Stabilization effects of surplus soft clay with cement and GBF slag

Article type: Research Article

Authors: LU, Jiang | MODMOLTIN, Chirdchanin | ONITSUKA, Katsutada

Affiliations: Department of Civil Engineering, Saga University, Saga, Japan 840-8502 | Faculty of Engineering, Siam University, Bangkok 10163, Thailand

Note: [] Corresponding author. E-mail: lujiang@cc.saga-ac.jp

Abstract: Utilization of industrial waste and surplus construction soft clay as construction material was recommended, and many attempts at geotechnical waste utilization were undertaken. This study aimed at the application of cement and a kind of industrial wastes, i.e. granulated blast furnace slag, on stabilization of surplus soft clay. The results showed that the cement and slag can successfully stabilize Ariake clays even though this high organic clay fails to be stabilized by lime and cement. Addition of slag in cement for stabilization induces higher strength than cement alone for longer curing time. The application of the cement with slag is more suitable than cement alone for stabilization because of economical consideration.

Keywords: surplus soft clay, stabilization, GBF slag, cement, organic matter, lime, humic acid

Journal: Journal of Environmental Sciences, vol. 16, no. 3, pp. 397-403, 2004