Due to the lack of environmental awareness and proper monitoring of wastes resulting from industrial facilities in Egypt; it is considered a common practice to dispose inorganic wastes in possibly unsuitable nearby land. This practice results in contaminating large areas of soil which, in turn, affects the construction activities in these regions among other hazardous environmental impacts. Generally, contamination of soil changes its mechanical behavior, specifically, its shear strength. This paper investigates the change in shear strength of soil due to the exposure of sand and sand mixed with fines to inorganic contaminant. Soil samples are prepared with 0%, 20% and 40% of fines. Samples are prepared at different compaction ratios and are mixed with 0%, 2%, 6%, and 10% of contaminant. The contaminant used in this research is an acid produced as waste from industrial detergents plants. Research results showed definite negative impact on the shear strength of the contaminated soil.
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