Combining Industrial Wastes with Lime for Soil Stabilization

Abstract

Using a geotechnical viewpoint, this paper proposes a potential, partial solution to solve some of the problems posed by increasing amounts of certain types of sludgy industrial waste. The primary objective of this study is to examine the potential for burning various industrial wastes combined with lime, in certain proportions, to produce a by‐product having cementing characteristics similar to ordinary portland cement (OPC). It is found that the percentages of main cementitious compounds in this new cement‐like stabilizer are comparable to those of OPC. The by‐product also shows promise for use in stabilizing a loam soil. The contribution of ettringite to strength development is discussed. It is found that this new type of additive can be used to stabilize loam soil for subgrade purposes.