Experimental Study for the Effect of Additives Silica Fume on the Properties of the Synthetically Contaminated Soil

This paper aims at studying the impact of reaction that occurs between contaminants present in soil and silica fume added on chemical, physical mechanical properties soil. The samples were contaminated laboratory with nickel nitrate (Ni(NO3)2). Silica (SF) was to three different ratios (3%, 5%, 10%). Several experiments conducted study characteristics before after adding results revealed increment percentage liquid plastic limits obtained an increase additive nickel-contaminated Notably, maximum dried densities decreased by increasing soil, while optimum water content increased value organic matter for roughly equal numbers ranging from 3.33% 4.07% (i.e., no change mixed fume). coefficient consolidation (Cv) 0.0026 a sample ions concentration 750 mg/kg without 0.0755 ratio 5% then 0.00531 10%.