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ASTM C490/C490M-21

Current Revision

Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete

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1.1 This practice covers the requirements for the apparatus and equipment used to prepare specimens for the determination of length change in hardened cement paste, mortar, and concrete, the apparatus and equipment used for the determination of these length changes, and the procedures for its use.

1.2 Methods for the preparation and curing of test specimens, conditions of testing and curing, and detailed procedures for calculating and reporting test results are contained in applicable test methods.

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.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


4.1 This practice is intended to provide standard requirements for apparatus common to many test methods used in connection with cement and concrete and standardized procedures for its use. The detailed requirements as to materials, mixtures, specimens, conditioning of specimens, number of specimens, ages at which measurements are to be made, interpretation of results, and precision and bias are left to be dealt with in specific test methods.

SDO ASTM: ASTM International
Document Number C490
Publication Date Dec. 1, 2021
Language en - English
Page Count 5
Revision Level 21
Supercedes
Committee C01.95
Publish Date Document Id Type View
Dec. 1, 2021 C0490_C0490M-21 Revision
March 15, 2017 C0490_C0490M-17 Revision
Oct. 1, 2011 C0490_C0490M-11E01 Revision
Oct. 1, 2011 C0490_C0490M-11 Revision
Dec. 15, 2010 C0490_C0490M-10 Revision
Dec. 1, 2009 C0490_C0490M-09 Revision
June 1, 2008 C0490_C0490M-08 Revision