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Significance and Use
5.1 This test method is used to measure the consistency (degree of self-flow) that a castable refractory demonstrates at a given level of tempering liquid at specified time intervals after the liquid is added. A self-flow of 25 % has been selected as the minimum at which a mix can be poured into typical molds or forms in normal practice.
5.2 Castable refractories which are self-flowing at one level of tempering liquid will require vibration for placement at some lower level of tempering liquid. At the tempering liquid levels which require vibration or tamping for placement, the castable refractory should be characterized using test methods which are appropriate for castable refractories designed for vibration placement, such as Test Method .
5.3 This test method is not appropriate for determining the pumpability of castable refractories.
1.1 This test method covers the determination of the consistency (degree of self-flow) of self-flowing castable refractories.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C230/C230M Specification for Flow Table for Use in Tests of Hydraulic Cement
C862 Practice for Preparing Refractory Concrete Specimens by Casting
C1445 Test Method for Measuring Consistency of Castable Refractory Using a Flow Table
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 81.080 (Refractories)
UNSPSC Code 31371200(Castables)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM C1446-19, Standard Test Method for Measuring Consistency of Self-Flowing Castable Refractories, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top