Cargando…
Study on the Expansion Law of Dry Shrinkage Cracks in Silty Clay
Fracture characteristics are the basis of silty clay fracture research, and its quantitative description is helpful to explore the engineering properties of silty clay. The silty clay samples with different moisture contents and different aspect ratios were prepared by the controlled variable method...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182423/ https://www.ncbi.nlm.nih.gov/pubmed/35683239 http://dx.doi.org/10.3390/ma15113941 |
_version_ | 1784724031984893952 |
---|---|
author | Yue, Jianwei Li, Peng Zhao, Limin Huang, Xuanjia Xu, Xiangchun Wang, Zifa |
author_facet | Yue, Jianwei Li, Peng Zhao, Limin Huang, Xuanjia Xu, Xiangchun Wang, Zifa |
author_sort | Yue, Jianwei |
collection | PubMed |
description | Fracture characteristics are the basis of silty clay fracture research, and its quantitative description is helpful to explore the engineering properties of silty clay. The silty clay samples with different moisture contents and different aspect ratios were prepared by the controlled variable method for the drying shrinkage test. The crack image processing and crack feature extraction were performed by PS and IPP software, and the relationship between the crack propagation characteristic parameters and the change in humidity and sample moisture content during drying shrinkage were analyzed to explore the crack development law. The results show that under the continuous action of the environment, cracks were generated at the initial high temperature (46 °C). When the temperature changed from a high temperature (46 °C) to a low temperature (27 °C), the moisture content decreased faster, and the crack developed rapidly. Later, from low temperature (12 °C) to high temperature (46 °C), the water content and crack parameters remained basically unchanged; the cracks of the samples with a high moisture content appeared early, developed rapidly, and damaged seriously. When the aspect ratio was 6:1, the crack developed vertically, and when the aspect ratio was less than 6:1, the secondary crack was about 90° from the upper crack. |
format | Online Article Text |
id | pubmed-9182423 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-91824232022-06-10 Study on the Expansion Law of Dry Shrinkage Cracks in Silty Clay Yue, Jianwei Li, Peng Zhao, Limin Huang, Xuanjia Xu, Xiangchun Wang, Zifa Materials (Basel) Article Fracture characteristics are the basis of silty clay fracture research, and its quantitative description is helpful to explore the engineering properties of silty clay. The silty clay samples with different moisture contents and different aspect ratios were prepared by the controlled variable method for the drying shrinkage test. The crack image processing and crack feature extraction were performed by PS and IPP software, and the relationship between the crack propagation characteristic parameters and the change in humidity and sample moisture content during drying shrinkage were analyzed to explore the crack development law. The results show that under the continuous action of the environment, cracks were generated at the initial high temperature (46 °C). When the temperature changed from a high temperature (46 °C) to a low temperature (27 °C), the moisture content decreased faster, and the crack developed rapidly. Later, from low temperature (12 °C) to high temperature (46 °C), the water content and crack parameters remained basically unchanged; the cracks of the samples with a high moisture content appeared early, developed rapidly, and damaged seriously. When the aspect ratio was 6:1, the crack developed vertically, and when the aspect ratio was less than 6:1, the secondary crack was about 90° from the upper crack. MDPI 2022-06-01 /pmc/articles/PMC9182423/ /pubmed/35683239 http://dx.doi.org/10.3390/ma15113941 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yue, Jianwei Li, Peng Zhao, Limin Huang, Xuanjia Xu, Xiangchun Wang, Zifa Study on the Expansion Law of Dry Shrinkage Cracks in Silty Clay |
title | Study on the Expansion Law of Dry Shrinkage Cracks in Silty Clay |
title_full | Study on the Expansion Law of Dry Shrinkage Cracks in Silty Clay |
title_fullStr | Study on the Expansion Law of Dry Shrinkage Cracks in Silty Clay |
title_full_unstemmed | Study on the Expansion Law of Dry Shrinkage Cracks in Silty Clay |
title_short | Study on the Expansion Law of Dry Shrinkage Cracks in Silty Clay |
title_sort | study on the expansion law of dry shrinkage cracks in silty clay |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182423/ https://www.ncbi.nlm.nih.gov/pubmed/35683239 http://dx.doi.org/10.3390/ma15113941 |
work_keys_str_mv | AT yuejianwei studyontheexpansionlawofdryshrinkagecracksinsiltyclay AT lipeng studyontheexpansionlawofdryshrinkagecracksinsiltyclay AT zhaolimin studyontheexpansionlawofdryshrinkagecracksinsiltyclay AT huangxuanjia studyontheexpansionlawofdryshrinkagecracksinsiltyclay AT xuxiangchun studyontheexpansionlawofdryshrinkagecracksinsiltyclay AT wangzifa studyontheexpansionlawofdryshrinkagecracksinsiltyclay |