ASTM D4767 Cohesive Soils - Undrained Triaxial Compression Test

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ASTM D4767 testing. This test method covers the determination of the strength and stress-strain relationships of a cylindrical specimen from intact, hydrated or remolded saturated cohesive soil. Samples are isotropically consolidated and sheared by compression without drainage at a constant axial deformation rate (strain controlled).

This test method allows calculation of total and effective stresses and axial compression by measuring axial load, axial deformation and pore water pressure.

This test method provides useful data in determining the strength and deformation properties of cohesive soils such as Mohr envelopes of strength and Young's modulus. Generally, three specimens are tested at different effective consolidation stresses to define an envelope of strength.

Identifying envelopes of strength and developing relationships to aid in the interpretation and evaluation of test results is beyond the scope of this test method and should be performed by a qualified, experienced professional.

The methods used in this standard to specify how data is collected, calculated, or recorded are considered industry standards. In addition, they often represent important digits that need to be hidden. The procedures used do not take into account material variation, the purpose for which the data were obtained, special-purpose studies, or any end-use considerations. It is beyond the scope of this test method to consider the important steps used in analysis methods for engineering design.

Values ​​stated in SI units should be accepted as standard. The inch-pound units in parentheses are mathematical conversions that are provided for informational purposes only and are not considered standard. Reporting test results in units other than SI will not be considered non-compliance with this test method.

The terms density and unit weight are often used interchangeably. Density is mass per unit volume and unit weight is force per unit volume. In this standard, density is given in SI units only. Once density is determined, unit weight is calculated in SI or inch-pound units, or both.

This standard does not purport to address all, if any, safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use.

EUROLAB assists manufacturers with ASTM D4767 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.