Dataset for "Time-dependent behaviour of sand with different fine contents under oedometric loading"

This dataset can be used to investigate the time-dependent behavior of sand with varying fine contents under oedometric loading. The paper attached showed that creep rates increased with vertical stress and fine content, while relaxation exhibited quasi-isochronous behavior.

The experimental program included a serial of load-controlled and strain rate-controlled tests, alongside stress relaxation tests, focusing on creep, strain rate dependency, and stress relaxation phenomena. Four groups of sands with fine contents ranging from 2.8% to 46% were tested to examine their mechanical responses. Key variables included vertical stress (125–2000 kPa), strain rate, axial force, displacement, and time. Experimental procedures employed both constant rate of strain (CRS) and stepwise strain rate change (ChRS) methods.

The experimental dataset consists of detailed records from oedometric loading tests investigating the time-dependent behavior of sands with varying fine contents. The dataset includes 36 columns covering parameters such as time, testing phases, axial force, displacement, stress, strain, and deformation rates. Key measurements include axial force (kN), axial displacement (mm), axial strain (%), stress rate (kN/m²/min), and maximum values of force, displacement, and strain. Data is segmented into phases to capture both load-controlled and strain rate-controlled test results.