ASTM D6243/D6243M-20
Standard Test Method for Determining the Internal and Interface Shear Strength of Geosynthetic Clay Liner by the Direct Shear Method

Standard No.

ASTM D6243/D6243M-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D6243/D6243M-20

Scope

1.1 This test method covers a procedure for determining the internal shear resistance of a geosynthetic clay liner (GCL) or the interface shear resistance between the GCL and an adjacent material under a constant rate of deformation. 1.2 This test method is intended to indicate the performance of the selected specimen by attempting to model certain field conditions. 1.3 This test method is applicable to all GCLs. Remolded or undisturbed soil samples can be used in the test device. See Test Method D5321/D5321M for interface shear testing of non-GCL geosynthetics. See Guide D7702/D7702M for a summary of available information related to the evaluation of direct shear results obtained using this test method. 1.4 This test method is not suited for the development of exact stress-strain relationships within the test specimen due to the nonuniform distribution of shearing forces and displacement. 1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.6 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. 1.7 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.

ASTM D6243/D6243M-20 Referenced Document

• ASTM D1557 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft³ (2,700 kN-m/m³))
• ASTM D2435/D2435M Standard Test Methods for One-Dimensional Consolidation Properties of Soils Using Incremental Loading*， 2020-04-01 Update
• ASTM D2487 Standard Test Method for Classification Of Soils For Engineering Purposes
• ASTM D3080/D3080M Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions*， 2023-11-01 Update
• ASTM D3740 Standard Practice for Minimum Requirements for Agencies Engaged in the Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
• ASTM D4439 Standard Terminology for Geosynthetics*， 2024-02-01 Update
• ASTM D5321/D5321M Standard Test Method for Determining the Shear Strength of Soil-Geosynthetic and Geosynthetic-Geosynthetic Interfaces by Direct Shear*， 2021-06-01 Update
• ASTM D6072/D6072M Standard Practice for Obtaining Samples of Geosynthetic Clay Liners
• ASTM D6496/D6496M Standard Test Method for Determining Average Bonding Peel Strength Between Top and Bottom Layers of Needle-Punched Geosynthetic Clay Liners*， 2023-05-15 Update
• ASTM D653 Standard Terminology Relating to Soil, Rock, and Contained Fluids
• ASTM D698 Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12 400 ft-lbf/ft³ (600 kN-m/m³))*， 2024-04-22 Update
• ASTM D7005/D7005M Standard Test Method for Determining the Bond Strength (Ply Adhesion) of Geocomposites*， 2024-02-01 Update
• ASTM D7466/D7466M Standard Test Method for Measuring Asperity Height of Textured Geomembranes*， 2023-11-01 Update
• ASTM D7702/D7702M Standard Guide for Considerations When Evaluating Direct Shear Results Involving Geosynthetics*， 2021-08-01 Update

ASTM D6243/D6243M-20 history

• 2020 ASTM D6243/D6243M-20 Standard Test Method for Determining the Internal and Interface Shear Strength of Geosynthetic Clay Liner by the Direct Shear Method
• 2016 ASTM D6243/D6243M-16 Standard Test Method for Determining the Internal and Interface Shear Strength of Geosynthetic Clay Liner by the Direct Shear Method
• 2013 ASTM D6243/D6243M-13a Standard Test Method for Determining the Internal and Interface Shear Resistance of Geosynthetic Clay Liner by the Direct Shear Method
• 2013 ASTM D6243-13 Standard Test Method for Determining the Internal and Interface Shear Resistance of Geosynthetic Clay Liner by the Direct Shear Method
• 2009 ASTM D6243-09 Standard Test Method for Determining the Internal and Interface Shear Resistance of Geosynthetic Clay Liner by the Direct Shear Method
• 2008 ASTM D6243-08 Standard Test Method for Determining the Internal and Interface Shear Resistance of Geosynthetic Clay Liner by the Direct Shear Method
• 2006 ASTM D6243-06 Standard Test Method for Determining the Internal and Interface Shear Resistance of Geosynthetic Clay Liner by the Direct Shear Method
• 1998 ASTM D6243-98 Standard Test Method for Determining the Internal and Interface Shear Resistance of Geosynthetic Clay Liner by the Direct Shear Method