CN108827836A - A kind of test method of the permeance property of deicing salt/deicing liquid - Google Patents
A kind of test method of the permeance property of deicing salt/deicing liquid Download PDFInfo
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- CN108827836A CN108827836A CN201810381039.0A CN201810381039A CN108827836A CN 108827836 A CN108827836 A CN 108827836A CN 201810381039 A CN201810381039 A CN 201810381039A CN 108827836 A CN108827836 A CN 108827836A
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Abstract
The invention discloses a kind of test methods of the permeance property of deicing salt/deicing liquid, successively include the following steps：A：Make ice-melt sample；B：Ice-melt specimen surface in experimental rig is modified；C：Ice-melt sample, deicing salt/deicing fluid samples of rated capacity and coloring agent sample are put into the low-temperature test chamber for requiring set temperature according to permeance property test temperature；D：Permeance property test is carried out to every group of deicing salt/deicing fluid samples, reads and record test data, until off-test；E：Permeance property percentage and standard error are carried out according to the test data read in step DS.EIt calculates.The present invention can test deicing salt/deicing liquid permeance property, accurate simulation deicing salt/active state of deicing liquid during practical ice-melt is avenged, and then deicing salt/deicing liquid ice-melt snow ability is accurately evaluated, support is provided for deicing salt/deicing liquid selection under different condition.
Description
Technical field
The present invention relates to road, bridge and airport deicing salt/deicing liquid detection fields more particularly to a kind of snow melt
The test method of agent/deicing liquid permeance property.
Background technique
Winter, sleet and snow ice weather have seriously affected the operational stability and safety of vehicle, and traffic accident rate is high-incidence, right
People life property safety brings about great losses, and reduces the conevying efficiency of road, how to improve the traffic safety of ice-snow road, keep away
Exempt from or reduce traffic accident, becomes major issue urgently to be resolved.There is the special of sleet and snow ice weather for winter
Period, both at home and abroad using deicing salt/deicing liquid as a kind of simple and effective deicing measure, in the city road for guaranteeing ice and snow day
The traffic such as road, highway or airfield runway are fluent and public safety aspect plays the role of huge, deicing salt/deicing liquid energy
Enough traffic pressure is enable to alleviate, reduces traffic accident, facilitate the work and life of people.
However, anything all has dual character, it is a large amount of many using equally also having caused in relation to deicing salt/deicing liquid
Problem causes the attention of researcher and social relevant government department, such as so-called " environment-friendly type " deicing salt/deicing at present
There is no stringent classification standard and detailed test evaluation indexs for liquid.A kind of superiority and inferiority of deicing salt/deicing liquid is evaluated, mainly
Comprehensively consider from Thaw performance, corrosivity and content of beary metal etc. of ice-melt snow agent because of usually various aspects.It is international and domestic about
The standard of ice-melt snow agent is simultaneously few, and foreign countries mainly have《The Pacific Northwest snow removing association criterion》, the country has《Road deicing snow melt
Agent》(GB/T23851-2009) and region standard includes Liaoning Province's deicing salt quality and uses technical regulation, Hebei province high
Fast highway deicing salt technical standard, Beijing's provincial standard (DB11/T161-2012).But it is directed to deicing salt/deicing liquid ice-melt
Snow merit rating only has a kind of index, and according to international anti-ice material laboratory (AMIL), researches show that deicing salt states to ice and snow
There is certain influence in thawing effect, different ice-melt active states is proposed, such as ice-melt efficiency, duration and osmotic efficiency
Deng.But the differences such as deicing salt/deicing liquid status, ingredient and type evaluate its ice-melt snow ability, tool only with a kind of Testing index
There is certain limitation, causes also to lack corresponding characteristic evidences to the selection of deicing salt/deicing liquid.
In conclusion at present there is an urgent need to the evaluation index for proposing different from ice-melt rate solve it is above-mentioned to deicing salt/remove
Existing defects in the selection of ice liquid, to select different deicing salt/deicing liquids under corresponding condition, and then accurately evaluate ice-melt
Snow ability.
Summary of the invention
The object of the present invention is to provide a kind of test method of the permeance property of deicing salt/deicing liquid, can to deicing salt/
The permeance property of deicing liquid is tested, accurate simulation deicing salt/active state of deicing liquid during practical ice-melt is avenged, into
And deicing salt/deicing liquid ice-melt snow ability is accurately evaluated, branch is provided for deicing salt/deicing liquid selection under different condition
It holds.
The present invention adopts the following technical solutions：
A kind of test method of the permeance property of deicing salt/deicing liquid, successively includes the following steps：
A：Make ice-melt sample；
B：Ice-melt specimen surface in experimental rig is modified, keep each ice-melt specimen surface it is smooth with it is equal
It is even；
C：Ice-melt sample, deicing salt/deicing fluid samples of rated capacity and coloring agent sample are put into and are tried according to permeance property
It tests in the low-temperature test chamber of temperature requirement set temperature；
D：Permeance property test is carried out to every group of deicing salt/deicing fluid samples, reads and record test data, until test
Terminate, during entire permeance property test, keeps the temperature requirement of actual ambient temperature Pass Test when test；To melting
When avenging agent/deicing liquid progress permeance property test, n times test is repeated to every group of deicing salt/deicing fluid samples, and n times are tried
In testing, at least the difference of the average value of N-1 test result and this n times test result is not more than ± the 5% of average value, and counts
The average value with the difference of the average value of n times test result no more than ± 5% all test results of average value is calculated as most
Deicing salt/deicing liquid penetration depth average value V in the test of determining permeance property eventuallyL；
E：Permeance property percentage W is carried out according to the test data read in step DLIt calculates, calculates with standard error S.E
Formula is as follows：
Wherein, WLFor the deicing salt/deicing liquid and anhydrous calcium chloride under same temperature and same test data read access time
Permeance property percentage, subscript L refer to penetration depth, LXXXFor permeability under same temperature and same test data read access time
Can test used by deicing salt/deicing liquid penetration depth, subscript XXX refer to permeance property test used by deicing salt/
The type of deicing liquid,For the penetration depth of anhydrous calcium chloride under same temperature and same test data read access time,
CaCl2For anhydrous calcium chloride；The unit of penetration depth is mm；S.E is standard error, VLFor permeability finally determining in step D
Deicing salt/deicing liquid penetration depth average value in capable of testing, L1, L2... ..., LKDeicing salt used by respectively testing/remove
Penetration depth of the ice liquid in the 1st time, the 2nd time ... ..., kth test is as a result, K is flat with n times test result in step D
Total degree of the difference of mean value no more than ± 5% all test results of average value.
In the step A：Ice-melt sample is made using experimental rig；Experimental rig includes transparent base, transparent base
Upper surface on successively offer several vertical penetration testing holes, the internal diameter of several penetration testing holes from left to right
And depth is all the same, is provided with scale on the front panel of the transparent base of penetration testing hole side；The front panel of transparent base
Lower part is provided with level meter, and the lower end surface of transparent base is additionally provided with Level tune supporting leg.
In the step A：When using experimental rig production ice-melt sample, first to penetration testing hole in experimental rig
Impurity inside hole is cleaned；Examination is added in pure water or ionizing water by the pure water or ionizing water for then measuring 10mL-20mL
To initial marker locations in the penetration testing hole of experiment device, while the air in pure water or ionizing water is removed, it finally will examination
Experiment device, which is put into -15 DEG C of low-temperature test chamber, keeps 12h to be made ice-melt sample, and h indicates hour, experimental rig is put into -
When in 15 DEG C of low-temperature test chamber, experimental rig holding is horizontal and does not contact with low-temperature test chamber tank wall.
In the step B：In the manufacturing process of ice-melt sample, after experimental rig to be put into -15 DEG C of low-temperature test chamber
It by 5h-6h, gradually freezes inside penetration testing hole, if the ice-melt sample end in penetration testing hole is higher by penetration testing
Apertured top surface then removes the ice-melt sample end for being higher by penetration testing apertured top surface using tool, then by treated
Ice-melt sample, which is placed again into -15 DEG C of low-temperature test chamber, to be freezed；If the ice-melt sample end after freezing again is still higher by
Penetration testing apertured top surface then continues the removing to the ice-melt sample end for being higher by penetration testing apertured top surface, so
Freeze again afterwards；Aforesaid operations are repeated, until ice-melt sample end is flushed with penetration testing apertured top surface, and ice-melt sample table
Face is smooth.
In the step C：According to permeance property test temperature requirement setting low-temperature test chamber temperature, and allow according to
Permeance property test temperature requires the low-temperature test chamber after set temperature to be in temperature constant state operation 2h to 3h, to guarantee internal temperature
Degree is uniform；Then ice-melt sample, deicing salt/deicing fluid samples and coloring agent sample are put into according to permeance property test temperature again
It is required that in the low-temperature test chamber of set temperature；Start permeance property test before 1.5h, by step B in -15 DEG C of under the conditions of systems
The experimental rig for making ice-melt sample is put into the temperature requirement set temperature tested according to permeance property and is in temperature constant state
In low-temperature test chamber；Coloring agent sample, is put into the temperature tested according to permeance property by the 1h before starting permeance property and testing
It is required that set temperature and in temperature constant state low-temperature test chamber in；The 0.5h before starting permeance property and testing, by deicing salt/remove
Ice fluid samples are put into according in the temperature requirement set temperature of permeance property test and the low-temperature test chamber in temperature constant state.
In the step D：Using one time point of permeance property testing inspection or several different time points deicing salts/
The penetration depth of deicing liquid；When carrying out the reading of several different time points deicing salt/deicing liquid penetration depth test datas,
When test temperature is at -5 DEG C, test data read access time is 5min, 10min, 25min and 45min；Remaining test
Under the conditions of temperature, test data read access time is 5min, 10min, 25min, 45min and 60min, test data
Read access time is accurate to 0.5min；Test process shooting is carried out using camera during entire permeance property test.
In the step D：When being detected to deicing salt/deicing liquid permeance property, if the deicing salt tested/
Solid deicing salt and liquid deicing liquid are existed simultaneously in deicing fluid samples, is tested first with solid deicing salt, are melted in solid
The liquid deicing liquid of recycling after the test of snow agent is tested.
When deicing salt/deicing liquid is solid deicing salt, ice-melt sample end is successively added in coloring agent and solid deicing salt
Face, the total weight of coloring agent dosage are the 1% of deicing salt dosage total weight, and specific step is as follows：
According to the temperature requirement set temperature of permeance property test and in the low temperature of temperature constant state first from step C
Coloring agent is taken out in chamber, ice-melt sample end face is first added in the coloring agent for weighing setting quality, then weighs setting quality again
Solid deicing salt be added ice-melt sample end face；
When deicing salt/deicing liquid is liquid deicing liquid, ice-melt is added after liquid deicing liquid and coloring agent are blended
Sample end face, the total weight of coloring agent dosage are the 1% of deicing liquid dosage total weight, and specific step is as follows：
According to the temperature requirement set temperature of permeance property test and in the low temperature of temperature constant state first from step C
Liquid deicing liquid and coloring agent are taken out in chamber；Then liquid deicing liquid is taken to be put into beaker；Recycle precision electronic balance
The coloring agent for measuring setting quality is added in beaker, stirs evenly mixing, until the powder crystallization body in beaker melts to form mixed liquor
Body；Finally, extracting mixing liquid from beaker using microsyringe is directly added into ice-melt sample end face.
In the step D：The whole process that ice-melt sample end face is added in deicing salt/deicing fluid samples is operated less than 30
Second.
In the step D：5 tests are repeated to every group of deicing salt/deicing fluid samples, if in 5 tests every time
± 5% of difference no more than average value of the average value of test result and this 5 test results, then with this 5 test results
Average value as deicing salt/deicing liquid penetration depth average value V in finally determining permeance property testL；If 5 tests
In there is only ± 5% that the difference of the average value of 1 test result and this 5 test results is greater than average value, then give up this time
Test result, taking the average value of remaining 4 test results is permeance property test result VL；If 5 times test in exist twice with
The difference of the average value of upper test result and this 5 test results is greater than ± 5%, then this 5 times tests are all invalid, re-starts
5 tests, until at least the difference of the average value of 4 test results and this 5 test results is no more than flat in 5 tests
± the 5% of mean value.
A kind of deicing salt/deicing liquid permeance property test method proposed by the invention, compensates for prior art specification
In deficiency, overcome the technological deficiency of common deicing salt test method, energy accurate simulation deicing salt/deicing liquid of the present invention is in reality
Active state during border ice-melt snow, while the permeance property percentage and standard error proposed calculates the two and is surveyed by test
The parameter obtained is tried, quantizating index is provided for ice and snow osmosis performance, a variety of deicing salt/deicing liquids can be distinguished with good area
Performance superiority and inferiority between person is preferably of great significance to different type deicing salt/deicing liquid product.
Detailed description of the invention
Fig. 1 is flow diagram of the invention；
The structural schematic diagram of experimental rig in the present invention of the position Fig. 2.
Specific embodiment
The present invention is made with detailed description below in conjunction with drawings and examples：
As depicted in figs. 1 and 2, the test method of the permeance property of deicing salt/deicing liquid of the present invention successively includes
Following steps：
Step A：Make ice-melt sample；
In step A, ice-melt sample is made using experimental rig；Experimental rig in the present invention, including transparent base 1, thoroughly
Several vertical penetration testing holes 2, several penetration testing holes are successively offered on the upper surface of bright pedestal 1 from left to right
The internal diameter and depth in hole 2 are all the same, are provided with scale 3 on the front panel of the transparent base 1 of 2 side of penetration testing hole；It is transparent
The front panel lower part of pedestal 1 is provided with level meter 4, and the lower end surface of transparent base 1 is additionally provided with Level tune supporting leg 5.
In the present embodiment, when using experimental rig production ice-melt sample, first to penetration testing hole in experimental rig
Internal impurity is cleaned；Test is added in pure water or ionizing water by the pure water or ionizing water for then measuring 10mL-20mL
To initial marker locations in the penetration testing hole of device, while the air in pure water or ionizing water is removed, it finally will test
Device, which is put into -15 DEG C of low-temperature test chamber, keeps 12h that ice-melt sample is made, and h indicates hour.
When experimental rig is put into -15 DEG C of low-temperature test chamber, experimental rig keep it is horizontal and not with low-temperature test
The contact of case tank wall；
Step B：Ice-melt specimen surface in experimental rig is modified, keep the smooth of each ice-melt specimen surface with
Uniformly；
In the manufacturing process of ice-melt sample, experimental rig is put into after -15 DEG C of low-temperature test chamber by 5h-6h, infiltration
It gradually freezes inside test hole, if the ice-melt sample end in penetration testing hole is higher by penetration testing apertured top surface,
The ice-melt sample end for being higher by penetration testing apertured top surface is removed using tool, then ice-melt sample is put again by treated
Enter and is freezed in -15 DEG C of low-temperature test chamber；If the ice-melt sample end after freezing again is still higher by penetration testing hole
Surface then continues then to freeze the removing for the ice-melt sample end for being higher by penetration testing apertured top surface again；It repeats
Aforesaid operations, until ice-melt sample end is flushed with penetration testing apertured top surface, and ice-melt specimen surface is smooth.
Step C：Ice-melt sample, deicing salt/deicing fluid samples of rated capacity and coloring agent sample are put into according to permeability
Energy test temperature requires in the low-temperature test chamber of set temperature；
According to the temperature of the temperature requirement setting low-temperature test chamber of permeance property test, and allows and test temperature according to permeance property
Degree requires the low-temperature test chamber after set temperature to be in temperature constant state operation 2h to 3h, to guarantee that internal temperature is uniform；Then again
Ice-melt sample, deicing salt/deicing fluid samples and coloring agent sample are put into and require set temperature according to permeance property test temperature
Low-temperature test chamber in；
In the present embodiment, the 1.5h before starting permeance property and testing will make ice-melt examination under the conditions of -15 DEG C in step B
The experimental rig of sample is put into according to the temperature requirement set temperature of permeance property test and in the low-temperature test of temperature constant state
In case, to reduce temperature error, test accuracy is improved；
Coloring agent sample uses rhodamine B, molecular formula C28H31CIN2O3, crystallization or purple toner for green gloss
End.Weigh suitable rhodamine B start permeance property test before 1h be put into according to permeance property test temperature requirement set
Determine temperature and is in the low-temperature test chamber of temperature constant state.
By deicing salt/deicing fluid samples, 0.5h is put into the temperature tested according to permeance property before starting permeance property and testing
Degree requires set temperature and is in the low-temperature test chamber of temperature constant state, to improve test data precision.
Step D：Permeance property test is carried out to every group of deicing salt/deicing fluid samples, reads and record test data, until
Off-test keeps the temperature requirement of actual ambient temperature Pass Test when test during entire permeance property test.
In the present invention, permeance property test predominantly detects a time point or several different time points deicing salt/deicing
The penetration depth of liquid.When carrying out the reading of several different time points deicing salt/deicing liquid penetration depth test datas, work as examination
Temperature is tested at one 5 DEG C, test data read access time is 5min, 10min, 25min and 45min；Remaining test temperature
Under the conditions of degree, test data read access time is 5min, 10min, 25min, 45min and 60min, and test data is read
The time is taken to be accurate to 0.5min.
Deicing salt/deicing liquid penetration depth reading L is accurate to 0.1mm；Using height during entire permeance property test
Resolution camera carries out test process shooting, analyzes the melting process of ice-melt sample；
When detecting deicing salt/deicing liquid permeance property, need for deicing salt/deicing liquid and coloring agent to be added
Ice-melt sample end face.Since deicing salt/deicing liquid sample state is different, there are two kinds of feelings of solid deicing salt and liquid deicing liquid
Condition.If solid deicing salt and liquid deicing liquid are existed simultaneously in the deicing salt tested/deicing fluid samples, to avoid time error
Measuring accuracy is influenced, is tested first with solid deicing salt, in the liquid deicing of recycling after the test of solid deicing salt
Liquid is tested.In the present invention, the operating method point of ice-melt sample end face is added in solid deicing salt, liquid deicing liquid and coloring agent
It is not as follows：
When deicing salt/deicing liquid is solid deicing salt, ice-melt sample end is successively added in coloring agent and solid deicing salt
Face, the total weight of coloring agent dosage are the 1% of deicing salt dosage total weight, and specific step is as follows：
According to the temperature requirement set temperature of permeance property test and in the low temperature of temperature constant state first from step C
Coloring agent, that is, rhodamine B is taken out in chamber, ice-melt sample end face is first added in the coloring agent for weighing setting quality, then weighs again
Ice-melt sample end face is added in the solid deicing salt for setting quality.
When deicing salt/deicing liquid is liquid deicing liquid, ice-melt is added after liquid deicing liquid and coloring agent are blended
Sample end face, the total weight of coloring agent dosage are the 1% of deicing liquid dosage total weight, and specific step is as follows：
According to the temperature requirement set temperature of permeance property test and in the low temperature of temperature constant state first from step C
Liquid deicing liquid and coloring agent are taken out in chamber；Then 20mL liquid deicing liquid is taken to be put into 50mL beaker；It recycles accurate
The coloring agent that electronic balance measures setting quality is added in beaker, stirs evenly mixing, until the powder crystallization body in beaker melts shape
At mixing liquid；Finally, the mixing liquid for extracting 25 μ L from beaker using microsyringe is directly added into ice-melt sample end face.
It is dissolved each other due to liquid deicing salt/deicing liquid and rhodamine B and needs certain time, therefore mixed in advance in the present invention with sample, to improve
Stringency of test.
In the present invention, the whole process that ice-melt sample end face is added in deicing salt/deicing fluid samples was operated less than 30 seconds.
In the present invention, when carrying out permeance property test to deicing salt/deicing liquid, to each deicing salt/deicing fluid samples
Repeat n times test, and in n times test, at least the difference of the average value of N-1 test result and this n times test result
No more than ± the 5% of average value, and calculate ± 5% institute for being not more than average value with the difference of the average value of n times test result
There is the average value of test result as deicing salt/deicing liquid penetration depth average value in finally determining permeance property test
VL。
In the present embodiment, to improve test efficiency, 5 tests are repeated to each deicing salt/deicing fluid samples, if 5
± 5% of difference no more than average value of the average value of each test result and this 5 test results in secondary test, then with this
The average value of 5 test results is as deicing salt/deicing liquid penetration depth average value in finally determining permeance property test
VL；If in 5 tests there is only the difference of the average value of 1 test result and this 5 test results be greater than average value ±
5%, then give up the secondary test result, taking the average value of remaining 4 test results is permeance property test result VL；If 5 examinations
The difference for testing the middle average value that there is test result more than twice and this 5 test results is greater than ± 5%, then this 5 times tests are complete
Portion is invalid, re-starts 5 tests, until in 5 tests, the average value of at least 4 times test results and this 5 test results
Difference be not more than average value ± 5%.
Step E：Permeance property percentage W is carried out according to the test data read in step DLIt is calculated with standard error S.E,
Calculation formula is as follows：
In the present invention, using CaCl2(anhydrous calcium chloride) conduct, which refers to, controls target, in formula 1, WLFor same temperature and together
Deicing salt/deicing liquid and anhydrous calcium chloride permeance property percentage under one test data read access time, subscript L refer to that infiltration is deep
Degree, LXXXThe infiltration of deicing salt/deicing liquid used by being tested for permeance property under same temperature and same test data read access time
Saturating depth, subscript XXX refer to that permeance property tests the type of used deicing salt/deicing liquid,For same temperature and
The penetration depth of anhydrous calcium chloride, CaCl under same test data read access time2For anhydrous calcium chloride；The unit of penetration depth is
mm；
In formula 2, S.E is standard error, VLFor deicing salt/deicing liquid in permeance property test finally determining in step D
Penetration depth average value, L1, L2... ..., LKDeicing salt/deicing liquid used by respectively testing is at the 1st time, the 2nd
It is secondary ... ..., kth test in penetration depth as a result, penetration depth unit be mm, K be step D in n times test result
Average value difference no more than average value ± 5% all test results total degree.
Embodiment 1：
In the present embodiment, 3 kinds of deicing salts/deicing fluid samples, respectively HR compound snow-melting agent (solid-state, master are chosen in test
Wanting ingredient is CaCl2, NaCl, acetate and additive), KHF-1A (acetate deicing liquid, liquid, main component be sodium acetate,
Ethylene glycol and additive) and NW-056 (acetate deicing liquid, liquid, main component are potassium acetate and additive), and with anhydrous
Calcium chloride (solid-state, main component CaCl2) as with reference to control target, 3 kinds of deicing salts/deicing fluid samples are seeped respectively
Saturating performance test, sets test temperature as -10 DEG C, test data read access time 45min；Meanwhile to carry out permeance property examination
Accuracy comparison is tested, ice melting capability test (GB/T23851- is carried out to 3 kinds of deicing salts/deicing fluid samples simultaneously in the present embodiment
2009), ice melting capability test period is 30min.
1. distinguishing according to ice melting capability test in standard GB/T23851-2009 3 kinds of deicing salts and anhydrous calcium chloride product
It is tested, ice melting capability test belongs to this field routine techniques, its test procedure that details are not described herein, test result is shown in Table 1.
2. carrying out permeance property test to 3 kinds of deicing salts/deicing fluid samples respectively；
Step A：The impurity in experimental rig inside penetration testing hole is cleaned first；Then 10mL- is measured
Pure water or ionizing water are added in the penetration testing hole of experimental rig to initial markers position the pure water or ionizing water of 20mL
It sets, while removing the air in pure water or ionizing water, finally experimental rig is put into -15 DEG C of low-temperature test chamber and is kept
Ice-melt sample is made in 12h.
Step B：Ice-melt specimen surface in experimental rig is modified, keep the smooth of each ice-melt specimen surface with
Uniformly；
Step C：The temperature of low-temperature test chamber is set as -10 DEG C according to the temperature requirement that permeance property is tested, and allowing is -10
DEG C low-temperature test chamber be in temperature constant state operation 2h to 3h, to guarantee that internal temperature is uniform；Then again by ice-melt sample, snow melt
Agent/deicing fluid samples and coloring agent sample are added in the low-temperature test chamber in -10 DEG C of temperature constant states；Starting permeance property examination
Preceding 1.5h is tested, the experimental rig for making ice-melt sample in step B under the conditions of -15 DEG C is put into and is in -10 DEG C of temperature constant states
In low-temperature test chamber；The 1h before starting permeance property and testing will weigh rhodamine B and be put into the low temperature in -10 DEG C of temperature constant states
In chamber；The 0.5h before starting permeance property and testing, 3 kinds of deicing salts/deicing fluid samples and anhydrous calcium chloride sample are put into
In low-temperature test chamber in -10 DEG C of temperature constant states；
Step D：Under -10 DEG C of actual ambient temperature, respectively to 3 kinds of deicing salts/deicing fluid samples and anhydrous calcium chloride
Sample carries out permeance property test；Test data, that is, penetration depth is read in 45min.
In the present embodiment, since anhydrous calcium chloride sample and HR compound snow-melting agent are solid, KHF-1A and NW-056 are
Liquid, test operation is that time error is avoided to influence measuring accuracy in the process, first compound to anhydrous calcium chloride sample and HR to melt
Snow agent is tested, and is tested again KHF-1A and NW-056 after the test, every kind of deicing salt/deicing liquid specimen test weight
It carries out 5 times again.
Step E：Permeance property percentage W is carried out according to the test data read in step DLIt is calculated with standard error S.E,
Calculation formula is as follows：
WLFor the deicing salt/deicing liquid and anhydrous calcium chloride permeability under same temperature and same test data read access time
Energy percentage, LXXXDeicing salt/deicing used by being tested for permeance property under same temperature and same test data read access time
The penetration depth of liquid,For the penetration depth of anhydrous calcium chloride under same temperature and same test data read access time；S.E
For standard error, VLFor deicing salt/deicing liquid penetration depth average value in permeance property test finally determining in step D,
L1, L2... ..., LKInfiltration of the deicing salt/deicing liquid used by respectively testing in the 1st time, the 2nd time ... ..., kth test
Saturating depth results.
The results are shown in Table 1 for ice melting capability test and permeance property test：
Table 1
As can be seen from Table 1, according to GB/T23851-2009 ice melting capability test method, 3 kinds of deicing salts and anhydrous are utilized
The ice-melt effect analysis of calcium chloride product, CaCl2Ice-melt effect it is best, the agent of HR compound snow-melting and NW-056 take second place, KHF-
1A is worst, and the ice melting capability data difference of NW-056 and KHF-1A is smaller；And disclosed permeance property examination through the invention
Proved recipe method can debate the performance superiority and inferiority between 4 then with good area, can not only effective evaluation its ice melting capability, to ice and snow
Osmosis effect is verified, and every kind of deicing salt/deicing liquid test data standard error is in effective range.
Although above-mentioned, invention has been described, and but the invention is not limited in above-mentioned embodiment, on
The specific embodiment stated is only schematical, be not it is restrictive, those skilled in the art are of the invention
Under enlightenment, without breaking away from the scope protected by the purposes and claims of the present invention, many forms can also be made, these
Within all belonging to the scope of protection of the present invention.
Claims (10)
1. a kind of test method of the permeance property of deicing salt/deicing liquid, it is characterised in that：Successively include the following steps：
A：Make ice-melt sample；
B：Ice-melt specimen surface in experimental rig is modified, keep each ice-melt specimen surface it is smooth with it is uniform；
C：Ice-melt sample, deicing salt/deicing fluid samples of rated capacity and coloring agent sample are put into and test temperature according to permeance property
Degree requires in the low-temperature test chamber of set temperature；
D：Permeance property test is carried out to every group of deicing salt/deicing fluid samples, reads and record test data, until test knot
Beam keeps the temperature requirement of actual ambient temperature Pass Test when test during entire permeance property test；To snow melt
When agent/deicing liquid carries out permeance property test, n times test is repeated to every group of deicing salt/deicing fluid samples, and n times are tested
In, at least the difference of the average value of N-1 test result and this n times test result is not more than ± the 5% of average value, and calculates
It is used as finally with the difference of the average value of n times test result no more than the average value of ± 5% all test results of average value
Deicing salt/deicing liquid penetration depth average value V in determining permeance property testL；
E：Permeance property percentage W is carried out according to the test data read in step DLIt is calculated with standard error S.E, calculation formula
It is as follows：
Wherein, WLFor the deicing salt/deicing liquid and anhydrous calcium chloride permeability under same temperature and same test data read access time
Energy percentage, subscript L refer to penetration depth, LXXXIt is tested for permeance property under same temperature and same test data read access time
The penetration depth of used deicing salt/deicing liquid, subscript XXX refer to that permeance property tests used deicing salt/deicing liquid
Type,For the penetration depth of anhydrous calcium chloride under same temperature and same test data read access time, CaCl2For nothing
Water calcium chloride；The unit of penetration depth is mm；S.E is standard error, VLFor in permeance property test finally determining in step D
Deicing salt/deicing liquid penetration depth average value, L1, L2... ..., LKDeicing salt/deicing liquid used by respectively testing is the
1 time, the 2nd time ... ..., the penetration depth in kth test is as a result, K is difference with the average value of n times test result in step D
Total degree of the value no more than ± 5% all test results of average value.
2. the test method of the permeance property of deicing salt/deicing liquid according to claim 1, which is characterized in that described
In step A：Ice-melt sample is made using experimental rig；Experimental rig includes transparent base, from a left side on the upper surface of transparent base
Several vertical penetration testing holes are successively offered to the right side, the internal diameter and depth of several penetration testing holes are all the same,
Scale is provided on the front panel of the transparent base of penetration testing hole side；The front panel lower part of transparent base is provided with level
Instrument, the lower end surface of transparent base are additionally provided with Level tune supporting leg.
3. the test method of the permeance property of deicing salt/deicing liquid according to claim 2, which is characterized in that described
In step A：Using experimental rig production ice-melt sample when, first to the impurity in experimental rig inside penetration testing hole into
Row cleaning；Then the pure water or ionizing water for measuring 10mL-20mL survey the infiltration that experimental rig is added in pure water or ionizing water
To initial marker locations in prospect hole hole, while the air in pure water or ionizing water is removed, experimental rig is finally put into -15 DEG C
Low-temperature test chamber in keep 12h to be made ice-melt sample, h indicates hour, and experimental rig is being put into -15 DEG C of low-temperature test chamber
When interior, experimental rig holding is horizontal and does not contact with low-temperature test chamber tank wall.
4. the test method of the permeance property of deicing salt/deicing liquid according to claim 3, which is characterized in that described
In step B：In the manufacturing process of ice-melt sample, experimental rig is put into after -15 DEG C of low-temperature test chamber by 5h-6h, infiltration
It gradually freezes inside test hole, if the ice-melt sample end in penetration testing hole is higher by penetration testing apertured top surface,
The ice-melt sample end for being higher by penetration testing apertured top surface is removed using tool, then ice-melt sample is put again by treated
Enter and is freezed in -15 DEG C of low-temperature test chamber；If the ice-melt sample end after freezing again is still higher by penetration testing hole
Surface then continues then to freeze the removing for the ice-melt sample end for being higher by penetration testing apertured top surface again；It repeats
Aforesaid operations, until ice-melt sample end is flushed with penetration testing apertured top surface, and ice-melt specimen surface is smooth.
5. the test method of the permeance property of deicing salt/deicing liquid according to claim 4, which is characterized in that described
In step C：According to the temperature of the temperature requirement setting low-temperature test chamber of permeance property test, and allows and test temperature according to permeance property
Degree requires the low-temperature test chamber after set temperature to be in temperature constant state operation 2h to 3h, to guarantee that internal temperature is uniform；Then again
Ice-melt sample, deicing salt/deicing fluid samples and coloring agent sample are put into and require set temperature according to permeance property test temperature
Low-temperature test chamber in；The 1.5h before starting permeance property and testing will make ice-melt sample under the conditions of -15 DEG C in step B
Experimental rig is put into according in the temperature requirement set temperature of permeance property test and the low-temperature test chamber in temperature constant state；
Start permeance property test before 1h, by coloring agent sample be put into according to permeance property test temperature requirement set temperature and
In low-temperature test chamber in temperature constant state；The 0.5h before starting permeance property and testing, deicing salt/deicing fluid samples are put into
According in the temperature requirement set temperature of permeance property test and the low-temperature test chamber in temperature constant state.
6. the test method of the permeance property of deicing salt/deicing liquid according to claim 5, which is characterized in that described
In step D：It is deep using one time point of permeance property testing inspection or several different time points deicing salt/deicing liquid infiltrations
Degree；When carrying out the reading of several different time points deicing salt/deicing liquid penetration depth test datas, when test temperature is -5
DEG C when, test data read access time be 5min, 10min, 25min and 45min；Under the conditions of remaining test temperature, examination
Testing data read time is 5min, 10min, 25min, 45min and 60min, and test data read access time is accurate
To 0.5min；Test process shooting is carried out using camera during entire permeance property test.
7. the test method of the permeance property of deicing salt/deicing liquid according to claim 5, which is characterized in that described
In step D：When being detected to deicing salt/deicing liquid permeance property, if same in the deicing salt tested/deicing fluid samples
When there are solid deicing salts and liquid deicing liquid, tested first with solid deicing salt, in the off-test of solid deicing salt
Liquid deicing liquid is recycled to be tested afterwards.
8. the test method of the permeance property of deicing salt/deicing liquid according to claim 7, it is characterised in that：Work as snow melt
When agent/deicing liquid is solid deicing salt, ice-melt sample end face is successively added in coloring agent and solid deicing salt, coloring agent dosage
Total weight is the 1% of deicing salt dosage total weight, and specific step is as follows：
According to the temperature requirement set temperature of permeance property test and in the low-temperature test of temperature constant state first from step C
Coloring agent is taken out in case, ice-melt sample end face is first added in the coloring agent for weighing setting quality, then weighs consolidating for setting quality again
Ice-melt sample end face is added in body deicing salt；
When deicing salt/deicing liquid is liquid deicing liquid, ice-melt sample is added after liquid deicing liquid and coloring agent are blended
End face, the total weight of coloring agent dosage are the 1% of deicing liquid dosage total weight, and specific step is as follows：
According to the temperature requirement set temperature of permeance property test and in the low-temperature test of temperature constant state first from step C
Liquid deicing liquid and coloring agent are taken out in case；Then liquid deicing liquid is taken to be put into beaker；Precision electronic balance is recycled to measure
The coloring agent for setting quality is added in beaker, stirs evenly mixing, until the powder crystallization body in beaker melts to form mixing liquid；Most
Afterwards, mixing liquid is extracted from beaker using microsyringe and is directly added into ice-melt sample end face.
9. the test method of the permeance property of deicing salt/deicing liquid according to claim 1, which is characterized in that described
In step D：The whole process that ice-melt sample end face is added in deicing salt/deicing fluid samples was operated less than 30 seconds.
10. the test method of the permeance property of deicing salt/deicing liquid according to claim 1, which is characterized in that described
In step D：To every group of deicing salt/deicing fluid samples repeat 5 times test, if 5 times test in every time test result with this 5 times
± 5% of the difference of the average value of test result no more than average value, then using the average value of this 5 test results as finally
Deicing salt/deicing liquid penetration depth average value V in determining permeance property testL；If in 5 tests, there is only 1 tests
As a result it is greater than ± the 5% of average value with the difference of the average value of this 5 test results, then gives up the secondary test result, takes residue 4
The average value of secondary test result is permeance property test result VL；If there are test result more than twice and this 5 times in 5 tests
The difference of the average value of test result is greater than ± 5%, then this 5 times tests are all invalid, re-starts 5 tests, until 5 examinations
In testing, at least the difference of the average value of 4 test results and this 5 test results is not more than ± the 5% of average value.
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