Bulk density/ open porosity - ReStaR

Bulk density/ open porosity The bulk density (BD) is the amount of refractory material within a volume (kg/m 3). An increase in bulk density of a given refractory increases its volume stability, heat capacity and resistance to slag penetration. The apparent porosity or open porosity (oPo) is the volume of the open pores, into which a liquid can ...

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ASTM C20 - 00(2015) Standard Test Methods for Apparent ...

C20 - 00(2015) Standard Test Methods for Apparent Porosity, Water Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Boiling Water, apparent porosity, apparent specific gravity, bulk density, refractory shapes, water absorption, water boil,,

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THE IMPORTANCE AND TESTING OF DENSITY / …

• Apparent Porosity (% AP) is open pore volume as a percentage of Bulk Volume • Apparent Solid Density (or ASG) is mass divided by Apparent Solid Volume • Apparent Solid Volume is the volume of solid and of closed porosity

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Standard Test Methods for Apparent Porosity, Water ...

Standard Test Methods for Apparent Porosity, Water Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Boiling Water

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Porosity - Wikipedia

Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and . Strictly speaking, some tests measure the "accessible void", the total amount of void space accessible from the surface (cf. …

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Properties of Refractories | ispatguru.com

Properties of Refractories. ... Frequently, not the values of the true porosity but those of apparent porosity (open porosity) are used as the application property.

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APPARENT POROSITY AND TRUE POROSITY OF …

APPARENT POROSITY AND TRUE POROSITY OF REFRACTORY SAMPLES Porosity is the percentage relationship between the volume of the pore space and the total volume of the refractory sample.

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Porosity, pore size distribution and in situ strength of ...

The apparent porosity and pore size distribution of ... exposure to open air and ... the variation of in situ strength of concrete with apparent porosity ...

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How to measure the apparent porosity and bulk density …

A think that the notion of "apparent porosity" does not exist. while, "closed porosity" and "total porosity" or "open porosity" is used instead. if you talk about the open or accessible porosity, you can determine it using the vacuum saturation method.

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Density logging - PetroWiki

A density-logging tool sends gamma rays into a formation and detects those that ... apparent porosity measured by a CNL in ... 5.6.1 Open hole or cased hole log ...

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KGS--Geological Log Analysis--Nuclear Porosity Logs

Nuclear Logging. The gamma ray log ... is set for an apparent porosity. ... wackestones which represent open-marine micritic …

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Apparent Porosity and True Porosity - scribd.com

Share on Facebook, opens a new window Share on Twitter, opens a new window Share on LinkedIn Share by email, opens mail client the total volume of the refractory sample. Apparent Porosity does not include the volume of the sealed pores. The True Porosity includes the volume of the sealed pores also ...

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Determining the apparent density and open …

determining the apparent density and open porosity of magnesite clinker from its bulk density* i. p. tsibin and yu. p. vorob'ev udc 666.763.42:620.162

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reduce the porosity as much as possible Pores can be ...

Porosity Pores are flaws that reduce the tensile strength of ceramics Some porosity can be helpful for thermal shock or for filters, but generally it should be avoided Pores may be isolated (closed pores) or interconnected (open pores) Archimedes method is used to calculate the amount of open porosity (apparent porosity) and the true porosity ...

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Standard Test Methods for Apparent Porosity, …

6.3 Apparent Porosity, P—The apparent porosity ex- presses as a percentage the relationship of the volume of the open pores in the specimen to its exterior volume.

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Porosity and Pore Size Distribution - USGS

REPRINT – Nimmo, J.R., 2004, Porosity and Pore Size Distribution, in Hillel, D., ed. Encyclopedia of Soils in the Environment: London, Elsevier, v. 3, p. 295-303. the soil must be conducted so as not to com-

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2.Density and porosity - elearning.sut.ac.th

Apparent Porosity = Ratio of open pore volume to total volume % App. Porosity = open pore vol. x 100 Total vol. = S –D x 100 S –I

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POROSITY LOGGING - Kansas Geological Survey

POROSITY LOGGING The porosity of a zone can be estimated either from a single "porosity ... individual log records an apparent porosity that is only true when the zone

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neutron porosity - Schlumberger Oilfield Glossary

The neutron porosity log is strongly affected by clay and gas. ... Gas has a low hydrogen density, so that gas zones have a very low apparent porosity.

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The Apparent Porosity For Chromite - stern1900.eu

Apparent density and open porosity were defined by means of . Porosity in the . During liquid phase synthesis of lanthanum chromite seems cleaning of the .

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what is the % apparent porosity for chromite

what is the apparent porosity for chromite -, Study of magnesite-chromite brick after service in a, The apparent porosity of the brick before service was 176-186% ...

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Calculate Apparent Porosity, Volume of Pores - Online ...

An apparent Porosity is defined as the quantity of void (or pores) present in a volume of sediment or porous solid. Generally, the value of porosity is …

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2.Density and porosity - Suranaree University of …

30/07/52 Density and porosity/S.T.Rattanachan 9 Apparent solid Volume = = the difference between dry weight ( D ) and the immersed weight ( I ) of piece.

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