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.
EN 196-6:2010 Referenced Document
EN 197-1:2000 Cement - Part 1: Composition, Specifications and Conformity Criteria for Common Cements Incorporating Amendments A1: 4/2004, and A3: 7/2007 [Superseded: CEN EN 197-1, CEN PREN 197-1]
ISO 3310-1:2000 Test sieves - Technical requirements and testing - Part 1: Test sieves of metal wire cloth
ISO 383:1976 Laboratory glassware; Interchangeable conical ground joints
ISO 4803:1978 Laboratory glassware; Borosilicate glass tubing
ISO 565:1990 Test sieves; metal wire cloth, perforated metal plate and electroformed sheet; nominal sizes of openings
EN 196-6:2010 history
2010EN 196-6:2010 Methods of testing cement - Part 6: Determination of fineness
1989EN 196-6:1989 Methods of Testing Cement; Determination of Fineness