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Norm

ÖNORM EN 196-6

Issue date: 2010 03 01

Methods of testing cement - Part 6: Determination of fineness

This European Standard describes three methods of determining the fineness of cement. The sieving method serves only to demonstrate the presence of coarse cement particl...
Withdrawn: 2019 02 15
Publisher:
Austrian Standards International
Format:
Digital | 19 Pages
Language:
German | English | Download GER/ENG
Currently valid:
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 micrometre and 90 micrometre. 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.
ÖNORM EN 196-6
2019 02 15
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ÖNORM EN 196-6
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Issue date : 2019 02 15
Methods of testing cement - Part 6: Determination of fineness