Solidification behavior of fine-grained dredged marine soils: strength improvement

Azhar, Amira and Chan, Chee-Ming and Abd. Karim, Ahmad Tarmizi (2014) Solidification behavior of fine-grained dredged marine soils: strength improvement. Electronic Journal of Geotechnical Engineering, 4 (3A). pp. 48-53. ISSN 1089-3032

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Abstract

Solidification is a method that aims in improving the engineering properties of soil such as soil strength. Chemical stabilization involves mixing of soil with cement. This will result on the hardening of the mixture by hydration of the cement. This study aims to determine the stabilization or hydration effect of the binders to dredged marine soil. Three types of binders are used in these studies that are ordinary Portland cement, fly ash and bottom ash. Mixture of binders varying from 5% to 25% was added to stabilize the dredged marine soil. Cone penetration test and laboratory vane shear test were conducted on these samples. The samples were air cured at room temperature (25 ± 5°C) for 3 days. The results also showed that strength increase with increasing amount of cement, fly ash and bottom ash. The shear strength of the samples also increase with increasing of curing period The hydration process of soil-cement mixture occurs immediately after mixing process. For the mixture of fly ash-soil and bottom ash-soil, the pozzolanic reaction occurs but only in small reaction.

Item Type:Article
Uncontrolled Keywords:fine-grained; dredged marine soil; cementitious; solidification
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
Divisions:Faculty of Civil and Environmental Engineering > Department of Civil Engineering Technology
ID Code:6862
Deposited By:Normajihan Abd. Rahman
Deposited On:30 Apr 2015 10:12
Last Modified:30 Apr 2015 10:12

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