CN208310237U - A kind of provisions for grouting of prefabricated components - Google Patents
A kind of provisions for grouting of prefabricated components Download PDFInfo
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- CN208310237U CN208310237U CN201820819067.1U CN201820819067U CN208310237U CN 208310237 U CN208310237 U CN 208310237U CN 201820819067 U CN201820819067 U CN 201820819067U CN 208310237 U CN208310237 U CN 208310237U
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- sleeve
- grouting
- grout
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- agitating device
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Abstract
The utility model discloses a kind of provisions for groutings of prefabricated components, including precast concrete wall panel, precast concrete beam, and it is embedded in the grout sleeve of precast concrete wall panel bottom, the top of the grout sleeve is equipped with sleeve outlet, bottom is equipped with sleeve import, it further include the slurry circulation conveying mechanism being connect with grout sleeve, slurry circulation conveying mechanism includes agitating device and the booster pump that is connected with agitating device, the agitating device is equipped with grout outlet and stock inlet, the grout outlet is connected with transfer passage, the transfer passage and sleeve inlet communication, the stock inlet is connected with return flow line, the return flow line is connected to sleeve outlet.The utility model passes through setting slurry circulation conveying mechanism, realize cycle grouting, effectively solve sleeve inner grouting not enrich, bubble not sufficiently exclude, seam crossing grouting enrich or seal storehouse not tight spillage the problems such as, improve precast concrete between quality of connection problem.
Description
Technical field
The utility model relates to assembly concrete architectural engineering technology and detection fields, are specifically related to a kind of assembled
The provisions for grouting of prefabricated components in concrete construction.
Background technique
With the continuous reduction and the continuous rising of labor cost of construction practitioner, China starts gradually to add
Greatly to the guidance of assembled architecture development, greatly develops assembled architecture and have gone up as national development strategy, assembled is built
It builds industrialization and has become a kind of certainty.
Prefabricated assembled concrete structure is that field cast-in-place concrete is changed to prefabrication processing, forms prefabricated beam column plate
Equal components, then transport to construction site and carry out lifting assembly, pass through grouting connection, formation monoblock type composite structure body between structure
System.Compared with traditional cast-in-place system, prefabricated assembled concrete structural system can reduce 85% or more template consumption, reduce foot
50% or more hand cradle dosage reduces water consumption 40% or so, reduces 10% or more electricity consumption, reduces material consumption 40% or so,
Live rubbish 80% is reduced, construction period can shorten half.
Reinforcing bar connection type between each component of prefabricated assembled concrete mostly uses sleeve grouting connection, and sleeve fills
The cardinal principle of slurry connection is that the Ribbed Bar to be connected two is inserted into from the both ends centering of sleeve respectively, then from sleeve
Injected hole injects micro-expansion cement base sleeve cylinder grouting material, and after sleeve fills, grouting material is flowed out from sleeve other end grout outlet, wait fill
After slurry condensation hardening, two reinforcing bars just link together, and external force passes through cohesive force, the mechanical snap between reinforcing bar and grouting material
Cohesive force, mechanical snap power between power and grouting material and sleeve lining realize effective transmitting.
In engineering practice, metal grout sleeve can be embedded in advance in the bottom of component, and upper and lower two component carries out assembled
When, the reserved reinforcing bar in lower member top is inserted into the pre-buried sleeve in upper component bottom, is then infused using grouting pump from sleeve
Mouth pressure injection grouting material is starched until the outflow of sleeve grout outlet, sleeve completes grouting.But actual conditions are that field conditions are multiple
Miscellaneous, for sleeve grouting interconnection technique, there are still some defects and grouting quality to detect difficult point, specific as follows:
(1) during grouting material dry powder adds water and stirs, some construction personnel construct, and quality is not high, and meeting not add according to the ratio
Add mixing water, it is of low quality after causing grouting material condensation to be hardened;
(2), can not whether true by visually observing sleeve inner since sleeve is opaque metal material after grouting
Grouting material is filled in fact;
(3) in practice of construction, usually when grouting material is flowed out from grout outlet, it is believed that sleeve inner has filled grouting material,
But sleeve inner leads to defect of being in the milk, and grouting material will cause from grout outlet outflow it is possible in the presence of the bubble not excluded
Waste increases grouting cost;
(4) sleeve inner fills grouting material, but the seam crossing grouting material between component does not enrich or seam crossing seals storehouse
Do not occur spillage tightly, sleeve inner grouting material is not enriched place, sleeve inner is caused to be in the milk due to self weight, Self-leveling to seam 7
Expect defect, occurs cavity after sleeve filling when serious.
The safe application performance of these problems all extreme influence whole buildings.
Currently, being directed to these problems, the research about grouting quality detection inside reinforced bar sleeve mainly has traditional ultrasound
Wave method, Impact echo, vocal print feature method, pre-buried sensor method.For supercritical ultrasonics technology and Impact echo, there are precision not
The disadvantages of height, need artificial hand hammer excitation;For vocal print feature method, since construction site environment is complicated noisy, signal interference is larger,
Artificial experience identification is needed to judge vocal print feature;For pre-buried sensor method, there is complicated construction technique, it cannot after sensor embedment
It takes out, the disadvantages of cannot recycling.Detection of the above each method all just for grouting quality in sleeve, and detecting to fill
Slurry cannot be mended in time after slurry defect, need to be further stirred for grouting material, then be carried out back-grouting.
Therefore, it is necessary to a kind of provisions for groutings and its construction method to solve problem above.
Utility model content
For the above-mentioned problems in the prior art, it is desirable to provide a kind of provisions for grouting of prefabricated components passes through setting
The slurry circulation conveying mechanism connecting with grout sleeve, to realize the purpose of cycle grouting, which be can effectively solve in sleeve
Portion grouting not enrich, bubble not sufficiently exclude the problem of, while be also provided with detection grouting whether the construction procedure for Chong Shiing, can prevent
Only the problems such as mass defect after sleeve caused by the not tight spillage in storehouse fills, is not enriched or seals in seam crossing grouting, is effectively improved prefabricated mixed
Quality of connection problem between solidifying soil component.
Specific technical solution is as follows:
A kind of provisions for grouting of prefabricated components, including precast concrete wall panel, precast concrete beam, and be embedded in described
The grout sleeve of precast concrete wall panel bottom, the top of the grout sleeve are equipped with the bottom of sleeve outlet, the grout sleeve
Portion is equipped with sleeve import, further includes the slurry circulation conveying mechanism connecting with the grout sleeve, the slurry cyclic conveyor
Structure includes agitating device and the booster pump that is connected with the agitating device, and the agitating device is equipped with grout outlet and into slurry
Mouthful, the grout outlet is connected with transfer passage, the transfer passage and the sleeve inlet communication, and the stock inlet is connected with back
Circulation road, the return flow line are connected to the sleeve outlet.
Preferably, slurry circulation conveying mechanism includes the controller for controlling the agitating device and being pressurized pump work.
Preferably, the transfer passage is equipped with the first valve.
Preferably, the return flow line is equipped with the second valve.
Preferably, the transfer passage is transparent hose.
Preferably, the return flow line is transparent hose.
Preferably, the agitating device is equipped with discharge bin and mixing chamber.
Preferably, slurry circulation conveying mechanism is connect with multiple grout sleeves.
The good effect of above-mentioned technical proposal is:
1) the utility model is by being arranged the slurry circulation conveying mechanism being connected with grout sleeve, using cycle grouting
Mode is in the milk, and grouting operation is convenient and simple, has not only avoided the waste of grouting material, but also slurry in grout sleeve can effectively be discharged
Interior bubble can effectively prevent the quality problems that grouting is not enriched, bubble is not discharged sufficiently inside grout sleeve, and convey logical
Road and return flow line are made of soft transparent material, and filling process can observe the bubble situation in grout sleeve in time, thus
Improve grouting quality;
2) be in the milk at the end of also set up inspection grouting whether the step for Chong Shiing, further prevented seam crossing be in the milk do not enrich
Or envelope storehouse does not cause tightly to leak paddle defect problem, further ensures the grouting quality of the provisions for grouting;
Furthermore 3), the function of automatic stirring is arranged in the utility model on agitating device, can input grouting material dry powder and mix
The setting of Heshui matches, and adds grouting material automatically, and grouting material dry powder and mixing water is mixed, avoids due to artificial origin
Caused by grouting material mass defect, improve the mixing quality of grouting material.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
In attached drawing, 1, agitating device;1.1, grout outlet;1.2, stock inlet;1.3, discharge bin;1.4, mixing chamber;2, it conveys
Channel;2.1, the first valve;3, return flow line;3.1, the second valve;4, grout sleeve;4.1, sleeve import;4.2, sleeve goes out
Mouthful;5, precast concrete wall panel;6, precast concrete beam;7, seam.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, with
Lower embodiment combination attached drawing is specifically addressed to provided by the utility model.
Incorporated by reference to Fig. 1, a kind of provisions for grouting of prefabricated components, including precast concrete wall panel 5, precast concrete are shown
Beam 6 is equipped with seam 7, and is embedded in 5 bottom of precast concrete wall panel between precast concrete wall panel 5 and precast concrete beam 6
Grout sleeve 4, and the slurry circulation conveying mechanism being connect with grout sleeve 4.
Wherein, the top of grout sleeve 4 is equipped with sleeve outlet 4.2, bottom is equipped with sleeve import 4.1.Slurry circulation conveying
Mechanism includes agitating device 1 and the booster pump (not shown) being connected with agitating device 1, and agitating device 1 is equipped with grouting
The grout outlet 1.1 and stock inlet 1.2 of slurry body, grout outlet 1.1 are connected with transfer passage 2, transfer passage 2 and sleeve import 4.1
Connection;Stock inlet 1.2 is connected with return flow line 3, and return flow line 3 is connected to sleeve outlet 4.2, forms a grouting circulation conveying
Device.
In use, grouting material is uniformly mixed in agitating device 1, under the action of booster pump, slurry is filled from stirring
The outflow of grout outlet 1.1 for setting 1, is poured into grout sleeve 4 by transfer passage 2 from sleeve import 4.1, in grout sleeve 4
Grouting material be constantly full of entire sleeve, grouting material can be flowed out from sleeve outlet 4.2, then by return flow line 3 from agitating device 1
Stock inlet 1.2 pass back into agitating device 1, using the method, can effectively exclude the bubble in grout sleeve 4, improve grouting
Quality, while also avoiding the waste of grouting material.
Hereinafter, being illustrated with a kind of specific embodiment, it should be pointed out that described in following implementation it
Structure, technique, selection are only to illustrate the feasibility of embodiment, the intention of scope of protection of the utility model that there is no restriction.
The slurry circulation conveying mechanism includes the controller for controlling agitating device 1 and being pressurized pump work, and controller can be used
PLC control, can also be used single-chip microcontroller control.
Specifically, the agitating device 1 is equipped with discharge bin 1.3 and mixing chamber 1.4, discharge bin 1.3 is dry for storing grouting material
Powder and mixing water, mixing chamber 1.4 is for stirring grouting material.Under the control of the controller, it the dry powder that can input in grouting material and mixes
The setting of Heshui matches, and is stirred adding grouting material dry powder and mixing water into mixing chamber 1.4 automatically according to proportion mixed
The uniformly setting of this automation is closed, the worker that some construction quality can be prevented not high more or less adds mixing water, influences to fill
The quality of slurry.
The booster pump can be extruded grouting slurry by the pressure increased in agitating device 1.It is acted in the opening and closing of controller
Under, the grouting slurry body being uniformly mixed in agitating device 1 can be extruded grout outlet 1.1, grout sleeve is flowed by transfer passage 2
It is in the milk in 4, then agitating device 1 is back to by return flow line 3.The controllable grouting slurry body of controller pours into grout sleeve
4 opening and closing function is in the milk convenient and simple, and the waste of bubble and slurry body of being in the milk can be discharged.
Preferably, transfer passage 2 is equipped with the first valve 2.1, which flows into grouting set
The opening and closing of cylinder 4;Return flow line 3 is equipped with the second valve 3.1, not only can control the opening and closing of grouting slurry outflow grout sleeve 4, but also can
It is connected to outside air, whether the slurry for detecting in grout sleeve 4 is full of.
Further, transfer passage 2 and return flow line 3 are transparent hose, when facilitating observation grouting situation and grouting
Bubble situation.
In addition, the slurry circulation conveying mechanism can be connect with multiple grout sleeves 4 simultaneously, simultaneously to multiple grout sleeves 4
It is in the milk, grouting efficiency can be improved.The transfer passage 2 and return flow line 3 being connected with slurry circulation conveying mechanism can be
The jag structure of dendritic.
A kind of grout construction method of prefabricated components is described in detail with a kind of specific embodiment below, step is such as
Under:
Grouting material dry powder and mixing water are added in the discharge bin 1.3 of agitating device 1, the power supply of agitating device 1 is connected, is led to
The dry powder of controller setting grouting material and the proportion of mixing water are crossed, agitating device 1 is started, 1 auto feed of agitating device mixing is stirred
It mixes, mixing time is not less than 4 minutes.Using the technology of automatic stirring, it can effectively prevent that quality is not high leads because construction personnel constructs
The grouting material mixing quality problem of cause, to improve the mixing quality of grouting material.
After precast concrete wall panel 5 and precast concrete beam 6 are lifted, by each portion of the provisions for grouting of prefabricated components
Point be attached, specifically: by the grout outlet 1.1 of agitating device 1 by transfer passage 2 be connected to the sleeve of grout sleeve 4 into
The stock inlet 1.2 of agitating device 1 is connected to the sleeve outlet 4.2 of grout sleeve 4 by mouth 4.1 by return flow line 3, the company of completion
It connects.
Controller opens booster pump, opens the function that grouting slurry body pours into grout sleeve 4, starts to be in the milk, be in the milk slurry
Body is poured into grout sleeve 4 from the grout outlet 1.1 of agitating device 1 by transfer passage 2, and slurry body of being then in the milk is from grout sleeve
4 sleeve outlet 4.2 is back in agitating device 1 by return flow line 3, and cycle grouting, this process circulation time should be no less than 1
Minute, to guarantee that bubble is sufficiently discharged in grout sleeve 4.
During cycle grouting, construction personnel should observe the discharge situation of bubble by return flow line 3, when there is bubble
When discharge, grouting is continued cycling through, when bubble-free discharge, closes booster pump, closes the function that grouting slurry body pours into grout sleeve 4
Can, stop grouting.
Grain filling is detected, when not observing bubble discharge in return flow line 3, closes first on transfer passage 2
Valve 2.1, and return flow line 3 is mentioned to the sleeve outlet 4.2 for being higher than grout sleeve 4 and is no less than at 10 centimeters, reflux is logical at this time
The second valve 3.1 on road 3 is opened, and communicates return flow line 3 with ambient pressure, and grouting slurry body is in observation return flow line 3
It is no to be back in grout sleeve 4, step 3 and step 4 are repeated if slurry is back in grout sleeve 4, if slurry does not flow back,
I.e. grouting is completed.Increase this detecting step, grouting at seam 7 can be effectively prevent not enrich or seal the not tight caused spillage in storehouse,
Quality after filling to influence grout sleeve 4.
The slurry circulation conveying mechanism that the utility model is connected by setting with grout sleeve 4, using cycle grouting
Mode is in the milk, and grouting operation is convenient and simple, has not only avoided the waste of grouting material, but also can effectively be discharged in grout sleeve 4 and starch
Intracorporal bubble, the quality problems that the unsubstantial, bubble that can effectively prevent being in the milk inside grout sleeve 4 is not discharged sufficiently, and also it is defeated
Channel 2 and return flow line 3 is sent to be made of soft transparent material, filling process can observe the bubble feelings in grout sleeve 4 in time
Condition, to improve grouting quality;Also set up at the end of grouting inspection grouting whether the step for Chong Shiing, further prevented seam 7
Storehouse is not enriched or sealed in place's grouting not to cause tightly to leak paddle defect problem, further ensures the grouting quality of the provisions for grouting;Again
The function of automatic stirring is arranged in person, the utility model on agitating device 1, and the setting that can input grouting material dry powder and mixing water is matched
Than adding grouting material automatically, grouting material dry powder and mixing water being mixed, avoids the grouting material as caused by artificial origin
Mass defect improves the mixing quality of grouting material.
The above is only the utility model preferred embodiments, are not intended to limit the embodiments of the present invention and protection
Range should can appreciate that all with the utility model specification and diagramatic content institute to those skilled in the art
The equivalent replacement made and obviously change obtained scheme, the protection scope of the utility model should all be included in
It is interior.
Claims (8)
1. a kind of provisions for grouting of prefabricated components, including precast concrete wall panel (5), precast concrete beam (6), and be embedded in
The top of the grout sleeve (4) of precast concrete wall panel (5) bottom, the grout sleeve (4) is equipped with sleeve outlet
(4.2), the bottom of the grout sleeve (4) is equipped with sleeve import (4.1), it is characterised in that: further includes and the grout sleeve
(4) the slurry circulation conveying mechanism connected, slurry circulation conveying mechanism include agitating device (1) and fill with the stirring
(1) connected booster pump is set, the agitating device (1) is equipped with grout outlet (1.1) and stock inlet (1.2), the grout outlet
(1.1) it is connected with transfer passage (2), the transfer passage (2) is connected to the sleeve import (4.1), the stock inlet (1.2)
It is connected with return flow line (3), the return flow line (3) is connected to the sleeve outlet (4.2).
2. a kind of provisions for grouting of prefabricated components according to claim 1, which is characterized in that the slurry cyclic conveyor
Structure includes the controller for controlling the agitating device (1) and being pressurized pump work.
3. a kind of provisions for grouting of prefabricated components according to claim 1, which is characterized in that on the transfer passage (2)
Equipped with the first valve (2.1).
4. a kind of provisions for grouting of prefabricated components according to claim 1, which is characterized in that on the return flow line (3)
Equipped with the second valve (3.1).
5. a kind of provisions for grouting of prefabricated components according to claim 1, which is characterized in that the transfer passage (2) is
Transparent hose.
6. a kind of provisions for grouting of prefabricated components according to claim 1, which is characterized in that the return flow line (3) is
Transparent hose.
7. a kind of provisions for grouting of prefabricated components according to claim 1, which is characterized in that the agitating device (1) sets
There are discharge bin (1.3) and mixing chamber (1.4).
8. a kind of provisions for grouting of prefabricated components according to claim 1, which is characterized in that the slurry cyclic conveyor
Structure is connect with multiple grout sleeves (4).
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Cited By (1)
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CN108590189A (en) * | 2018-05-30 | 2018-09-28 | 宁波普利凯建筑科技有限公司 | A kind of provisions for grouting and its construction method of prefabricated components |
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CN108590189A (en) * | 2018-05-30 | 2018-09-28 | 宁波普利凯建筑科技有限公司 | A kind of provisions for grouting and its construction method of prefabricated components |
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