ASTM C1365-98(2004)
Historical Standard: ASTM C1365-98(2004) Standard Test Method for Determination of the Proportion of Phases in Portland Cement and Portland-Cement Clinker Using X-Ray Powder Diffraction Analysis
SUPERSEDED (see Active link, below)
ASTM C1365
1. Scope
1.1 This test method covers direct determination of the proportion by mass of individual phases in portland cement or portland-cement clinker using quantitative X-ray (QXRD) analysis. The following phases are covered by this standard: aluminate (tricalcium aluminate, C 3 A), ferrite (tetracalcium aluminoferrite, C 4 AF), and periclase (magnesium oxide, M) (see Note 1).
Note 1In the future, Subcommittee C01.23 plans to add additional phases: alite (tricalcium silicate, C 3 S), belite (dicalcium silicate, C 2 S), gypsum (CSH 2 ), hemihydrate (CSH 1/2), and anhydrite (CS).
1.2 This test method specifies certain general aspects of the analytical procedure, but does not specify detailed aspects. A recommended procedure is described, but not specified. Regardless of the procedure selected, the user must demonstrate by analysis of reference materials (RM's) that the particular analytical procedure selected for this purpose qualifies (that is, provides acceptable precision and bias) (see Note 2). The recommended procedure is the one used in the round-robin analysis to determine the precision and bias levels of this test method.
Note 2A similar approach was used in the performance requirements for alternative methods for chemical analysis in Test Methods C 114.
1.3 The values stated in SI units shall be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazards, see Section 9.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C114 Test Methods for Chemical Analysis of Hydraulic Cement
C150 Specification for Portland Cement
C183 Practice for Sampling and the Amount of Testing of Hydraulic Cement
C219 Terminology Relating to Hydraulic Cement
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Keywords
alite; alkali sulfate; aluminate; belite; cement; clinker; diffractometer; ferrite; periclase; phase analysis; quantitative X-ray powder diffraction analysis; QXRD; Rietveld analysis; X-ray powder diffraction; XRD;
ICS Code
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
DOI: 10.1520/C1365-98R04
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