A STUDY OF THE EFFECT OF DYES WASTE WATER OF TEXTILEON THE ENGINEERING PROPERTIES OF CLAYEY SOIL

This stady deals with the effect of waste from textiles dyeing operation on the engineering properties of Expansive clayey soil .The tested soil was obtained from of AlYarmook district-Mosul-City, which be described as light brown stiff clay ,an inorganic type with high plasticity (CH) , It contains (38%) clay size particles ( 0.002 mm). The soil was treated with one Types of industrial waters , Taken from Textile Manufactories Directorate in Mosul city. The Results, showed that the industrial waters caused little reduction in the liquid limit and slight increment in the plastic index. The effect of industrial waters addition on the compaction characteristics, showed that an increase in the maximum dry density and decreace of the optimum moisture content were occured . As well As the industrial waters increased the unconfined compressive srrength and the shear strength parameters( ' ) ( ' C ). The study, showed that the swelling percentage and swelling pressure increase with increasing the concentration of industrial waters. On the other hand the results of consolidation test showed that the compression Index (Cc) and coefficient of consolidation ( Cv ) increase as the soil was treated with industrial waters. 9 / 12 / 2003 25 / 5 / 2005 AlRafidain Engineering Vol.14 No.1 2006