Method for determining particle size distribution of Guiyang red clay based on laser particle size analyzer

A laser particle size and particle size distribution technology, which is applied in particle size analysis, particle and sedimentation analysis, and material analysis, can solve problems that cannot meet the needs of scientific research on Guiyang red clay particles, and achieve clear thinking, improved separation, and simple operation Effect

Pending Publication Date: 2018-09-28
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Considering the influence of the above-mentioned special microstructure of Guiyang red clay on the particle size distribution test, the traditional geotechnical particle size distribution test method can no longer meet the needs of scientific research involving the particle characteristics of Guiyang red clay in this area. Therefore, it is very necessary to propose an accurate measurement of Guiyang red clay Method for Particle Size Distribution of Red Clay

Method used

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  • Method for determining particle size distribution of Guiyang red clay based on laser particle size analyzer
  • Method for determining particle size distribution of Guiyang red clay based on laser particle size analyzer
  • Method for determining particle size distribution of Guiyang red clay based on laser particle size analyzer

Examples

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Effect test

Embodiment 1

[0041] A method for measuring the particle size distribution of Guiyang red clay based on a laser particle size analyzer, specifically comprising the following steps:

[0042] ①Take a Guiyang red clay sample in the field, bake it at 105-110°C for 35 hours, take an air-dried soil sample and put it in a mortar, put the air-dried or dried soil sample on a rubber board and grind it with a wooden mill to disperse part of the soil Can pass through a fine sieve with an aperture of 1mm;

[0043] ②Sieve the ground red clay with a fine sieve with an aperture of 1mm;

[0044] ③ Put 0.3 g of sieved red clay into a beaker filled with 12 ml of 2% sodium hexametaphosphate solution, and soak for 20 min;

[0045] ④ Stir the soaked solution in step ③ for 3 minutes with a glass rod, then put it into a constant temperature oscillator, set the temperature at 40°C, and shake at a constant temperature for two hours, immediately drain the red clay into a laser particle size analyzer with a glass rod...

Embodiment 2

[0047] A method for measuring the particle size distribution of Guiyang red clay based on a laser particle size analyzer, specifically comprising the following steps:

[0048] ① Take Guiyang red clay samples in the field, bake them at 105-110°C for 48 hours, take the air-dried soil samples and put them in a mortar, put the air-dried or dried soil samples on a rubber board and grind them with a wooden mill to disperse part of the soil Can pass through a fine sieve with an aperture of 1mm;

[0049] ②Sieve the ground red clay with a fine sieve with an aperture of 1mm;

[0050] ③ Put 0.3 g of sieved red clay into a beaker filled with 12 ml of 2% sodium hexametaphosphate solution, and soak for 25 min;

[0051] ④ Stir the soaked solution in step ③ for 3 minutes with a glass rod, then put it into a constant temperature oscillator, set the temperature at 40°C, and shake at a constant temperature for two hours, immediately drain the red clay into a laser particle size analyzer with a ...

Embodiment 3

[0053] A method for measuring the particle size distribution of Guiyang red clay based on a laser particle size analyzer, specifically comprising the following steps:

[0054] ① Take Guiyang red clay samples in the field, bake them at 105-110°C for 24 hours, take the air-dried soil samples and put them in a mortar, put the air-dried or dried soil samples on a rubber board and grind them with a wooden mill to disperse part of the soil Can pass through a fine sieve with an aperture of 1mm;

[0055] ②Sieve the ground red clay with a fine sieve with an aperture of 1mm;

[0056] ③ Put 0.3 g of the sieved red clay into a beaker filled with 12 ml of a 2% sodium hexametaphosphate solution, and soak for 15 minutes;

[0057] ④ Stir the soaked solution in step ③ for 3 minutes with a glass rod, then put it into a constant temperature oscillator, set the temperature at 40°C, and shake at a constant temperature for two hours, immediately drain the red clay into a laser particle size analyzer...

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Abstract

The invention discloses a method for determining the particle size distribution of Guiyang red clay based on a laser particle size analyzer. The method comprises: 1, taking a Guiyang red clay sample in the field, carrying out air drying, taking the dried clay sample, putting the clay sample into a mortar and carrying out full mechanical grinding, 2, screening the ground red clay through a fine sieve with pore sizes of 1 mm, 3, putting 0.3g of the screened red clay into a beaker with 12ml of a sodium hexametaphosphate solution with a concentration of 2% and carrying out immersion, and 4, stirring the immersion solution through a glass rod for 3min, then putting the mixture into a constant temperature oscillator, setting a temperature to 40 DEG C, carrying out constant temperature oscillation for 2h, immediately introducing the red clay into the laser particle size analyzer through the glass rod and carrying out particle size measurement. The method can truly show the particle size distribution of the Guiyang red clay, is simple and feasible and is easy to operate.

Description

technical field [0001] The invention relates to a method for particle dispersion and particle size testing of Guiyang red clay, in particular to a method for measuring the particle size distribution of Guiyang red clay based on a laser particle size analyzer. Background technique [0002] The particle size analysis test is to use specific instruments and methods to test the percentage of particles with different particle sizes in the total soil (soil weight or volume), quantitatively describe the content of each particle group in the soil particles, and provide a basis for soil engineering classification and exploration of soil properties. Provide a basis for the nature of the project. Therefore, before the particle size distribution test, the correct method should be used to fully disperse the particles that make up the soil, so as to objectively and truly reflect the particle composition characteristics of the soil. At present, there are many particle size analysis method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02G01N1/28G01N1/34G01N1/38
CPCG01N1/28G01N1/286G01N1/34G01N1/38G01N15/0205G01N2001/2866G01N2001/386
Inventor 左双英张彦召蒲泉杨冲贾杰南刘明发李雨菲张会仙钟帅
Owner GUIZHOU UNIV
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