CN110926902A - Device and method for measuring water absorption of machine-made sand - Google Patents
Device and method for measuring water absorption of machine-made sand Download PDFInfo
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- CN110926902A CN110926902A CN201911384490.9A CN201911384490A CN110926902A CN 110926902 A CN110926902 A CN 110926902A CN 201911384490 A CN201911384490 A CN 201911384490A CN 110926902 A CN110926902 A CN 110926902A
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- 239000004576 sand Substances 0.000 title claims abstract description 123
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 56
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 238000001035 drying Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 229920006395 saturated elastomer Polymers 0.000 claims description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 16
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 16
- 241001330002 Bambuseae Species 0.000 claims description 16
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 16
- 239000011425 bamboo Substances 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000843 powder Substances 0.000 abstract description 8
- 238000007605 air drying Methods 0.000 abstract description 4
- 239000004575 stone Substances 0.000 abstract description 4
- 239000004568 cement Substances 0.000 description 8
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000005485 electric heating Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000010998 test 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
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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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
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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Abstract
The invention discloses a machine-made sand water absorption rate measuring device and a measuring method, wherein a drying device, a tamping device and a slump cone test mold are arranged in a box body, machine-made sand is dried by stirring and heating a pot body, the drying efficiency is greatly improved, and meanwhile, the problem of reduction of stone powder content in the machine-made sand caused in the existing air drying process is solved, so that the measuring precision of the water absorption rate of the machine-made sand can be effectively ensured.
Description
Technical Field
The invention relates to the technical field of cement concrete fine aggregate property determination methods, in particular to a mechanism sand water absorption rate determination device and a determination method.
Background
The fine aggregate is an important component of cement concrete, wherein the fine aggregate comprises two main types of natural sand and machine-made sand, and the machine-made sand is widely used in the cement concrete due to the shortage of river sand at present. The water absorption rate of the machine-made sand is one of important physical properties of the machine-made sand, influences the water demand and the water cement ratio in the mix proportion of the cement concrete, and further influences the workability of the cement concrete construction, wherein the workability of the cement concrete construction influences the difficulty of construction and the strength and durability of the cement concrete in the later period. At present, the water absorption of the machine-made sand is measured by a method T0330-2005 in aggregate test procedure for highway process (JTGE42-2005), the method can simultaneously measure the water absorption of natural sand and machine-made sand, a blower is adopted to dry the wet machine-made sand with water poured out so as to enable the wet machine-made sand to reach a saturated surface dry state, and then the wet machine-made sand is filled in a mold and tamped so as to determine the water absorption.
However, there are many disadvantages to measuring the machine-made sand water absorption rate by this method. Firstly, compared with natural sand, the machine-made sand has higher stone powder content and is difficult to stand, and when water is poured into a machine-made sand container tray, the water is difficult to pour out in order to ensure that the stone powder does not run off, so that excessive water is remained in a sample to be air-dried, the drying time of a blower is too long, and the test efficiency is influenced; secondly, the content of the machine-made sandstone powder is high, so that fine powder is easy to lose during air drying, and the test precision is influenced; moreover, the distance between the end face of the tamper and a sample is strictly controlled not to exceed 10mm when the tamper is adopted for free-falling tamping, but the test requirement is difficult to guarantee during manual test, and the test precision is reduced; finally, the method needs manual drying, and the machine-made sand sample is manually filled into a mold, so that the operation is complex and not convenient.
CN201620478495.3 provides a device for measuring the dry water absorption of a saturated surface of machine-made sand, which is characterized in that on the basis of a T0330-2005 method in aggregate test regulations in road processes (JTG E42-2005), a heating mechanism is arranged under a machine-made sand container tray to replace a blower for air drying, but the method has the problems of low efficiency and uneven heating during drying, insufficient test precision, complex operation and the like.
Therefore, a high-efficiency, high-precision and convenient mechanical sand water absorption rate measuring device is needed for experimental research and engineering application.
Disclosure of Invention
Aiming at the problem of low measurement precision of the water absorption of the machine-made sand, the invention provides a device and a method for measuring the water absorption of the machine-made sand, so that the water absorption of the machine-made sand can be accurately and efficiently measured.
The invention is realized by the following technical scheme:
a machine-made sand water absorption rate measuring device comprises a box body, wherein a slump cone test mold is arranged in the box body, and a drying device and a tamping device are arranged at the top of the slump cone test mold;
the drying module comprises a stirring device, a pot body and a heating device;
the pot body is unsettled to be set up in the box, and agitating unit's upper portion is fixed on the box, and agitating unit's lower part is stretched into the pot body, is provided with heating device on the pot body for dry to the mechanism sand, the bottom of the pot body is provided with the export, is arranged in making the mechanism sand of drying pour into slump section of thick bamboo examination mould, and the tamping unit is arranged in tamping the mechanism sand to in the slump section of thick bamboo examination mould.
Preferably, the stirring device comprises an electric rotor, a stirring blade and a stirring shaft;
the top of the electric rotor is connected with the top of the box body, the stirring shaft is connected with the rotating shaft of the electric rotor, the stirring blades are arranged on the stirring shaft, and the stirring blades extend into the pot body.
Preferably, the side wall of the pot body is of a hollow sandwich structure, and the heating device is arranged in the sandwich.
Preferably, the bottom center of the pot body is provided with a funnel, and the dried machine-made sand enters the slump cone test mold through the funnel.
Preferably, the tamping device comprises a fixed pulley, a steel wire rope, a tamper and a motor;
the fixed pulley is fixed in the top of box, and wire rope's one end is connected with the output shaft of motor, and the motor is located the outside of box, and the other end of wire rope is walked around the fixed pulley and is connected with the top of tamper.
Preferably, the box body is also internally provided with a laser range finder for measuring the distance between the bottom of the tamper and the surface of the sand sample manufactured in the slump cone test mold.
Preferably, a steel wire rope pipeline is further arranged on the inner wall of the box body, and the end part of the steel wire rope penetrates through the steel wire rope pipeline and bypasses the fixed pulley to be connected with the tamper.
Preferably, the bottom of box still is provided with the drive belt, on the drive belt was placed to slump section of thick bamboo examination mould, the drive belt was used for moving slump section of thick bamboo examination mould to drying device or tamping unit's below.
Preferably, the slump cone test mold is placed on the transmission belt through a machine-made sand tray.
The invention also provides a measuring method of the device for measuring the water absorption of the machine-made sand, which comprises the following steps:
step 2, starting the stirring device and the heating device to dry the machine-made sand in the pot body;
step 4, tamping machine-made sand in the slump cone test mold by adopting a tamping device;
step 5, performing a slump test on the compacted machine-made sand to determine whether the machine-made sand reaches a saturated surface dry state;
when the manufactured sand reaches a saturated surface dry state, executing the step 6, otherwise, executing the step 2;
and 6, measuring the water absorption of the machine-made sand reaching the saturated surface dry state.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the device for measuring the water absorption of the machine-made sand, the drying device, the tamping device and the slump cone test mold are arranged in the box body, the machine-made sand is dried in a stirring and heating mode on the pot body, the drying efficiency is greatly improved, and meanwhile, the problem that the content of stone powder in the machine-made sand is reduced in the air drying process of the existing blower is solved, so that the measuring accuracy of the water absorption of the machine-made sand can be effectively guaranteed.
Further, drive stirring vane through electric rotor and stir the mechanism sand, improved the drying efficiency of mechanism sand, also make the mechanism sand be heated evenly simultaneously.
Furthermore, the heating device is arranged in the interlayer of the pot body, so that the pot body is uniformly heated, and the safety during drying is improved.
Further, the motor is adopted to control the tamper through the steel wire rope to automatically tamp, the structure is simple, the operation error of a tester is reduced, and the measurement accuracy is improved.
Further, measure the distance between the tamping bar bottom surface to the slump section of thick bamboo trial mould system sand sample surface through laser range finder, guarantee that the tamping process accords with the regulation requirement, improve measurement accuracy.
Furthermore, the mechanism sand tray provided with the slump cone test mold is controlled to move through the transmission belt, and the measuring efficiency is further improved.
The invention also provides a measuring method of the measuring device, firstly, the heating of the machine-made sand is realized through the drying device, and the real-time stirring is realized through the stirring, so that the machine-made sand is uniformly heated, the arrangement of the drying module ensures that the machine-made sand is rapidly and uniformly dried to a saturated surface dry state, and the condition that the loss of fine powder affects the test precision is eliminated; secondly, the machine-made sand is dried to a saturated surface dry state and then is automatically loaded into the slump cone test mold, compared with the traditional manual dumping mold loading process, the process realizes that the machine-made sand automatically and quickly loads the slump cone test mold, and the test efficiency is improved; then, the tamper combines laser range finder automatic according to the requirement of the tamping of standard regulation to carry out the tamping, and the manual tamping error in the existing method has been eliminated when this process adopts the automatic tamping of tamper, has improved the test accuracy. And finally, operating according to the T0330-2005 specification in the road process aggregate test specification and measuring the mechanism sand water absorption.
Drawings
FIG. 1 is a schematic view of the structure of an assay device according to the present invention;
fig. 2 is a schematic structural diagram of the drying module of the present invention.
Wherein, 1, a power supply; 2. a box body; 3. a base; 4. a conveyor belt; 5. a control unit; 6. an electric motor; 7. a laser range finder; 8. a fixed pulley; 9. a wire rope; 10. tamping; 11. a wire rope pipeline; 12. a first key; 14. a second key; 15. an entrance and an exit; 16. a machine-made sand tray; 17. testing a mould of the slump cone; 18. a drying device; 19. an electric rotor fixing block; 20. an electric rotor; 21. a stirring blade; 22. a stirring shaft; 23. a pan body; 24. an electric heating wire; 25. a funnel; 26. a funnel switch; 27. a control system; 28. a pot body clamping groove.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 1 and 2, a machine-made sand water absorption rate measuring apparatus includes a housing 2, a control system 27, and a drying device 18, a slump cone test pattern 17, and a tamping device provided in the housing 2.
Wherein, the front of box 2 is provided with gets the thing mouth, and drying device 18 is located the top of box 2, and slump section of thick bamboo examination mould 17 sets up in the bottom of box 2 to be located drying device 18 under, the tamping unit sets up the top at the box for machine-made sand in the slump section of thick bamboo examination mould 17 is tamped.
The drying module 18 comprises an electric rotor fixing block 19, an electric rotor 20, a stirring blade 21, a stirring shaft 22, a pot body 23, an electric heating wire 24, a funnel 25 and a funnel switch 26.
Wherein, electric rotor 20's upper end is fixed in 2 tops of box through electric rotor fixed block 19, electric rotor 20's control end is connected with control system 27's output, (mixing) shaft 22 upper end is connected with electric rotor 20 lower extreme, electric rotor 20 drive (mixing) shaft 22 rotates, stirring vane 21 is fixed in on (mixing) shaft 22, stirring vane 21 is located the pot body 23, the pot body 23 sets up in box 2 through pot body draw-in groove 28, pot body draw-in groove 28 is fixed at the 2 inner walls of box, be equipped with ohmic heating's heating wire 24 on the pot body 23 lateral wall, the center of the bottom of the pot body 23 is provided with the discharge gate, pot body 23 lower part still is provided with funnel 25, the funnel can communicate with the discharge gate.
The funnel switch 26 is an insertion plate, a horizontal insertion groove is formed in the connection position of the pot body 23 and the funnel, the insertion plate is assembled in the insertion groove, the insertion plate can horizontally move in the insertion groove, and a discharge hole in the bottom of the pot body 23 is closed or opened.
The stirring blades 21 are spirally arranged on the stirring shaft 22 and are used for stirring the machine-made sand of the pot body.
The pot body clamping groove is used for restraining the pot body 23 and ensuring the stability of the pot body, and the pot body 23 can be detached and arranged in the pot body clamping groove 28.
The lateral wall of the pot body 23 is of a hollow sandwich structure, the heating wires 24 are uniformly distributed in the sandwich layer, and the machine-made sand in the pot body 23 is dried by uniformly heating the heating wires.
A slump section of thick bamboo examination mould 17 is the toper structure to for both ends open structure, a slump section of thick bamboo examination mould 17 is placed in mechanism sand shallow tray 16, places the bottom at box 2 through mechanism sand shallow tray 16, and slump section of thick bamboo examination mould 17's entry is just to the export of funnel 25, and the mechanism sand of guaranteeing to dry falls into a slump section of thick bamboo examination mould 17, and mechanism sand shallow tray 16 is used for accepting from not falling into a slump section of thick bamboo examination mould 17 and the mechanism sand that overflows at the tamping in-process, avoids the extravagant and polluted environment of mechanism sand.
The bottom of the box body 2 is provided with a base 3, the base 3 is provided with a conveyor belt 4, the conveyor belt is used for conveying a slump cone test mold 17 filled with machine-made sand to a tamping position, namely, under the tamping device, a machine-made sand tray 16 is positioned on the conveyor belt 4, the slump cone test mold 17 is placed on the machine-made sand tray 16, and the center of the slump cone test mold 17 is aligned with the center of the funnel 25.
The tamping device comprises a fixed pulley 8, a steel wire rope 9, a laser range finder 7, a tamper 10 and a motor 6.
Fixed pulley 8 is fixed in the top of box 2, and wire rope 9's one end is connected with motor 6's output shaft, and the motor is located the outside of box, and wire rope 9's the other end is walked around fixed pulley 8 and is connected with the top of tamper 10, and motor 6's control end is connected with control system 27's output.
The front of the box body 2 is provided with a box body inlet and outlet 15, the inner wall of the box body 2 is also provided with a steel wire rope pipeline 11, and the steel wire rope 9 passes through the steel wire rope pipeline 11 and then bypasses the fixed pulley 8 to be connected with the tamper 10.
Laser range finder 7 sets up at the top of 2 of box for detect the distance between the system sand sample surface in tamper 10 bottom surface and the slump section of thick bamboo examination mould 17, laser range finder 7's output is connected with control system 27's input.
The control system 27 includes a first button 12, a second button 14, a control unit 5 and a power supply 1 for supplying power, wherein the control unit 5 is respectively connected to the first button 12, the second button 14, the electric rotor 20, the heating wire 24, the conveyor belt 4, the motor 6 and the laser range finder 7.
A first button 12 for controlling the operation states of the heating wire 24 and the electric rotor 20; and a second button 14 for controlling the operating state of the conveyor belt.
The following describes in detail a measuring method of the machine-made sand water absorption rate measuring device provided by the invention, and the method comprises the following steps:
1) the entrance 15 is opened, and the wet machine-made sand with the excessive water poured out, which is manufactured by the method T0330-2005 in the road process aggregate test regulation, is poured into the pot body 23.
2) The power supply 1 is switched on, the first key 12 is clicked, the heating wire 24 in the pot body 23 starts to heat, the electric rotor 20 drives the stirring blade 21 to stir the sand, and meanwhile, a technician observes the moisture state of the machine-made sand sample and preliminarily judges whether the machine-made sand sample reaches the saturated surface dry state.
3) When the machine-made sand reaches the saturated surface dry state, clicking the first key 12, stopping working of the electric heating wire 24 and the electric rotor 20, moving the inserting plate to open the discharge port of the pot body, enabling the dried machine-made sand to flow to the slump cone test mold 17 through the funnel 25, and closing the funnel switch 26 when the machine-made sand is filled in the slump cone test mold 17.
4) Clicking the second key 14, automatically moving the machine-made sand tray 16 with the slump cone test mold 17 to one side of the center of the tamper 10 by the conveyor belt 4 until the center of the slump cone test mold 17 is positioned below the center of the tamper 10, and measuring the distance from the bottom surface of the tamper 10 to the sample by the laser range finder 7, wherein the distance is smaller than 10mm and can be realized by adjusting the length of the steel wire rope 9; and finally, starting the motor 6 to enable the tamper 10 to freely fall to tamp the machine-made sand.
The tamper 10 is combined with the laser range finder 7 to realize free falling body high-precision tamping which meets the requirements of a method T0330-2005 in the road process aggregate test regulations and has the distance between the end face of the tamper 10 and a sample of not more than 10 mm.
5) And taking out the machine-made sand tray 16 with the slump cone test mould 17 through an inlet and an outlet, and operating according to a method T0330-2005 in the highway process aggregate test regulation to judge whether the machine-made sand sample reaches a saturated surface dry state.
6) And if the machine-made sand reaches a saturated surface dry state, measuring the water absorption of the machine-made sand according to a method T0330-2005 in the highway process aggregate test regulation. And if the saturated surface dry state is not reached, pouring the taken out machine-made sand in the slump cone test mold 17 and the machine-made sand tray 16 into the pot body 23, and repeating the steps 2-5 until the saturated surface dry state is reached.
When the machine-made sand water absorption rate measuring device is used, firstly, the heating of the machine-made sand is realized through the electric heating wire of the drying module, and meanwhile, the stirring blades are driven by the electric rotor to realize real-time stirring, so that the machine-made sand is uniformly heated, the arrangement of the drying module ensures that the machine-made sand is rapidly and uniformly dried to a saturated surface dry state, and the condition that the influence on test precision caused by the loss of fine powder is eliminated.
Secondly, the machine-made sand is dried to a saturated surface dry state and then is automatically loaded into the slump cone test mold through the funnel, compared with the traditional method of manually dumping and loading the mold, the process realizes that the machine-made sand automatically and quickly loads the slump cone test mold, and the test efficiency is improved;
then, the machine-made sand tray placed with the slump cone test mold moves towards one side of the center of the tamper until the center of the slump cone test mold is located at the position below the center of the tamper, tamping is automatically carried out according to the tamping requirement specified by the standard by combining a laser range finder, manual tamping errors in the existing method are eliminated when the tamper is automatically tamped in the process, and the test precision is improved.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A machine-made sand water absorption rate measuring device is characterized by comprising a box body (2), wherein a slump cone test mold (17) is arranged in the box body, and a drying device (18) and a tamping device are arranged at the top of the slump cone test mold (17);
the drying module (18) comprises a stirring device, a pot body (23) and a heating device;
the utility model discloses a collapse section of thick bamboo examination mould, including pot body (23), agitating unit, pot body (23) unsettled setting is in the box, and agitating unit's upper portion is fixed on the box, and agitating unit's lower part stretches into in the pot body (23), is provided with heating device on the pot body (23) for dry to the mechanism sand, the bottom of the pot body (23) is provided with the export, is arranged in making the mechanism sand of drying pour into collapse section of thick bamboo examination mould (17), and the tamping unit is arranged in carrying out the tamping to the mechanism sand in collapse section of thick bamboo examination mould (17).
2. A machine-made sand water absorption measuring device according to claim 1, wherein said stirring means comprises an electric rotor (20), a stirring blade (21) and a stirring shaft (22);
the top of the electric rotor (20) is connected with the top of the box body, the stirring shaft (22) is connected with the rotating shaft of the electric rotor, the stirring blades (21) are arranged on the stirring shaft (22), and the stirring blades extend into the pot body (23).
3. A machine-made sand water absorption measuring device according to claim 1, characterized in that the side wall of the pan body (23) is a hollow sandwich structure, and the heating device is arranged in the sandwich.
4. The machine-made sand water absorption measuring device according to claim 1, wherein a funnel is arranged at the center of the bottom of the pot body, and dried machine-made sand enters the slump cone test mold (17) through the funnel.
5. A machine-made sand water absorption rate measuring device according to claim 1, wherein said tamping device comprises a fixed pulley (8), a wire rope (9), a tamper (10) and a motor (6);
the fixed pulley (8) is fixed on the top of the box body (2), one end of the steel wire rope (9) is connected with an output shaft of the motor (6), the motor is located on the outer side of the box body, and the other end of the steel wire rope (9) is connected with the top of the tamper (10) by bypassing the fixed pulley (8).
6. A machine-made sand water absorption measuring device according to claim 5, characterized in that a laser distance meter (7) is further arranged in the box body and used for measuring the distance between the bottom of the tamper (10) and the surface of the machine-made sand sample in the slump cone test die (17).
7. A machine-made sand water absorption measuring device according to claim 5, characterized in that a steel wire rope pipeline (11) is further arranged on the inner wall of the box body (2), and the end part of the steel wire rope (9) passes through the steel wire rope pipeline (11) and bypasses the fixed pulley (8) to be connected with the tamper (10).
8. The machine-made sand water absorption rate measuring device according to claim 1, characterized in that a transmission belt (4) is further arranged at the bottom of the box body (2), the slump cone test mold (17) is placed on the transmission belt, and the transmission belt (4) is used for moving the slump cone test mold (17) to the lower part of the drying device (18) or the tamping device.
9. A machine-made sand water absorption measuring device according to claim 8, wherein said slump cone test pattern (17) is placed on the belt by a machine-made sand tray (16).
10. A method of measuring a mechanism sand water absorption measuring apparatus according to any one of claims 1 to 9, comprising the steps of:
step 1, pouring machine-made sand in a wet state into a pot body (23);
step 2, starting the stirring device and the heating device to dry the machine-made sand in the pot body (23);
step 3, pouring the machine-made sand obtained in the step 2 into a slump cone test mold (17);
step 4, tamping the machine-made sand in the slump cone test mold (17) by adopting a tamping device;
step 5, performing a slump test on the compacted machine-made sand to determine whether the machine-made sand reaches a saturated surface dry state;
when the manufactured sand reaches a saturated surface dry state, executing the step 6, otherwise, executing the step 2;
and 6, measuring the water absorption of the machine-made sand reaching the saturated surface dry state.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384490.9A CN110926902A (en) | 2019-12-28 | 2019-12-28 | Device and method for measuring water absorption of machine-made sand |
| AU2020413969A AU2020413969A1 (en) | 2019-12-28 | 2020-11-05 | Manufactured sand water absorption rate measuring device and method |
| PCT/CN2020/126762 WO2021129184A1 (en) | 2019-12-28 | 2020-11-05 | Manufactured sand water absorption rate measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384490.9A CN110926902A (en) | 2019-12-28 | 2019-12-28 | Device and method for measuring water absorption of machine-made sand |
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| CN110926902A true CN110926902A (en) | 2020-03-27 |
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|---|---|---|---|
| CN201911384490.9A Pending CN110926902A (en) | 2019-12-28 | 2019-12-28 | Device and method for measuring water absorption of machine-made sand |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110926902A (en) |
| AU (1) | AU2020413969A1 (en) |
| WO (1) | WO2021129184A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129184A1 (en) * | 2019-12-28 | 2021-07-01 | 长安大学 | Manufactured sand water absorption rate measuring device and method |
| CN114486611A (en) * | 2021-12-28 | 2022-05-13 | 安徽伊法拉电气股份有限公司 | Water absorption rate testing device for capacitor insulation protective sleeve |
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| CN114274305B (en) * | 2021-12-08 | 2023-11-28 | 重庆茂侨科技有限公司 | Sampling forming equipment |
| CN115015020A (en) * | 2022-07-01 | 2022-09-06 | 冯桃 | Sintered brick water absorption and saturation coefficient detection device |
| CN116148451B (en) * | 2023-04-19 | 2023-07-14 | 河北建设集团天辰建筑工程有限公司 | Concrete detection device for construction based on VR |
| CN116296719B (en) * | 2023-05-17 | 2023-07-21 | 河南金博文建设工程有限公司 | Concrete construction quality detects sampling device |
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| CN114486611A (en) * | 2021-12-28 | 2022-05-13 | 安徽伊法拉电气股份有限公司 | Water absorption rate testing device for capacitor insulation protective sleeve |
Also Published As
| Publication number | Publication date |
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| WO2021129184A1 (en) | 2021-07-01 |
| AU2020413969A1 (en) | 2021-08-05 |
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