CN107192793A - Distress in concrete grouting material concrete castability test method - Google Patents
Distress in concrete grouting material concrete castability test method Download PDFInfo
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- CN107192793A CN107192793A CN201710395925.4A CN201710395925A CN107192793A CN 107192793 A CN107192793 A CN 107192793A CN 201710395925 A CN201710395925 A CN 201710395925A CN 107192793 A CN107192793 A CN 107192793A
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- grouting material
- grouting
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- proportioning
- seam
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The present invention provides a kind of distress in concrete grouting material concrete castability test method, this method comprises the following steps, step 1, in the grouting seam that the grouting material of the first proportioning is poured into results of fracture simulation experimental rig, the grouting material of the first proportioning and the relation that is engaged of left and right side plate are observed by transparent left and right side plate；Step 2, before the grouting material of the first proportioning is uncured, the grouting material of the first proportioning in grouting seam is cleaned, then the grouting material of second of proportioning is poured into the grouting seam, passes through the grouting material and the relation that is engaged of left and right side plate of transparent second of proportioning of left and right side plate observation.The problem of concrete castability when the present invention solves grouting test in the prior art on distress in concrete standard disunity, and crack longitudinal direction is difficult observation.
Description
Technical field
The present invention relates to a kind of distress in concrete grouting material concrete castability test method.
Background technology
In architectural engineering, concrete can be because plastic shrinkage, the temperature difference, differential settlement and the reason production such as bearing capacity is excessive
Raw various forms of cracks, surface crack therein can accelerate the erosion of concrete, and deeper clefts can then cause the seepage of structure,
Influence the stabilization and safety of structure.Therefore, in time the crack of concrete is carried out repairing particularly important.Filled into distress in concrete
It is a kind of common crack repairing form to enter grouting material, but how to select most suitably used filling for the crack of different in width and depth
Slurry, it is necessary to which to the comparative evaluation of the being operated property of grouting material of different ratio, and the concrete castability of grouting material is to evaluate its work
The important indicator for the property made, but the test method of specification is there is no at present., it is necessary to find suitable crack during the experiment of grouting material concrete castability
Carry out grouting test.In the past when carrying out grouting test, the jackknifing of concrete beam-type test specimen is formed by testing machine simulated first
Crack, then pours into grouting material into crack, and grouting material is judged by observing the turgor of grouting material fracture filling
Concrete castability energy.The problem of this test method is present be：（1）The concrete simulation fracture obtained by bending test can only be used
Once, and on different concrete samples the simulation fracture obtained cross-section structure and yardstick in terms of etc. it is inconsistent, therefore,
When needing the grouting material to different ratio to carry out concrete castability contrast, due to the perfusion benchmark disunity of reference, it can not just draw
Rational contrast conclusion；（2）Due to the opacity of concrete sample, when carrying out grouting test, it is only capable of observing fracture tip
Perfusion situation, it is difficult to observe the filling of the mated condition between grouting material and concrete broken face, i.e. grouting material to whole crack
Turgor, it is impossible to be difficult to obtain comprehensive concrete castability data and carry out accurate concrete castability judgement.（3）Existing method cost
High, efficiency is low, comparativity is poor.
The content of the invention
It is an object of the invention to provide a kind of distress in concrete grouting material concrete castability test method, to solve prior art
The problem of concrete castability during middle grouting test on distress in concrete standard disunity, and crack longitudinal direction is difficult observation.
To achieve these goals, the technical solution adopted in the present invention is：
Distress in concrete grouting material concrete castability test method, this method comprises the following steps, step 1, by the filling of the first proportioning
Slurry is poured into the grouting seam of results of fracture simulation experimental rig, and the first grouting material matched is observed by transparent left and right side plate
With the relation that is engaged of left and right side plate；Step 2, before the grouting material of the first proportioning is uncured, to first in grouting seam
The grouting material of kind of proportioning is cleaned, and then pours into the grouting material of second of proportioning in the grouting seam, by a transparent left side,
The grouting material of second of proportioning of right plate observation and the relation that is engaged of left and right side plate.
It is preferred that, in the step 2, when being cleaned to the first grouting material matched in grouting seam, right plate
Torn open with the mechanism fixed plate of results of fracture simulation experimental rig as an entirety on the forward and backward side plate of results of fracture simulation experimental rig
From being respectively washed to left plate and right plate.
It is preferred that, in step 1, the grouting material of the first proportioning is poured into it in the grouting seam of results of fracture simulation experimental rig
Before, the spacing between distance regulating mechanism adjustment left and right side plate is first passed through, in step 2, the grouting material of second of proportioning is filled
Before entering in the grouting seam of results of fracture simulation experimental rig, the spacing between adjustment left and right side plate makes to be in the milk in step 2 width of seam
It is identical with the width for the seam that is in the milk in step 1.
It is preferred that, in step 1 and step 2, the grouting material is injected into grouting seam by grouting material discharger.
It is preferred that, the grouting material discharger includes the staving with discharging opening, and discharge outlet goes out in the top of grouting seam
The flashboard of discharging opening size can be adjusted by being provided with material mouth.
It is preferred that, flashboard is assemblied on the staving by flashboard axis of rotation, is installed with rotating disk, rotating disk and is set on flashboard
It is equipped with the rotating disk tightening screw that the arc-shaped slot is provided through on arc-shaped slot, staving.
It is preferred that, at least side of arc-shaped slot is provided with discharging opening regulation scale.
Beneficial effects of the present invention are：In the present invention, simulated by the grouting seam of board slit simulation apparatus mixed in reality
Solidifying soil cracking seam, is not required to backfin floor, and the acquisition form of distress in concrete is simple, while being also beneficial to the filling in each grouting test
The standard of slurry seam is consistent, can more accurately compare out the different respective concrete castabilities of grouting material, in addition by being stitched in grouting
To the observation of the left and right side plate of transparent material on length direction, filling between grouting material and left and right side plate can be clearly found out
Solidity and perfusion depth, obtain a more comprehensively concrete castability data；Before the grouting material of another proportioning is poured into, to not
The grouting material of solidification is cleaned, it is to avoid influence of the grouting material to follow-up grouting material before, while also causing the cleaning of grouting material
It is more convenient, be conducive to improving test efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the board slit simulation apparatus in embodiments of the invention 1；
Fig. 2 is Fig. 1 top view；
Fig. 3 is the structural representation of the board slit simulation apparatus in embodiments of the invention 2；
Fig. 4 is Fig. 3 A-A to sectional view.
Embodiment
The embodiment 1 of distress in concrete grouting material concrete castability test method is as shown in Figure 1-2：
The results of fracture simulation experimental rig being related in this method includes being fixedly installed on the bottom plate 18 that transparent material is made, bottom plate
Left plate 14, front side board 25 and back side panel 24, the right-hand member of forward and backward side plate are connected with mechanism fixed plate by screw threads for fastening structure
19, screw threads for fastening structure includes being articulated with the first fastening screw 23 of front side board right-hand member and be articulated with back side panel right-hand member second is tight
Gu the screw rod perforation passed through for correspondence fastening screw upset, mechanism fixed plate are offered on screw rod, the side of mechanism fixed plate 19
19 have towards left raised convex positioning boss 30, the gap location fit between convex positioning boss 30 and front and rear side plate,
Nut 23 is threaded with each fastening screw, loosening nut when using can turn over fastening screw in correspondence screw rod perforation
Go out, nut need not completely dismantle on fastening screw, just mechanism fixed plate can be dismantled, the dismounting of mechanism fixed plate is unusual
It is convenient, while it also avoid nut loses problem.
Right plate 15 is connected with by distance regulating mechanism in mechanism fixed plate, distance regulating mechanism is by right plate 15 and machine
Structure fixed plate 19 connects into overall structure, and the right position of right plate can be adjusted by distance regulating mechanism, thus adjust it is left,
Spacing between right plate, distance regulating mechanism includes the regulating bolt 21 that extends in left-right direction of axis, regulating bolt 21 with
Mechanism fixed plate 19 is threadedly coupled, and distance regulating mechanism also includes the bearing 22 that is connected with right plate of outer ring, the inner ring of bearing and
The left end of regulating bolt 21 is connected, during rotation regulating bolt 21, and regulating bolt 21 can drive right plate or so to move by bearing
It is dynamic.Right plate 15 is oriented to forward and backward side plate by guide frame and is slidably matched, and guide frame includes being arranged in forward and backward side plate
What side wall extended in left-right direction is oriented to the guiding with corresponding guiding groove adaptation set before and after groove 20 and right plate 15
Projection.Simultaneously in order to simulate progress feather plucking processing on more real distress in concrete situation, the opposite flank of left and right side plate,
To obtain larger roughness.Front side board, back side panel, left plate and right plate are made of clear material in the present embodiment, thoroughly
Bright material is acrylic material.Horizontal scale 17 and vertical scale 16 are provided with forward and backward side plate, can by horizontal scale 17
To determine the accurate spacing between left and right side plate, grout penetration can be determined by vertical scale 16.Left and right side plate and bottom plate
Between formed the open upper end that highly vertically extending, length extends along the longitudinal direction grouting seam 13, left and right side plate
Upper end is provided with up big and down small funnel-shaped structure 12.
Grouting material discharger is also provided with by support 6 on bottom plate 18, grouting material discharger includes the leakage with charging aperture 1
Bucket-shaped staving 2, staving is inverted butt side's pyramidal structure, and the discharging opening 5 of staving is the length that length extends along the longitudinal direction
Square structure, the length of discharging opening 5 is matched with the length of grouting seam 13.Grouting material discharger also includes being arranged at discharge outlet
It is installed with flashboard 11, flashboard 11 on flashboard rotating shaft 10, staving and is provided with axle sleeve 9, flashboard rotating shaft is rotatably assorted with axle sleeve.Flashboard
Rotating shaft is connected with rotating disk 8, rotating disk through axle sleeve 9 and is provided with arc-shaped slot, is set on bucket body sidewall corresponding with arc-shaped slot
There is rotating disk tightening screw 7.Discharging opening regulation scale 4 is provided with the rotating disk of the arc-shaped slot both sides.Turned by flashboard 11, flashboard
Axle 10, axle sleeve 9, rotating disk 8, rotating disk tightening screw 7 etc., which are constituted, can be precisely controlled the valve mechanism of grouting material rate of release.It is described
The outer rim of charging aperture 1 can be set with the frame 6, the setting of the support can make discharging opening 5 just at grouting seam 13 just on
Side.The madial wall of the staving is provided with the volume scale 3 that can determine that the grouting material amount of pouring into, during experiment, pours into the filling of discharger
Slurry is about 1.05~1.2 times of simulation fracture volume when simulation fracture reaches maximum setting width.The grouting material discharger
Material be stainless steel or acrylic.
The distress in concrete grouting material concrete castability test method comprises the following steps, step 1, by the grouting of the first proportioning
Material pour into results of fracture simulation experimental rig grouting seam in, by transparent left and right side plate observe the first match grouting material with
The relation that is engaged of left and right side plate；
Step 2, before the grouting material of the first proportioning is uncured, the grouting material progress to the first proportioning in grouting seam is clear
Wash, then the grouting material of second of proportioning is poured into the grouting seam, second of proportioning is observed by transparent left and right side plate
Grouting material and left and right side plate the relation that is engaged.
In the step 2, when being cleaned to the first grouting material matched in grouting seam, right plate and crack mould
The mechanism fixed plate for intending experimental rig is separated as an entirety on the forward and backward side plate of results of fracture simulation experimental rig, to left side
Plate and right plate are respectively washed.
In step 1, before the grouting material of the first proportioning is poured into the grouting seam of results of fracture simulation experimental rig, first lead to
The spacing crossed between distance regulating mechanism adjustment left and right side plate, in step 2, crack is poured into by the grouting material of second of proportioning
Before in the grouting seam of simulation test device, the spacing between adjustment left and right side plate makes to be in the milk in step 2 width and step of seam
Be in the milk in 1 seam width it is identical.
The grouting material and the proportioning difference of the grouting material of second of proportioning that the first in this method is matched refer to two kinds of fillings
The component of slurry is different or component is identical but ratios between different components are different.
Need to carry out following preparation before being in the milk, 1, get out agitator for cement mortar, results of fracture simulation examination
The test tools such as experiment device, grouting material discharger, shovel, charging tray and stopwatch.
2nd, results of fracture simulation experimental rig and grouting material discharger are assembled and be installed in place, regulation grouting seam is that simulation fracture is arrived
Width is set, discharging opening is closed with flashboard.
3rd, the grouting material of different mixture ratio is prepared by different application targets.
In specific filling process, the grouting material of preparation is disposably injected set volume mark is arrived in grouting material discharger
At chi, move rotating disk and drive the flashboard for being arranged at discharger discharging opening to setting position, grouting material is at the uniform velocity flowed from discharging opening
In the spout for entering results of fracture simulation experimental rig, while starting stopwatch carries out timing.
When grouting material irrigates full whole simulation fracture under Gravitative Loads or stops pouring into flowing, pass through transparent left side
Plate and right plate observation grouting material and the contact condition at simulation fracture interface, pour into simulation and split by stopwatch and vertical scale record
Infusion time used is stitched, plumpness is irrigated and pours into depth.（1）Infusion time：Grouting material irrigates full whole under Gravitative Loads
Individual simulation fracture or stopping pour into the time undergone during flowing；（2）Irrigate plumpness：Experience special time pours into simulation fracture
Grouting material volume account for the percentage of simulation fracture volume；（3）Pour into depth：Grouting material can pour into simulation fracture by deadweight
Depth capacity
After the completion of data record, the grouting material in simulation fracture is cleaned.According to different test accuracies, three can be in the milk
It is secondary（Or more time）, average respectively as the grouting material infusion time, irrigate plumpness and pour into depth.
In use, can facilitate to suitable spacing, the setting of divided edge structure between rotation regulating bolt, adjustment left and right side plate
Grouting material is poured into, because left and right side plate and forward and backward side plate are made of clear material, observation grouting material pour into depth and
The situation that is engaged of grouting material and left and right side plate, therefore comprehensive concrete castability data can be obtained, see whether grouting is full,
Before grouting material does not solidify also, wing nut of dismantling is cleaned to grouting material, to prevent grouting material to next filling process
Influence, because right plate and mechanism fixed plate are overall structure, left plate, front side board, back side panel are then tied with bottom plate to be overall
Structure, thus it is simple and convenient to the cleaning process of whole device, when carrying out next grouting test, adjustment left and right side plate and last time
The same spacing of experiment, pours into grouting seam by the grouting material of another proportioning, is relatively properly matched somebody with somebody to obtain by concrete castability data
The grouting material of ratio.This board slit simulation apparatus is simple in construction, using with it is easy to clean, comprehensive concrete castability data can be obtained, together
When also make it that the grouting material of each proportioning is tested under same crack standard, the data obtained with more compare property, it is only necessary to
Short period can just compare out properly mixed grouting material, substantially increase test efficiency.
In other embodiments of the invention：, can be with when needing to test more than the three kinds grouting materials matched
Carry out the 3rd step, the 4th step；Distance regulating mechanism may not be the threaded adjusting mechanism using regulating bolt, such as spacing
Governor motion is the governor motion of the achievable driving right plate movement such as driving cylinder, electric pushrod；Certain distance regulating mechanism
It can realize the spacing between left and right side plate by being connected with left and right side plate simultaneously and adjust；Guide groove on forward and backward side plate
Corresponding guide pad can not also be set with right plate, now, and right plate only can be oriented to by its side with forward and backward side plate matches somebody with somebody
Close.
The embodiment 1 of distress in concrete grouting material concrete castability test method is as shown in Figure 3-4：Embodiment 2 and embodiment 1 are not
With the right plate of results of fracture simulation experimental rig includes two pieces or so spaced apart right plate Part I 15-1 and right side
Plate Part II 15-2, is connected between right plate Part I and right plate Part II by connector, and grouting seam 13 is formed
Between left plate 14 and right plate Part I 15-1.Mechanism fixed plate 19 includes two mechanism fixed plates put to being sticked the
A part of 19-1 and mechanism fixed plate Part II 19-2, is embedded with the regulation spiral shell coordinated with regulating bolt 21 in mechanism fixed plate
Mother 31, bearing 22 is provided between the left end and right plate Part II 15-2 of regulating bolt 21.
Fastening screw 23 is fixed in screw rod fixed seat 4, and screw rod fixed seat 4 is fixed on corresponding side plate, solid in mechanism
The screw rod perforation that the confession anchorage bar 23 not extended on mechanism fixed plate side is installed is provided with fixed board.
Claims (7)
1. distress in concrete grouting material concrete castability test method, it is characterised in that this method comprises the following steps:Step 1, by
A kind of grouting material of proportioning is poured into the grouting seam of results of fracture simulation experimental rig, and the first is observed by transparent left and right side plate
The grouting material of proportioning and the relation that is engaged of left and right side plate；
Step 2, before the grouting material of the first proportioning is uncured, the grouting material progress to the first proportioning in grouting seam is clear
Wash, then the grouting material of second of proportioning is poured into the grouting seam, second of proportioning is observed by transparent left and right side plate
Grouting material and left and right side plate the relation that is engaged.
2. distress in concrete grouting material concrete castability test method according to claim 1, it is characterised in that：In the step
In 2, when being cleaned to the first grouting material matched in grouting seam, the mechanism of right plate and results of fracture simulation experimental rig consolidates
Fixed board is separated as an entirety on the forward and backward side plate of results of fracture simulation experimental rig, and left plate and right plate are distinguished
Cleaning.
3. distress in concrete grouting material concrete castability test method according to claim 1 or 2, it is characterised in that：In step 1
In, before the grouting material of the first proportioning is poured into the grouting seam of results of fracture simulation experimental rig, first pass through distance regulating mechanism
The spacing between left and right side plate is adjusted, in step 2, the grouting material of second of proportioning results of fracture simulation experimental rig is poured into
Before in grouting seam, the spacing between adjustment left and right side plate make to be in the milk in step 2 seam width and the seam that is in the milk in step 1 width
Degree is identical.
4. distress in concrete grouting material concrete castability test method according to claim 1, it is characterised in that：In step 1 and
In step 2, the grouting material is injected into grouting seam by grouting material discharger.
5. distress in concrete grouting material concrete castability test method according to claim 5, it is characterised in that：The grouting material
Discharger includes the staving with discharging opening, and discharge outlet is in the top of grouting seam, and discharge outlet, which is provided with, can adjust discharging opening
The flashboard of size.
6. distress in concrete grouting material concrete castability test method according to claim 5, it is characterised in that：Flashboard passes through lock
Plate axis of rotation is assemblied on the staving, is installed with flashboard on rotating disk, rotating disk and is provided with arc-shaped slot, is provided with staving
Through the rotating disk tightening screw of the arc-shaped slot.
7. distress in concrete grouting material concrete castability test method according to claim 6, it is characterised in that：Arc-shaped slot
At least side is provided with discharging opening regulation scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395925.4A CN107192793A (en) | 2017-05-31 | 2017-05-31 | Distress in concrete grouting material concrete castability test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710395925.4A CN107192793A (en) | 2017-05-31 | 2017-05-31 | Distress in concrete grouting material concrete castability test method |
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Cited By (2)
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| CN108169457A (en) * | 2017-12-26 | 2018-06-15 | 山东大学 | A kind of visualization becomes aperture crack grouting rig for model test and application method |
| CN113740517A (en) * | 2021-08-13 | 2021-12-03 | 上海宝冶集团有限公司 | Test device and test method for detecting grouting forming quality of steel pipe column base |
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| CN113740517A (en) * | 2021-08-13 | 2021-12-03 | 上海宝冶集团有限公司 | Test device and test method for detecting grouting forming quality of steel pipe column base |
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Application publication date: 20170922 |