"ASTM D4546-21 is a copyrighted standard published by ASTM International. To obtain a genuine PDF copy, please purchase directly from ASTM International or an authorized reseller (e.g., IHS Markit, Techstreet, ANSI Webstore). Unauthorized distribution is prohibited. This description is for informational purposes only."
ASTM D4546-21 is a standard issued by ASTM International that outlines laboratory procedures to measure the magnitude of one-dimensional wetting-induced swell or collapse of compacted or intact soils.
The 2021 update represents the latest iteration, providing refined procedures for testing cohesive soils, particularly for foundation engineering and earthwork projects. Purpose and Application of the Standard
The percentage of vertical expansion under a specific vertical pressure. Astm D4546-21 Pdf
Provides accurate data on soil volume changes, aiding in geotechnical analysis. Finding the ASTM D4546-21 PDF
Understanding ASTM D4546-21: Standard Test Methods for One-Dimensional Swell or Collapse Potential of Soils
The primary source for the official standard. Techstreet: An authorized distributor of ASTM standards. "ASTM D4546-21 is a copyrighted standard published by
The "-21" suffix denotes that the standard was last updated or reapproved in the year 2021. It replaced the older ASTM D4546-14 version, introducing refined technical guidelines and reporting clarity. Core Testing Methodologies
The test method involves installing an anchor in soil or rock and then applying a controlled load to the anchor until failure occurs. The test can be performed using either a pressing or triaxial cell apparatus.
Detail the . Compare this method to compaction tests (like ASTM D698). Let me know how you'd like to narrow down the topic . ASTM D4546-21: Soil Swell Testing Methods | PDF - Scribd This description is for informational purposes only
(settlement of dry, porous soils).
A soil specimen is prepared (intact or compacted) and placed within a consolidometer (oedometer) ring.
| Method | Name | Key Procedure | |--------|------|----------------| | | Swell under a specified constant surcharge | Sample inundated at a fixed vertical stress (e.g., 1 psi or user-specified). | | B | Swell under a sequence of applied loads after wetting | Wetting occurs first, then loads are applied incrementally to measure swell potential. | | C | Collapse potential | Sample loaded to field stress, then inundated to see collapse strain. |
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