ASTM C1698 - 19 - Standard Test Method for Autogenous Strain of Cement Paste and Mortar

ASTM C1698 - 19

Standard Test Method for Autogenous Strain of Cement Paste and Mortar

Status : Current   Published : October 2019

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1.1 This test method measures the bulk strain of a sealed cement paste or mortar specimen, including those containing admixtures, various supplementary cementitious materials (SCM), and other fine materials, at constant temperature and not subjected to external forces, from the time of final setting until a specified age. This strain is known as autogenous strain. Autogenous strain is most significant in concrete with low water-cementitious materials ratio ( w/cm) (See Note 1).

Note 1:  A low water-cementitious materials ratio ( w/cm) can be considered to be a water to cement ratio of 0.40 or lower for this test.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard.

1.4  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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. ( Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.2 )

1.5  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.




Standard NumberASTM C1698 - 19
TitleStandard Test Method for Autogenous Strain of Cement Paste and Mortar
StatusCurrent
Publication Date01 October 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors autogenous strain, cement paste, length change, mortar
ICS91.100.10
PublisherASTM
FormatA4
DeliveryYes
Pages8
File Size307 KB
Price£40.00


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