2010 Volume 66 Issue 4 Pages 695-705
Paper mill sludge absorbs much water contained in poor soil and stabilizes the soil quickly. Also, even if paper mill sludge is mixed with soils, there is no problem with soil environment. In this study, in order to clarify the influence of the paper mill sludge on stabilization, the poor soils mixed with paper mill sludge are investigated by a series of laboratory tests. The following conclusions are obtained from the present study: (1) The tendency of strength reduction of the soil mixed with paper mill sludge due to adding water fluctuates with changes in the activity of the poor soil. (2) The tendency of strength recovery of the soil by paper mill sludge mixing is fluctuant with changes in the poor soil. (3) If paper mill sludge is mixed with different soil with different activity, the interaction between fibers and soil particles is different.
