1. Scope
1.1 This test method is used to predict the consistency of portland cement and assess the risk of early stiffening behavior in a cementitious paste. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. 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. 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. See 1.4 for a specific warning statement. 1.4 Warning--Fresh hydraulic cementitious mixtures are caustic and may cause burns to skin and tissue upon prolonged exposure. The use of gloves, protective clothing, and eye protection is recommended. Wash contact area with copious amounts of water after contact. Wash eyes for a minimum of 15 min. Avoid exposure of the body to clothing saturated with the liquid phase of the unhardened material. Remove contaminated clothing immediately after exposure.
This test method is used in many quality control labs for determining the compatibility of cement with admixtures and setting time. It has been in use for many years but never standardized.
Keywords
cement paste; mini-slump; workability; incompatibility; early stiffening; false set; flash set
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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