ASTM C1356
Standard Test Method for Quantitative Determination of Phases in Portland Cement Clinker by Microscopical Point-Count Procedure
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About This Item
ASTM C1356 is the standard test method for quantitatively determining phases in Portland cement clinker by a microscopical point-count procedure. It provides a structured way to examine clinker microstructure and estimate phase proportions from microscope-based counting, supporting more consistent technical evaluation. For users working with cement raw materials or clinker quality assessment, this ASTM standard helps translate microscopic observations into usable data for testing, comparison, and quality control.
Purpose of ASTM C1356
The purpose of ASTM C1356 is to define a quantitative microscopical method for identifying and measuring phases present in Portland cement clinker. By using a point-count procedure, the standard offers a repeatable approach for assessing clinker composition under controlled laboratory conditions. This makes it useful when a consistent technical method is needed to support material characterization, compare sample results, or document phase distribution in a way that aligns with recognized ASTM testing practice.
Common use cases of ASTM C1356
ASTM C1356 is commonly used in cement laboratory workflows where clinker phase analysis is part of quality evaluation or process review. It may be applied during routine testing, troubleshooting, or comparative studies of Portland cement clinker samples. Laboratories that perform microscopical examination can use the method to support internal assessment, production monitoring, or technical documentation. The standard is especially relevant when quantitative phase information is needed from microscope-based analysis.
Why ASTM C1356 matters
This standard matters because it supports more consistent and defensible phase analysis in Portland cement clinker. A defined test method helps reduce ambiguity in how results are obtained, which is important for quality control, procurement review, and technical comparison between samples. ASTM C1356 can also help laboratories maintain alignment with accepted ASTM practice when reporting microscopical findings, improving confidence in the data used for evaluation and decision-making.
- Quantitative clinker phase determination
- Microscopical point-count procedure
- Portland cement clinker analysis
- Laboratory quality control support
- Technical comparison of phase distributions
- Publication Date: 2024-12-11
- Publisher: ASTM
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