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A platform for research: civil engineering, architecture and urbanism
Self-Healing and Desiccation Crack Behavior of Kaolinite-Rich Clay Soil
Desiccation cracks in clayey soils when subjected to rainfall events can possess a serious threat to the stability of earthen structures, including embankments, dams, and levees. This research study demonstrates the use of polydimethylsiloxane (PDMS) polymer and plate-like nano-montmorillonite (MMT) in evaluating the desiccation crack formation and healing efficiency in kaolinite-rich soil and a Western South Dakota soil. Laboratory studies were performed to characterize the soils, and engineering tests were performed on the control soil and treated soils containing different percentages of polymer and nano-MMT additives to investigate the cracking-healing phenomenon. The results indicated that the addition of the additives led to substantial changes in crack formation, propagation, and increase healing efficiency. Threshold values on the percentage composition of the polymer and nano-MMT were established. This research highlights the adaptability of novel polymer and nano-MMT additives in relegating the cracking initiation and propagation with self-healing of the desiccation cracks.
Self-Healing and Desiccation Crack Behavior of Kaolinite-Rich Clay Soil
Desiccation cracks in clayey soils when subjected to rainfall events can possess a serious threat to the stability of earthen structures, including embankments, dams, and levees. This research study demonstrates the use of polydimethylsiloxane (PDMS) polymer and plate-like nano-montmorillonite (MMT) in evaluating the desiccation crack formation and healing efficiency in kaolinite-rich soil and a Western South Dakota soil. Laboratory studies were performed to characterize the soils, and engineering tests were performed on the control soil and treated soils containing different percentages of polymer and nano-MMT additives to investigate the cracking-healing phenomenon. The results indicated that the addition of the additives led to substantial changes in crack formation, propagation, and increase healing efficiency. Threshold values on the percentage composition of the polymer and nano-MMT were established. This research highlights the adaptability of novel polymer and nano-MMT additives in relegating the cracking initiation and propagation with self-healing of the desiccation cracks.
Self-Healing and Desiccation Crack Behavior of Kaolinite-Rich Clay Soil
Tabassum, T. (author) / Bheemasetti, T. V. (author)
Geo-Congress 2020 ; 2020 ; Minneapolis, Minnesota
Geo-Congress 2020 ; 582-591
2020-02-21
Conference paper
Electronic Resource
English
Self-Healing and Desiccation Crack Behavior of Kaolinite-Rich Clay Soil
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