CN105214895B - A kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor - Google Patents
A kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor Download PDFInfo
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- CN105214895B CN105214895B CN201510527456.8A CN201510527456A CN105214895B CN 105214895 B CN105214895 B CN 105214895B CN 201510527456 A CN201510527456 A CN 201510527456A CN 105214895 B CN105214895 B CN 105214895B
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- corrosion inhibitor
- reinforcing steel
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Abstract
The invention discloses a kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor, feature is to carry out low-pressure injection using low-pressure injection device, and step is：Reinforced concrete structure is tested with steel bar corrosion instrument first, find out rusty part, surface to the rusty part of reinforced concrete structure carries out frosted treatment, reinforcing steel bar corrosion inhibitor is deployed into reinforcing steel bar corrosion inhibitor saturated aqueous solution, on the surface of the rusty part that will be fixed in low-pressure injection device after frosted treatment, reinforcing steel bar corrosion inhibitor saturated aqueous solution is gradually filled into the reinforced concrete structure of rusty part by low-pressure injection device；Advantage is the seepage velocity and intensification penetration depth that can accelerate reinforcing steel bar corrosion inhibitor saturated aqueous solution in reinforced concrete structure, and it is easy to operate, safe, simple, in addition, it is influenceed small by weather, even if running into rainy day, reinforcing steel bar corrosion inhibitor saturated aqueous solution also will not be by rain drop erosion, it is ensured that resistance rust effect, nor surrounding enviroment can be polluted, be conducive to environmental protection.
Description
Technical field
The present invention relates to the antirusting treating method of reinforced concrete structure in building field, more particularly to a kind of reinforcing bar resistance rust
The low-pressure injection method of agent.
Background technology
Reinforcement corrosion causes the premature failure of concrete structure, is always the hot issue of countries in the world common concern.Make
The reason for into steel bar corrosion is many, in addition to construction quality, mainly reinforced concrete structure under arms during meet with
Influenceed by spontaneous corrosion environment and the corrosive environment for artificially causing.At present, for corrode or in corrosive environment both
There is concrete structure, main restorative procedure has electrochemical rehabilitation, painted concrete corrosion-inhibiting coating and brushing reinforcing steel bar corrosion inhibitor three
Kind：
（1）, electrochemical rehabilitation although there is effective protectiveness, cost is higher；
（2）, painted concrete corrosion-inhibiting coating：Moisture, chlorion, oxygen can be prevented for newly-built reinforced concrete structure
Further invade inside concrete, it is attractive in appearance and can extending structure service life, but the steel for having been corroded by harmful ion
Tendon concrete structure, then cannot suppress to have penetrated into the corrosion of the corrosive ions to reinforcing bar of inside concrete；
（3）, brushing reinforcing steel bar corrosion inhibitor：On the one hand it can postpone the initial time that reinforcing bar gets rusty, and on the other hand can subtract
The slow reinforcement corrosion speed of development, the method is simple to operate, convenient and economical, can well protect existing structure, and right
Structure is not damaged, and is a kind of very promising safeguard measure, but directly applies reinforcing steel bar corrosion inhibitor due to being substantially at present
The surface of reinforced concrete structure is put on, its naturally osmotic is allowed, its seepage velocity is slow and depth as shallow, and influenceed by weather
Greatly, if meeting the rainy day, the reinforcing steel bar corrosion inhibitor for being applied to bold concrete structural surface is easily diluted by rain drop erosion, largely effects on it
Resistance rust effect, and certain environmental pollution can be caused.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of seepage velocity for accelerating reinforcing steel bar corrosion inhibitor, deepen infiltration
Depth, and the low-pressure injection method of reinforcing steel bar corrosion inhibitor small, beneficial to environmental protection is influenceed by weather.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor,
It uses the low-pressure injection device to carry out low-pressure injection, and described low-pressure injection device includes base, needle tubing, push rod and gland, described
The lower end of needle tubing is provided with injection head, and perfusion channel is provided with described base, and described injection head is logical with described perfusion
Road bolt, the lower end of described push rod stretches into described needle tubing and lower end is connected with piston so that described piston and institute
Can be relatively rotated but axial restraint between the push rod stated, described piston is slidably matched with described needle tubing sealing, and described pushes away
The upper end of bar is bolted with handle, and described gland is screwed onto the upper end of described needle tubing, described push rod and described gland it
Between be provided with press mechanism and for the liquid in described needle tubing is carried out volume, pressure controlled tune product pressure regulating device；
Low-pressure injection method using above-mentioned low-pressure injection device includes step in detail below：
（1）, first with steel bar corrosion instrument reinforced concrete structure is tested, find out rusty part；
（2）, frosted treatment is carried out to the surface of the rusty part of reinforced concrete structure；
（3）, reinforcing steel bar corrosion inhibitor is deployed into reinforcing steel bar corrosion inhibitor saturated aqueous solution；
（4）, by the base in low-pressure injection device by seal AB glue be fixed on frosted process after rusty part surface,
And reinforced on the surface of rusty part base with fixing screws；
（5）, pull in low-pressure injection device needle tubing in push rod, and pressure regulating device is accumulated by tune between push rod and gland
The reinforcing steel bar corrosion inhibitor saturated aqueous solution of groundwater increment needed for drawing, while press mechanism is water-soluble to the reinforcing steel bar corrosion inhibitor saturation in needle tubing
Liquid is with corresponding pressure；
（6）, the injection head of needle tubing lower end is screwed into the perfusion channel of base and tightened, then discharge push rod, pushing
In the presence of mechanism, piston gradually promotes reinforcing steel bar corrosion inhibitor saturated aqueous solution to be passed through perfusion channel low-pressure injection to the portion of getting rusty
In the reinforced concrete structure of position；
（7）, when the reinforcing steel bar corrosion inhibitor saturated aqueous solution in needle tubing has been injected, pull down base from the surface of rusty part,
Whole low-pressure injection process terminates.
Described tune product pressure regulating device includes the regulating block that multiple is sequentially sleeved on described push rod up and down, described tune
Interference fits between locking nub and described push rod, under external force, described regulating block can be rotated on described push rod or
Move up and down, positioning convex tendon has been wholely set on the outer circumference surface of described regulating block, on upper and lower two adjacent regulating blocks
Positioning convex tendon is staggeredly located out circumferencial direction, and limited location block, described positive stop are wholely set on described push rod
Positioned at the lower section of the regulating block of bottom, positioning table is wholely set in described gland, described positioning table is located at described
In needle tubing, centre bore is provided with described positioning table, described push rod is axially across described centre bore, described centre bore
Aperture be equal or slightly larger than the external diameter of described regulating block so that described regulating block may pass through described centre bore and described
Positioning convex tendon cannot pass through described centre bore, be provided with positioning groove on described positioning table, described positioning table it is upper
End face is provided with detent, described detent and described positioning groove circumferencial direction be staggeredly located out and with
Described centre bore is connected, and described positioning convex tendon axially across described positioning groove or can withstand on described detent
In.
Described press mechanism includes spring, and described spring is socketed on described push rod, the lower end of described push rod
Platform is wholely set, described spring top is connected between the described lower surface of positioning table and the upper surface of described platform.
The lower surface of described positioning table is provided with spring groove, and the upper end apical grafting of described spring is recessed in described spring
In groove.
A plurality of first reinforcement has been wholely set between the outer circumference surface of the bottom of described push rod and described platform.
Changeover portion it has been wholely set between the lower end of described needle tubing and described injection head, the upper surface of described base
Perfusion section is wholely set, described perfusion channel is arranged in described perfusion section and penetrates described base, described mistake
The external diameter for crossing section is equal with the external diameter of described perfusion section, and described changeover portion is arranged with rubber with the interface of described perfusion section
Glue sealing ring；Seal when ensure that injection head is connected with perfusion section, prevents reinforcing steel bar corrosion inhibitor saturated aqueous solution from being noted in low pressure
There is seepage with perfusion section junction from injection head during penetrating.
A plurality of second reinforcement has been wholely set between described perfusion section and the upper surface of described base.
The bottom of described base is provided with the filling cavity being connected with described perfusion channel, under described filling cavity
End opening, reinforcing steel bar corrosion inhibitor saturated aqueous solution and the contact area on rusty part surface, accelerate reinforcing bar resistance rust when increased perfusion
The seepage velocity of agent saturated aqueous solution.
It is used to be provided with leak adhesive groove on the edge that contact with the surface of rusty part on described base, when with sealing AB glue
When base to be fixed on the surface of rusty part, unnecessary sealing AB glue can be extruded from the leak adhesive groove at edge, prevent fluid sealant
It is squeezed into filling cavity.
Compared with prior art, the advantage of the invention is that：
（1）, reinforcing steel bar corrosion inhibitor saturated aqueous solution oozing in reinforced concrete structure can be accelerated using the low-pressure injection method
Saturating speed and intensification penetration depth, and it is easy to operate, safe, simple, it is particularly suitable for certain tool in reinforced concrete structure
The repairing of body corrosion point；
（2）, by weather influenceed small, even if running into rainy day, reinforcing steel bar corrosion inhibitor saturated aqueous solution also will not by rain drop erosion,
Resistance rust effect is ensure that, nor surrounding enviroment can be polluted, be conducive to environmental protection；
（3）, due to be provided with the low-pressure injection device used in this method press mechanism and adjust product pressure regulating device, it is adjustable
Section needs the groundwater increment and injection pressure of the reinforcing steel bar corrosion inhibitor saturated aqueous solution of perfusion, to meet different concrete structure or not
Different usage amounts requirement with place to reinforcing steel bar corrosion inhibitor saturated aqueous solution, it is to avoid cause the wave of reinforcing steel bar corrosion inhibitor saturated aqueous solution
Take, also avoid repeatedly perfusion, it is easy to use；
（4）, the low-pressure injection device simple structure that is used, low cost, dismounting is safeguarded all more convenient.
Brief description of the drawings
Fig. 1 is the sectional view of low-pressure injection device used in the present invention；
Fig. 2 is the top view of the gland in low-pressure injection device of the invention；
Fig. 3 is the sectional view of A-A in Fig. 2；
Fig. 4 is the dimensional structure diagram of the base in low-pressure injection device of the invention；
Fig. 5 is the structural representation of the push rod in low-pressure injection device of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As illustrated, a kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor, it uses the low-pressure injection device to carry out low-pressure injection, low pressure
Irrigator includes base 1, needle tubing 2, push rod 3 and gland 4, and the lower end of needle tubing 2 is provided with injection head 21, injection head 21 and needle tubing 2
Lower end between be wholely set changeover portion 22, the upper surface of base 1 has been wholely set perfusion section 11, is provided with perfusion section 11
Perfusion channel 12, perfusion channel 12 penetrates base 1, injection head 21 and the bolt of perfusion channel 12, external diameter and the filling of changeover portion 22
The external diameter for noting section 11 is equal, and changeover portion 22 is arranged with rubber seal ring 5, perfusion section 11 and base 1 with the interface of perfusion section 11
Upper surface between be wholely set a plurality of second reinforcement 13, the bottom of base 1 is provided with what is be connected with perfusion channel 12
Filling cavity 14, the lower ending opening of filling cavity 14 is used to be provided with Lou on the edge 15 that is contacted with the surface of rusty part on base 1
Glue groove 16, the lower end of push rod 3 stretches into needle tubing 2 and lower end is connected with piston 6 so that can be relatively rotated between piston 6 and push rod 3
But axial restraint, piston 6 is slidably matched with the sealing of needle tubing 2, and the upper end of push rod 3 is bolted with handle 7, and gland 4 is screwed onto needle tubing 2
Upper end, is provided with press mechanism and for carrying out volume, pressure controlled tune to the liquid in needle tubing 2 between push rod 3 and gland 4
Product pressure regulating device, adjusts product pressure regulating device to include that multiple is sequentially sleeved at the regulating block 8 on push rod 3, regulating block 8 and push rod 3 up and down
Between interference fits, under external force, regulating block 8 can be rotated or moved up and down on push rod 3, the outer circumference surface of regulating block 8
On be wholely set positioning convex tendon 81, position phase of the positioning convex tendon 81 on upper and lower two adjacent regulating blocks 8 in circumferencial direction
Stagger, limited location block 31 is wholely set on push rod 3, positive stop 31 is located at the lower section of the regulating block 8 of bottom, in gland 4
Be wholely set positioning table 41, positioning table 41 is located in needle tubing 2, be provided with centre bore 42 on positioning table 41, push rod 3 axially across
Centre bore 42, the aperture of centre bore 42 is equal or slightly larger than the external diameter of regulating block 8 so that regulating block 8 may pass through centre bore 42 and
Positioning convex tendon 81 cannot pass through centre bore 42, and positioning groove 43 is provided with positioning table 41, and the upper surface of positioning table 41 is provided with
Detent 44, detent 44 and positioning being staggeredly located out and being connected with centre bore 42 in circumferencial direction of groove 43,
Positioning convex tendon 81 axially across positioning groove 43 or can withstand on detent 44, and press mechanism includes spring 9, spring 9 is socketed
On push rod 3, the lower end of push rod 3 has been wholely set platform 32, and the lower surface of positioning table 41 is provided with spring groove 45, spring 9
Lower end apical grafting on the upper surface of platform 32, the upper end apical grafting of spring 9 in spring groove 45, the bottom of push rod 3 it is outer
A plurality of first reinforcement 33 has been wholely set between periphery and platform 32；
Low-pressure injection method using above-mentioned low-pressure injection device includes step in detail below：
（1）, first with steel bar corrosion instrument reinforced concrete structure is tested, find out rusty part；
（2）, frosted treatment is carried out to the surface of the rusty part of reinforced concrete structure；
（3）, reinforcing steel bar corrosion inhibitor is deployed into reinforcing steel bar corrosion inhibitor saturated aqueous solution；
（4）, by the base 1 in low-pressure injection device by seal AB glue be fixed on frosted process after rusty part table
Face, and reinforced on the surface of rusty part base 1 with fixing screws；
（5）, pull in low-pressure injection device needle tubing 2 in push rod 3, and pressure regulation is accumulated by tune between push rod 3 and gland 4
Mechanism draws the reinforcing steel bar corrosion inhibitor saturated aqueous solution of required groundwater increment, while press mechanism is satisfied to the reinforcing steel bar corrosion inhibitor in needle tubing 2
With the aqueous solution with corresponding pressure；
（6）, the injection head 21 of the lower end of needle tubing 2 is screwed into the perfusion channel 12 of base 1 and tightened, then discharge push rod 3,
In the presence of press mechanism, piston 6 gradually promotes reinforcing steel bar corrosion inhibitor saturated aqueous solution to be passed through the low pressure of perfusion channel 12 and fills
In noting the reinforced concrete structure of rusty part；
（7）, when the reinforcing steel bar corrosion inhibitor saturated aqueous solution in needle tubing 2 has been injected, pull down base from the surface of rusty part
1, whole low-pressure injection process terminates.
In above-described embodiment, the low-pressure injection device for being used carries out body to the reinforcing steel bar corrosion inhibitor saturated aqueous solution in needle tubing 2
Long-pending, pressure controlled detailed process is：Needle tubing 2 is backed out from base 1, push rod 3 is pulled then up to extract reinforcing bar resistance rust
Agent saturated aqueous solution, then according to required for groundwater increment, when moving the regulating block 8 of relevant position to, rotating push-rod 3 drive regulation
Block 8 is rotated in the positioning convex tendon 81 on the regulating block 8 is withstood on the detent 44 of positioning table 41 simultaneously, now, reinforcing bar resistance rust
Agent saturated aqueous solution is extracted and finished, and spring 9 is compressed, and the reinforcing steel bar corrosion inhibitor saturated aqueous solution in needle tubing 2 is produced corresponding
Pressure, the injection head 21 of needle tubing 2 then be screwed into perfusion channel 12 and tightened, and regulating block 8 is rotated with hand, is made all positioned at fixed
Positioning convex tendon 81 on the regulating block 8 of the top of position platform 41 is all located at the same position of circumferencial direction, and then rotating push-rod 3 drives and adjusts
Locking nub 8 is rotated, make to withstand on the positioning convex tendon 81 in detent 44 go to positioning groove 43 in, now, in the bullet of spring 9
Under power effect, the reinforcing steel bar corrosion inhibitor saturated aqueous solution in needle tubing 2 is gradually penetrated into reinforced concrete structure.
Claims (9)
1. the low-pressure injection method of a kind of reinforcing steel bar corrosion inhibitor, it is characterised in that it uses the low-pressure injection device to carry out low-pressure injection, described
Low-pressure injection device include base, needle tubing, push rod and gland, the lower end of described needle tubing is provided with injection head, described base
Inside it is provided with perfusion channel, described injection head and described perfusion channel bolt, the lower end of described push rod are stretched into described
Needle tubing in and lower end is connected with piston so that can be relatively rotated but axial restraint between described piston and described push rod,
Described piston is slidably matched with described needle tubing sealing, and the upper end of described push rod is bolted with handle, and described gland is spirally connected
Press mechanism is provided between the upper end of described needle tubing, described push rod and described gland and for described needle tubing
Interior liquid carries out volume, pressure controlled tune product pressure regulating device；
Low-pressure injection method using above-mentioned low-pressure injection device includes step in detail below：
(1), reinforced concrete structure is tested with steel bar corrosion instrument first, rusty part is found out；
(2), the surface to the rusty part of reinforced concrete structure carries out frosted treatment；
(3) reinforcing steel bar corrosion inhibitor, is deployed into reinforcing steel bar corrosion inhibitor saturated aqueous solution；
(4), the base in low-pressure injection device is fixed on the surface of the rusty part after frosted is processed by sealing AB glue, is used in combination
Fixing screws reinforce on the surface of rusty part base；
(5) push rod in the needle tubing in low-pressure injection device, is pulled, and pressure regulating device is accumulated by the tune between push rod and gland and drawn
The reinforcing steel bar corrosion inhibitor saturated aqueous solution of required groundwater increment, at the same press mechanism to the reinforcing steel bar corrosion inhibitor saturated aqueous solution in needle tubing with
Corresponding pressure；
(6), the injection head of needle tubing lower end is screwed into the perfusion channel of base and is tightened, push rod is then discharged, in press mechanism
In the presence of, piston gradually promotes reinforcing steel bar corrosion inhibitor saturated aqueous solution to be passed through perfusion channel low-pressure injection to rusty part
In reinforced concrete structure；
(7), when the reinforcing steel bar corrosion inhibitor saturated aqueous solution in needle tubing has been injected, base is pulled down from the surface of rusty part, entirely
Low-pressure injection process terminates.
2. a kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor as claimed in claim 1, it is characterised in that described tune product pressure regulator
Structure includes the regulating block that multiple is sequentially sleeved on described push rod up and down, transition between described regulating block and described push rod
Coordinate, under external force, described regulating block can be rotated or moved up and down on described push rod, described regulating block it is outer
Positioning convex tendon is wholely set on periphery, position phase of the positioning convex tendon on upper and lower two adjacent regulating blocks in circumferencial direction
Stagger, limited location block is wholely set on described push rod, described positive stop is located at the lower section of the regulating block of bottom, institute
Positioning table is wholely set in the gland stated, described positioning table is located in described needle tubing, is provided with described positioning table
Centre bore, axially across described centre bore, the aperture of described centre bore is equal to or more than described regulation to described push rod
The external diameter of block so that described regulating block may pass through described centre bore and described positioning convex tendon cannot pass through described center
Hole, is provided with positioning groove on described positioning table, the upper surface of described positioning table is provided with detent, described positioning
Groove and described positioning groove being staggeredly located out and being connected with described centre bore in circumferencial direction, described positioning
Convex tendon axially across described positioning groove or can withstand on described detent.
3. a kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor as claimed in claim 2, it is characterised in that described press mechanism bag
Spring is included, described spring is socketed on described push rod, and the lower end of described push rod has been wholely set platform, described spring
Apical grafting is between the upper surface of the lower surface of described positioning table and described platform.
4. the low-pressure injection method of a kind of reinforcing steel bar corrosion inhibitor as claimed in claim 3, it is characterised in that under described positioning table
End face is provided with spring groove, and the upper end apical grafting of described spring is in described spring groove.
5. a kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor as claimed in claim 3, it is characterised in that the lower end of described push rod
A plurality of first reinforcement has been wholely set between the outer circumference surface in portion and described platform.
6. a kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor as claimed in claim 1, it is characterised in that the lower end of described needle tubing
Changeover portion is wholely set between described injection head, the upper surface of described base has been wholely set perfusion section, described
Perfusion channel is arranged in described perfusion section and penetrates described base, the external diameter of described changeover portion and described perfusion section
External diameter it is equal, described changeover portion is arranged with rubber seal ring with the interface of described perfusion section.
7. the low-pressure injection method of a kind of reinforcing steel bar corrosion inhibitor as claimed in claim 6, it is characterised in that described perfusion section and institute
A plurality of second reinforcement has been wholely set between the upper surface of the base stated.
8. a kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor as claimed in claim 1, it is characterised in that the bottom of described base
It is provided with the filling cavity being connected with described perfusion channel, the lower ending opening of described filling cavity.
9. the low-pressure injection method of a kind of reinforcing steel bar corrosion inhibitor as claimed in claim 1, it is characterised in that be used on described base
Leak adhesive groove is provided with the edge contacted with the surface of rusty part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510527456.8A CN105214895B (en) | 2015-08-25 | 2015-08-25 | A kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor |
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| CN201510527456.8A CN105214895B (en) | 2015-08-25 | 2015-08-25 | A kind of low-pressure injection method of reinforcing steel bar corrosion inhibitor |
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| CN105214895A CN105214895A (en) | 2016-01-06 |
| CN105214895B true CN105214895B (en) | 2017-05-31 |
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| CN106111448A (en) * | 2016-08-10 | 2016-11-16 | 江苏力沛电力工程技术服务有限公司 | A kind of sealant injection device |
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| CN1421579A (en) * | 2001-11-23 | 2003-06-04 | 金圣烋 | Filling reinforcing apparatus for construction fissure and waterproof method thereof |
| CN200982076Y (en) * | 2006-11-23 | 2007-11-28 | 范庆喜 | Multifunctional glue injector |
| KR101045664B1 (en) * | 2010-11-08 | 2011-07-01 | 와이앤케이텍 주식회사 | Repairing liquid injector for maintaining a crack of concrete structure |
| CN201977963U (en) * | 2011-03-04 | 2011-09-21 | 施瑞客（天津）生物技术有限公司 | Continuously adjustable veterinary medicine administering apparatus |
| CN202441064U (en) * | 2012-02-20 | 2012-09-19 | 深圳市富诚幕墙装饰工程有限公司 | Worm type pressurizing grouter |
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