ASTM-C115 Historical Revision Information
Standard Test Method for Fineness of Portland Cement by the Turbidimeter

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Standard Test Method for Fineness of Portland Cement by the Turbidimeter (Withdrawn 2018)


1.1 This test method covers determination of the fineness of portland cement as represented by a calculated measure of specific surface, expressed as square centimetres of total surface area per gram, or square metres of total surface area per kilogram, of cement, using the Wagner turbidimeter.

1.2 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.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Values in SI units [or inch-pound units] shall be obtained by measurement in SI units [or inch-pound units] or by appropriate conversion, using the Rules for Conversion and Rounding given in of measurements made in other units. Values are stated in SI units when inch-pound units are not used in practice.

Significance and Use

The purpose of this test method is to determine whether or not the hydraulic cement under test meets the Wagner turbidimetric fineness requirements of the applicable hydraulic cement specification for which the test is being made. Fineness of the cement component is only one of the many characteristics that influence the strength capabilities of concrete.


fineness; portland cement; turbidimeter; Wagner; Fineness--hydraulic cement (blended/portland); Portland cement; Turbidimeter method; Wagner turbidimeter; 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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Document Number


Revision Level




Modification Type


Publication Date

April 1, 2010

Document Type

Test Method

Page Count

8 pages

Committee Number