CN106680195A - Test device for acid and alkali resistance of geosynthetics - Google Patents
Test device for acid and alkali resistance of geosynthetics Download PDFInfo
- Publication number
- CN106680195A CN106680195A CN201710188849.XA CN201710188849A CN106680195A CN 106680195 A CN106680195 A CN 106680195A CN 201710188849 A CN201710188849 A CN 201710188849A CN 106680195 A CN106680195 A CN 106680195A
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- China
- Prior art keywords
- geosynthetics
- acid
- test
- proof box
- proof
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Abstract
The invention discloses a test device for acid and alkali resistance of geosynthetics and relates to the technical field of testing of geosynthetics. The test device comprises an electronic control system, a mixing system, a casing and a working chamber, wherein the working chamber comprises three constant-temperature test chambers, sample racks are arranged in each constant-temperature test chamber, a test chamber cover is arranged on the corresponding test chamber, an interlayer is arranged on one side of each test chamber and is communicated with the interior of the corresponding test chamber; a drainage pipe connected with the working chamber is arranged on the casing; the electric control system comprises a heating device and a temperature control device; the mixing system comprises motors, rotating shafts and mixing blades, the motors are fixed at the tail parts of the upper ends of the corresponding test chambers, the rotating shafts are connected with the motors, the mixing blades are arranged on the rotating shafts, and the rotating shafts and the mixing blades are located in the interlayers in the corresponding test chambers. The test device is simple in structure and convenient to operate, greatly reduces errors caused by influencing factors such as human, environment and the like, can perform equal-accuracy immersion in acid, alkali and water at the same time and conducts two groups of tests at the same time, and test results are more accurate.
Description
Technical field
The present invention relates to the corrosion-resistant technical field of test material, more particularly to geosynthetics technical field of measurement and test.
Background technology
It is a kind of new geomaterial that geosynthetics is compared with traditional masonry, timber, cement and reinforcing bar,
It is widely used in the development of the national economy such as highway, railway, water conservancy, water transport, electric power, mine, agricultural field, to improving structure
Performance and stability are played an important role.Geosynthetics in application process be placed in inside soil body, surface or and its
His material collective effect, to play the effect such as anti-filter, draining, antiseepage, reinforcement and protection.But because it is in different environment
In, surrounding soil and liquid medium will be presented different sour, alkaline energy, and geosynthetics belongs to macromolecular material, at this
Planting environment can limit the performance of its performance, show as the reduction of its mechanical property, or even geosynthetics can be produced serious
Destruction, therefore, in the Practical Project of acid or alkali environment, need to carry out acid-proof alkaline test to earth working material before construction, really
Fixed its durability.
Determining the test chamber of the performance need of the antiacid alkali liquor of geosynthetics should have sufficiently large volume, test liquid
The amount of body should be more than 30 times of sample weight, and should keep test solution with stationary temperature（60±1℃）Place the regular hour,
Then relative analyses impregnate the tensile property of sample, size and area change situation after front and dipping.
The assay device only one of which operating room of geosynthetics acid-proof alkaline is tested at present, and can only hold one kind
Solution, carries out needing to change solution during contrast test, so it is difficult to ensure that keeping identical when testing in three kinds of solution environmentals
Experimental condition.Or prepare and hold three instruments of acid solution, normal aqueous solution and alkali liquor respectively, not only high cost, and can not
Identical experimental condition is kept during guarantee test.Such as the patent documentation of Application No. 201410020028.1, a kind of soil is disclosed
Work cloth and its article is antiacid, alkali liquor test immersion Sample devices, the device only one of which test solution holder, it is impossible to while right
Earth working material carries out acid and alkali resistance performance test and arranges contrast test；And test and only arrange in holder two samples and fix
Device, it is impossible to while carrying out multigroup test, it is impossible to reduce the risk of test failure, result of the test is not accurate etc. enough.Therefore, research and develop
It is a kind of can operate simultaneously with constant temperature, the big volume and geosynthetics acid and alkali-resistance device little to sample effect has when testing
Important using value.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of geosynthetics acid-proof alkaline test device, structure letter
Error that is single, easy to operate, substantially reducing the influence factors such as artificial, environment and produce.Test device of the present invention is equipped with three
Proof box, can be while the dipping for carrying out acid, alkali and water of equally accurate, while concentration is compared in control section, be easy to test three
The centralized operation of case；Arranging ten layers of specimen mounting can simultaneously do two groups of tests, and result of the test is more accurate；This device also can be avoided
During fixed sample, effective mechanical stress that sample is produced；It is also ensured that test is carried out under constant temperature；Agitating device can
According to different materials and engineering, speed regulation is carried out, so that rapid screening goes out colory geosynthetics.
To solve above-mentioned technical problem, the technical solution used in the present invention is：
A kind of geosynthetics acid-proof alkaline test device, including electric-control system, stirring system, shell and operating room；Work
Make room to be made up of three Homothermal Proof Box, specimen mounting is provided with Homothermal Proof Box, proof box is provided with test case lid, each test
The side of case is provided with interlayer, and interlayer is connected with corresponding proof box inside；
Shell is provided with the drain pipe being connected with operating room；
Electric-control system includes heater and attemperating unit；
Stirring system includes motor, rotary shaft and stirring vane, and motor is fixed on proof box upper ends, rotary shaft and motor phase
Even, rotary shaft is provided with stirring vane, and wherein rotary shaft and stirring vane is located in the interlayer in proof box.
Test case lid adopts front single open-type, test case lid to be provided with silicone rubber seal dress with the test casing contact position
Put, test case lid is supported by hydraulic support system.
Proof box is made using 316L rustless steels, and 10 layers of specimen mounting are provided with each proof box.
Specimen mounting level interval is 5cm, and distance of the specimen mounting away from test chamber interior wall is 1cm.
Specimen mounting is made using 316L rustless steels, and is provided with equally distributed circular hole.
Shell is made using 304 rustless steels, and outer casing bottom is provided with movable pulley, and shell is provided with control panel.
Control panel includes front panel and rearmounted panel；Front panel be located at the positive right side of device, be provided with temperature controller,
Timer, stirring button, stirring timing button and power knob；
Rearmounted panel is provided with mixing speed actuator and earth leakage circuit-breaker；
Temperature controller connects temperature control sensor, and it possesses the warm warning system of independent limit；Temperature controller adopts band overtemperature alarm power-off modular,
With the Intelligence Regulator for adjusting temperature correction function.
Three Homothermal Proof Box are placed side by side.
Proof box is provided with heat-insulation layer, and insulation layer thickness is 100mm, and heat-insulation layer adopts ultra-fine heat insulation glass cotton.
Proof box inside height × width x length is 65cm × 100cm × 30cm.
Electric-control system includes heater and attemperating unit, and heating devices heat adopts external circulation heating, to keep as far as possible
Proof box operating room has larger space, and heating power is 2KW, and hot air circulating system is by the wind that can be continuously run at high temperature
Machine and special air channel constitute, and work indoor temperature is uniform.Attemperating unit includes temperature controller and temperature control sensor, temperature controller connection temperature
Control sensor, it possesses the warm warning system of independent limit, interrupts automatically more than limit temperature, it is ensured that experiment safety operation does not occur
It is unexpected.
It is the heat-insulation layer of 100mm thickness between the inwall of proof box shell distance proof box.
Temperature controller is using band overtemperature alarm power-off modular, the Intelligence Regulator with regulation temperature correction function.
The inwall of proof box is referred to：The surrounding of each proof box, after being put into specimen mounting, the four of specimen mounting distance test (DT) case
All distances are 1 cm.
Sandwich establishment may insure experimental safe, have interlayer to be put into and can avoid and stirring vane when taking out specimen mounting
Collision, while sandwich establishment can reduce rotary resistance of the stirring vane in agitated liquid；Interlayer and corresponding constant temperature
Proof box is connected.Homothermal Proof Box is separated by one piece of apertured partition, dividing plate side is operating room, and opposite side is interlayer.
It is using the beneficial effect produced by above-mentioned technical proposal：
Test device of the present invention is equipped with three proof boxs, can equally accurate the dipping for carrying out acid, alkali and water, while control section ratio
Relatively concentrate, be so easy to the centralized operation to three proof boxs；In addition, each proof box is equipped with 10 specimen mountings, two can be done
Group test, result of the test is more accurate；The specimen mounting of fixed sample is designed to uncovered is hollow and bottom is dispersed with uniform circular hole
Cuboid, both ensure that the distance between sample and sample were required in specification, when turn avoid fixed sample, sample is produced
Effective mechanical stress；Additionally, this device is to ensure that constant temperature adopts three measures：Sealing device on test solution holder lid, temperature
Degree sensor, the heat-insulation layer arranged in proof box, heat-insulation layer adopts superfine glass heat-preservation cotton, it is ensured that rustless steel work during test
Making room operating temperature is（60±1）℃；Finally, because test period is shorter than the time used of geosynthetics, so
Accelerated test is carried out, therefore a mixing speed actuator is equipped with for each proof box operating room on this device, so can root
According to different materials, different engineerings, corresponding speed regulation is carried out, in the hope of quickly filtering out colory geotechnique's synthesis
Material.This inventive structure is simple and convenient to operate, the error for substantially reducing the influence factors such as artificial, environment and producing.
Description of the drawings
Fig. 1 is the top view of test device of the present invention；
Fig. 2 is the front view of test device of the present invention；
Fig. 3 is the side view of test device of the present invention；
Fig. 4 is the rearview of test device of the present invention；
Fig. 5 is the structural representation of test device stirring vane of the present invention；
Fig. 6 is the top view of test device specimen mounting of the present invention；
Fig. 7 is the side view of test device specimen mounting of the present invention；
Fig. 8 is the front view of test device specimen mounting of the present invention；
Fig. 9 is the structural representation of test device front panel of the present invention；
Figure 10 is the structural representation of the rearmounted panel of test device of the present invention；
Wherein：1 is proof box, and 2 is shell, and 3 is motor, and 4 are test case lid, and 5 is front panel, and 6 is movable pulley, and 7 is interlayer,
8 is stirring vane, and 9 is rotary shaft, and 10 is drain pipe, and 11 is rearmounted panel, and 12 is hydraulic support device.
Specific embodiment
Geosynthetics acid-proof alkaline test device, including electric-control system, stirring system, shell 2 and operating room；
Operating room is made up of three Homothermal Proof Box 1, and three Homothermal Proof Box 1 are placed side by side, and proof box 1 adopts 316L rustless steels
Make, proof box 1 is provided with heat-insulation layer, insulation layer thickness is 100mm, and heat-insulation layer adopts ultra-fine heat insulation glass cotton, in proof box 1
Portion's height × width x length is 65cm × 100cm × 30cm；
Specimen mounting is provided with Homothermal Proof Box 1, in each proof box 1 10 layers of specimen mounting are provided with；Specimen mounting level interval is 5cm,
Distance of the specimen mounting away from the inwall of proof box 1 is 1cm；Specimen mounting is made using 316L rustless steels, and is provided with equally distributed circular hole.
Proof box 1 is provided with test case lid 4, and test case lid 4 adopts front single open-type, test case lid 4 and the proof box 1
Body contact position is provided with silicone rubber seal device, and test case lid 4 is supported by hydraulic support device 12.
The side of each proof box is provided with interlayer 7, and interlayer 7 is connected with corresponding proof box inside.
Shell 2 is provided with the drain pipe 10 being connected with operating room；Shell 2 is made using 304 rustless steels, and the bottom of shell 2 sets
There is movable pulley 6, shell 2 is provided with control panel.
Control panel includes front panel 5 and rearmounted panel 11；Front panel is located at the positive right side of device, is provided with temperature control
Device, timer, stirring button, stirring timing button and power knob；
Rearmounted panel is provided with mixing speed actuator and earth leakage circuit-breaker；
Temperature controller connects temperature control sensor, and it possesses the warm warning system of independent limit；Temperature controller adopts band overtemperature alarm power-off modular,
With the Intelligence Regulator for adjusting temperature correction function.
Electric-control system includes heater and attemperating unit；
Stirring system includes motor 3, rotary shaft and stirring vane, and motor 3 is fixed on the upper ends of proof box 1, rotary shaft and electricity
Machine 3 is connected, and rotary shaft 9 is provided with stirring vane 8, and wherein rotary shaft 9 and stirring vane 8 is located in the interlayer 7 in proof box 1.
The using method of apparatus of the present invention is as follows：
First stage：Start arranging system device；
A, by the sulphuric acid of the 0.025mol/L between satisfactory pH=2~10, calcium hydroxide [Ca (OH)2] saturation suspension,
Test water（Test water is 3 grades of water）In slowly pouring into three Homothermal Proof Box respectively, because sample wants thorough impregnation in examination
In liquid, should according to the number of done sample determine pour into test solution number, the amount of test liquid should be 30 times of sample weight
More than；In addition during soak test, medium should be kept（Soak）Composition it is constant.Reduce in effective element concentration, or
In the case that phase system changes, concentration should be adjusted or liquid is changed.
B, the main switch of proof box is opened, press the power knob of proof box control section.Then temperature controller is operated to make
Temperature reaches（60±1）℃.
Second stage：The geosynthetics sample of the good immersion of layered arrangement
C, this device can be to determine the tensile property of sample, size changing rate and mass area ratio before and after immersion to be soaked
Stain works.Three groups of samples of clip from sample, one group of dipping sample for being used as resistance to acid solution；One group of dipping sample for being used as resistance to alkali liquor；One
Group is used as control sample.Per group includes 5 pieces of samples.For the measure of mass area ratio：The size of every piece of sample at least 100 mm
×100 mm；For change in size and the measure of tensile property：Vertically and horizontally determine respectively, size at least 300 mm of every piece of sample
×50 mm.The size of every piece of sample of woven fabric at least 300 mm × 60 mm；GSZ sample should keep complete on width
Unit, length direction should at least three junction points, there is a junction point centre of sample.Answer many for several pieces of examinations are gone out in addition
Sample, standby sample when failing as tension test.As having coating on fruit product, and the coating in use can be molten
Immersion is saturating, then to coating sample and should remove sample after coating and tests respectively.If do not tested by above-mentioned requirements, just should
Indicate in test report：It is possible to change its chemical resistance after the coating damage of sample.Joint product should respectively evaluate each layer
Acid and alkali-resistance fluidity energy.
D, according to the different performance of earth working material to be tested, the various sizes of sample of cutting places on the sample for cutting
It is fixed on that uncovered is hollow and bottom is dispersed with the cuboid specimen mounting of uniform circular hole, is then individually placed to contain sulfuric acid solution and hydrogen
Soaked in the container of calcium oxide solution.
Phase III：Motor is opened, mixing speed is adjusted, starts to stir test solution.
E, adjustment mixing speed, using the stirring vane in rotary shaft the continuous stirring to test solution is realized.Calcium hydroxide is molten
Liquid answers continuous stirring, sulfuric acid solution at least to stir once daily, determines the original ph of simultaneously recording liquid.As liquid continuously makes
With, at least to add or change once per 7d, pH value during keeping initial.Liquid and sample answer avoid light place.Proof box
There is timer control section, can set timing time, such as without clocking requirement, can be not-time.
After F, dipping sample take out from acid, aqueous slkali, first clean in water, then in the sodium carbonate liquor of 0.01mol/L
Middle cleaning, the finally cleaning in water again, it is ensured that cleaning is abundant.In this way terylene geotextile, takes from calcium hydroxide impregnation liquid
After going out, attached terephthalic acids calcium crystal need to be removed, following methods can be adopted：In a device being stirred continuously, 10%（Press
Weight）Sodium nitrilo triacetate in clean 5min, then 3%（By weight）Acetic acid solution in clean, finally cleaned with water.
G, dipping sample and control sample sample should be dried at room temperature for or be dried at a temperature of 60 DEG C, then be drawn accordingly
Stretch the test of performance, size changing rate and mass area ratio.
Claims (10)
1. a kind of geosynthetics acid-proof alkaline test device, it is characterised in that：Including electric-control system, stirring system, outer
Shell（2）And operating room；Operating room is by three Homothermal Proof Box（1）Composition, Homothermal Proof Box（1）Inside it is provided with specimen mounting, the examination
Tryoff（1）It is provided with test case lid（4）, the side of each proof box is provided with interlayer（7）, interlayer（7）With corresponding proof box
Inside connection；
Shell（2）It is provided with the drain pipe being connected with operating room（10）；
Electric-control system includes heater and attemperating unit；
Stirring system includes motor（3）, rotary shaft（9）And stirring vane（8）, motor（3）It is fixed on proof box（1）Upper end tail
Portion, rotary shaft and motor（3）It is connected, rotary shaft（9）It is provided with stirring vane（8）, wherein rotary shaft（9）And stirring vane（8）
Positioned at proof box（1）Interior interlayer（7）In.
2. geosynthetics acid-proof alkaline test device according to claim 1, it is characterised in that：Test case lid
（4）Using front single open-type, case lid is tested（4）With the proof box（1）Body contact position is provided with silicone rubber seal device, proof box
Lid（4）By hydraulic support device（12）Support.
3. geosynthetics acid-proof alkaline test device according to claim 1, it is characterised in that：Proof box（1）
Made using 316L rustless steels, each proof box（1）Inside it is provided with 10 layers of specimen mounting.
4. geosynthetics acid-proof alkaline test device according to claim 3, it is characterised in that：Specimen mounting is vertical
Spacing is 5cm, and specimen mounting is away from proof box（1）The distance of inwall is 1cm.
5. geosynthetics acid-proof alkaline test device according to claim 3, it is characterised in that：Specimen mounting is adopted
316L rustless steels are made, and are provided with equally distributed circular hole.
6. geosynthetics acid-proof alkaline test device according to claim 1, it is characterised in that：Shell（2）Adopt
Made with 304 rustless steels, shell（2）Bottom is provided with movable pulley（6）, shell（2）It is provided with control panel.
7. geosynthetics acid-proof alkaline test device according to claim 6, it is characterised in that：Control panel bag
Include front panel（5）With rearmounted panel（11）；Front panel is located at the positive right side of device, is provided with temperature controller, timer, stirring
Button, stirring timing button and power knob；
Rearmounted panel is provided with mixing speed actuator and earth leakage circuit-breaker；
Temperature controller connects temperature control sensor, and it possesses the warm warning system of independent limit；Temperature controller adopts band overtemperature alarm power-off modular,
With the Intelligence Regulator for adjusting temperature correction function.
8. geosynthetics acid-proof alkaline test device according to claim 1, it is characterised in that：Three constant temperature examinations
Tryoff（1）It is placed side by side.
9. geosynthetics acid-proof alkaline test device according to claim 1, it is characterised in that：Proof box（1）
Heat-insulation layer is provided with, insulation layer thickness is 100mm, and heat-insulation layer adopts ultra-fine heat insulation glass cotton.
10. geosynthetics acid-proof alkaline test device according to claim 1, it is characterised in that：The test
Case（1）Internal height × width x length is 65cm × 100cm × 30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188849.XA CN106680195B (en) | 2017-03-27 | 2017-03-27 | Acid and alkali resistance testing device for geosynthetic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188849.XA CN106680195B (en) | 2017-03-27 | 2017-03-27 | Acid and alkali resistance testing device for geosynthetic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106680195A true CN106680195A (en) | 2017-05-17 |
| CN106680195B CN106680195B (en) | 2023-06-23 |
Family
ID=58826286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710188849.XA Active CN106680195B (en) | 2017-03-27 | 2017-03-27 | Acid and alkali resistance testing device for geosynthetic material |
Country Status (1)
| Country | Link |
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| CN (1) | CN106680195B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362801A (en) * | 2020-11-06 | 2021-02-12 | 四川清和科技有限公司 | Device for rapidly detecting algae removal effect |
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| CN103411874A (en) * | 2013-07-25 | 2013-11-27 | 新疆水利水电科学研究院 | Test box for flowing water eroding cement concrete |
| CN104089869A (en) * | 2014-06-06 | 2014-10-08 | 华南理工大学 | Filter material corrosion simulation experiment device and experiment method |
| CN205404366U (en) * | 2015-12-17 | 2016-07-27 | 华北水利水电大学 | Antiacid alkaline test instrument's automatic box testing arrangement of concrete |
| CN206573459U (en) * | 2017-03-27 | 2017-10-20 | 石家庄铁道大学 | A kind of geosynthetics acid-proof alkaline test device |
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2017
- 2017-03-27 CN CN201710188849.XA patent/CN106680195B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005127753A (en) * | 2003-10-21 | 2005-05-19 | Nippon Ika Kikai Seisakusho:Kk | Thermostatic bath device |
| CN102016541A (en) * | 2008-05-13 | 2011-04-13 | 伯斯有限公司 | Multi-sample conditioning system |
| CN103411874A (en) * | 2013-07-25 | 2013-11-27 | 新疆水利水电科学研究院 | Test box for flowing water eroding cement concrete |
| CN104089869A (en) * | 2014-06-06 | 2014-10-08 | 华南理工大学 | Filter material corrosion simulation experiment device and experiment method |
| CN205404366U (en) * | 2015-12-17 | 2016-07-27 | 华北水利水电大学 | Antiacid alkaline test instrument's automatic box testing arrangement of concrete |
| CN206573459U (en) * | 2017-03-27 | 2017-10-20 | 石家庄铁道大学 | A kind of geosynthetics acid-proof alkaline test device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362801A (en) * | 2020-11-06 | 2021-02-12 | 四川清和科技有限公司 | Device for rapidly detecting algae removal effect |
| CN112362801B (en) * | 2020-11-06 | 2022-01-28 | 四川清和科技有限公司 | Device for rapidly detecting algae removal effect |
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| Publication number | Publication date |
|---|---|
| CN106680195B (en) | 2023-06-23 |
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