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Methods of testing cement - Part 6: Determination of fineness
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This European Standard describes three methods of determining the fineness of cement.The sieving method serves only to demonstrate the presence of coarse cement particles. This method is primarily suited to checking and controlling the production process.The air-jet sieving method measures the retention on sieving and is suitable for particles which substantially pass a 2,0 mm test sieve. It may be used to determine the particle size distribution of agglomerates of very fine particles. This method may be used with test sieves in a range of aperture sizes, e.g. 63 µm and 90 µm.The air permeability method (Blaine) measures the specific surface (mass related surface) by comparison with a reference cement sample. The determination of the specific surface serves primarily to check the consistency of the grinding process of one and the same plant. This method only enables a limited assessment to be made of the properties of the cement in use. NOTE The air permeability method may not give significant results for cements containing ultrafine materials.The methods are applicable to all the cements defined in EN 197.
To find similar documents by classification:
91.100.10 (Cement. Gypsum. Lime. Mortar)
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Designation Name
SS-EN 196-6:2010
Revision Level
2010 EDITION
Status
Superseded
Publication Date
Feb. 8, 2010
Language(s)
English
Page Count
28
International Equivalent
EN 196-6:2010(IDT)