Using a series of additives materials to gypsum soil can increase their compressive strength and erosion become fit for the civil of projects in arrigation network. In this study, with the addition of five levels of cement (5, 8, 10, 12 and 15 % to dry soil), three levels of micro silica (0, 5 and 10 % cement) to local soil and processing of soil samples in two temperature (27 and 40 0C) then that compressive strength studied and were analyzed with SAS statistical software. In this study, the best combination with minimum and high compressive strength by adding 10% cement and 10% micro silica to the soil was detected. So, in order to evaluate the ability of erosion,in this sample affected by water jet plane in four angles (Ө = 0,30,60, 90) and five speed (V = 2, 4,6, 8,8.64 m/s) and three times (T =4,8,12 hr) and the most weight loss (dw) between the speed of 4 to 8 m/s and speed h=8 hr and later than in horizontal conditions (Ө=0) was abserved

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