CN102998339A - Indoor compaction soil corrosivity evaluation device and using method thereof - Google Patents
Indoor compaction soil corrosivity evaluation device and using method thereof Download PDFInfo
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- CN102998339A CN102998339A CN2012105081966A CN201210508196A CN102998339A CN 102998339 A CN102998339 A CN 102998339A CN 2012105081966 A CN2012105081966 A CN 2012105081966A CN 201210508196 A CN201210508196 A CN 201210508196A CN 102998339 A CN102998339 A CN 102998339A
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Abstract
The invention relates to the field of compaction soil corrosivity testing and evaluation, and in particular relates to an indoor compaction soil corrosivity evaluation device and a using method of the device. The indoor compaction soil corrosivity evaluation device comprises a testing cylinder, a constant-temperature and constant-humidity box, an electric compaction device, two polarization current density testing electrodes, an electrolysis weightless working electrode, an electrolysis weightless auxiliary electrode, a conical flask indicating electrode, a potassium chloride reference electrode, a platinum electrode and two resistivity testing electrodes, wherein the constant-temperature and constant-humidity box is covered on the testing cylinder; the two polarization current density testing electrodes are assembled in the testing cylinder, and leads of the two polarization current density testing electrodes are guided out of the testing cylinder; the two resistivity testing electrodes are assembled in the testing cylinder symmetrically left and right by taking the axis of the testing cylinder as the center, and leads of the two resistivity testing electrodes are guided out of the testing cylinder; the testing cylinder comprises a lower cylinder with a base, an annular middle cylinder and an annular upper cylinder, wherein the annular middle cylinder is detachably and fixedly connected to the upper end of the lower cylinder; the annular upper cylinder is detachably and fixedly connected to the upper end of the annular middle cylinder; and air ventilating holes are formed in the lower end and the side surface of the testing cylinder. The indoor compaction soil corrosivity evaluation device simulates the actual engineering environment of compaction soil, is convenient and rapid to operate, is high in comprehensiveness, and is accurate in corrosivity evaluation.
Description
Technical field
The present invention relates to hit the erosion test evaluation field of real soil, specifically a kind of indoor real native corrosivity evaluating apparatus and using method thereof of hitting.
Background technology
Along with China's Urbanization Construction land used anxiety becomes the problem that becomes increasingly conspicuous; hitting real soil becomes mountain area fundamental construction and digs the important means that ditch is filled out on the mountain; simultaneously all need hit real soil after the laying of various underground utilities is finished and carry out covering protection, the erosion test evaluation of therefore hitting real soil also seems particularly important.
The erosion test evaluation of hitting at present real soil has on-the-spot coupon test and shop experiment.Sheet time length is buried at the scene, difficulty of test is also larger; Shop experiment is the corrosion behavior of research material mostly, the compacting factor that hits real soil is not done specific requirement, does not have similar comparability to the environment of Practical Project; The test position difference also can be brought error to evaluation when hitting simultaneously real native corrosivity evaluation test.
Summary of the invention
The present invention aims to provide a kind of easily and efficiently indoor real native corrosivity evaluating apparatus and using method thereof of hitting.
The present invention is achieved by the following technical solutions: the indoor in fact native corrosivity evaluating apparatus that hits, comprise test barrel, cover is put the climatic chamber of test barrel, the electronic actual load of hitting is put, be assemblied in the test barrel and wire is drawn two polarized current density test electrodes of test barrel, the electrolytic weight loss working electrode, the electrolytic weight loss auxiliary electrode, the conical flask indicator electrode, potassium chloride contrast electrode and platinum electrode, symmetrically centered by the axis of test barrel be assemblied in the test barrel and wire is drawn two resistivity measurement electrodes of test barrel, described test barrel comprises the doffing with base, detachably be fixedly connected on cylinder in the annular of doffing upper end, detachably be fixedly connected on the annular top cylinder of cylinder upper end in the annular, the lower end of described test barrel and side all have bleeder vent.
What detachably being fixedly connected with between cylinder and the annular top cylinder all adopted in detachably being fixedly connected with in doffing and the annular between the cylinder, the annular is the mode that detachably is fixedly connected with well known in the art, as be the clamping cooperation between two, long spiro nail connects or continuous by junction button between two.
Electronicly hit that actual load is put, polarized current density test electrode, electrolytic weight loss working electrode, electrolytic weight loss auxiliary electrode, conical flask indicator electrode, potassium chloride contrast electrode, platinum electrode and resistivity measurement electrode all be devices known in this field.
Described indoor using method of hitting real native corrosivity evaluating apparatus comprises the steps: to fill original soil in the first step, the doffing, is hit the original soil that actual load puts respectively different moisture content and is carried out compaction test by electronic, determines optimum moisture content; Uniform spreading applies the original soil of optimum moisture content in the second step, doffing, and the electronic actual load of hitting is put and hit real formation and hit real soil, doffing hit that real soil is upper places two polarized current density test electrodes, and the polarized current density test electrode is external in the determination of polarization curve instrument; The 3rd step, doffing upper end connect cylinder in the annular, the original soil of the deposited same optimum moisture content of uniform spreading in the cylinder in the annular, simultaneously with two resistivity measurement electrodes symmetrical being embedded in the annular in the cylinder centered by the axis of test barrel, two resistivity measurement electrodes are external in the ac digital electric bridge, the electronic actual load of hitting is put an original soil that hits in the real annular in the cylinder and is formed and hit real soil, the real soil that hits of cylinder is upward placed electrolytic weight loss working electrode and electrolytic weight loss auxiliary electrode in the annular, and electrolytic weight loss working electrode and electrolytic weight loss auxiliary electrode are external on the direct supply; The cylinder upper end connects annular top cylinder in the 4th step, the annular, uniform spreading applies the original soil of same optimum moisture content in the annular top cylinder, be embedded in the annular top cylinder conical flask indicator electrode, potassium chloride contrast electrode and platinum electrode are uniform simultaneously, conical flask indicator electrode, potassium chloride contrast electrode and platinum electrode are external in pH/mV meter, and the electronic actual load of hitting is put the original soil that hits in the real annular top cylinder and formed and hit real soil; The 5th step, climatic chamber cover are put test barrel, temperature and humidity in the control climatic chamber, and the corrosivity of hitting real soil is estimated in the test of hitting the corrosion parameter of real soil.
Compaction test determines that the test method of optimum moisture content is test method known in this field.The electronic actual load of hitting is put and is hit real original soil and form the method for operating of hitting real soil, is this area routine operation method.Ac digital electric bridge, direct supply and pH/mV count existing known instruments.
Described climatic chamber comprises casing, is installed on well heater and humidifier in the casing, is installed on the temperature-humidity sensor in the casing, is located at the outer instrument that can monitor temperature, humidity in the casing of casing.Described climatic chamber also disposes can be according to the control of temperature and humidity well heater of instrument demonstration, the control module of humidifier.Therefore climatic chamber of the present invention does not repeat them here for existing known technology for existing well known device, this control module.
During concrete the use, according to the test environment of Practical Project Environment Design climatic chamber build-in test cylinder.The lower end of described test barrel and side all have bleeder vent, are for the ease of hitting real native residing environment simulation Practical Project environment more true to nature in the test barrel.
The installation site of each electrode can effectively reduce the disturbing effect between each electrode in the above-mentioned using method, so that it is more accurate to hit the corrosivity evaluation of real soil.
The indoor native corrosivity evaluating apparatus of reality that hits of the present invention has been simulated the Practical Project environment that hits real soil, with every disposable measurement of every corrosivity index of hitting real soil, can obtain to hit under the different time corrosion parameters such as polarized current density, resistivity, electrolytic weight loss, pH value and oxidation-reduction potential of real soil, easy to operate, quick, comprehensive height, the corrosivity evaluation is accurate.
Description of drawings
Fig. 1 is the indoor structural representation that hits real native corrosivity evaluating apparatus of the present invention.
Among the figure: 1-climatic chamber, 2-base, 3-doffing, 4-polarized current density test electrode, cylinder in the 5-annular, the electronic actual load of hitting of 6-is put, 7-electrolytic weight loss working electrode, 8-electrolytic weight loss auxiliary electrode, 9-conical flask indicator electrode, 10-potassium chloride contrast electrode, the 11-platinum electrode, 12-resistivity measurement electrode, 13-annular top cylinder, 14-bleeder vent.
Embodiment
The indoor in fact native corrosivity evaluating apparatus that hits, comprise test barrel, cover is put the climatic chamber 1 of test barrel, the electronic actual load of hitting puts 6, be assemblied in the test barrel and wire is drawn two polarized current density test electrodes 4 of test barrel, electrolytic weight loss working electrode 7, electrolytic weight loss auxiliary electrode 8, conical flask indicator electrode 9, potassium chloride contrast electrode 10 and platinum electrode 11, symmetrically centered by the axis of test barrel be assemblied in the test barrel and wire is drawn two resistivity measurement electrodes 12 of test barrel, described test barrel comprises the doffing 3 with base 2, detachably be fixedly connected on cylinder 5 in the annular of doffing 3 upper ends, detachably be fixedly connected on the annular top cylinder 13 of cylinder 5 upper ends in the annular, the lower end of described test barrel and side all have bleeder vent 14.
During implementation, the described mode that detachably is fixedly connected with can adopt clamping cooperation, long spiro nail to connect or junction button.
Described indoor using method of hitting real native corrosivity evaluating apparatus comprises the steps: to fill original soil in the first step, the doffing 3, is put 6 and respectively the original soil of different moisture content is carried out compaction test by the electronic actual load of hitting, and determines optimum moisture content; Second step, doffing 3 interior uniform spreadings apply the original soil of optimum moisture content, the electronic actual load of hitting is put 6 and is hit real formation and hit real soil, the real soil that hits of doffing 3 is upward placed two polarized current density test electrodes 4, and polarized current density test electrode 4 is external in the determination of polarization curve instrument; The 3rd step, doffing 3 upper ends connect cylinder 5 in the annular, cylinder 5 interior uniform spreadings apply the original soil of same optimum moisture content in the annular, simultaneously with two resistivity measurement electrodes 12 symmetrical being embedded in the annular in the cylinder 5 centered by the axis of test barrel, two resistivity measurement electrodes 12 are external in the ac digital electric bridge, the electronic actual load of hitting is put 6 and is hit in the real annular original soils in the cylinder 5 and form and hit real soil, the real soil that hits of cylinder 5 is upward placed electrolytic weight loss working electrode 7 and electrolytic weight loss auxiliary electrode 8 in the annular, and electrolytic weight loss working electrode 7 and electrolytic weight loss auxiliary electrode 8 are external on the direct supply; Cylinder 5 upper ends connect annular top cylinder 13 in the 4th step, the annular, annular top cylinder 13 interior uniform spreadings apply the original soil of same optimum moisture content, simultaneously with conical flask indicator electrode 9, potassium chloride contrast electrode 10 and platinum electrode 11 uniform being embedded in the annular top cylinder 13, conical flask indicator electrode 9, potassium chloride contrast electrode 10 and platinum electrode 11 are external in pH/mV meter, and the electronic actual load of hitting is put 6 and hit original soils in the real annular top cylinder 13 and form and hit real soil; The 5th step, climatic chamber 1 cover are put test barrel, temperature and humidity in the control climatic chamber 1, and the corrosivity of hitting real soil is estimated in the test of hitting the corrosion parameter of real soil.
During concrete the making, the external of polarized current density test electrode 4, electrolytic weight loss working electrode 7, electrolytic weight loss auxiliary electrode 8, conical flask indicator electrode 9, potassium chloride contrast electrode 10, platinum electrode 11 and resistivity measurement electrode 12 can by offer fairlead on test barrel, be connected in each electrode on the corresponding instrument.
Claims (2)
1. indoorly hit real native corrosivity evaluating apparatus, it is characterized in that, comprise test barrel, cover is put the climatic chamber (1) of test barrel, the electronic actual load of hitting is put (6), be assemblied in the test barrel and wire is drawn two polarized current density test electrodes (4) of test barrel, electrolytic weight loss working electrode (7), electrolytic weight loss auxiliary electrode (8), conical flask indicator electrode (9), potassium chloride contrast electrode (10) and platinum electrode (11), symmetrically centered by the axis of test barrel be assemblied in the test barrel and wire is drawn two resistivity measurement electrodes (12) of test barrel, described test barrel comprises with the doffing of base (2) (3), detachably be fixedly connected on cylinder (5) in the annular of doffing (3) upper end, detachably be fixedly connected on the annular top cylinder (13) of cylinder (5) upper end in the annular, the lower end of described test barrel and side all have bleeder vent (14).
2. indoor using method of hitting real native corrosivity evaluating apparatus as claimed in claim 1 is characterized in that, comprises the steps:
The first step, doffing are filled original soil in (3), are put (6) and respectively the original soil of different moisture content are carried out compaction test by the electronic actual load of hitting, and determine optimum moisture content;
Second step, the interior uniform spreading of doffing (3) apply the original soil of optimum moisture content, the electronic actual load of hitting is put (6) and is hit real formation and hit real soil, the real soil that hits of doffing (3) is upward placed two polarized current density test electrodes (4), and polarized current density test electrode (4) is external in the determination of polarization curve instrument; The 3rd step, doffing (3) upper end connects cylinder (5) in the annular, cylinder (5) interior uniform spreading applies the original soil of same optimum moisture content in the annular, simultaneously with two resistivity measurement electrodes (12) symmetrical being embedded in the annular in the cylinder (5) centered by the axis of test barrel, two resistivity measurement electrodes (12) are external in the ac digital electric bridge, the electronic actual load of hitting is put (6) and is hit in the real annular original soil in the cylinder (5) and form and hit real soil, the real soil that hits of cylinder (5) is upward placed electrolytic weight loss working electrode (7) and electrolytic weight loss auxiliary electrode (8) in the annular, and electrolytic weight loss working electrode (7) and electrolytic weight loss auxiliary electrode (8) are external on the direct supply;
Cylinder (5) upper end connects annular top cylinder (13) in the 4th step, the annular, the interior uniform spreading of annular top cylinder (13) applies the original soil of same optimum moisture content, be embedded in the annular top cylinder (13) conical flask indicator electrode (9), potassium chloride contrast electrode (10) and platinum electrode (11) are uniform simultaneously, conical flask indicator electrode (9), potassium chloride contrast electrode (10) and platinum electrode (11) are external in pH/mV meter, and the electronic actual load of hitting is put (6) and hit original soil in the real annular top cylinder (13) and form and hit real soil;
The 5th step, climatic chamber (1) cover are put test barrel, temperature and humidity in the control climatic chamber (1), and the corrosivity of hitting real soil is estimated in the test of hitting the corrosion parameter of real soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508196.6A CN102998339B (en) | 2012-12-03 | 2012-12-03 | Indoor compaction soil corrosivity evaluation device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210508196.6A CN102998339B (en) | 2012-12-03 | 2012-12-03 | Indoor compaction soil corrosivity evaluation device and using method thereof |
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| CN102998339A true CN102998339A (en) | 2013-03-27 |
| CN102998339B CN102998339B (en) | 2014-10-22 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS644144B2 (en) * | 1982-05-28 | 1989-01-24 | Tokyo Gas Co Ltd | |
| US4806850A (en) * | 1985-12-31 | 1989-02-21 | Compagnie De Raffinage Et De Distribution Total France | Method and apparatus for analyzing the corrosive effect of the soil and its environment on a buried metallic structure and their application to the locating of said effect |
| CN2466635Y (en) * | 2001-02-27 | 2001-12-19 | 中国科学院海洋研究所 | High-precision soil corrosion measuring device |
| CN101210871A (en) * | 2006-12-29 | 2008-07-02 | 中国科学院金属研究所 | Soil erosion researching device |
| CN201653876U (en) * | 2010-04-20 | 2010-11-24 | 浙江工业大学 | Indoor soil corrosion simulator |
| CN202916225U (en) * | 2012-12-03 | 2013-05-01 | 太原理工大学 | Device for evaluating corrosivity of indoor compacted soil |
-
2012
- 2012-12-03 CN CN201210508196.6A patent/CN102998339B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS644144B2 (en) * | 1982-05-28 | 1989-01-24 | Tokyo Gas Co Ltd | |
| US4806850A (en) * | 1985-12-31 | 1989-02-21 | Compagnie De Raffinage Et De Distribution Total France | Method and apparatus for analyzing the corrosive effect of the soil and its environment on a buried metallic structure and their application to the locating of said effect |
| CN2466635Y (en) * | 2001-02-27 | 2001-12-19 | 中国科学院海洋研究所 | High-precision soil corrosion measuring device |
| CN101210871A (en) * | 2006-12-29 | 2008-07-02 | 中国科学院金属研究所 | Soil erosion researching device |
| CN201653876U (en) * | 2010-04-20 | 2010-11-24 | 浙江工业大学 | Indoor soil corrosion simulator |
| CN202916225U (en) * | 2012-12-03 | 2013-05-01 | 太原理工大学 | Device for evaluating corrosivity of indoor compacted soil |
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| CN102998339B (en) | 2014-10-22 |
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Granted publication date: 20141022 Termination date: 20181203 |