Location
Arlington, Virginia
Date
14 Aug 2008, 2:15pm - 4:00pm
Abstract
Soft clay soils often cause difficulties in construction operation with their low strength and low stiffness nature. However the engineering properties of these clay soils can be enhanced by adding ordinary Portland cement (OPC) for modification or stabilisation purposes. This paper describes the application of the cement stabilisation technique for improving the engineering properties of a soft Malaysian clay. The objectives of this study are two-fold: firstly, to study the settlement behaviour of the cement-treated clay using standard oedometers; and secondly, to explore the equal strain approach for predicting the settlement pattern of a stabilised columnar system for the clay. The quantities of cement added to the clay were 5 %, 10 % and 20 % by dry weight of the clay. The specimens were next cured in dry condition for 7, 14 and 28 days respectively to allow for investigation of the curing effect. The oedometer test results showed that cement is effective in enhancing the settlement resistance of the originally weak clay soil, and interestingly, compressibility of the clay was not markedly improved for specimens left to cure for longer periods than 7 days. In addition, settlement prediction of the stabilised columnar system using the equal strain approach showed that a columnar inclusion test in the oedometer can simulate the compressibility behaviour of a single column system with sufficient accuracy.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Chan, Chee-Ming and Abdullah, Siti Hajarahani, "Settlement Behaviour of a Cement-Stabilised Malaysian Clay" (2008). International Conference on Case Histories in Geotechnical Engineering. 39.
https://scholarsmine.mst.edu/icchge/6icchge/session07/39
Settlement Behaviour of a Cement-Stabilised Malaysian Clay
Arlington, Virginia
Soft clay soils often cause difficulties in construction operation with their low strength and low stiffness nature. However the engineering properties of these clay soils can be enhanced by adding ordinary Portland cement (OPC) for modification or stabilisation purposes. This paper describes the application of the cement stabilisation technique for improving the engineering properties of a soft Malaysian clay. The objectives of this study are two-fold: firstly, to study the settlement behaviour of the cement-treated clay using standard oedometers; and secondly, to explore the equal strain approach for predicting the settlement pattern of a stabilised columnar system for the clay. The quantities of cement added to the clay were 5 %, 10 % and 20 % by dry weight of the clay. The specimens were next cured in dry condition for 7, 14 and 28 days respectively to allow for investigation of the curing effect. The oedometer test results showed that cement is effective in enhancing the settlement resistance of the originally weak clay soil, and interestingly, compressibility of the clay was not markedly improved for specimens left to cure for longer periods than 7 days. In addition, settlement prediction of the stabilised columnar system using the equal strain approach showed that a columnar inclusion test in the oedometer can simulate the compressibility behaviour of a single column system with sufficient accuracy.
