AU2020413969A1 - Manufactured sand water absorption rate measuring device and method - Google Patents
Manufactured sand water absorption rate measuring device and method Download PDFInfo
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- AU2020413969A1 AU2020413969A1 AU2020413969A AU2020413969A AU2020413969A1 AU 2020413969 A1 AU2020413969 A1 AU 2020413969A1 AU 2020413969 A AU2020413969 A AU 2020413969A AU 2020413969 A AU2020413969 A AU 2020413969A AU 2020413969 A1 AU2020413969 A1 AU 2020413969A1
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- Australia
- Prior art keywords
- manufactured sand
- water absorption
- absorption rate
- manufactured
- slump cone
- Prior art date
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- 239000004576 sand Substances 0.000 title claims abstract description 128
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012360 testing method Methods 0.000 claims abstract description 65
- 238000003756 stirring Methods 0.000 claims abstract description 42
- 238000001035 drying Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 229920006395 saturated elastomer Polymers 0.000 claims description 18
- 239000011229 interlayer Substances 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 4
- 235000013312 flour Nutrition 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 238000007605 air drying Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a manufactured sand water absorption rate determination device
and determination method comprises setting up a drying device, a tamping device and a
slump cone test mold in the box body, drying the manufactured sand by stirring and heating
the pot body, significantly improving the drying efficiency, and simultaneously, solving the
problem of mountain flour content reduction in the manufactured sand among the current
air-dry process by the blower; consequently, it can effectively guarantee the measurement
accuracy of the water absorption rate of manufactured sand, secondly, through the bottom
opening at the pot body, the automatic flow-in of manufactured sand after drying into the
slump cone test mold, and adoption of the tamping device to tamp the manufactured sand
after drying have avoided the process of manual filling machine system sand, improved
measuring efficiency and lastly, reduced the labor strength via tamping device.
1
Description
[0001] 1. Field of the Invention
[0002] The invention relates to the technical field of cement concrete fine aggregate property
determination methods, in particular to the determination method and device of the water
absorption rate of the manufactured sand.
[0003] 2. Description of the Related Art
[0004] The fine aggregate is an important component of cement concrete, wherein the fine
aggregate comprises two main categories of natural sand and manufactured sand, and the
manufactured sand is widely used in the cement concrete due to the shortage of river sand and
sustainability issue at present. The water absorption rate is one of important physical
properties of the manufactured sand, which influences the ration of water demand and the
water to cementitious material ratio in the cement concrete mixture proportioning, and further
influences the workability of cement concrete construction. Meanwhile, the difficulty of
construction and the post-stage strength and durability of concrete can be dramatically
affected. Currently, the water absorption of manufactured sand can be determined in
accordance with T0330-2005 in Test Methods of Aggregate for Highway Engineering
(JTGE42-2005), which can simultaneously measure the water absorption rate of natural sand
and manufactured sand. The apparatus adopts a blower to dry the wet manufactured sand with
water poured out to make the wet manufactured sand reach a saturated surface dry state, and
then the wet manufactured sand is filled in a mold and tamped, so as to determine the water
absorption rate.
[0005] However, there are several disadvantages to the current method of measuring the
manufactured sand water absorption rate. Firstly, compared with natural sand, the
manufactured sand has higher stone powder content and is difficult to stand.When the water
DESCRIPTION in a container tray of the manufactured sand is poured, it is difficult to pour out in order to ensure that the stone powder does not run off, consequently, excessive water is remained in a sample for air drying and the drying time of a blower will be excessive long, influencing the test efficiency; secondly, the high content of the manufactured sandstone powder will cause the fine powder prone to dissipate during air drying, and further influence the test precision; moreover, the distance between the end surface of the tamper and a sample is strictly controlled not to exceed 10mm when the tamper is adopted for free-falling tamping, but it is very difficult to accurately guarantee this test requirement through manual experimental operation, therefore precision may be reduced; finally, the method needs manual drying, and the manufactured sand sample is manually filled into a mold, the operation of which is complex and not convenient.
[0006] The patent CN201620478495.3 provides a device for measuring the dry water absorption of a saturated surface of manufactured sand, which is based on the method T0330-2005 in Test Methods of Aggregatefor Highway Engineering (JTGE42-2005) and is characterized in that a heating mechanism is arranged under a manufactured sand container tray to replace the blower for air drying, but the method still has disadvantages of low drying efficiency, uneven heating, insufficient test precision, complex operation and etc.
[0007] Therefore, a high-efficiency, high-precision and convenient manufactured sand water absorption rate determination device is imperative for experimental research and engineering application.
[0008] Aiming at the problem of low measurement precision of the water absorption of the manufactured sand, the invention provides a manufactured sand water absorption rate determination device and determination method, so that the water absorption rate of the manufactured sand can be accurately and efficiently measured.
[0009] The invention is achieved by following technical solution:
[0010] A manufactured sand water absorption rate determination device comprises a box body, with a slump cone test mold arranged therein, and a drying device and a tamping device are arranged at the top of the slump cone test mold;
[0011] as described drying device comprises a stirring device, a pot body and a heating device;
[0012] as described pot body is arranged in the box body in a floating manner, and the upper portion of the stirring device is fixed on the box body, while the lower portion thereof is stretched into the pot body; a heating device is provided on the pot body for drying the manufactured sand while the bottom of the pot body is provided with the entrance for making the dried manufactured sand to pour into the slump cone test mold; the tamping device is arranged to tamp the manufactured sand in the slump cone test mold.
[0013] Preferably, as described stirring device comprises an electric rotor, a stirring blade and a stirring shaft;
[0014] Preferably, the top of as described 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 blade is arranged on the stirring shaft, and the stirring blade stretches into the pot body.
[0015] Preferably, the side wall of as described pot body is of a hollow interlayer structure, and the heating device is arranged in the interlayer.
[0016] Preferably, a funnel is arranged at the center of the bottom of as described pot body, and the dried manufactured sand enters the slump cone test mold via the funnel.
[0017] Preferably, as described tamping device comprises a fixed pulley, a steel wire rope, a tamper and a motor;
[0018] as described fixed pulley is fixed in the top of box body, and one end of the steel wire rope is connected with the output shaft of the motor, and the motor is located the outside of box body, while the other end of the steel wire rope bypasses the fixed pulley and is connected with the top of tamper.
[0019] Preferably, a laser range finder is arranged in the box body and used for measuring the distance between the bottom of the tamper and the surface of the manufactured sand sample in the slump cone test mold.
[0020] Preferably, a steel wire rope pipeline is further arranged on the inner wall of the box body, and the end portion of the steel wire rope penetrates through the steel wire rope pipeline and bypasses the fixed pulley to be connected with the tamper.
[0021] Preferably, the bottom of as described box body is provided with a drive belt, on which
DESCRIPTION is provided with the slump cone test mold, wherein the drive belt is used for removing the slump cone test mold to the below of drying device or tamping device.
[0022] Preferably, as described slump cone test mold is placed on the drive belt through a manufactured sand tray.
[0023] The invention also provides a determination method of as described manufactured sand water absorption rate determination device, which comprises the following steps:
[0024] step 1, pouring manufactured sand in a wet state into a pot body;
[0025] step 2, starting the stirring device and the heating device to dry the manufactured sand in the pot body;
[0026] step 3, pouring the manufactured sand obtained in the step 2 into the slump cone test mold;
[0027] step 4, tamping the manufactured sand in the slump cone test mold by adopting a tamping device;
[0028] step 5, performing a slump test on the compacted manufactured sand to determine whether the manufactured sand reaches a saturated surface dry state;
[0029] when the manufactured sand reaches a saturated surface dry state, executing the step 6, otherwise, executing the step 2;
[0030] step 6, determining the water absorption rate of the manufactured sand reaching the saturated surface dry state.
[0031] Compared with the prior art, the invention has following advantageous effects:
[0032] a manufactured sand water absorption rate determination device provided by the invention comprises setting up a drying device, a tamping device and a slump cone test mold in the box body, drying the manufactured sand by stirring and heating the pot body, significantly improving the drying efficiency, and simultaneously, solving the problem of mountain flour content reduction in the manufactured sand among the current air-dry process by the blower; consequently, it can effectively guarantee the measurement accuracy of the water absorption rate of manufactured sand, secondly, through the bottom opening at the pot body, the automatic flow-in of manufactured sand after drying into the slump cone test mold, and adoption of the tamping device to tamp the manufactured sand after drying have avoided the process of manual filling machine system sand, improved measuring efficiency and lastly,
DESCRIPTION reduced the manual tamping error and improved measuring accuracy via automatic tamping
device.
[0033] Further, the electric rotor drives the stirring blade to stir the manufactured sand, which
has improved the drying efficiency of manufactured sand, and also make the manufactured
sand evenly heated simultaneously.
[0034] 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.
[0035] Furthermore, adopting the motor to carry out automatic tamping through steel wire
rope controlling tamper, the simple structure of which reduces tester's operating error and
improves the survey accuracy.
[0036] Furthermore, measuring the distance between the bottom of the tamper and
manufactured sand sample surface in slump cone test mold through laser range finder,
ensuring that the tamping process accords with the regulation requirement and improving
measurement accuracy.
[0037] Furthermore, the manufactured sand tray provided with the slump cone test mold is
controlled to move via the drive belt, and further improving the measuring efficiency.
[0038] The invention also provides a measuring method of the determination device, firstly,
the heating of the manufactured sand is realized via the drying device, the real-time stirring is
realized via stirring, so that the manufactured sand is uniformly heated. The arrangement of
the drying module ensures that the manufactured sand is rapidly and uniformly dried to a
saturated surface dry state, and eliminating the loss of fine powder, which can affect the test
precision; secondly, after the manufactured sand is dried to a saturated surface dry state, it will
be automatically loaded into the slump cone test mold; compared with the traditional method
of manually dumping and loading the mold, the process realizes that the manufactured sand
automatically and quickly loads the slump cone test mold and improves the test efficiency;
then, the tamper combines laser range finder to carry out the tamping according to the
standards regulated by tamping requirement automatically, which process eliminated manual
error in prior art and improved experimental precision. And finally, operating according to the
method T0330-2005 in Test Methods of Aggregate for Highway Engineering and measuring
the manufactured sand water absorption rate.
[0039] FIG. 1 is the structural diagram of the determination device in the invention;
[0040] FIG. 2 is the structural diagram of the drying device in the invention;
[0041] Wherein 1. power supply; 2. box body; 3. base; 4. drive belt; 5. control unit; 6. motor; 7. laser range finder; 8. fixed pulley; 9. steel wire rope, 10. tamper; 11. steel wire rope pipeline; 12. first key; 14. second key; 15. entrance; 16. manufactured sand tray; 17. slump cone test mold; 18. drying device; 19. Electric rotor fixing block 20. electric rotor; 21. stirring blade; 22. stirring shaft; 23.pot body; 24. heating wire; 25. funnel; 26. Funnel switch; 27. control system; 28. pot body slot.
[0042] The invention is further described in detail hereinafter with reference to the drawings, which serves as explanation rather than limitation to the invention.
[0043] As is shown in FIG. 1 and FIG. 2, a manufactured sand water absorption rate determination device comprises a box body 2, a control system 27, a drying device 18 arranged in the box body 2, a slump cone test mold 18 and a tamping device.
[0044] Wherein, the front of the box body 2 is provided with a fetch port, and the drying device 18 is located the top of box body 2, and the slump cone test mold 17 is in the bottom of box body 2 and directly below the drying device 18; the tamping device is provided at the top of the box body for tamping the manufactured sand in the slump cone test mold 17.
[0045] As described 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, a heating wire 24, a funnel 25 and a funnel switch 26.
[0046] Wherein, the upper end of as described electric rotor 20 is fixed in the top of the box body 2 via electric rotor fixing block 19; the control end of electric rotor 20 is connected with the output of the control system 27, the upper end of the stirring shaft 22 is connected with the lower end of the electric rotor 20, and the electric rotor 20 drives the stirring shaft 22 to rotate, stirring blade 21 is fixed in on the stirring shaft 22; stirring blade 21 is located in the pot body 23, which passes through pot body slot 28 and set up in box body 2, and the pot body slot 28 is fixed at the box body 2 inner wall, ohmic heated heating wire 24 on the pot body 23 side
DESCRIPTION wall; the center of the bottom of the pot body 23 is provided with the discharge gate, and the lower end of the pot body 23 is also provided with funnel 25, which can communicate with the discharge gate, and the upper end of the funnel 25 is provided with funnel switch 26.
[0047] As described funnel switch 26 is a plug board, a horizontal slot is arranged at the joint of the pot body 23 and the funnel, the plug board is assembled in the slot, and the plug board can horizontally move in the slot to close or open the discharge gate at the bottom of the pot body 23.
[0048] As described stirring blade 21 is spirally arranged on the stirring shaft 22 for stirring the manufactured sand in the pot body.
[0049] As described pot body slot 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 slot 28.
[0050] The side wall of as described pot body 23 is of a hollow interlayer structure, and the heating wires 24 are uniformly distributed in the interlayer, uniformly generate heat through the heating wires to dry the manufactured sand in the pot body 23.
[0051] As described slump cone test mold 17 is the taper structure with both ends open, a slump cone test mold 17 is placed in manufactured sand tray 16 and is arranged in the bottom of box body 2 via manufactured sand tray 16, and the entry of the slump cone test mold 17 just faces the export of the funnel 25 to guarantee that the dried manufactured sand falls into the slump cone test mold 17; the manufactured sand tray 16 is arranged in accepting the manufactured sand which is not falling into a slump cone test mold 17 and spills over at the tamping process, so as to avoid the extravagant of manufactured sand and environmental pollution.
[0052] The bottom of the box body 2 is provided with a base 3, on which is provided with a drive belt 4 used for conveying the slump cone test mold 17 filled with manufactured sand to the tamping position, namely, the position directly under the tamping device; the manufactured sand tray 16 is positioned on the drive belt 4, and the slump cone test mold 17 is placed on the manufactured sand tray 16, and the center of the slump cone test mold 17 is aligned with the center of the funnel 25.
[0053] As described tamping device comprises a fixed pulley 8, a steel wire rope 9, a laser
DESCRIPTION range finder 7, a tamper 10 and a motor 6;
[0054] The fixed pulley 8 is fixed in the top of box body 2, and one end of the steel wire rope
9 is connected with the output shaft of the motor 6, and the motor is located the outside of box
body, while the other end of the steel wire rope 9 bypasses the fixed pulley 8 and is connected
with the top of tamper 10; the control end of the motor 6 is connected with the output end of
the control system 27.
[0055] The front of the box body 2 is provided with an entrance 15 of the box body, and a
steel wire rope pipeline 11 is further arranged on the inner wall of the box body 2, and the
steel wire rope 9 penetrates through the steel wire rope pipeline 11 and bypasses the fixed
pulley 8 to be connected with the tamper 10.
[0056] The laser range finder 7 is arranged at the top of the box body 2 and used for
measuring the distance between the bottom of the tamper 10 and the surface of the
manufactured sand sample in the slump cone test mold 17; the output end of the laser range
finder 7 is connected with the input end of the control system 27.
[0057] The control system 27 comprises the first key 12, the second key 14, a control unit 5,
and a power supply 1 for providing electric energy, wherein the control unit 5 is connected
with the first key 12, the second key 14, the electric rotor 20, the heating wire 24, the drive
belt 4, the motor 6 and the laser rangefinder 7, respectively.
[0058] The first key 12 is used for controlling the operation state of the heating wire 24 and
the electric rotor 20; and the second key 14 is used for controlling the operation state of the
drive belt.
[0059] The following describes in detail the determination method of the manufactured sand
water absorption rate determination device provided by the invention, and comprises the
following steps:
[0060] 1) Opening the entrance 15, and the wet manufactured sand which is prepared by the
method T0330-2005 in Test Methods of Aggregate for Highway Engineering and has been
poured with excessive water is poured into the pot body 23.
[0061] 2) Switching on the power supply 1, clicking the first key 12, 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 manufactured sand sample and
DESCRIPTION preliminarily judges whether the manufactured sand sample reaches the saturated surface dry
state.
[0062] 3) When the manufactured sand reaches the saturated surface dry state, clicking the
first key 12, the heating wire 24 and the electric rotor 20 stop working, moving the plug board,
the discharge gate of the pot body is opened, the dried manufactured sand flows to the slump
cone test mold 17 via the funnel 25, and when the manufactured sand is filled up in the slump
cone test mold 17, closing the funnel switch 26.
[0063] 4) Clicking the second key 14, automatically moving the manufactured sand tray 16
provided with the slump cone test mold 17 to one side of the center of the tamper 10 by the
drive 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 to make the distance smaller than 10mm, wherein the
distance can be realized by adjusting the length of the steel wire rope 9; andfinally, starting
the motor 6 to enable the tamper 10 to freely fall to tamp the manufactured sand.
[0064] The tamper 10 is combined with the laser range finder 7 meets the requirements of a
method T0330-2005 in the Test Methods ofAggregatefor Highway Engineering, and realizes
free falling body high-precision tamping wherein the distance between the end face of the
tamper 10 and a sample is not more than 10 mm.
[0065] 5) And taking out the manufactured sand tray 16 with the slump cone test mold 17
through an entrance, and operating according to a method T0330-2005 in Highway process
aggregate test regulations to judge whether the manufactured sand sample reaches a saturated
face dry state.
[0066] 6) If the manufactured sand reaches a saturated surface dry state, measuring the water
absorption rate of the manufactured sand according to a method T0330-2005 in the Test
Methods ofAggregatefor Highway Engineering. And if the saturated surface dry state is not
reached, pouring the taken-out manufactured sand in the slump cone test mold 17 and the
manufactured sand tray 16 into the pot body 23, and repeating the steps 2-5 until the saturated
surface dry state is reached.
[0067] When the manufactured sand water absorption rate determination device is used, firstly,
heating the manufactured sand through the heating wire of the drying module, meanwhile, the
DESCRIPTION stirring blade is driven by the electric rotor to realize real-time stirring, so that the manufactured sand is uniformly heated, the arrangement of the drying module ensures that the manufactured sand is rapidly and uniformly dried to a saturated surface dry state, and eliminating the loss of fine powder, which can affect the test precision;
[0067] secondly, after the manufactured sand is dried to a saturated surface dry state, it will be automatically loaded into the slump cone test mold; compared with the traditional method of manually dumping and loading the mold, the process realizes that the manufactured sand automatically and quickly loads the slump cone test mold and improves the test efficiency;
[0068] then, moving the manufactured sand tray provided with the slump cone test mold to one side of the center of the tamper by the drive belt until the center of the slump cone test mold is positioned below the center of the tamper; the tamper combines laser range finder to carry out the tamping according to the standards regulated by tamping requirement automatically, which process eliminated manual error in prior art and improved experimental precision.
[0069] The invention and its embodiments have been described above, but the description is not limited thereto; only one embodiment of the invention is shown in the drawings, and the actual structure is not limited thereto. In general, it is to be understood by those skilled in the art that non-creative design of structural forms and embodiments that are similar to the technical solutions without departing from the spirit of the invention shall all fall within the protective scope of the invention.
Claims (10)
- CLAIMS 1. A manufactured sand water absorption rate determination device comprises a box body (2), with a slump cone test mold (17) arranged therein, a drying device (18) and a tamping device are arranged at the top of the slump cone test mold (17); as described drying device (18) comprises a stirring device, a pot body (23) and a heating device; as described pot body (23) is arranged in the box body in a floating manner, and the upper portion of the stirring device is fixed on the box body (2), while the lower portion thereof is stretched into the pot body (23); a heating device is provided on the pot body (23) for drying the manufactured sand while the bottom of the pot body (23) is provided with the entrance for making the dried manufactured sand to pour into the slump cone test mold (17); the tamping device is arranged to tamp the manufactured sand in the slump cone test mold (17).
- 2. The manufactured sand water absorption rate determination device of claim 1 wherein as described stirring device comprises an electric rotor (20), a stirring blade (21) and a stirring shaft (22); the top of as described 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 (20), the stirring blade (21) is arranged on the stirring shaft (22), and the stirring blade (21) stretches into the pot body (23).
- 3. The manufactured sand water absorption rate determination device of claim 1 wherein the side wall of as described pot body (23) is of a hollow interlayer structure, and the heating device is arranged in the interlayer.
- 4. The manufactured sand water absorption rate determination device of claim 1 wherein a funnel is arranged at the center of the bottom of as described pot body, and the dried manufactured sand enters the slump cone test mold (17) via the funnel.
- 5. The manufactured sand water absorption rate determination device of claim 1 wherein as described tamping device comprises a fixed pulley (8), a steel wire rope (9), a tamper (10) and a motor (6); as described fixed pulley (8) is fixed in the top of box body (2), and one end of the steel wire rope (9) is connected with the output shaft of the motor (6), and the motor is located theCLAIMS outside of box body, while the other end of the steel wire rope (9) bypasses the fixed pulley (8)and is connected with the top of tamper (10).
- 6. The manufactured sand water absorption rate determination device of claim 5 whereina laser range finder (7) is arranged in the box body and used for measuring the distancebetween the bottom of the tamper (10) and the surface of the manufactured sand sample in theslump cone test mold (17).
- 7. The manufactured sand water absorption rate determination device of claim 5 wherein asteel wire rope pipeline (11) is further arranged on the inner wall of the box body (2), and theend portion of the steel wire rope (9) penetrates through the steel wire rope pipeline (11) andbypasses the fixed pulley (8) to be connected with the tamper (10).
- 8. The manufactured sand water absorption rate determination device of claim 1 whereinthe bottom of as described box body (2) is provided with a drive belt (4), on which isprovided with the slump cone test mold (17), wherein the drive belt (4) is used for removingthe slump cone test mold (17) to the below of drying device (18) or tamping device.
- 9. The manufactured sand water absorption rate determination device of claim 8 whereinas described slump cone test mold (17) is placed on the drive belt through a manufacturedsand tray (16).
- 10. A determination method of as described manufactured sand water absorption ratedetermination device of any one of claim 1 to 9 comprising the following steps:Step 1, pouring manufactured sand in a wet state into a pot body (23);Step 2, starting the stirring device and the heating device to dry the manufactured sand inthe pot body (23);Step 3, pouring the manufactured sand obtained in the step 2 into the slump cone testmold (17);Step 4, tamping the manufactured sand in the slump cone test mold (17) by adopting atamping device;Step 5, performing a slump test on the compacted manufactured sand to determinewhether the manufactured 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;CLAIMS Step 6, determining the water absorption rate of the manufactured sand reaching the saturated surface dry state.D R AW I N G SFIG. 1FIG. 2
Applications Claiming Priority (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 |
| CN201911384490.9 | 2019-12-28 | ||
| PCT/CN2020/126762 WO2021129184A1 (en) | 2019-12-28 | 2020-11-05 | Manufactured sand water absorption rate measuring device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020413969A1 true AU2020413969A1 (en) | 2021-08-05 |
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ID=69861250
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020413969A Abandoned AU2020413969A1 (en) | 2019-12-28 | 2020-11-05 | Manufactured sand water absorption rate measuring device and method |
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 |
|---|---|---|---|---|
| CN110926902A (en) * | 2019-12-28 | 2020-03-27 | 长安大学 | Device and method for measuring water absorption of machine-made sand |
| CN114274305B (en) * | 2021-12-08 | 2023-11-28 | 重庆茂侨科技有限公司 | Sampling forming equipment |
| CN114486611B (en) * | 2021-12-28 | 2023-07-28 | 安徽伊法拉电气股份有限公司 | Water absorption testing device for capacitor insulation protective sleeve |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005283363A (en) * | 2004-03-30 | 2005-10-13 | Nariyasu Akasaka | Method to measure the amount of water except for water absorption of aggregate of ready-mixed concrete |
| CN202351238U (en) * | 2011-11-30 | 2012-07-25 | 成都市市政工程（集团）有限责任公司 | Slump testing device convenient for charging |
| US10197549B2 (en) * | 2014-04-04 | 2019-02-05 | Schlumberger Technology Corporation | Wellbore cement simulator |
| CN205139143U (en) * | 2015-05-29 | 2016-04-06 | 南通理工学院 | Electronic concrete mix peaceability apparatus |
| CN205786637U (en) * | 2016-05-24 | 2016-12-07 | 中国路桥工程有限责任公司 | A kind of Machine-made Sand saturation plane dry water absorption rate determinator |
| CN206399755U (en) * | 2016-11-28 | 2017-08-11 | 付希尧 | A kind of portable construction sand silt test experimental provision |
| CN209167313U (en) * | 2018-10-16 | 2019-07-26 | 李启冰 | A kind of quickly measurement concrete mix water-cement ratio device |
| CN109269936B (en) * | 2018-11-14 | 2024-03-15 | 福建南方路面机械股份有限公司 | Online detection device for water content of machine-made sand |
| CN109443981A (en) * | 2018-12-13 | 2019-03-08 | 中水北方勘测设计研究有限责任公司 | For quickly measuring the device of sand or stone moisture content |
| CN109342752A (en) * | 2018-12-18 | 2019-02-15 | 中建西部建设贵州有限公司 | A kind of slump automatic detection device and detection method |
| CN209311299U (en) * | 2018-12-18 | 2019-08-27 | 长安大学 | A kind of heavy compaction instrument |
| CN209606266U (en) * | 2019-01-21 | 2019-11-08 | 咸阳天力商品混凝土有限公司 | A kind of water content of sandstone detection system |
| CN110926902A (en) * | 2019-12-28 | 2020-03-27 | 长安大学 | Device and method for measuring water absorption of machine-made sand |
| CN211504909U (en) * | 2019-12-28 | 2020-09-15 | 长安大学 | Mechanism sand water absorption rate survey device |
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| WO2021129184A1 (en) | 2021-07-01 |
| CN110926902A (en) | 2020-03-27 |
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