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Description of ASTM-C1356 2012ASTM C1356 - 07(2012)Standard Test Method for Quantitative Determination of Phases in Portland Cement Clinker by Microscopical Point-Count ProcedureActive Standard ASTM C1356 | Developed by Subcommittee: C01.23 Book of Standards Volume: 04.01 ASTM C1356Significance and Use 5.1 This test method provides a relatively simple and reliable microscopical means of measuring the phase abundance of portland cement clinker ( Note 1 ). Microscopical point counting provides a direct measure of the clinker phase composition in contrast to the calculated Bogue phase composition ( Note 2 ).
Note 1 This test method utilizes a reflected light microscope. Related methods such as transmitted light
microscopy, scanning electron microscopy, and automated imaging techniques may also be used for clinker analysis but are not presently included in this test method.
Note 2 This test method allows direct determination of the proportion of each individual phase in
portland-cement clinker. This test method is intended to provide an alternative to the indirect estimation of phase proportion using the equations in Specification C150 (footnote C in Table
number 1 and footnote B in Table number 2).
5.2 This test method assumes the operator is qualified to operate a reflected light microscope and the required accessories, is able to correctly prepare polished sections and use necessary etchants, and is able to correctly identify the constituent phases. 5.3 This test method may be used as part of a quality control program in cement manufacturing as well as a troubleshooting tool. Microscopic characterization of clinker phases may also aid in correlating cement properties and cement performance in concrete, to the extent that properties and performance are a function of phase composition. 1. Scope 1.1 This test method covers a systematic procedure for measuring the percentage volume of the phases in portland cement clinker by microscopy. 1.2 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. 1.3 The values stated in SI units are to be regarded as the standard.
ASTM Standards C150 Specification for Portland Cement C219 Terminology Relating to Hydraulic Cement C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials D75 Practice for Sampling Aggregates D3665 Practice for Random Sampling of Construction Materials Keywords alite; aluminate; belite; ferrite; periclase; portland-cement clinker; reflected light microscopy ; ICS Code ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar) DOI: 10.1520/C1356-07R12 ASTM International is a member of CrossRef. ASTM C1356This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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