CN109752276A - A kind of three axis sample wetting-drying circular tester of the soil body and its test method - Google Patents
A kind of three axis sample wetting-drying circular tester of the soil body and its test method Download PDFInfo
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- CN109752276A CN109752276A CN201910129755.4A CN201910129755A CN109752276A CN 109752276 A CN109752276 A CN 109752276A CN 201910129755 A CN201910129755 A CN 201910129755A CN 109752276 A CN109752276 A CN 109752276A
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- 238000001035 drying Methods 0.000 title claims abstract description 45
- 239000002689 soil Substances 0.000 title claims abstract description 29
- 238000010998 test method Methods 0.000 title claims description 10
- 238000005303 weighing Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000002706 hydrostatic effect Effects 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000000643 oven drying Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011504 laterite Substances 0.000 description 1
- 229910001710 laterite Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of three axis sample wetting-drying circular testers of the soil body, it include the chamber of movable opening, chamber is placed in oven interior, chamber and baking oven top plate are respectively provided with 1 hole, Weighing mechanism is provided with outside baking oven top plate, Weighing mechanism is connect with cord, and cord passes through Kong Houyu and is located at the connection of the sample lateral confinement structure in chamber, room humidifier is provided in chamber beside sample lateral confinement structure, chamber bottom is equipped with drainpipe.The present invention humidifies sample using atomizing humidifying performance mode, and humidification mitigates, and sample is not immersed directly in water, and with the presence in Practical Project due to ground surface material, the not direct engineering contacted with water of roadbed body is practical to be consistent.The present invention using oven drying, the temperature of oven interior be it is stable, samples dried is uniform, avoid it is dry with super bath etc. and caused by it is upper it is dry under it is wet, outer it is dry in wet phenomenon.Oven temperature is adjustable, influence of the analog difference drying temperature to sample.
Description
Technical field
The present invention relates to a kind of three axis sample wetting-drying circular tester of the soil body and its test methods, belong to soil body dry and wet and follow
Ring test technical field.
Background technique
The earth's surface of the domestic carbonate rock Distribution Area in Guizhou Province is generally dispersed with residual laterite, the general 5- of cladding thickness
7m, most thick reachable 20m or more, inevitably encounters a large amount of admaic earth in highway construction.Its intensity, change after roadbed is built up
Shape characteristic and roadbed soil's water content are closely related.For admaic earth in arid season dehydration shrinkage, rainy season absorbs water again is saturated expansion, this
The reciprocal effect of sample will lead to the variation of filler soil structures, and native intensity gradually decreases, and finally cause the destruction of roadbed.But nothing
By being that strength reduction or deformation increase, destabilization of roadbed destruction is the variation of filler mechanical characteristic, long-term dry and wet after all
Ringing reduces mechanical properties of red clay.In existing wetting-drying test, the method often taken is immersion-drying
Method, however there is shortcomings in this way: (1) in soaking process since moisture directly impregnate sample, cause to try
Sample is extremely satisfied water, expansion, loose, argillization, and having no intensity can say or even sample destruction, can not carry out wetting-drying test.It is practical
In engineering, in addition to topsoil is external, deep soil can not directly be impregnated by water.(2) the existing dress that can control moisture content
Set be in the drying process electronic balance be directly exposed under high temperature, and electronic balance working environment should be in room temperature.
Electronic balance read untrue under high temperature.So be badly in need of designing a kind of humidification and drying process can simulate it is live practical slowly,
It uniformly humidifies, dry device.In (3) three axis sample soaking processes, since surrounding is by trivalvular limitation, sample can only be from upper
Portion and lower part immersion, cause upper and lower part moisture content to be greater than middle part, sample should be that upper, middle and lower are comprehensive in Practical Project
Immersion.
Summary of the invention
The object of the present invention is to provide a kind of three axis sample wetting-drying circular tester of the soil body and its test methods.It should
Experimental rig and test method can be avoided the soil body and be immersed directly in water, while realize the comprehensive immersion of sample, furthermore test
The reading of Weighing mechanism is more accurate in the process.
Technical solution of the present invention: a kind of three axis sample wetting-drying circular tester of the soil body, includes movable opening
Chamber, chamber are placed in oven interior, and chamber and baking oven top plate are respectively provided with 1 hole, are provided with title outside baking oven top plate
Heavy-duty machine structure, Weighing mechanism are connect with cord, and cord passes through Kong Houyu and is located at the connection of the sample lateral confinement structure in chamber, sample side
Room humidifier is provided in chamber beside limit structure, chamber bottom is equipped with drainpipe.
Three axis sample wetting-drying circular tester of the soil body above-mentioned, the Weighing mechanism includes to be placed on baking oven top plate
Hydrostatic power electronic balance, hydrostatic power electronic balance bottom be equipped with hook.
Three axis sample wetting-drying circular tester of the soil body above-mentioned, the baking oven top plate is equipped with thermal insulation board, on thermal insulation board
Also it is equipped with hole, is placed with hydrostatic power electronic balance on thermal insulation board.
Three axis sample wetting-drying circular tester of the soil body above-mentioned, chamber front, rear, left and right surrounding are push-and-pull glass
Glass door, top plate are 2 pieces, are flexibly connected through fulcrum with the frame of chamber side, are equipped on the inside of the frame of chamber side oblique
The strut of upper stretching.
Three axis sample wetting-drying circular tester of the soil body above-mentioned, the room humidifier are indoor atomizing humidifier,
It include water storage box, water storage box bottom is equipped with atomizer, and atomizer is connect with nozzle.
Three axis sample wetting-drying circular tester of the soil body above-mentioned, the sample lateral confinement structure includes Porous Base, more
Hole backplate surface is equipped with annular groove and threaded hole, and three valves are placed in annular groove, and lantern ring, lantern ring warp are placed at the top of three valves
Pull rod is connect with Porous Base, is densely covered with water seepage hole on three valves and Porous Base.
A kind of three axis sample wetting-drying test method of the soil body, by the way that chamber is placed in oven interior, outside baking oven
Weighing mechanism is set, and Weighing mechanism is connect through cord with sample lateral confinement mechanism hanging inside chamber, in sample lateral confinement mechanism
Sample is placed, places room humidifier in the chamber beside sample lateral confinement mechanism；Test process includes humidification and does
Dry process in humidification, humidifies sample by the room humidifier inside chamber, by chamber in drying process
It opens, the chamber of its inside is dried by baking oven, during test, by the Weighing mechanism outside baking oven to lateral confinement
Mechanism weighs.
In three axis sample wetting-drying test method of the soil body above-mentioned, tests concrete steps are as follows:
A, the quality that sample to be tested is weighed up before test, is denoted as m0With initial aqueous rate ω0；
B, according to the known target moisture content ω of test requirements document1, by formulaIt obtains and moistens to target moisture content ω1When corresponding sample mass m1,
Electronic balance reading is M when then reaching target moisture content1=m1-m0；
C, it opens room humidifier to humidify sample, and observes the reading of Weighing mechanism, when the reading of Weighing mechanism
For M1When, room humidifier is closed, a period of time is then allowed to stand；
D, according to the known target moisture content ω of test requirements document2, by formulaIt obtains dry to target moisture content ω2When corresponding sample mass m2,
The reading of electronic balance is M when then reaching target moisture content2=m1-m2；
E, chamber is opened, the scheduled temperature of baking oven is set according to the temperature of test requirements document, sample is carried out by baking oven
It is dry, when electronic balance reading returns to M2When, baking oven is closed, a period of time is then allowed to stand；
F, it according to the drying moistening cycle of test requirements document, repeats the above steps.
Beneficial effects of the present invention: compared with prior art, beneficial effects of the present invention are as follows:
1, the present invention humidifies sample using atomizing humidifying performance mode, and humidification mitigates, and sample is not immersed directly in water,
With the presence in Practical Project due to ground surface material, the not direct engineering contacted with water of roadbed body is practical to be consistent.
2, the present invention using oven drying, the temperature of oven interior be it is stable, samples dried is uniform, avoids use
Super bath etc. it is dry and caused by it is upper it is dry under it is wet, outer it is dry in wet phenomenon.Oven temperature is adjustable, analog difference drying temperature pair
The influence of sample.
3, it is inaccurate to avoid the balance reading as caused by temperature by the way that electronic balance to be placed in except drying box by the present invention
Really.The real-time control to sample moisture content can be realized using electronic balance simultaneously.
4, for the present invention by three valve outer wall water seepage holes, the water seepage hole of the Porous Base of lower part and top, analog is practical
Operating condition three-dimensional is soaked mode, and in the drying process, moisture can be distributed from three-dimensional, guarantees that soil sample is wet, uniform drying.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention；
Attached drawing 2 is sample lateral confinement structural schematic diagram of the invention；
Appended drawing reference: 1- top plate；The hole 2-；3- strut；4- fulcrum；5- sliding glass door；6- drainpipe；7- baking oven；8- is quiet
Waterpower electronic balance；9- hook；10- thermal insulation board；11- cord；12- Porous Base；Tri- valve of 13-；14- pull rod；15- lantern ring；
16- nut；17- screw thread；18- thread groove；19- sample；20- circular hole；21- room humidifier；22- water storage box；23- atomizer；
24- nozzle；25- baking oven gas vent；26- sample.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
The embodiment of the present invention: a kind of three axis sample wetting-drying circular tester of the soil body includes as shown in attached drawing 1-2
The chamber of movable opening, chamber are placed in the inside of baking oven 7, are respectively provided with 1 hole 2 among 7 top plate of chamber and baking oven,
2 holes are on the same vertical line, and Weighing mechanism is provided with outside 7 top plate of baking oven, and Weighing mechanism is placed in the top in hole 2,
The bottom of Weighing mechanism is connect with cord 11, and cord 11 is each passed through behind the hole 2 of baking oven 7 and chamber and is located in chamber
Sample lateral confinement structure connection, so that sample lateral confinement structure is vacantly placed in chamber.In chamber beside sample lateral confinement structure
It is provided with room humidifier 21, chamber bottom is equipped with drainpipe 6.Chamber bottom may be configured as intermediate low, and two head heights incline
Biassed fabric facilitates water flow in humidification to be collected in drainpipe 6.
Entire test process mainly includes humidification and dry 2 stages, and the two stages are to needing to being placed with examination
The sample lateral confinement structure of sample 26 is weighed.Due to being connect by cord 11 with Weighing mechanism, therefore can be claimed by Weighing mechanism
The quality of lateral confinement of materialsing structure different phase.When humidification, room humidifier 21 is opened, the water mist that room humidifier 21 sprays is saturating
Sample 26 can be humidified after crossing sample lateral confinement structure, the water that chamber bottom plate is dropped in humidification flows through drainpipe
6 discharges.In drying course, chamber is opened, then starts baking oven 7, the sample 26 in chamber can be dried.By
It is placed on the outside of baking oven 7 in Weighing mechanism, under room temperature, therefore the raising of 7 internal temperature of baking oven will not be to Weighing mechanism
Reading impact.
The Weighing mechanism includes the hydrostatic power electronic balance 8 being placed on 7 top plate of baking oven, hydrostatic power electronic balance 8
Bottom is equipped with hook 9.Hook 9 is for connecting cord 11.
7 top plate of baking oven is equipped with thermal insulation board 10, and hole 2 is also equipped on thermal insulation board 10, is placed with hydrostatic on thermal insulation board 10
Power electronic balance 8.Since 7 top plate of baking oven is equipped with the hole 2 passed through for cord 11, therefore heat is had when heating and is distributed from the hole 2
Out, can inevitably read on the weighing of hydrostatic power electronic balance 8 is influenced, therefore is provided with thermal insulation board 10, can block portion with lattice
Divide heat, so that the reading of hydrostatic power electronic balance 8 is more accurate.Hole 2 on thermal insulation board 10 is also for for cord 11 from this
Place across.
Chamber front, rear, left and right surrounding is sliding glass door 5, and top plate 1 is 2 pieces, through fulcrum 4 and chamber side
Frame be flexibly connected, the strut 3 stretched out obliquely is equipped on the inside of the frame of chamber side.In drying course, test is pushed
The sliding glass door 5 of case front, rear, left and right surrounding, can be by chamber side opening, while pulling top plate 1 makes it around fulcrum 4
Rotation can open test roof box, so that entire chamber is convenient for drying all in opening-wide state.And it is provided with strut 3
When being for the ease of blocking test case, top plate 1 is supported by strut 3.
The room humidifier 21 is indoor atomizing humidifier, present market various indoor atomizing humidifiers on sale
It selects.It mostly include water storage box 22 in now current indoor atomizing humidifier structure, 22 bottom of water storage box is equipped with atomizer 23,
Atomizer 23 is connect with nozzle 24.Dividing in water storage box 22 is atomized by atomizer 23, the water mist after atomization passes through spray
Mouth 24 sprays.
The sample lateral confinement structure includes Porous Base 12, and 12 surface of Porous Base is equipped with annular groove and threaded hole 18,
It is placed with three valves 13 in annular groove, lantern ring 15 is placed at the top of three valves 13, lantern ring 15 is ladder-type structure, ladder-type structure
Centre protrusion on be provided with 1 groove, the lantern ring 15 on protrusion side is equipped with the through-hole passed through for pull rod 14.Use process
In, three valves, 13 bottom is placed in the annular groove of Porous Base 12, then sample 26 is placed in three valves 13, then
Lantern ring 15 is covered, so that then being passed through on lantern ring 15 with pull rod 14 in the groove being caught in 15 protrusion of lantern ring at the top of three valves 13
Through-hole, bottom thread are screwed into the threaded hole 18 of Porous Base 12, are then screwed into nut 16 on pull rod 14 again, thus by more
Hole bottom plate 12, three valves 13 and 15 three of lantern ring locking link together.Two head ends of pull rod 14 are both provided with screw thread 17, side
Just it is threadedly coupled with other component.Water seepage hole 19 is densely covered on three valves 13 and Porous Base 12.During test, sample 26
In the upward expansion process that absorbs water, the part beyond three valves 13 will receive the restriction effect of 15 groove roof of lantern ring.Three valves 13
Aperture can reduce moisture in humidification and improve test accuracy in the attachment on three valves, 13 surface.
A kind of three axis sample wetting-drying test method of the soil body, by the way that chamber is placed in oven interior, outside baking oven
Weighing mechanism is set, and Weighing mechanism is connect through cord with sample lateral confinement mechanism hanging inside chamber, in sample lateral confinement mechanism
Sample is placed, places room humidifier in the chamber beside sample lateral confinement mechanism；Test process includes humidification and does
Dry process in humidification, humidifies sample by the room humidifier inside chamber, by chamber in drying process
It opens, the chamber of its inside is dried by baking oven, during test, by the Weighing mechanism outside baking oven to lateral confinement
Mechanism weighs.
Tests concrete steps are as follows:
A, the quality that sample to be tested is weighed up before test, is denoted as m0, and determine the initial aqueous rate ω of sample to be tested0.It will examination
Sample is fitted into three valves, and three valves are then packed into Porous Base, while with pull rod and nut by Porous Base, three valves and set
Ring is fixed, and an entirety, i.e. sample lateral confinement mechanism are become, with cord by sample lateral confinement mechanism and hydrostatic power electronic balance
Hydrostatic power electronic balance is read and is reset after hydrostatic power electronic balance is stablized by hook connection.
B, according to the known target moisture content ω of test requirements document1, by formulaIt obtains and moistens to target moisture content ω1When corresponding sample mass m1, then
Electronic balance reading is M when reaching target moisture content1=m1-m0。
C, the sliding glass door of chamber surrounding and the top plate at top are closed, room humidifier is opened and sample is added
It is wet, and the reading of hydrostatic power electronic balance is observed, when the reading of hydrostatic power electronic balance is M1When, room humidifier is closed, so
After stood for 24 times, spread uniform moisture；
D, after standing 24 hours, according to the known target moisture content ω of test requirements document2, by formulaIt obtains dry to target moisture content ω2When corresponding sample mass m2,
The reading of electronic balance is M when then reaching target moisture content2=m1-m2。
E, the sliding glass dream of chamber surrounding and the top plate at top are opened, it is pre- to set baking oven according to the temperature of test requirements document
Fixed temperature, to samples dried.When hydrostatic power electronic balance reading returns to M2When, baking oven is closed, stands 24 hours；
F, it according to the drying moistening cycle of test requirements document, repeats the above steps, until entire off-test.
Claims (8)
1. a kind of three axis sample wetting-drying circular tester of the soil body, it is characterised in that: it include the chamber of movable opening, examination
Tryoff is placed in baking oven (7) inside, and chamber and baking oven (7) top plate are respectively provided with 1 hole (2), are provided with outside baking oven (7) top plate
Weighing mechanism, Weighing mechanism are connect with cord (11), cord (11) pass through hole (2) afterwards be located at chamber in sample lateral confinement knot
Structure connects, and is provided with room humidifier (21) in the chamber beside sample lateral confinement structure, and chamber bottom is equipped with drainpipe
(6)。
2. three axis sample wetting-drying circular tester of the soil body according to claim 1, it is characterised in that: the Weighing mechanism
It include the hydrostatic power electronic balance (8) being placed on baking oven (7) top plate, hydrostatic power electronic balance (8) bottom is equipped with hook
(9)。
3. three axis sample wetting-drying circular tester of the soil body according to claim 2, it is characterised in that: the baking oven (7)
Top plate is equipped with thermal insulation board (10), is also equipped with hole (2) on thermal insulation board (10), is placed with hydrostatic power electronic balance on thermal insulation board (10)
(8)。
4. three axis sample wetting-drying circular tester of the soil body according to claim 1, it is characterised in that: the chamber
Front, rear, left and right surrounding is sliding glass door (5), and top plate (1) is 2 pieces, and the frame activity through fulcrum (4) and chamber side connects
It connects, the strut (3) stretched out obliquely is equipped on the inside of the frame of chamber side.
5. three axis sample wetting-drying circular tester of the soil body according to claim 1, it is characterised in that: the interior humidification
Device (21) is indoor atomizing humidifier comprising is had water storage box (22), water storage box (22) bottom is equipped with atomizer (23), atomizer
(23) it is connect with nozzle (24).
6. three axis sample wetting-drying circular tester of the soil body according to claim 1, it is characterised in that: the sample lateral confinement
Structure includes Porous Base (12), and Porous Base (12) surface is equipped with annular groove and threaded hole (18), is placed in annular groove
Three valves (13), three valves (13) top are placed with lantern ring (15), and lantern ring (15) is connect through pull rod (14) with Porous Base (12),
Water seepage hole (19) are densely covered on three valves (13) and Porous Base (12).
7. a kind of three axis sample wetting-drying test method of the soil body, it is characterised in that: by the way that chamber is placed in oven interior,
Weighing mechanism is set outside baking oven, and Weighing mechanism is connect through cord with sample lateral confinement mechanism hanging inside chamber, sample side
It limits and places sample in mechanism, place room humidifier in the chamber beside sample lateral confinement mechanism；Test process includes humidification
Process and drying process in humidification, humidify sample by the room humidifier inside chamber, in drying process
Chamber is opened, the chamber of its inside is dried by baking oven, during test, passes through the weigher outside baking oven
Structure weighs to lateral confinement mechanism.
8. three axis sample wetting-drying test method of the soil body according to claim 7, it is characterised in that: tests concrete steps
Are as follows:
A, the quality that sample to be tested is weighed up before test, is denoted as m0With initial aqueous rate ω0；
B, according to the known target moisture content ω of test requirements document1, by formula
It obtains and moistens to target moisture content ω1When corresponding sample mass m1, then electronic balance reading is M when reaching target moisture content1=
m1-m0；
C, it opens room humidifier to humidify sample, and observes the reading of Weighing mechanism, when the reading of Weighing mechanism is M1
When, room humidifier is closed, a period of time is then allowed to stand；
D, according to the known target moisture content ω of test requirements document2, by formulaIt obtains dry to target moisture content ω2When corresponding sample mass m2,
The reading of electronic balance is M when then reaching target moisture content2=m1-m2；
E, chamber is opened, the scheduled temperature of baking oven is set according to the temperature of test requirements document, sample is dried by baking oven,
When electronic balance reading returns to M2When, baking oven is closed, a period of time is then allowed to stand；
F, it according to the drying moistening cycle of test requirements document, repeats the above steps.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129755.4A CN109752276A (en) | 2019-02-21 | 2019-02-21 | A kind of three axis sample wetting-drying circular tester of the soil body and its test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129755.4A CN109752276A (en) | 2019-02-21 | 2019-02-21 | A kind of three axis sample wetting-drying circular tester of the soil body and its test method |
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| Publication Number | Publication Date |
|---|---|
| CN109752276A true CN109752276A (en) | 2019-05-14 |
Family
ID=66407613
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910129755.4A Pending CN109752276A (en) | 2019-02-21 | 2019-02-21 | A kind of three axis sample wetting-drying circular tester of the soil body and its test method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286064A (en) * | 2019-08-05 | 2019-09-27 | 贵州大学 | A kind of mineral grain wetability measuring device and its measurement method |
| CN112268840A (en) * | 2020-11-05 | 2021-01-26 | 山东电力研究院 | Test device and method for testing anti-wettability of coating |
| CN114993875A (en) * | 2022-06-01 | 2022-09-02 | 浙江大学 | Device and method for testing balance water content of porous material of building envelope |
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| CN109100225A (en) * | 2018-09-30 | 2018-12-28 | 贵州大学 | The wetting-drying circular tester that soil body three-dimensional is soaked under a kind of load action |
| CN209727679U (en) * | 2019-02-21 | 2019-12-03 | 贵州大学 | A kind of three axis sample wetting-drying circular tester of the soil body |
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| CN105004850A (en) * | 2015-06-03 | 2015-10-28 | 中南大学 | Testing device and method for quantitatively simulating drying-humidifying cycle of soil triaxial sample |
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| CN109100225A (en) * | 2018-09-30 | 2018-12-28 | 贵州大学 | The wetting-drying circular tester that soil body three-dimensional is soaked under a kind of load action |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110286064A (en) * | 2019-08-05 | 2019-09-27 | 贵州大学 | A kind of mineral grain wetability measuring device and its measurement method |
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| CN112268840A (en) * | 2020-11-05 | 2021-01-26 | 山东电力研究院 | Test device and method for testing anti-wettability of coating |
| CN114993875A (en) * | 2022-06-01 | 2022-09-02 | 浙江大学 | Device and method for testing balance water content of porous material of building envelope |
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