CN114544921B - Device and method for measuring uneven shrinkage of inorganic binder stabilizing material - Google Patents
Device and method for measuring uneven shrinkage of inorganic binder stabilizing material Download PDFInfo
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- CN114544921B CN114544921B CN202210026542.0A CN202210026542A CN114544921B CN 114544921 B CN114544921 B CN 114544921B CN 202210026542 A CN202210026542 A CN 202210026542A CN 114544921 B CN114544921 B CN 114544921B
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- 239000000463 material Substances 0.000 title claims abstract description 35
- 239000011230 binding agent Substances 0.000 title claims abstract description 33
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 74
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The application discloses a device and a method for measuring uneven shrinkage of an inorganic binder stabilizing material, and relates to the technical field of highway instruments. The non-uniform shrinkage of the inorganic binder stabilizing material can be directly detected, and more accurate index information is provided for road performance detection of the semi-rigid base layer. The device for measuring the uneven shrinkage of the inorganic binder stabilizing material comprises a test piece base, a measuring table, a vertical bracket, a transverse bracket and a transmission device; the test piece base is used for placing a beam test piece to be tested; the lateral surface of the test piece base is provided with a transverse guide rail; the transverse bracket is in sliding connection with the test piece base; two ends of the vertical support are respectively connected with the transverse support and the measuring table; a displacement measuring device is arranged on the measuring table; a transmission device is also arranged on the test piece base; the transmission device can drive the transverse bracket to slide along the extending direction of the transverse guide rail. The application also provides a measuring method based on the device for measuring the uneven shrinkage of the inorganic binder stabilizing material.
Description
Technical Field
The application relates to the technical field of highway instruments, in particular to a device and a method for measuring uneven shrinkage of an inorganic binder stabilizing material.
Background
The road semi-rigid base layer is mainly formed by rolling a certain aggregate grading and inorganic binder under the condition of optimal water content, and is made into a semi-rigid structural layer through hydration reaction for a period of time. During the period, the top surface of the base layer often generates transverse cracks, and then the transverse cracks are reflected to the asphalt pavement to form reflection cracks, so that the durability, the safety and the stability of the road are reduced.
The main reasons for generating the cracks of the base layer are that the moisture of the base layer is continuously evaporated, and capillary tubes are formed to generate adsorption force on the surface of the material, so that the inorganic binder stabilizes the volume shrinkage of the material to generate cracks, and the generated stress exceeds the resistance of the material to generate cracks possibly due to the simultaneous occurrence of the shrinkage and the expansion of the material.
The traditional method for checking the cracks is a T0854-2009 inorganic binder stabilizing material shrinkage test method in JTG E51-2009 highway engineering inorganic binder stabilizing material test procedure. The method can only detect the whole drying shrinkage condition of the beam test piece, but can not directly observe the uneven shrinkage caused by the expansion of the material. Therefore, the application detects the uneven shrinkage of the inorganic binder stabilizing material, thereby providing better data support for the crack suppression of the semi-rigid base layer.
Disclosure of Invention
The embodiment of the application provides a device and a method for measuring the uneven shrinkage of an inorganic binder stabilizing material, which can directly detect the uneven shrinkage of the inorganic binder stabilizing material and provide more accurate index information for the road performance detection of a semi-rigid base layer.
In order to achieve the above purpose, in one aspect, an embodiment of the present application provides an apparatus for measuring uneven shrinkage of an inorganic binder stabilizing material, including a test piece base, a measuring table, a vertical support, a horizontal support, and a transmission device; the test piece base is used for placing a beam test piece to be tested; a transverse guide rail is arranged on the side surface of the test piece base; the transverse bracket is in sliding connection with the test piece base; two ends of the vertical support are respectively connected with the transverse support and the measuring table; the measuring table is provided with a displacement measuring device; a transmission device is further arranged on the test piece base; the transmission device can drive the transverse bracket to slide along the extending direction of the transverse guide rail.
Further, the transverse support is provided with a roller group, the roller group comprises two rollers, the two rollers can slide in the transverse guide rail, and the two rollers are respectively close to the left edge and the right edge of the transverse support.
Further, two transverse guide rails are arranged in parallel up and down; the number of the roller groups is two, and the two roller groups are in one-to-one correspondence with the two transverse guide rails.
Further, the measuring table is detachably connected to the vertical support; the vertical support is provided with a vertical sliding rail, one side of the measuring table, which is close to the vertical support, is provided with a sliding block which is matched with the vertical sliding rail, and the idler wheel of the displacement measuring device extends out of one side of the measuring table, which is far away from the vertical support.
Further, a plurality of leveling knobs are arranged at the bottom of the test piece base.
Further, the transmission device comprises a speed reducing motor, a first gear, a second gear and a crawler belt; the speed reducing motor is fixed on the test piece base, the first gear is arranged on an output shaft of the speed reducing motor, the second gear is connected to the side wall of the test piece base through a rotating shaft, and the crawler belt is meshed with the first gear and the second gear and is tensioned between the first gear and the second gear.
Further, the device further comprises a control unit, wherein the control unit is electrically connected with the gear motor, and the control unit can control the gear motor to start and stop, so that the transverse support is stopped at a plurality of preset positions, and the distances between two adjacent preset positions are equal.
On the other hand, the embodiment of the application also provides a measuring method based on the device for measuring the nonuniform shrinkage of the inorganic binder stabilizing material, which comprises the following steps: measuring the deformation of a beam test piece to be tested at a preset time point; the preset time point comprises a test piece age of final setting time, 30 days, 60 days, 90 days and 180 days; step 1.1, placing a beam test piece to be tested on a preset position of a test piece base; step 1.2, marking the position of a starting point on the left edge of one side, close to the transverse bracket, of the beam test piece to be tested; step 1.3, adjusting a transverse bracket and a vertical bracket to ensure that a displacement measuring device corresponds to a starting point on the edge of a beam test piece to be tested, and acquiring a first measured value of the displacement measuring device; step 1.4, starting a control unit, and acquiring the rest measured values of the displacement measuring device at each stop position of the transverse bracket; and step two, solving variance of the data obtained in each age, and reflecting the non-uniform shrinkage of the inorganic binder stabilizing material according to the variance.
Further, the number of the starting points is plural, the distances between two adjacent starting points are equal, and the distance between the starting point at the upper end and the upper vertex and the distance between the starting point at the lower end and the lower vertex are both larger than 1cm.
Further, step 1.5 is further included after step 1.3, and step 1.2 to step 1.4 are repeated after the beam test piece to be tested is horizontally rotated by 180 degrees.
Compared with the prior art, the application has the following beneficial effects:
1. according to the device for measuring the uneven shrinkage of the inorganic binder stabilizing material, disclosed by the embodiment of the application, the measuring table is driven to slide along the test piece base through the caterpillar band in the transmission device, and the starting and stopping of the gear motor in the transmission device are controlled through the control unit, so that the measuring table moves according to a set distance and keeps for a certain time to move next time, and further the uniformity and the recordable property of a data acquisition point are ensured, so that the uneven shrinkage of the inorganic binder stabilizing material can be directly detected, and more accurate index information is provided for the road performance detection of a semi-rigid base layer.
2. According to the method for measuring the uneven shrinkage of the inorganic binder stabilizing material, disclosed by the embodiment of the application, the deformation of the same position is detected in different ages of a test piece, the obtained data is subjected to variance, and the uneven shrinkage of the inorganic binder stabilizing material is reflected according to the variance, so that the detection result is more visual and accurate.
3. According to the method for measuring the uneven shrinkage of the inorganic binder stabilizing material, disclosed by the embodiment of the application, more data are obtained by measuring a plurality of groups of values on the two opposite side surfaces of the beam-type test piece to be measured and at different heights of the side surfaces, and the detected uneven shrinkage of the inorganic binder is more accurate.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an apparatus for measuring non-uniform shrinkage of an inorganic binder stabilizing material according to an embodiment of the present application;
FIG. 2 is a schematic perspective view of another angle of an apparatus for measuring non-uniform shrinkage of an inorganic binder stabilizing material according to an embodiment of the present application;
FIG. 3 is a schematic diagram showing the connection structure of a transverse bracket, a vertical bracket, a measuring table and a transmission device in an apparatus for measuring uneven shrinkage of an inorganic binder stabilizing material according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a connection structure between a vertical support and a measuring table in an apparatus for measuring uneven shrinkage of an inorganic binder stabilizing material according to an embodiment of the present application;
fig. 5 is a schematic perspective view of a test piece base in the device for measuring uneven shrinkage of an inorganic binder stabilizing material according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Referring to fig. 1 and 2, an embodiment of the present application provides an apparatus for measuring non-uniform shrinkage of an inorganic binder stabilizing material, which includes a test piece base 1, a measuring table 2, a vertical support 3, a horizontal support 4, a driving device 5, and a control unit (not shown). The test piece base 1 is used for placing a beam test piece 8 to be tested. The side of test piece base 1 is equipped with transverse guide 11, and transverse support 4 and test piece base 1 sliding connection, transverse support 4 and measuring table 2 are connected respectively at the both ends of vertical support 3. The measuring table 2 is provided with a displacement measuring device 6. The test piece base 1 is also provided with a transmission device 5, and the transmission device 5 can drive the transverse bracket 4 to slide along the extending direction of the transverse guide rail 11.
Referring to fig. 3, the test piece base 1 is a cuboid, the upper surface of the test piece base 1 is used for placing the beam test piece 8 to be tested, and the locating plate 13 is arranged on the upper surface of the test piece base 1, so that the beam test piece 8 to be tested can be accurately located, the detection precision is improved, and the operation is convenient. The number of the transverse guide rails 11 is two, and the two transverse guide rails 11 are arranged on the front side surface of the test piece base 1 in an up-down parallel mode. The dimensions of the transverse guide 11 need to be strictly controlled, avoiding the whole device from overturning during the measurement. The bottom of the test piece base 1 is provided with a plurality of leveling knobs 12, leveling can be performed through the leveling knobs 12, leveling bubbles can be arranged on the leveling knobs, and verification can be performed through external equipment.
Referring to fig. 1 and 4, the lateral bracket 4 is a hollow cube with a forward opening, and is internally provided with a track connecting device 41, and the transmission device 5 is connected to the track connecting device 41. Two groups of roller groups are arranged on the rear side surface of the transverse support 4, and the two groups of roller groups are in one-to-one correspondence with the two groups of transverse guide rails 11. The two sets of rollers comprise two rollers 42, the two rollers 42 can slide in the transverse guide rail 11, and the two rollers 42 are respectively close to the left edge and the right edge of the transverse bracket 4.
Referring to fig. 4 and 5, a vertical bracket 3 is connected to the upper surface of the transverse bracket 4, a vertical sliding rail 31 is arranged on the vertical bracket 3, the measuring table 2 is a rectangular plate, and a sliding block matched with the vertical sliding rail 31 is arranged on the front side surface of the measuring table 2. Specifically, the number of the vertical sliding rails 31 is two, and the two vertical sliding rails 31 are symmetrically arranged relative to the center line of the vertical bracket 3 in the left-right direction and are respectively close to the left edge and the right edge of the vertical bracket 3.
In order to facilitate the adjustment of the height of the measuring table 2, the measuring table 2 is detachably connected to the vertical support 3. Specifically, two elongated holes 32 extending along the vertical direction are formed in the vertical support 3, and the two elongated holes 32 are located between the two vertical sliding rails 31 and are symmetrically arranged relative to the center line of the vertical support 3 in the left-right direction. The measuring table 2 is provided with two threaded holes, and one end of the bolt 21 passes through the corresponding strip hole 32 and is fastened with the measuring table 2.
The measuring table 2 is provided with a displacement measuring device 6, and in some embodiments, the displacement measuring device 6 is a dial indicator, on which a dial indicator roller 7 is mounted, and the dial indicator roller 7 extends out of one side of the measuring table 2 away from the vertical support 3. In other embodiments, the displacement measuring device 6 may also be a displacement sensor, without limitation.
Referring to fig. 2, the transmission 5 includes a speed reduction motor 51, a driving gear 52, a driven gear 53, and a crawler belt 54. The gear motor 51 is fixed on the left side of the test piece base 1, the driving gear 52 is arranged on the output shaft of the gear motor 51, the driven gear 53 is connected on the right side wall of the test piece base 1 through a rotating shaft, the crawler belt 54 is meshed with both the driving gear 52 and the driven gear 53, and the crawler belt is tensioned between the driving gear 52 and the driven gear 53.
The control unit is electrically connected with the gear motor 51, and the control unit can control the start and stop of the gear motor 51, so that the transverse support 4 is stopped at a plurality of preset positions, and the distances between two adjacent preset positions are equal.
The installation and use processes of the device for measuring the uneven shrinkage of the inorganic binder stabilizing material in the embodiment of the application are as follows:
in the first step, the test piece base 1 is placed in a flat area, and the leveling knob 12 is turned to level the upper surface of the test piece base 1, so that no large error exists in the later data collection.
In a second step, the measuring table 2 is connected to the vertical support 3 such that the measuring table 2 can slide freely in the vertical slide rail 31. It should be noted that: when the bolts 21 are passed through the elongated holes 32 and then connected to the measuring table 2, the measuring table 2 should be kept stationary.
And thirdly, connecting the transverse bracket 4 with the test piece base 1, so that the four rollers 42 can freely slide in the corresponding transverse sliding rail 11, and no looseness can occur inside and outside, so as to ensure that no larger error can occur in the acquired data.
And fourthly, connecting the device assembled in the second step with the transverse support 4, limiting the degree of freedom of the device, and guaranteeing the accuracy of data.
And fifthly, installing the transmission device 5 and the test piece base 1, after installing the gear motor 51, the driving gear 52 and the driven gear 53 in a fixed area, enabling the crawler 54 on one side to pass through the transverse support 4, enabling the crawler 54 to be connected with the crawler fixing device 41 in the transverse support 4 by adopting screws or other means so that the crawler 54 and the crawler fixing device 41 cannot be separated, then enabling the crawler 54 to be meshed with the driving gear 52 and the driven gear 53, enabling the crawler 54 on the other side to be connected with the crawler fixing device 41, adjusting the tightness degree of the crawler, and finally enabling the gear motor 51 to be electrically connected with the control unit.
And sixthly, powering on the device, opening the control unit, and checking whether the measuring table 2 moves at equal intervals and equal time difference.
And seventh, mounting the dial indicator roller 7 on the end part of the dial indicator, wherein the dial indicator roller 7 can rotate freely and is firmly mounted with the dial indicator.
On the other hand, the embodiment of the application also provides a measuring method based on the device for measuring the nonuniform shrinkage of the inorganic binder stabilizing material, which comprises the following steps:
s1, after the device is installed, taking out the beam test piece 8 to be tested which is just molded (the test piece age is equal to the final setting time), enabling the rear side surface A of the beam test piece to be clung to the positioning plate 13, and enabling the front side surface B of the beam test piece to face the measuring table 2.
S2, dividing the edge B1 of the beam test piece into a plurality of parts by removing the rest part 1cm away from the upper edge and the lower edge, recommending 5-15 parts by equal division, adjusting according to the beam test pieces with different sizes, and marking by using a marker pen after equal division.
S3, adjusting the transverse support 4 to enable the center line of the upper measuring table 2 to slightly deviate from the edge of the beam test piece B1.
S4, adjusting the vertical support 3 to enable the roller of the dial indicator to contact the highest mark, and screwing the bolt 21 after the dial indicator reads, so that the dial indicator is fixed.
S5, the control unit drives the gear motor 51 to rotate, so that the roller of the dial indicator can slide on the front side face B of the beam test piece, the value of the dial indicator is recorded when the sliding is stopped, the sliding distance is recommended to be 0.5cm-1.5cm, and the sliding distance is adjusted according to the beam test pieces with different sizes. This step is repeated until sliding off the side B2 of the beam test piece.
S6, after the beam test piece 8 to be tested horizontally rotates 180 degrees, repeating the steps S2 to S5.
And S7, placing the beam test piece 8 to be tested in a drying shrinkage chamber after the measurement is finished, and noticing that the test piece cannot be damaged in the carrying process.
S8, repeating the steps S1-S7 until the test piece ages to 30 days, 60 days, 90 days and 180 days, and stopping detection after 180 days.
And S9, solving variances of the data obtained in each age, and reflecting the uneven shrinkage of the inorganic binder stabilizing material according to the variances.
The present application is not limited to the above embodiments, and any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims (1)
1. The measuring device comprises a test piece base, a measuring table, a vertical bracket, a transverse bracket and a transmission device; the test piece base is used for placing a beam test piece to be tested; the bottom of the test piece base is provided with a plurality of leveling knobs; a transverse guide rail is arranged on the side surface of the test piece base; the transverse bracket is in sliding connection with the test piece base; two ends of the vertical support are respectively connected with the transverse support and the measuring table; the measuring table is provided with a displacement measuring device; the displacement measuring device is a dial indicator, and a dial indicator roller is arranged on the dial indicator; a transmission device is further arranged on the test piece base; the transmission device can drive the transverse bracket to slide along the extending direction of the transverse guide rail; it is characterized in that the method comprises the steps of,
the method comprises the following steps:
measuring the deformation of a beam test piece to be tested at a preset time point; the preset time point comprises a test piece age of final setting time, 30 days, 60 days, 90 days and 180 days;
step 1.1, placing a beam test piece to be tested on a preset position of a test piece base;
step 1.2, marking the position of a starting point on the left edge of one side, close to the transverse bracket, of the beam test piece to be tested;
step 1.3, adjusting a transverse bracket and a vertical bracket to ensure that a displacement measuring device corresponds to a starting point on the edge of a beam test piece to be tested, and acquiring a first measured value of the displacement measuring device;
step 1.4, starting a control unit, and acquiring the rest measured values of the displacement measuring device at each stop position of the transverse bracket;
step 1.5, after horizontally rotating the beam test piece to be tested by 180 degrees, repeating the steps 1.2 to 1.4;
solving variance of data obtained in each age, and reflecting non-uniform shrinkage of the inorganic binder stabilizing material according to the variance;
the number of the starting points is multiple, the distance between two adjacent starting points is equal, and the distance between the starting point and the upper vertex at the upper end and the distance between the starting point and the lower vertex at the lower end are both larger than 1cm.
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| CN202210026542.0A CN114544921B (en) | 2022-01-11 | 2022-01-11 | Device and method for measuring uneven shrinkage of inorganic binder stabilizing material |
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| CN202210026542.0A CN114544921B (en) | 2022-01-11 | 2022-01-11 | Device and method for measuring uneven shrinkage of inorganic binder stabilizing material |
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| CN114544921B true CN114544921B (en) | 2023-11-07 |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141724A (en) * | 1999-11-12 | 2001-05-25 | Taiheiyo Cement Corp | Self-shrinkage measuring device for cement-based material |
| CN101221164A (en) * | 2008-01-16 | 2008-07-16 | 哈尔滨工业大学 | Cement concrete self-restriction contraction stress test approach |
| CN104475356A (en) * | 2013-07-31 | 2015-04-01 | 山东省农作物种质资源中心 | Screening method of mildewed seeds |
| CN105674906A (en) * | 2016-01-26 | 2016-06-15 | 同济大学 | Shrinkage deformation tester for road material at full age and using method of tester |
| CN106248039A (en) * | 2016-08-15 | 2016-12-21 | 天津全智生产力促进有限公司 | Long Axle Parts concentricity testing device |
| CN207163353U (en) * | 2017-08-18 | 2018-03-30 | 北新集团建材股份有限公司 | For testing the test stand of sheet deformation |
| CN109632869A (en) * | 2019-01-31 | 2019-04-16 | 武汉科技大学 | Refractory material image collecting device based on machine vision |
| CN208752075U (en) * | 2018-09-04 | 2019-04-16 | 陈继忠 | A kind of concrete shrinkage experimental rig |
| CN210243660U (en) * | 2019-07-13 | 2020-04-03 | 深圳市盐田港建筑工程检测有限公司 | Mortar vertical expansion rate measuring device |
| CN210400444U (en) * | 2019-10-21 | 2020-04-24 | 韶关点睛信息科技有限公司 | Device convenient for data mining and capable of conducting visual positioning detection through manipulator |
| CN211317224U (en) * | 2019-12-02 | 2020-08-21 | 武汉金涛岩土工程有限公司 | Diversified measuring device of ground shrink performance |
| CN211875477U (en) * | 2019-12-20 | 2020-11-06 | 长沙理工大学 | Semi-rigid material drying shrinkage test placing support |
| CN213053282U (en) * | 2020-06-17 | 2021-04-27 | 南京颖瑞数控科技有限公司 | High-speed gantry machining center beam guide rail structure |
| CN214585442U (en) * | 2021-04-30 | 2021-11-02 | 宁波成合新材料有限公司 | Concrete shrinkage factor experimental apparatus |
| CN214703639U (en) * | 2021-04-30 | 2021-11-12 | 路万东 | Contact type testing device for cement concrete expansion and contraction test |
-
2022
- 2022-01-11 CN CN202210026542.0A patent/CN114544921B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001141724A (en) * | 1999-11-12 | 2001-05-25 | Taiheiyo Cement Corp | Self-shrinkage measuring device for cement-based material |
| CN101221164A (en) * | 2008-01-16 | 2008-07-16 | 哈尔滨工业大学 | Cement concrete self-restriction contraction stress test approach |
| CN104475356A (en) * | 2013-07-31 | 2015-04-01 | 山东省农作物种质资源中心 | Screening method of mildewed seeds |
| CN105674906A (en) * | 2016-01-26 | 2016-06-15 | 同济大学 | Shrinkage deformation tester for road material at full age and using method of tester |
| CN106248039A (en) * | 2016-08-15 | 2016-12-21 | 天津全智生产力促进有限公司 | Long Axle Parts concentricity testing device |
| CN207163353U (en) * | 2017-08-18 | 2018-03-30 | 北新集团建材股份有限公司 | For testing the test stand of sheet deformation |
| CN208752075U (en) * | 2018-09-04 | 2019-04-16 | 陈继忠 | A kind of concrete shrinkage experimental rig |
| CN109632869A (en) * | 2019-01-31 | 2019-04-16 | 武汉科技大学 | Refractory material image collecting device based on machine vision |
| CN210243660U (en) * | 2019-07-13 | 2020-04-03 | 深圳市盐田港建筑工程检测有限公司 | Mortar vertical expansion rate measuring device |
| CN210400444U (en) * | 2019-10-21 | 2020-04-24 | 韶关点睛信息科技有限公司 | Device convenient for data mining and capable of conducting visual positioning detection through manipulator |
| CN211317224U (en) * | 2019-12-02 | 2020-08-21 | 武汉金涛岩土工程有限公司 | Diversified measuring device of ground shrink performance |
| CN211875477U (en) * | 2019-12-20 | 2020-11-06 | 长沙理工大学 | Semi-rigid material drying shrinkage test placing support |
| CN213053282U (en) * | 2020-06-17 | 2021-04-27 | 南京颖瑞数控科技有限公司 | High-speed gantry machining center beam guide rail structure |
| CN214585442U (en) * | 2021-04-30 | 2021-11-02 | 宁波成合新材料有限公司 | Concrete shrinkage factor experimental apparatus |
| CN214703639U (en) * | 2021-04-30 | 2021-11-12 | 路万东 | Contact type testing device for cement concrete expansion and contraction test |
Non-Patent Citations (6)
| Title |
|---|
| 寒区水泥混凝土路面不均匀变形的观测与探讨;辛德仁等;《辽宁交通科技》;20000630(第03期);第10-13页 * |
| 掺乳化沥青半刚性基层混合料的强度与收缩性研究;杨锡武等;《山东交通学院学报》;第17卷(第01期);第60-66页 * |
| 横肋分布特征对带肋钢筋轴向变形分布的影响;郝瑞华等;《中国冶金》;20050331(第03期);第25-28、38页 * |
| 郝瑞华等.横肋分布特征对带肋钢筋轴向变形分布的影响.《中国冶金》.2005,(第03期), * |
| 高性能混凝土板式构件的早期收缩特性及预测模型;李国栋等;《土木建筑与环境工程》;20170228(第01期);第93-100页 * |
| 高温后水泥砂浆试件抗压性能与变形场演化实验研究;王来贵等;《实验力学》;20180430(第02期);第307- 317页 * |
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