ASTM-C204 Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus

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Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus




1.1 This test method covers determination of the fineness of hydraulic cement, using the Blaine air permeability apparatus, in terms of the specific surface expressed as total surface area in square centimetres per gram, or square meters per kilogram, of cement. Although the test method may be, and has been, used for the determination of the measures of fineness of various other materials, it should be understood that, in general, relative rather than absolute fineness values are obtained.

1.1.1 This test method is known to work well for portland cements. However, the user should exercise judgment in determining its suitability with regard to fineness measurements of cements with densities, or porosities that differ from those assigned to Standard Reference Material No. 114.

1.2 The values stated in SI units are to be regarded as the standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


air permeability; apparatus; fineness; ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)

To find similar documents by ASTM Volume:

04.01 (Cement; Lime; Gypsum)

To find similar documents by classification:

91.100.10 (Cement. Gypsum. Lime. Mortar)

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Publication Date

Dec. 1, 2017

Document Type

Test Method

Page Count

10 pages

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