SU519616A1 - Porosity measurement method - Google Patents
Porosity measurement methodInfo
- Publication number
- SU519616A1 SU519616A1 SU2040778A SU2040778A SU519616A1 SU 519616 A1 SU519616 A1 SU 519616A1 SU 2040778 A SU2040778 A SU 2040778A SU 2040778 A SU2040778 A SU 2040778A SU 519616 A1 SU519616 A1 SU 519616A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- measurement method
- density
- water
- porosity
- porosity measurement
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
Изобретение относитс к области измерени пористости твердых тел.The invention relates to the field of measuring the porosity of solids.
Известеи способ измерени пористости твердых тел путем последовательного насыщени пикнометрическими жидкост ми с различными критическими размерами молекул и определении объема пор по -весу поглощенной жидкости н плотности.Izvesti is a method of measuring the porosity of solids by successively saturating with pycnometric liquids with various critical molecular sizes and determining the pore volume by the weight of the absorbed liquid and density.
Невысока точность такого снособа обусловлена воздействием адсорбционного потенциала па плотность укладки молекул.The low accuracy of this method is due to the effect of the adsorption potential on the density of molecular packing.
Цель изобретени - повышение точности измерений.The purpose of the invention is to improve the measurement accuracy.
Это достигаетс тем, что в качестве пикнометрических жидкостей используют воду при температуре 33-37°С и керосин при комнатной температуре.This is achieved by using water at 33-37 ° C as pycnometric liquids and kerosene at room temperature.
Способ осуществл ют следующим образом.The method is carried out as follows.
Измерение пористости производ т путем последовательного насыщени образцов несколькими жидкост ми - щупами с разной проникающей способностью.The porosity is measured by successively saturating the samples with several fluids with probes with different penetrating power.
Пол.ный объем нор определ ют при первом насыщении образцов в состо нии их естественной влажности водой в точке инверсии плотностн адсорбционной воды но сравнению с плотностью воды в объеме, т. е. при температуре 33-37°С с последующим высушиванием. Затем насыщение производ т второй жидкостью , например керосином.The total volume of the holes is determined at the first saturation of the samples in the state of their natural moisture with water at the inversion point of the density of adsorption water but compared with the density of water in the volume, i.e. at a temperature of 33-37 ° C, followed by drying. Then saturation is produced with a second liquid, for example, kerosene.
По предлагаемому способу выполнены измерени пористости цементного камн основеThe proposed method was used to measure the porosity of cement stone based
иоркутинского портландцемента (при водоцементном отнощении исходного теста В/Ц 0,4), твердеющего в естественных услови х (f 20°C, ,0).Yorkuta portland cement (with a water-cement ratio of the initial W / C test 0.4), hardening under natural conditions (f 20 ° C,, 0).
Образцы цементного камн в состо нии естественной влажности насыщались влагой при 35,4°С с применением вакуумировапи , высушивались при , взвешивались с определением полного объема пор путем делени весовой влажности на плотность воды при 35,4°С, затем высушенные образцы насыщались с применением вакуумировани керосиоCement stone samples in a state of natural moisture were saturated with moisture at 35.4 ° C using vacuum units, dried at, weighed to determine the total pore volume by dividing the weight moisture by the density of water at 35.4 ° C, then the dried samples were saturated using vacuum kerosio
ном. Объем капнл рных пор (крупнее 30 А) определ лс делением привеса на плотность керосина, замеренную при помощи ареометра,no. The volume of capillary pores (larger than 30 A) was determined by dividing the weight gain by the density of kerosene, measured with a hydrometer,
сwith
а объем нор цементного гел (мельче 30 А) измер лс по разности между полным объемом пор и объемом капилл рных пор.and the volume of the cement gel holes (smaller than 30 A) was measured by the difference between the total pore volume and the capillary pore volume.
Формула и 3 о б р е т е Л и Formula and 3 about b rete e L and
Способ измерени пористости, например, цементного камн путем последовательного насыщени пикнометрическими жидкост ми с различными критичес(-1мн размерами молекул и определении объема пор по весу поглощенной жидкости и ее плотности, отличающи йс тем, что, с целью повышени точности измерений, в качестве пикнометрических жидкостей используют воду при температуре 33- 37°С и керосин при комнатной температуре.A method for measuring porosity, for example, cement stone, by successively saturating with picnometric liquids with different critical values (-1 mn molecular sizes and determining the pore volume by the weight of the absorbed liquid and its density, characterized in that, in order to improve the measurement accuracy, as picnometric liquids water is used at a temperature of 33-37 ° C and kerosene at room temperature.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2040778A SU519616A1 (en) | 1974-07-03 | 1974-07-03 | Porosity measurement method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2040778A SU519616A1 (en) | 1974-07-03 | 1974-07-03 | Porosity measurement method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU519616A1 true SU519616A1 (en) | 1976-06-30 |
Family
ID=20589923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2040778A SU519616A1 (en) | 1974-07-03 | 1974-07-03 | Porosity measurement method |
Country Status (1)
Country | Link |
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SU (1) | SU519616A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109470620A (en) * | 2018-12-10 | 2019-03-15 | 同济大学 | Method based on non-evaporable water assay hydrated cement paste blind hole porosity |
-
1974
- 1974-07-03 SU SU2040778A patent/SU519616A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109470620A (en) * | 2018-12-10 | 2019-03-15 | 同济大学 | Method based on non-evaporable water assay hydrated cement paste blind hole porosity |
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