CN108828013A - A kind of rapid identification method of sea sand - Google Patents
A kind of rapid identification method of sea sand Download PDFInfo
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- CN108828013A CN108828013A CN201810413519.0A CN201810413519A CN108828013A CN 108828013 A CN108828013 A CN 108828013A CN 201810413519 A CN201810413519 A CN 201810413519A CN 108828013 A CN108828013 A CN 108828013A
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- sea sand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
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Abstract
The present invention relates to technical field of concrete more particularly to a kind of rapid identification methods of sea sand.A kind of rapid identification method of sea sand detects the conductivity of solution by conductivity measuring instrument, and to detect to sea sand, by reasonable characterization processes process design, accurate detection is gone to sea sandy amount, provides reliable reference frame for the use of sea sand.In addition, the rapid identification method of the sea sand does not use poisonous and harmful substance in the detection process, the injury caused by tester is greatly reduced, and the identification method simple process, use cost is low, and qualification result is accurate, can satisfy demand of the people to the rapid identification method of sea sand.
Description
Technical field
The present invention relates to technical field of concrete more particularly to a kind of rapid identification methods of sea sand.
Background technique
With the reinforcement of national environmental protection dynamics, river taboo is adopted causes fine aggregate resource in construction market tight with mine management
It lacks, the price of sand rises steadily, and some areas cause building site large area to be stopped work due also to sand source is in short supply, affects urban construction
Progress.And sea sand not will receive river and prohibit the interference adopted, resource is sufficient, can be used as the fine aggregate of armored concrete after desalination.But
Juice become to making under, the sea sand without desalination flows to construction market, a few years ago In Guangdong Province there have been largely due to
Use engineering accident caused by sea sand.Therefore, many cities all forbid sea sand to flow into construction market.
The chloride ion content that armored concrete sand has been made in JGJ52 must not exceed 0.06%, be for prestressed concrete
The chloride ion content of sand must not exceed 0.02% regulation.And propose the test method of chloride test.It uses in this method
Potassium chromate, this substance belong to second level carcinogen, and sucking or eating will lead to cancer.In addition, endpoint in titration process
Standard is needed to be easy 1ml or so, sensitivity is relatively low.Skill requirement phase of the chemical titration chloride ion content to operator
To higher.Therefore, chloride test method specified in standard promotes that there are certain difficulty in Concrete Enterprises.
In consideration of it, this patent develops a kind of rapid identification method of sea sand, detected by using conductivity measuring instrument molten
The mode of concentration of electric charges in liquid determines whether the chloride ion content in sand is exceeded.
A kind of rapid identification method of sea sand of the present invention, the rapid identification method of the sea sand pass through conductance measurement
Instrument detects the conductivity of solution, and to detect to sea sand, by reasonable characterization processes process design, accurate detection is gone to sea
Sandy amount provides reliable reference frame for the use of sea sand.In addition, the rapid identification method of the sea sand is in the detection process
Without using poisonous and harmful substance, greatly reduce the injury caused by tester, and the identification method simple process, using at
This is low, and qualification result is accurate, can satisfy demand of the people to the rapid identification method of sea sand.
Summary of the invention
The technical solution adopted by the present invention to solve the technical problems is：A kind of rapid identification method of sea sand, feature
It is that its step is：
（1）, take needs to identify 500 grams of sea sand, be put into band plug port grinding bottle, take 500 milliliters of distilled water with volumetric flask, will
Distilled water injects in port grinding bottle, in addition plug；
（2）, shake port grinding bottle it is primary, continue 30 seconds, it is then quiet to put port grinding bottle 8-10 minute, repeat shake port grinding bottle 3 times after, so
Port grinding bottle is stood 2 hours afterwards or more；
（3）, then pipette port grinding bottle surface solution, solution is filtered into primary, filtered solution for standby using dry filter paper；
（4）, select measurement range be：The conductivity measuring instrument of 0.01~20 μ S/cm, detecting step（3）The electricity of solution after filtering
Conductance, the temperature of environment is 18-20 degrees Celsius when detection；
（5）, conductivity measuring instrument detect that the conductivity of solution after filtering can be used as prestressing force lower than the sea sand of 0.126 μ S/cm
Sand for Concrete；Conductivity measuring instrument detects sea sand of the conductivity of solution after filtering between 0.126-0.371 μ S/cm
It can be used as steel Sand for Concrete；Conductivity measuring instrument detects sea sand of the conductivity greater than 0.371 μ S/cm of solution after filtering
It cannot be as Sand for Concrete；To complete the Rapid identification to sea sand.
A kind of rapid identification method of sea sand of the present invention, the rapid identification method of the sea sand pass through conductance measurement
Instrument detects the conductivity of solution, and to detect to sea sand, by reasonable characterization processes process design, accurate detection is gone to sea
Sandy amount provides reliable reference frame for the use of sea sand.In addition, the rapid identification method of the sea sand is in the detection process
Without using poisonous and harmful substance, greatly reduce the injury caused by tester, and the identification method simple process, using at
This is low, and qualification result is accurate, can satisfy demand of the people to the rapid identification method of sea sand.
Specific embodiment
Specific embodiment：A kind of rapid identification method of sea sand, it is characterised in that its step is：
（1）, take needs to identify 500 grams of sea sand, be put into band plug port grinding bottle, take 500 milliliters of distilled water with volumetric flask, will
Distilled water injects in port grinding bottle, in addition plug；
（2）, shake port grinding bottle it is primary, continue 30 seconds, it is then quiet to put port grinding bottle 8-10 minute, repeat shake port grinding bottle 3 times after, so
Port grinding bottle is stood 2 hours afterwards or more；
（3）, then pipette port grinding bottle surface solution, solution is filtered into primary, filtered solution for standby using dry filter paper；
（4）, select measurement range be：The conductivity measuring instrument of 0.01~20 μ S/cm, detecting step（3）The electricity of solution after filtering
Conductance, the temperature of environment is 18-20 degrees Celsius when detection；
（5）, conductivity measuring instrument detect that the conductivity of solution after filtering can be used as prestressing force lower than the sea sand of 0.126 μ S/cm
Sand for Concrete；Conductivity measuring instrument detects sea sand of the conductivity of solution after filtering between 0.126-0.371 μ S/cm
It can be used as steel Sand for Concrete；Conductivity measuring instrument detects sea sand of the conductivity greater than 0.371 μ S/cm of solution after filtering
It cannot be as Sand for Concrete；To complete the Rapid identification to sea sand.
A kind of rapid identification method of sea sand of the present invention, the rapid identification method of the sea sand pass through conductance measurement
Instrument detects the conductivity of solution, and to detect to sea sand, by reasonable characterization processes process design, accurate detection is gone to sea
Sandy amount provides reliable reference frame for the use of sea sand.In addition, the rapid identification method of the sea sand is in the detection process
Without using poisonous and harmful substance, greatly reduce the injury caused by tester, and the identification method simple process, using at
This is low, and qualification result is accurate, can satisfy demand of the people to the rapid identification method of sea sand.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (1)
1. a kind of rapid identification method of sea sand, it is characterised in that its step is：
（1）, take needs to identify 500 grams of sea sand, be put into band plug port grinding bottle, take 500 milliliters of distilled water with volumetric flask, will
Distilled water injects in port grinding bottle, in addition plug；
（2）, shake port grinding bottle it is primary, continue 30 seconds, it is then quiet to put port grinding bottle 8-10 minute, repeat shake port grinding bottle 3 times after, so
Port grinding bottle is stood 2 hours afterwards or more；
（3）, then pipette port grinding bottle surface solution, solution is filtered into primary, filtered solution for standby using dry filter paper；
（4）, select measurement range be：The conductivity measuring instrument of 0.01~20 μ S/cm, detecting step（3）The electricity of solution after filtering
Conductance, the temperature of environment is 18-20 degrees Celsius when detection；
（5）, conductivity measuring instrument detect that the conductivity of solution after filtering can be used as prestressing force lower than the sea sand of 0.126 μ S/cm
Sand for Concrete；Conductivity measuring instrument detects sea sand of the conductivity of solution after filtering between 0.126-0.371 μ S/cm
It can be used as steel Sand for Concrete；Conductivity measuring instrument detects sea sand of the conductivity greater than 0.371 μ S/cm of solution after filtering
It cannot be as Sand for Concrete；To complete the Rapid identification to sea sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810413519.0A CN108828013A (en) | 2018-05-03 | 2018-05-03 | A kind of rapid identification method of sea sand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810413519.0A CN108828013A (en) | 2018-05-03 | 2018-05-03 | A kind of rapid identification method of sea sand |
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| CN108828013A true CN108828013A (en) | 2018-11-16 |
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| CN201810413519.0A Pending CN108828013A (en) | 2018-05-03 | 2018-05-03 | A kind of rapid identification method of sea sand |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093206A (en) * | 2006-06-22 | 2007-12-26 | 华东电力试验研究院有限公司 | Method of online testing and controlling content of chloridion in boiler water |
| CN103926305A (en) * | 2013-01-10 | 2014-07-16 | 中国矿业大学(北京) | Instrument and method for measuring water-soluble chlorine content of concrete |
| CN104634856A (en) * | 2015-02-04 | 2015-05-20 | 中国建材检验认证集团股份有限公司 | Method for detecting content of chlorine ions in sea sand |
| CN207281001U (en) * | 2017-10-10 | 2018-04-27 | 江苏同力建材集团有限公司 | One kind surveys sea sand chlorion Quick testing instrument |
-
2018
- 2018-05-03 CN CN201810413519.0A patent/CN108828013A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093206A (en) * | 2006-06-22 | 2007-12-26 | 华东电力试验研究院有限公司 | Method of online testing and controlling content of chloridion in boiler water |
| CN103926305A (en) * | 2013-01-10 | 2014-07-16 | 中国矿业大学(北京) | Instrument and method for measuring water-soluble chlorine content of concrete |
| CN104634856A (en) * | 2015-02-04 | 2015-05-20 | 中国建材检验认证集团股份有限公司 | Method for detecting content of chlorine ions in sea sand |
| CN207281001U (en) * | 2017-10-10 | 2018-04-27 | 江苏同力建材集团有限公司 | One kind surveys sea sand chlorion Quick testing instrument |
Non-Patent Citations (3)
| Title |
|---|
| 刘丹 等: "在线电导仪监测洗水中的氯离子", 《纯碱工业》 * |
| 杨传嵩 等: "电导法测定水泥混凝土用水的氯化物", 《黑龙江科技信息》 * |
| 江京平: "《建筑用砂》(GB/T14684-2001)内容概要与人工砂应用前景展望", 《建筑技术》 * |
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Application publication date: 20181116 |
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