CN214750317U - Mortar line shrinkage coefficient testing arrangement - Google Patents
Mortar line shrinkage coefficient testing arrangement Download PDFInfo
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- CN214750317U CN214750317U CN202120496268.4U CN202120496268U CN214750317U CN 214750317 U CN214750317 U CN 214750317U CN 202120496268 U CN202120496268 U CN 202120496268U CN 214750317 U CN214750317 U CN 214750317U
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Abstract
A mortar line shrinkage coefficient testing device comprises: data acquisition record appearance, high low temperature maintenance case, trigeminy examination mould, data acquisition record appearance set up at the interior top of high low temperature maintenance case, and the trigeminy examination mould sets up and just is located data acquisition record appearance's lower extreme at high low temperature maintenance incasement, the utility model discloses a trigeminy examination mould once can pour 3 test pieces, puts into high low temperature case and maintains, treats that test piece shaping back installation displacement and temperature sensor, and sensor data is gathered by data acquisition and record appearance, treats that experimental end derives experimental data from the data acquisition record appearance.
Description
Technical Field
The utility model relates to a and the experimental detection area of mortar, especially a mortar line shrinkage factor testing arrangement.
Background
Epoxy mortar is mortar with epoxy resin as cementing material and is widely used in the repair and reinforcement of highway, bridge, runway and other structures owing to its high strength, fast curing, high adhesion and other advantages. If the shrinkage rate is large, the material can generate shrinkage cracks, and the phenomenon of unrealistic pouring with the original structure occurs, so that the repairing quality is influenced. Therefore, the linear shrinkage coefficient of the epoxy mortar is one of important detection indexes.
At present, scholars at home and abroad research the linear shrinkage coefficient of epoxy resin, but the existing detection equipment has the following problems:
1. in the test, the test piece needs to be taken out from the environment box for reading, and the test piece is influenced by the room temperature after being taken out and changes very quickly, so that the error of the measurement result is caused.
2. The existing test mold can only test one test piece at a time, and the specification requires that each group tests at least three test pieces, so that the whole test process is long in time consumption.
3. The existing equipment cannot read and store data according to a certain time interval, and needs the side-station records of detection personnel, so that the work efficiency of the test personnel is not improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a mortar line shrinkage factor testing arrangement to realize that measuring error result is little, measuring time is short, can automatic reading data and the purpose of storage.
In order to realize the technical purpose, the technical scheme of the utility model is as follows:
a mortar line shrinkage coefficient testing device comprises: data acquisition record appearance, high low temperature maintenance case, trigeminy examination mould, data acquisition record appearance sets up high low temperature maintenance case's interior top, the trigeminy examination mould sets up in the high low temperature maintenance incasement and be located data acquisition record appearance's lower extreme, the trigeminy examination mould includes: the device comprises a steel groove, a displacement sensor, a pouring test mold base plate, a fixed sensor base plate, a sensor mounting device, a pouring test mold fixing rod and a heat insulation base; the steel groove sets up the center department of adiabatic base, the steel groove both sides are fixed to be set up pour the examination mould backing plate, pour the fixed setting in examination mould backing plate outside the fixed sensor backing plate, sensor installation device is fixed to be set up adiabatic base upper end just is located the steel groove both sides, displacement sensor sets up the center department in sensor installation device outside, it is fixed in to pour the examination mould dead lever in the fixed sensor backing plate, and pass respectively sensor installation device the steel groove pour the examination mould backing plate fixed sensor backing plate.
Preferably, the number of the sensor mounting devices is two, and the two sensor mounting devices are respectively positioned on two sides of the steel groove.
Further, two displacement sensors are arranged and are respectively arranged at the center of the side end of the sensor mounting device.
Preferably, the sensor mounting device is provided with a temperature sensor at the upper end.
Preferably, the data acquisition recorder is provided with a display.
Further, a window is arranged at the upper end of the high-low temperature curing box, and the display is arranged at the window.
Preferably, three triple test molds are arranged in the high-low temperature curing box.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a set up a mortar mixture line shrinkage coefficient testing arrangement, it is the regulation that the high low temperature curing box who adopts the purchase on the market carries out test piece maintenance temperature, 3 test pieces can be pour in the experiment of the trigeminy test mould that adopts the design by oneself, the testable three sample's of experiment test data, temperature sensor installs near trigeminy test mould top, can gather more accurate test piece maintenance temperature condition, displacement sensor installs the both ends at the test piece, the sensor is connected with data acquisition record appearance, record displacement value by oneself, the time of temperature value and collection, and is simple in operation, the testing process is simplified, improve the staff's work efficiency of detection.
Drawings
Fig. 1 is a schematic structural diagram of a mortar line shrinkage coefficient testing device of the present invention;
FIG. 2 is a schematic diagram of the triple test pattern distribution of the mortar line shrinkage coefficient testing device of the present invention;
FIG. 3 is a schematic diagram of a triple test pattern structure of the mortar line shrinkage coefficient testing device of the present invention;
reference numerals: 1. steel bay, 2, displacement sensor, 3, temperature sensor, 4, pour the examination mould backing plate, 5, fixed sensor backing plate, 6, sensor installation device, 7, pour the examination mould dead lever, 8, adiabatic base, 9, data acquisition record appearance, 10, display, 11, high low temperature maintenance case, 12, trigeminy examination mould.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, feature details such as specific configurations and components are provided only to help a full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
With reference to the accompanying drawings 1-3, the utility model provides a mortar line shrinkage factor testing arrangement, include: data acquisition record appearance 9, high low temperature maintenance case 11, trigeminy examination mould 12, wherein, trigeminy examination mould 12 includes: the device comprises a steel groove 1, a displacement sensor 2, a pouring test mold base plate 4, a fixed sensor base plate 5, a sensor mounting device 6, a pouring test mold fixing rod 7 and a heat insulation base 8; data acquisition record appearance 9 sets up the interior top at high low temperature maintenance box 11, trigeminy test mould 12 sets up in high low temperature maintenance box 11 and is located the lower extreme of data acquisition record appearance 9, steel bay 1 sets up the center department in adiabatic base 8 upper end, the both ends of steel bay 1 set up respectively and pour test mould backing plate 4, pour the fixed sensor backing plate 5 that sets up in the test mould backing plate 4 outside, wherein, pour test mould backing plate 4, fixed sensor backing plate 5 all is equipped with two, sensor installation device 6 is fixed to be set up in adiabatic base 8 upper end and is located steel bay 1 both sides, displacement sensor 2 sets up the center department in the sensor installation device 6 outside, it is fixed in fixed sensor backing plate 5 to pour test mould dead lever 7, and pass sensor installation device 6 respectively, steel bay 1, test mould backing plate 4, fixed sensor backing plate 5.
Preferably, sensor installation device 6 is equipped with two, is located 1 both sides in steel bay respectively, and displacement sensor 2 is equipped with two, sets up respectively in 6 side center departments of sensor installation device, sets up a plurality of displacement sensor 6 at the both ends of test piece, and the sensor is connected with the data acquisition record appearance, records the displacement value by oneself, easy operation, and testing process simplifies, improves measurement personnel work efficiency.
Preferably, sensor installation device 6 upper end is equipped with temperature sensor 3, and temperature sensor 3 installs near trigeminy examination mould top, can gather more accurate test piece maintenance temperature condition.
Preferably, the data acquisition recorder 9 is provided with a display 10, the upper end of the high-low temperature curing box 11 is provided with a window, and the display 10 is arranged at the window.
Preferably, three triple test molds 12 are arranged in the high-low temperature curing box 11.
Example 1
The medium-high temperature and low-temperature curing box in the device requires that the temperature in the box is in the range of minus 25 ℃ to plus 50 ℃, the temperature variation is kept at plus or minus 2 ℃, and the internal dimension is not less than 50cm (length) x50cm (width) x30cm (height).
A small hole (about 5 cm) is arranged on the high-low temperature box, and a displacement and temperature sensor on the triple test die can be connected to a data acquisition recorder through the hole.
The data acquisition instrument records displacement, temperature and time. According to the standard requirements, the recorder is divided into a first stage recording, a second stage recording and a third stage recording according to different time intervals. The first stage records displacement and temperature every 5min until the mortar is completely solidified for 1h, and records the displacement and temperature every 15min within 23h, which is called as the second stage. The third phase is to record the reading every 1h for the next 24h, and record the time, displacement and temperature every time.
The testing method mainly comprises the following steps:
And 2, installing a test mold according to the figure 2, firstly screwing down and pouring a test mold fixing rod 7, and spraying a layer of thin-layer silicone aerosol in the test mold.
And 3, mixing mortar according to the technical specification of epoxy resin mortar (DL/T5193-.
And 4, loosening 7 (pouring a test mold fixing rod) after the test piece is molded. And (5) mounting a displacement sensor.
And 5, after 48h, ending the test, and exporting test data. Including the left and right sensor readings δ i1, δ i2(i ═ 1,2,3) for each specimen.
And 6, testing and recording the length Ls of the hardened test piece. Length Lm between central lines of bottom of steel tank at normal temperature
And 7, calculating shrinkage deformation according to test data according to the technical specification of epoxy resin mortar (DL/T5193-2004).
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A mortar line shrinkage coefficient testing device is characterized by comprising: data acquisition record appearance (9), high low temperature maintenance case (11), trigeminy examination mould (12), data acquisition record appearance (9) set up the interior top of high low temperature maintenance case (11), trigeminy examination mould (12) set up in high low temperature maintenance case (11) and be located the lower extreme of data acquisition record appearance (9), trigeminy examination mould (12) include: the device comprises a steel groove (1), a displacement sensor (2), a pouring test mold base plate (4), a fixed sensor base plate (5), a sensor installation device (6), a pouring test mold fixing rod (7) and a heat insulation base (8); the steel groove (1) is arranged at the center of the heat insulation base (8), the steel groove (1) is fixedly arranged on two sides of the heat insulation base, the test die base plate (4) is poured, the outer side of the test die base plate (4) is fixedly arranged on the fixed sensor base plate (5), the sensor installation device (6) is fixedly arranged on the upper end of the heat insulation base (8) and located on two sides of the steel groove (1), the displacement sensor (2) is arranged at the center of the outer side of the sensor installation device (6), the test die fixing rod (7) is fixed in the fixed sensor base plate (5) and penetrates through the sensor installation device (6) respectively, the steel groove (1), the test die base plate (4) is poured and the fixed sensor base plate (5).
2. The mortar line shrinkage factor testing device of claim 1, wherein two sensor mounting devices (6) are arranged, and are respectively positioned at two sides of the steel groove (1).
3. The mortar line shrinkage factor testing device of claim 2, wherein two displacement sensors (2) are provided, and are respectively arranged at the center of the side end of the sensor mounting device (6).
4. The mortar line shrinkage factor testing device of claim 1, wherein the sensor mounting device (6) is provided with a temperature sensor (3) at the upper end.
5. The mortar line shrinkage factor testing device of claim 1, wherein the data acquisition recorder (9) is provided with a display (10).
6. The mortar line shrinkage coefficient testing device of claim 5, wherein a window is arranged at the upper end of the high and low temperature curing box (11), and the display (10) is arranged at the window.
7. The mortar line shrinkage factor testing device of claim 1, wherein three triple test molds (12) are arranged in the high-low temperature curing box (11).
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| CN202120496268.4U CN214750317U (en) | 2021-03-09 | 2021-03-09 | Mortar line shrinkage coefficient testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114002261A (en) * | 2021-11-29 | 2022-02-01 | 广西交科集团有限公司 | Asphalt mixture linear shrinkage coefficient measuring device and using method thereof |
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- 2021-03-09 CN CN202120496268.4U patent/CN214750317U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114002261A (en) * | 2021-11-29 | 2022-02-01 | 广西交科集团有限公司 | Asphalt mixture linear shrinkage coefficient measuring device and using method thereof |
| CN114002261B (en) * | 2021-11-29 | 2024-02-20 | 广西交科集团有限公司 | Asphalt mixture line shrinkage coefficient measuring device and using method thereof |
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