TAILIEUCHUNG - Designation: C 188 – 95 - Density of Hydraulic Cement1

This standard is issued under the fixed designation C 188; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. | Designation C 188 95 American Association State Highway and Transportation Officials Standard AASHTO No. T133 Standard Test Method for Density of Hydraulic Cement1 This standard is issued under the fixed d ii r atic n c 188 the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope This test method covers determination of the density of hydraulic cement. Its particular usefulness is in connection with the design and control of concrete mixtures. The density of hydraulic cement is defined as Hue mass of a unit volume of the solids. 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 ASTM Standards C 114 Test Methods for Chemical Analysis of Hydraulic Cement2 C 670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials3 3. Apparatus Le Chatelier flask The stanihird flask ivlndiiscircvaar in cross section with shape and dimensions conforming essentially to Fig. 1 Note 1 . The requirements in regard to tolerance inscription and length spacing and uniformity of graduation will be rigidly observed. There shall be a space of at least 10 mm between the highest graduation mars and the lowest point of grinding for the glass stopper. The material of construction shall be best quality glass transparent and free of striae. The glass shall be chemically resistant and .

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