A Procedure to Prepare Sand–Clay Mixture Samples for Soil–Structure Interface Direct Shear Tests
| Autor: | Andreea-Roxana Vasilescu, Khaoula Othmani, Jiangxin Liu, Eugenia Di Filippo, Kexin Yin |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science QH301-705.5 QC1-999 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology sand–clay mixture 0201 civil engineering General Materials Science Sample preparation Biology (General) Composite material QD1-999 Instrumentation Water content interface direct shear test 021101 geological & geomatics engineering Fluid Flow and Transfer Processes sample preparation Physics Process Chemistry and Technology Homogeneity (statistics) General Engineering Repeatability Engineering (General). Civil engineering (General) Oedometer test uniformity Computer Science Applications soil–structure interface Chemistry Soil structure Distilled water Direct shear test TA1-2040 |
| Zdroj: | Applied Sciences Volume 11 Issue 12 Applied Sciences, Vol 11, Iss 5337, p 5337 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11125337 |
| Popis: | A large number of experimental studies on sand–clay mixtures are well documented in the literature however, the preparation protocol is rarely clearly detailed or varies a lot according to the authors. Variations in the preparation technique obviously increases the challenge of comparing different test results. As a consequence, sample preparation for sand–clay mixtures should be kept as constant as possible to ensure homogeneity and uniformity of samples and limit result variability. This paper develops a detailed procedure on how to prepare sand–clay samples for interface direct shear tests. Sand–clay mixtures are prepared with Fontainebleau sand, kaolinite clay and distilled water by the S1 (sand–water–clay) protocol. The uniformity of the reconstituted specimens is assessed by measuring the water content and density on three slices from the top to the bottom across the specimens. The repeatability of the samples is checked with oedometer and interface direct shear tests. This sample preparation procedure can be used for preparing sand–clay mixture for interface direct shear tests to investigate the influence of clay content or other effects (e.g., temperature) on the mechanical behavior of soil–structure interface. It has demonstrated great performance in preparing samples with good homogeneity and shape, compared to other traditional reconstitution techniques. With the sample preparation procedure, we can obtain repeatable test results as well. |
| Databáze: | OpenAIRE |
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