ASTM C204-07
Historical Standard: ASTM C204-07 Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus
SUPERSEDED (see Active link, below)
ASTM C204
1. Scope
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 metres per kilogram, of cement. Two test methods are given: Test Method A is the Reference Test Method using the manually operated standard Blaine apparatus, while Test Method B permits the use of automated apparatus that has in accordance with the qualification requirements of this test method demonstrated acceptable performance. 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 judgement 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.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A582/A582M Specification for Free-Machining Stainless Steel Bars
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
E832 Specification for Laboratory Filter Papers
Other Document
BS4359:1971 British Standard Method for the Determination of Specific Surface of Powders: Part 2: Air Permeability Methods Available from British Standards Institute (BSI), 389 Chiswick High Rd., London W4 4AL, U.K., http://www.bsi-global.com.Keywords
air-permeability; apparatus; fineness: Air permeance/permeability; Blaine fineness test; Fineness--hydraulic cement (blended/portland); Hydraulic cement concrete; Portland cement;
ICS Code
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
DOI: 10.1520/C0204-07
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