod 42, a pressing rod 9 is arranged in the through hole 421, the width of the pressing rod 9 is gradually reduced from the center to two ends, and the pressing rod 9 is inserted into the through hole 421. When the pressing rod 9 is gradually inserted into the through hole 421, the fixing block 21 is pressed down, so that the sample cylinder 2 is more attached to the fixing seat 41. An elastic sealing ring 6 with the same shape as the bottom surface of the sample tube 2 is arranged on the top surface of the fixed seat 41, and the elastic sealing ring 6 improves the sealing property between the sample tube 2 and the fixed seat 41.
Referring to fig. 4, a plurality of water pipes 7 are arranged on the machine body 1, a water pump 8 for controlling the flow rate of water in the water pipes 7 is fixed on the machine body 1, a water permeable hole 411 communicated with the water pipe 7 is formed in the fixing seat 41, and the water pipe 7 conveys water to the fixing seat 41 through the water pump 8.
Referring to fig. 3 and 4, the positioning assembly 3 includes a plurality of pushing cylinders 31 fixed on the side wall of the sample tube 2, a connecting rod 32 with one end disposed at the piston end of the pushing cylinder 31, and a positioning rod 33 fixedly connected with the other end of the connecting rod 32, the connecting rod 32 is parallel to the top surface of the sample tube 2, the positioning rod 33 is perpendicular to the top surface of the sample tube 2, and a pressing block 331 is fixed at the lower end of the positioning rod 33. The pressing block 331 presses the new test block or the old test block, so that the stability of the new test block and the old test block is improved, and the problem that the new test block and the old test block are extruded towards the middle to influence the detection accuracy of the joint is avoided.
The piston end of the pushing cylinder 31 is fixed with a sleeve 10, the side wall of the sleeve 10 is provided with a rotating groove 11, the rotating groove 11 is in a circular ring shape, a rotating block 12 is fixed on the connecting rod 32, the rotating block 12 is located in the rotating groove 11, and the connecting rod 32 rotates through the rotating block 12.
Referring to fig. 4, the limiting assembly 5 includes a plurality of limiting tubes 51, a positioning block 52 fixed on the fixing base 41 and used for positioning the limiting tubes 51, and an elastic panel 53, wherein the limiting tubes 51 are provided with a plurality of pouring holes 511 used for pouring concrete along the length direction. This application sets up two spacing pipes 51 on a sample section of thick bamboo 2, and two spacing pipes 51 are located the both ends of sample section of thick bamboo 2 axis, and elastic panel 53 is located between two spacing pipes 51. The elastic panel 53 is fixed with a limiting block 531 at two sides contacting with the limiting pipe 51, and the side wall of the limiting pipe 51 is provided with a limiting groove 512.
The implementation principle of the impervious durability testing arrangement of precast concrete joint of this application embodiment is: the elastic panel 53 divides the sample cartridge 2 into two loading spaces in which a new test block and an old test block are placed, respectively. After the new test block and the old test block are placed, the pushing cylinder 31 is started, the pushing cylinder 31 pushes the abutting rod 9 to abut against the new test block and the old test block, and the stability of the new test block and the old test block is improved. The elastic panel 53 is taken out, the limiting pipe 51 positions the new test block and the old test block, meanwhile, the limiting pipe 51 pours concrete between the new test block and the old test block through the pouring hole 511, and the stability of the joint of the test blocks is improved. After the joint is solidified, the limiting pipe 51 is drawn out, and meanwhile concrete mortar is poured at the position where the limiting pipe 51 is placed, so that the integrity of the joint is improved.
The embodiment of the application also provides a device and a method for testing the impermeability and durability of the precast concrete joint, wherein Step1 is used for manufacturing a test block: making a plurality of new test blocks and old test blocks;
step2, test block maintenance: conveying the new test block and the old test block into a curing room for curing, taking out the cured new test block and the cured old test block, and wiping the surfaces of the new test block and the old test block;
step3, test piece integration: placing a new test block and an old test block into the sample cylinder 2, wherein the new test block and the old test block are respectively positioned at two sides of the elastic panel 53, after the new test block and the old test block are installed, starting the pushing cylinder 31, respectively pressing the new test block and the old test block by using a plurality of pressing blocks 331, taking out the elastic panel 53, pouring concrete mortar between the new test block and the old test block through the limiting pipe 51, integrating the new test block and the old test block, and waiting for the joint to be solidified and molded to form an integrated test block;
step4, sealing test block: smearing a layer of molten paraffin on the side walls of a new test block and an old test block, adding a small amount of rosin into the paraffin, taking out a limiting tube 51 and an elastic panel 53 in a sample cylinder 2, and pressing the integrated test block into the sample cylinder 2 preheated by an oven or an electric furnace by using a pressurizer;
step5, positioning test block: the pushing cylinder 31 is opened, the pressing block 331 is used for respectively pressing the new test block part and the old test block part of the integrated test block, the stability of the integrated test block is improved, meanwhile, the pressing block 331 cannot cover the top surface of the integrated test block, and the tester can conveniently observe the state of the integrated test block.
Step6, impermeability test: the water pump 8 is started, the water body is conveyed to the fixing seat 41 and enters the sample cylinder 2 through the water permeable holes 411, the water seepage situation of the end faces of the integrated test blocks is observed at any time in the pressure stabilizing process, when water seepage occurs on the end face of one integrated test block, the test of the integrated test block is stopped, the time is recorded, and the height of the integrated test block is used as the water seepage height of the integrated test block. And for the condition that the end face of the integrated test block has no water seepage, stopping the test 24 hours after the test, and taking out the test block in time. During the test, when water was found to seep out from the periphery of the test coupon, the test coupon was sealed again according to Step 4.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a precast concrete joint impermeability durability testing arrangement which characterized in that: including organism (1), a plurality of setting on organism (1) and be used for placing specimen cylinder (2) of new and old test block, a plurality of locating component (3) that are used for going on fixing a position new and old test block and fixed subassembly (4) that are used for fixed specimen cylinder (2), be equipped with spacing subassembly (5) that are used for fixing a position new and old test block on specimen cylinder (2), spacing subassembly (5) include a plurality of spacing pipes (51) that set up along specimen cylinder (2) axis and peg graft locating piece (52) at spacing pipe (51) tip.
2. The precast concrete joint impermeability and durability test apparatus according to claim 1, wherein: the limiting pipe (51) is provided with a plurality of pouring holes (511) along the length direction.
3. The precast concrete joint impermeability and durability test apparatus according to claim 1, wherein: fixed subassembly (4) are including setting up fixing base (41) and a plurality of dead lever (42) of setting at fixing base (41) top surface on organism (1), dead lever (42) evenly set up along fixing base (41) periphery, set up on fixing base (41) and permeate water hole (411), the top surface of fixing base (41) is equipped with elastic seal circle (6), be equipped with on organism (1) and permeate water pipe (7) of hole (411) intercommunication, water pump (8) that are equipped with on water pipe (7), locating piece (52) are located fixing base (41).
4. A precast concrete joint impermeability and durability test apparatus according to claim 3, wherein: the sample cylinder (2) is provided with a plurality of fixing blocks (21) corresponding to the fixing rods (42), and the fixing blocks (21) are provided with positioning holes (211) for inserting the fixing rods (42).
5. A precast concrete joint impermeability and durability test apparatus according to claim 3, wherein: the side wall of the fixing rod (42) is provided with a through hole (421), the fixing rod (42) is provided with a pressing rod (9) located in the through hole (421), and the width of the pressing rod (9) is gradually reduced from the center to two sides.
6. The precast concrete joint impermeability and durability test apparatus according to claim 1, wherein: the positioning assembly (3) comprises a pushing cylinder (31) arranged on the sample cylinder (2), a connecting rod (32) arranged at the piston end of the pushing cylinder (31) and a positioning rod (33) arranged at the end part of the connecting rod (32), wherein the connecting rod (32) is parallel to the top surface of the sample cylinder (2).
7. The precast concrete joint impermeability and durability test apparatus according to claim 4, wherein: the positioning rod (33) is perpendicular to the connecting rod (32), one end of the positioning rod (33) is fixed to the connecting rod (32), and the other end of the positioning rod (33) is provided with a pressing block (331).
8. The precast concrete joint impermeability and durability test apparatus according to claim 4, wherein: the piston end sleeve that promotes cylinder (31) is equipped with sleeve pipe (10), rotation groove (11) have been seted up along the periphery to the lateral wall of sleeve pipe (10), the tip of connecting rod (32) is equipped with and is located turning block (12) that rotate groove (11).
9. The precast concrete joint impermeability and durability test apparatus according to claim 1, wherein: spacing subassembly (5) still include elastic panel (53), elastic panel (53) are located between two spacing pipes (51), spacing groove (512) have been seted up on spacing pipe (51), be equipped with on elastic panel (53) with spacing groove (512) looks adaptation stopper (531).
10. A method of a precast concrete joint impermeability and durability test apparatus according to any one of claims 1 to 9, wherein: the method comprises the following implementation processes:
step1, preparing a test block: respectively manufacturing a plurality of new test blocks and old test blocks;
step2, test block maintenance: conveying the new test block and the old test block into a curing room for curing, taking out the cured new test block and the cured old test block, and wiping the surfaces of the new test block and the old test block;
step3, test piece integration: placing a new test block and an old test block into the sample cylinder (2), wherein the new test block and the old test block are respectively positioned at two sides of the elastic panel (53), and the new test block and the old test block are pressed and fixed through a plurality of pressing blocks (331); after the new test block and the old test block are fixed, the elastic panel (53) is taken out, concrete mortar is poured between the new test block and the old test block through the limiting pipe (51), the new test block and the old test block are integrated, and after the joint is solidified and formed, the integrated test block is formed;
step4, sealing test block: smearing a layer of molten paraffin on the side wall of the integrated test block, adding a small amount of rosin into the paraffin, taking out a limiting tube (51) and an elastic panel (53) in a sample cylinder (2), and pressing the integrated test block into the sample cylinder (2) preheated by an oven or an electric furnace by using a pressurizer;
step5, positioning test block: starting a pushing cylinder (31), and respectively pressing a new test block and an old test block in the integrated test block by using a pressing block (331), so that the stability of the integrated test block is improved;
step6, impermeability test: starting a water pump (8), conveying water to a fixed seat (41), enabling the water to enter a sample cylinder (2) through a water permeable hole (411), observing the water seepage condition of the end faces of the integrated test blocks at any time in the pressure stabilizing process, stopping the test of the integrated test blocks and recording time when one integrated test block has water seepage on the end face, and taking the height of the integrated test block as the water seepage height of the integrated test block; for the condition that the end face of the integrated test block has no water seepage, stopping the test 24 hours after the test, and taking out the integrated test block in time; during the test, when water was found to seep out from the periphery of the test block, sealing was performed again according to Step 4.
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|---|---|---|---|
| CN202111117043.4A CN113959921B (en) | 2021-09-23 | 2021-09-23 | Device and method for testing impermeability and durability of precast concrete joint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111117043.4A CN113959921B (en) | 2021-09-23 | 2021-09-23 | Device and method for testing impermeability and durability of precast concrete joint |
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| CN113959921A true CN113959921A (en) | 2022-01-21 |
| CN113959921B CN113959921B (en) | 2023-09-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116840128A (en) * | 2023-08-30 | 2023-10-03 | 寿光市房泰建筑安装有限公司 | Concrete impermeability test device and method |
| CN117589656A (en) * | 2024-01-18 | 2024-02-23 | 安徽建工三建集团有限公司 | Underground engineering concrete quality inspection device |
| WO2024045324A1 (en) * | 2022-08-29 | 2024-03-07 | 中国路桥工程有限责任公司 | Durability test system for reinforced concrete structure under marine multi-factor coupling erosion |
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