ASTM C191 - 21
Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
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| Fecha edición: |
2021-10-01
Anulada
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| Fecha cancelación: | 2021-10-01 |
| Idiomas disponibles: | Inglés |
| Resumen: | |
| Keywords: | automatic vicat; hydraulic-cement paste; time of setting; vicat; vicat needle; |
| Scope: | 1.1 These test methods determine the time of setting of hydraulic cement by means of the Vicat needle. Two test methods are given; Test Method A is the Reference Test Method using the manually operated standard Vicat apparatus, while Test Method B permits the use of an automatic Vicat machine that has, in accordance with the qualification requirements of this method, demonstrated acceptable performance. 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 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 1.4 The text of these test methods reference notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. Note 1: For the test method for determining the time of setting by Gillmore needles, see Test Method C266. 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. |
| ICS: | 91.100.10 - Cemento. Yeso. Cal. Mortero |
| CTN: | C01.30 - C01.30 |
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Otras Relaciones |
Es referenciada por C1912/C1912M - 25 Es referenciada por D5759-12R20 Es referenciada por C1698-19 Es referenciada por C0887-20 Es referenciada por C1857_C1857M-19 Es referenciada por C0226-22 Es referenciada por C0141_C0141M-14R22 Es referenciada por C1222-23 Es referenciada por C0150_C0150M-24 Es referenciada por D8030_D8030M-24 Es referenciada por C0827_C0827M-23 Es referenciada por C0953-24 Es referenciada por C595/C595M - 25 Es referenciada por C10/C10M - 24a Es referenciada por C1933/C1933M - 25 Es referenciada por C183/C183M - 25 Es referenciada por C1856/C1856M - 24 Es referenciada por C1948/C1948M - 24 Es referenciada por C465 - 25 Es referenciada por C1708/C1708M - 25 |
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