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Investigation on strength behavior of cemented dredged clay with straw at various curing stages.
- Source :
- Marine Georesources & Geotechnology; Feb2024, Vol. 42 Issue 2, p213-221, 9p
- Publication Year :
- 2024
-
Abstract
- Dredged clay with high water is difficult to use directly in practical engineering due to its extra-low strength. So, a solidifying treatment is often used to improve its engineering properties. In this study, a number of unconfined compression shear tests were conducted to investigate the strength behavior of cemented dredged clay with straw at different curing stages. For cemented dredged clay cured for a few days, the addition of filamentous straw and powdered straw would enhance its unconfined compressive strength (q<subscript>u</subscript>). Then, a decrease in q<subscript>u</subscript> is observed for samples with a small straw content as the curing time increases, mainly due to the deterioration of the straw. However, solidified soil amended by granular straw sees its q<subscript>u</subscript> decreases with increasing straw content decreasing its compactness and integrity. In addition, the failure strain (ε<subscript>f</subscript>) varies mostly within the range of (1.0% and 4.0%) and basically decreases with the increasing curing time and straw content. For the cemented dredged clay used in this research, the straw less than 6 mm with a ratio of sample diameter-to-straw length greater than 6.7 is helpful for improving the early-stage strength behavior when the straw content is less than 8%. [ABSTRACT FROM AUTHOR]
- Subjects :
- STRAW
CLAY
COMPRESSIVE strength
SOIL granularity
Subjects
Details
- Language :
- English
- ISSN :
- 1064119X
- Volume :
- 42
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Marine Georesources & Geotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 175301507
- Full Text :
- https://doi.org/10.1080/1064119X.2023.2167622