CN113049446A - Mechanical automatic stress application mortar compressive strength detector and use method thereof - Google Patents
Mechanical automatic stress application mortar compressive strength detector and use method thereof Download PDFInfo
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- CN113049446A CN113049446A CN202110301413.3A CN202110301413A CN113049446A CN 113049446 A CN113049446 A CN 113049446A CN 202110301413 A CN202110301413 A CN 202110301413A CN 113049446 A CN113049446 A CN 113049446A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005259 measurement Methods 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 230000035515 penetration Effects 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000011449 brick Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 229910001315 Tool steel Inorganic materials 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004566 building material Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 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
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/12—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring rising or falling speed of the body; by measuring penetration of wedged gauges
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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Abstract
The invention discloses a mechanical automatic stress application mortar compressive strength detector and a use method thereof, wherein the detector comprises: the injection device comprises a shell, a drawing unit, a support and a measuring nail; the support is fixed in the shell, the drawing unit is installed on the support and connected with the measuring nail, and the drawing unit can drive the measuring nail to penetrate into the masonry structure to form a measuring hole; the measuring device can carry out depth measurement on the measuring hole and automatically obtain measuring data, and the measuring device can also carry out analysis processing on the measuring data. The invention realizes automatic stress application, convenient operation and high detection efficiency; and the current manual reading and counting mode is changed, the mortar compressive strength is automatically read, analyzed and wirelessly transmitted, and the intelligent level is high.
Description
Technical Field
The invention relates to the technical field of building material strength detection, in particular to a mechanical automatic stress application mortar compressive strength detector and a using method thereof.
Background
The masonry structure has the advantages of energy conservation, good durability, good fire resistance, easy local material taking and construction, and is widely applied in China. Masonry structure buildings are affected by factors such as construction quality, environmental factors, natural disasters and the like, or need to be detected and identified before maintenance, reinforcement and reconstruction. The masonry mortar or cement mortar is mainly used as the bonding material of the masonry structure, and the compressive strength of the masonry mortar is the same as that of the masonry block material, which is a key index for measuring the overall strength of the masonry structure, so that the accurate and efficient measurement of the compressive strength of the mortar is an important task in the house inspection work of the masonry structure.
The current mortar compression strength detection method mainly comprises a rebound method and a penetration method. The rebound method adopts a mortar resiliometer to detect the mortar strength at the mortar joint of the masonry, is simple to operate, but is not suitable for detecting the mortar with low compressive strength (less than 2.0MPa), and has no national uniform technical specification and standard. The injection method adopts a compression working spring to apply force and then injects the measuring nail into the mortar, and the compressive strength of the masonry mortar is converted through the strength measuring curve according to the depth value of the injection of the measuring nail. The injection method does not need to remove the mortar joint surface protective layer, and has the advantages of high detection speed, low cost, high precision and wide application range. An instrument and a method for detecting the compressive strength of mortar by using a penetration method are specified in the construction standard 'technical specification for detecting the compressive strength of masonry mortar by using the penetration method' (JGJ/T136-2017) in the building engineering industry. The mortar compressive strength detection instrument specified in JGJ/T136-2017 comprises a penetrometer and a penetration depth measuring meter. When a common penetrometer in the current market applies force, an operator needs to apply rebound force to the penetrometer through the force applying rod and the force applying groove, so that the workload of detection personnel is increased, and the field detection speed is reduced; meanwhile, the penetration depth measuring meter needs to calculate the compressive strength value of the mortar after detection data are manually recorded by detection personnel, the field detection consumes time and labor, the data cannot be wirelessly transmitted, the data storage is complicated, the workload of subsequent data processing is large, and the intelligent and digital levels are low.
Disclosure of Invention
Therefore, in order to solve the above technical problems, it is necessary to provide a method for using a mechanical automatic force-applying mortar compressive strength detector with high detection efficiency and high automation and intelligence levels.
The utility model provides a mechanical automatic afterburning mortar compressive strength detector, it includes:
the injection device comprises a shell, a drawing unit, a support and a measuring nail; the support is fixed in the shell, the drawing unit is installed on the support and connected with the measuring nail, and the drawing unit can drive the measuring nail to penetrate into the masonry structure to form a measuring hole;
the measuring device can carry out depth measurement on the measuring hole and automatically obtain measuring data, and the measuring device can also carry out analysis processing on the measuring data.
In one embodiment, a handle is arranged on the shell, and a force application button, a power supply, a power line and a release button are arranged on the handle;
the stress application button and the release button are connected with a power supply through power lines; the stress application button can send a loading signal to the drawing unit and automatically apply stress to the measuring nail to a preset value; the release button can send a release signal to the drawing unit, and the measuring nail is penetrated into the masonry structure.
In one embodiment, the bottom of the housing is provided with a first flat head.
In one embodiment, the masonry structure comprises a common sintered brick and masonry mortar, the first flat head is placed on the common sintered brick, and the measuring hole is located in the masonry mortar.
In one embodiment, the drawing unit comprises a penetration rod, a hook, a working spring and a fixed base;
one end of the penetration rod is connected with the jack, and the other end of the penetration rod is connected with the measuring nail;
the fixed base is fixed on the penetration rod, an installation cavity is enclosed between the fixed base and the inside of the shell, the working spring is arranged in the installation cavity, and the working spring is sleeved on the penetration rod;
the hook is installed on the penetration rod, and when the jack is loaded to a preset value, the hook automatically pops up and hangs on the fixed base.
In one embodiment, a protective shell is sleeved on the top of the penetration rod and is positioned above the support.
In one embodiment, the measurement processing device comprises a measuring head, a second flat head, a shell, a touch display screen, a power supply and control module, a wireless transmission module and a USB interface;
the measuring head and the USB interface are respectively arranged at the bottom and the top of the shell, the second flat head is arranged on the outer side of the measuring head, and the touch display screen is arranged on the side wall of the shell;
the power supply and control module and the wireless transmission module are arranged in the shell.
In one embodiment, the touch display screen comprises a switch, a voice recognition module, a penetration depth storage and display module, a mortar compressive strength calculation and display module, a component information and data browsing module and data transmission.
A use method of a mechanical automatic stress application mortar compressive strength detector comprises the following steps:
s1, determining the detection area and the measuring point position of the masonry structure, inputting measurement information, and then automatically measuring and recording the unevenness of the mortar surface at each measuring point;
s2, the drawing unit automatically applies force to a set value, and the release button is pressed to insert the measuring nail into the masonry structure;
s3, reading the mortar penetration depth at the measuring point by using the measuring and processing device, and displaying and automatically storing the measured data in real time;
s4, calculating a converted value and an estimated value of the mortar compressive strength of the masonry structure to generate a mortar compressive strength detection file of the masonry structure;
and S5, transmitting the mortar compressive strength data file and the detection file to the client through Bluetooth.
In one embodiment, the penetration force of the drawing unit is 800N, and the working stroke of the measuring nail is 20 mm; and the measuring nail is made of high-speed tool steel, the length of the measuring nail is 40mm, the diameter of the measuring nail is 3.5mm, the taper of the tip of the measuring nail is 45 degrees, and the length of the gauge groove is 39.5 mm.
The mechanical automatic stress application mortar compressive strength detector and the use method have the following advantages:
1) the automatic stress application is realized, the operation is convenient, and the detection efficiency is high;
2) the current manual reading and counting mode is changed, the automatic reading, analysis and wireless transmission of the compressive strength of the mortar are realized, and the intelligent level is high;
3) the paperless mortar compressive strength detection process is realized, and the digitization level is high.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a penetration device of the present invention;
FIG. 2 is a schematic view of the structure of the measurement processing apparatus of the present invention;
FIG. 3 is a schematic view of a masonry structure of the present invention;
FIG. 4 is a schematic view of the mortar strength testing process in the masonry structure of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, an embodiment of the present invention provides a mechanical automatic force-applying mortar compressive strength detector, which includes:
a penetration device comprising a housing 13, a drawing unit 3, a support 5 and a measuring pin 15; the support 5 is fixed in the shell 13, the drawing unit 3 is installed on the support 5, the drawing unit 3 is connected with the measuring nail 15, and the drawing unit 3 can drive the measuring nail 15 to penetrate into the masonry structure to form a measuring hole 19;
a measurement processing device 16, wherein the measurement processing device 16 can perform depth measurement on the measuring hole 19 and automatically obtain measurement data, and the measurement processing device 16 can also perform analysis processing on the measurement data.
In one embodiment of the present invention, a handle 6 is disposed on the housing 13, and a boost button 7, a power supply 8, a power line 9 and a release button 10 are disposed on the handle 6;
the boosting button 7 and the releasing button 10 are connected with a power supply 8 through a power line 9; the stress application button 7 can send a loading signal to the drawing unit 3, and automatically applies stress to the measuring nail 15 to a preset value; the release button 10 can send a release signal to the drawing unit 3 to insert the measuring pin 15 into the masonry structure.
Optionally, in order to facilitate abutting against the surface of the masonry structure, and improve positioning accuracy and penetration accuracy, the bottom of the housing 13 is provided with a first flat head 14.
Specifically, the masonry structure comprises common sintered bricks 17 and masonry mortar 18, the first flat head 14 is placed on the common sintered bricks 17, and the measuring holes 19 are located in the masonry mortar 18.
In one embodiment of the present invention, the drawing unit 3 comprises a penetration rod 1, a hook 4, a working spring 11 and a fixed base 12;
one end of the penetration rod 1 is connected with a jack (not shown in the figure), and the other end of the penetration rod 1 is connected with the measuring nail 15; through the flexible action of jack, can drive penetrate pole 1 with survey nail 15 and stretch out and draw back, thereby will survey nail 15 and penetrate into masonry structure.
The fixed base 12 is fixed on the injection rod 1, an installation cavity is defined between the fixed base 12 and the inside of the shell 13, the working spring 11 is arranged in the installation cavity, and the working spring 11 is sleeved on the injection rod 1;
the hook 4 is installed on the penetration rod 1, and when the jack is loaded to a preset value, the hook 4 is automatically popped up and hung on the fixed base 12.
It should be noted that, in this embodiment, the fixed base 12 moves along with the penetrating rod 1 in the same direction, so that the working spring 11 generates elastic deformation synchronously, and when the jack is loaded to a preset value, the hook 4 is opened synchronously and placed on the support 5, thereby implementing the automatic force application of the present invention.
In an embodiment of the present invention, in order to improve safety, a protective casing 2 is sleeved on the top of the penetration rod 1, and the protective casing 2 is located above the support 5.
In an embodiment of the present invention, the measurement processing device 16 includes a measuring head 161, a second flat head 162, a casing 163, a touch display screen 164, a power supply and control module 165, a wireless transmission module 166, and a USB interface 167;
the measuring head 161 and the USB interface 167 are respectively disposed at the bottom and the top of the casing 163, the second flat head 162 is disposed at the outer side of the measuring head 161, and the touch display screen 164 is disposed on the sidewall of the casing 163; the power and control module 165 and the wireless transmission module 166 are disposed within the housing 163. The touch display screen 164 includes a switch 1641, a voice recognition module 1642, a penetration depth storage and display module 1643, a mortar compressive strength calculation and display module 1644, a member information and data browsing module 1645, and a data transmission 1646.
The measuring head 161 can extend into the measuring hole 19 to measure the depth, and the second flat head 162 can abut against the surface of the masonry structure, so that the positioning accuracy and the measuring accuracy are improved. The power supply in the power supply and control module 165 is a dry battery and can be charged through the USB interface 167; the power supply and control module 165 switches between different functions of the touch screen 164 by sending different commands to the touch screen 164. The wireless transmission module 166 can transmit the measurement data to clients such as mobile phones and computers through bluetooth 5.0, etc., the transmission format can be txt, excel, csv, etc., the maximum data transmission speed is 24Mbps, and the effective working distance can reach 300 m. In the touch display screen 164, the input of the measurement information may be implemented by a voice recognition function and a built-in input method, respectively, and the measurement information may be modified; in addition, data processing and generating software is embedded in the touch display screen 164, and an electronic mortar compressive strength detection file can be generated as required.
Referring to fig. 4, an embodiment of the present invention provides a method for using a mechanical automatic force-applying mortar compression strength detector, which includes the following steps:
s1, determining the detection area and the measuring point position of the masonry structure, inputting measurement information, and then automatically measuring and recording the unevenness of the mortar surface at each measuring point; specifically, the measurement processing device 16 may be used to input the name, position, number, type, and other relevant measurement information of the masonry structure through voice recognition, and automatically measure and record the unevenness of the mortar surface at the ith measurement point, where i is 1,2, …, K; k represents the number of measurement points; alternatively, the maximum range of the measurement processing device 16 is 30mm, and the measurement accuracy is 0.01 mm.
S2, the drawing unit 3 automatically applies force to a set value, and the release button 10 is pressed to insert the measuring nail 15 into the masonry structure; specifically, the stress application button 7 is pressed to order the drawing unit 3 to automatically apply stress to 800N, the first flat head 14 is aligned to the middle of a mortar joint of a masonry structure and is vertically attached to the surface of the mortar to be detected, and the release button 10 is pressed to insert the measuring nail 15 into the mortar; optionally, the automatic force application time of the drawing unit 3 is less than 0.5 second, and the continuous working time of the detection instrument is not less than 3.0 hours.
S3, reading the mortar penetration depth at the measuring point by using the measuring and processing device 16, and displaying and automatically storing the measured data in real time; for example: reading the mortar penetration depth at the ith measuring point by using the measuring and processing device 16, automatically calculating the penetration depth at the ith measuring point through embedded software, and displaying and automatically storing detection data in real time; optionally, the embedded software can be developed by C + +, and can automatically read, store, and calculate the penetration depth, and also can automatically calculate the compressive strength of the mortar according to standard regulations or local regulations.
S4, calculating a converted value and an estimated value of the mortar compressive strength of the masonry structure to generate a mortar compressive strength detection file of the masonry structure; when a special strength measurement curve or a regional strength measurement curve exists, the special strength measurement curve and the regional strength measurement curve are used in sequence, otherwise, the strength measurement curve in technical regulations for detecting the compressive strength of the masonry mortar by the injection method (JGJ/T136-containing 2017) is used.
And S5, transmitting the mortar compressive strength data file and the detection file to the client through Bluetooth.
In the invention, the penetration force of the drawing unit 3 is 800N, and the working stroke of the measuring nail 15 is 20 mm; and the measuring nail 15 is made of high-speed tool steel, the length of the measuring nail is 40mm, the diameter of the measuring nail is 3.5mm, the taper of the tip of the measuring nail is 45 degrees, and the length of the gauge groove is 39.5 mm.
In summary, the invention has the advantages that:
1) the automatic stress application is realized, the operation is convenient, and the detection efficiency is high;
2) the current manual reading and counting mode is changed, the automatic reading, analysis and wireless transmission of the compressive strength of the mortar are realized, and the intelligent level is high;
3) the paperless mortar compressive strength detection process is realized, and the digitization level is high.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a mechanical automatic afterburning mortar compressive strength detector which characterized in that includes:
the device comprises a penetration device, a detection device and a control device, wherein the penetration device comprises a shell (13), a drawing unit (3), a support (5) and a measuring nail (15); the support (5) is fixed in the shell (13), the drawing unit (3) is installed on the support (5), the drawing unit (3) is connected with the measuring nail (15), and the drawing unit (3) can drive the measuring nail (15) to penetrate into the masonry structure to form a measuring hole (19);
a measurement processing device (16), wherein the measurement processing device (16) can perform depth measurement on the measuring hole (19) and automatically obtain measurement data, and the measurement processing device can also perform analysis processing on the measurement data.
2. The mechanical automatic stress application mortar compressive strength detector according to claim 1, characterized in that a handle (6) is arranged on the housing (13), and a stress application button (7), a power supply (8), a power line (9) and a release button (10) are arranged on the handle (6);
the boosting button (7) and the releasing button (10) are connected with a power supply (8) through a power line (9); the stress application button (7) can send a loading signal to the drawing unit (3) and automatically apply stress to the measuring nail (15) to a preset value; the release button (10) can send a release signal to the drawing unit (3) to inject the measuring nail (15) into the masonry structure.
3. The mechanical automatic stress mortar compression strength detector as claimed in claim 1 or 2, wherein the bottom of the outer shell (13) is provided with a first flat head (14).
4. The mechanical automatic stress mortar compressive strength detector according to claim 3, wherein the masonry structure comprises a common sintered brick (17) and a masonry mortar (18), the first flat head (14) is placed on the common sintered brick (17), and the measuring hole (19) is located in the masonry mortar (18).
5. The mechanical automatic stress application mortar compressive strength detector of claim 1, wherein the drawing unit (3) comprises a penetration rod (1), a hook (4), a working spring (11) and a fixed base (12);
one end of the penetration rod (1) is connected with a jack, and the other end of the penetration rod (1) is connected with the measuring nail (15);
the fixed base (12) is fixed on the injection rod (1), an installation cavity is defined between the fixed base (12) and the shell (13), the working spring (11) is arranged in the installation cavity, and the working spring (11) is sleeved on the injection rod (1);
the hook (4) is installed on the penetration rod (1), and when the jack is loaded to a preset value, the hook (4) is automatically popped up and hung on the fixed base (12).
6. The mechanical automatic stress application mortar compressive strength detector as claimed in claim 5, wherein a protective shell (2) is sleeved on the top of the penetration rod (1), and the protective shell (2) is positioned above the support (5).
7. The mechanical automatic stress mortar compressive strength detector according to claim 6, wherein the measurement processing device (16) comprises a measuring head (161), a second flat head (162), a shell (163), a touch display screen (164), a power supply and control module (165), a wireless transmission module (166) and a USB interface (167);
the measuring head (161) and the USB interface (167) are respectively arranged at the bottom and the top of the shell (163), the second flat head (162) is arranged at the outer side of the measuring head (161), and the touch display screen (164) is arranged on the side wall of the shell (163);
the power and control module (165) and wireless transmission module (166) are disposed within the housing (163).
8. The mechanical automatic stress application mortar compressive strength detector according to claim 7, wherein the touch display screen (164) comprises a switch (1641), a voice recognition module (1642), a penetration depth storage and display module (1643), a mortar compressive strength calculation and display module (1644), a member information and data browsing module (1645) and a data transmission module (1646).
9. The use method of the mechanical automatic stress mortar compression strength detector as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
s1, determining the detection area and the measuring point position of the masonry structure, inputting measurement information, and then automatically measuring and recording the unevenness of the mortar surface at each measuring point;
s2, the drawing unit (3) automatically applies force to a set value, and the release button (10) is pressed to insert the measuring nail (15) into the masonry structure;
s3, reading the mortar penetration depth at the measuring point by using the measuring and processing device (16), and displaying and automatically storing the measured data in real time;
s4, calculating a converted value and an estimated value of the mortar compressive strength of the masonry structure to generate a mortar compressive strength detection file of the masonry structure;
and S5, transmitting the mortar compressive strength data file and the detection file to the client through Bluetooth.
10. The use method of the mechanical automatic stress application mortar compressive strength detector according to claim 9, characterized in that the penetration force of the drawing unit (3) is 800N, and the working stroke of the measuring nail (15) is 20 mm; and the measuring nail (15) is made of high-speed tool steel, the length of the measuring nail is 40mm, the diameter of the measuring nail is 3.5mm, the taper of the tip is 45 degrees, and the length of the gauge groove is 39.5 mm.
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| CN202110301413.3A CN113049446A (en) | 2021-03-22 | 2021-03-22 | Mechanical automatic stress application mortar compressive strength detector and use method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270227Y (en) * | 1996-03-18 | 1997-12-10 | 中国建筑科学研究院建筑结构研究所 | Injection-type mortar strength tester |
| CN101329239A (en) * | 2008-07-28 | 2008-12-24 | 中国建筑第四工程局有限公司 | Detection method of pit sand masonry mortar compression resistance penetration method |
| CN204027952U (en) * | 2014-06-27 | 2014-12-17 | 尚廷东 | Mortar penetrometer calibrating installation |
| CN109085051A (en) * | 2018-08-06 | 2018-12-25 | 嘉兴中诚工程检测有限公司 | Injection type mortar strength detector |
| CN112461691A (en) * | 2020-12-16 | 2021-03-09 | 绍兴文理学院 | Full-automatic mortar penetrometer and use method thereof |
-
2021
- 2021-03-22 CN CN202110301413.3A patent/CN113049446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2270227Y (en) * | 1996-03-18 | 1997-12-10 | 中国建筑科学研究院建筑结构研究所 | Injection-type mortar strength tester |
| CN101329239A (en) * | 2008-07-28 | 2008-12-24 | 中国建筑第四工程局有限公司 | Detection method of pit sand masonry mortar compression resistance penetration method |
| CN204027952U (en) * | 2014-06-27 | 2014-12-17 | 尚廷东 | Mortar penetrometer calibrating installation |
| CN109085051A (en) * | 2018-08-06 | 2018-12-25 | 嘉兴中诚工程检测有限公司 | Injection type mortar strength detector |
| CN112461691A (en) * | 2020-12-16 | 2021-03-09 | 绍兴文理学院 | Full-automatic mortar penetrometer and use method thereof |
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Application publication date: 20210629 |