ASTM C1365
Standard Test Method for Determination of the Proportion of Phases in Portland Cement and Portland-Cement Clinker Using X-Ray Powder Diffraction Analysis
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Language: English
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About This Item
ASTM C1365 is the standard test method for determining the proportion of phases in Portland cement and Portland-cement clinker using X-ray powder diffraction analysis. It provides a technical approach for assessing phase composition in these materials, which can support quality control, product evaluation, and more consistent interpretation of cement and clinker characteristics. For laboratories and producers, ASTM C1365 offers a recognized framework for phase analysis based on diffraction data.
Purpose of ASTM C1365
The purpose of this standard is to define a test method for estimating the proportions of phases present in Portland cement and Portland-cement clinker by X-ray powder diffraction analysis. As a technical document, it helps users apply a consistent analytical approach when examining crystalline phases in these materials. In practice, ASTM C1365 supports repeatable laboratory measurements and provides a common basis for comparing results across testing programs, materials evaluations, and quality-related studies.
Common use cases of ASTM C1365
This standard is commonly used in cement laboratories, research settings, and production environments where Portland cement or Portland-cement clinker is being analyzed for phase content. It may be applied during routine quality control, product development, or investigative testing when X-ray powder diffraction analysis is the chosen method. ASTM C1365 is especially relevant when users need a standardized way to interpret phase proportions from diffraction measurements in a controlled technical workflow.
Why ASTM C1365 matters
ASTM C1365 matters because phase information can influence how cement and clinker are understood, evaluated, and compared. A recognized test method helps improve consistency in testing, supports more reliable reporting, and reduces uncertainty in technical decisions. For organizations involved in compliance, procurement, or quality control, the standard can also help align internal testing practices with an accepted ASTM framework for phase determination.
- X-ray powder diffraction analysis method
- Phase proportion determination
- Portland cement and clinker focus
- Supports laboratory consistency
- Useful for quality and evaluation workflows
- Publication Date: 2025-07-03
- Publisher: ASTM
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