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Admixing dredged marine clay with cement-bentonite for reduction of compressibility

Nur Rahilman, Nur Nazihah and Chan, Chee-Ming (2017) Admixing dredged marine clay with cement-bentonite for reduction of compressibility. AIP Conference Proceedings, 1903 (050014). pp. 1-7. ISSN 15517616

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Abstract

Cement-based solidification/stabilization is a method that is widely used for the treatment of dredged marine clay. The key objective for solidification/stabilization is to improve the engineering properties of the originally soft, weak material. Dredged materials are normally low in shear strength and bearing capacity while high incompressibility. In order to improve the material’s properties for possible reuse, a study on the one-dimensional compressibility of lightly solidified dredged marine clay admixed with bentonite was conducted. On the other hand, due to the viscous nature, particularly the swelling property, bentonite is a popular volumising agent for backfills. In the present study, standard oedometer test was carried out to examine the compressibility of the treated sample. Complementary strength measurements were also conducted with laboratory vane shear setup on both the untreated and treated dredged marine clay. The results showed that at the same binder content, the addition of bentonite contributed significantly to the reduction of compressibility and rise in undrained shear strength. These improved properties made the otherwise discarded dredged marine soils potentially reusable for reclamation works, for instance.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Engineering Technology > Department of Civil Engineering Technology
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 30 Apr 2019 01:08
Last Modified: 30 Apr 2019 01:08
URI: http://eprints.uthm.edu.my/id/eprint/11048
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