ASTM-C191 Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle

ASTM-C191 - 2013 EDITION - CURRENT -- See the following: ASTM-C77
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Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle
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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; Method A is the Reference Test Method using the manually operated standard Vicat apparatus, while 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 and health 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 this standard references 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 1For the method for determining the time of setting by Gillmore needles, see Test Method C266.

Keywords

automatic vicat; hydraulic-cement paste; time of setting; vicat; vicat needle; 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

ASTM-C191-13

Revision Level

2013 EDITION

Status

Current

Modification Type

Revision

Publication Date

Jan. 15, 2014

Document Type

Test Method

Page Count

8 pages

Committee Number

C01.30