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Description of ASTM-D4943 2024ASTM D4943-18-Reapproved2024Active Standard: Standard Test Method for Shrinkage Factors of Cohesive Soils by the Water Submersion MethodASTM D4943Scope 1.1 This test method covers the procedure for determining the shrinkage factors of cohesive soils, using the water submersion technique, whereby the volume of a dried soil pat is determined while suspended in a water bath. 1.2 The data obtained following this test method are also used to determine the shrinkage ratio, volumetric shrinkage, and linear shrinkage of the soil. 1.3 This test method is applicable only for cohesive soils. 1.4 Since this test method is performed only on that portion of a soil which passes the 425-μm (No. 40) sieve, the relative consistency of the tested portion of the soil to the properties of the sample as a whole must be considered when evaluating the entire soil sample. 1.5 All recorded and calculated values shall conform to the guide for significant digits and rounding established in Practice D6026. 1.5.1 The procedures, used to specify how data are collected/recorded and calculated in this standard, are regarded as the industry standard. In addition, they are representative of the significant digits that should generally be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design. 1.6 Units—The values stated in SI units are to be regarded as standard except the sieve designations are shown using the alternative sieve designation in parentheses. No other units of measurement are included in this standard. 1.7 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. For specific safety hazards, see Section 8. 1.8 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. Keywords Atterberg limits; linear shrinkage; shrinkage; shrinkage limit; shrinkage ratio; ICS Code ICS Number Code 13.080.20 (Physical properties of soils) DOI: 10.1520/D4943-18R24 This 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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