This article first introduces a new method of characterization expansive clays after oedometer test results performed on intact saturated clay specimens. On the presumed specimens, tests are preceded by free swelling from which pressure is measured. From current carried out and non-expansive clays, ratio compression index (C c ) s was determined. A threshold value C /C identified to distinguish...

The initial consolidation settlement process of saturated cohesive soils has been one of the most important issues to geotechnical engineers especially in important and sensitive structures based which are located on saturated clay layer with high thickness.  In dealing with initial consolidation settlement process and reducing its negative and destructive consequences, a number of solutions ha...

The coefficient of consolidation in the Terzaghi theory of consolidation has been commonly determined by fitting the theory to observed compression with time in an incremental loading oedometer test. The Terzaghi theory is applicable to compression and swelling. A similar coefficient governed by horizontal permeability is used in the Barron formulation of consolidation with vertical drains. The...

Saturated fine-grained soils can undergo large settlements over a long period of time. Therefore, the estimation of both the total settlement and the rate of change of cohesive soils under field loading is essential for geotechnical engineering design and analysis. The total settlement can be determined from deformation moduli such as the tangent constrained modulus, M, while the time rate of s...

In this study, the compression behaviour of unsaturated damaged COx claystone is investigated by performing high pressure oedometer tests with controlled suction. The samples were prepared shearing in triaxial conditions. Four conducted using different suctions. effects suction and damage on swelling oedometer. Results show that intact exhibits a larger strain than one at same imposed lower dis...

Volcanic soil is often used as fill material in road embankment construction Java island-Indonesia. An understanding of the engineering properties compacted volcanic soils needed, especially during preliminary design phase and detailed embankment. Carrying out a field compaction trial test will significantly assist process construction. Selecting correct number passes from compactor can be obta...