The test result of unconfined compressive strength is shown in Figure 5. This figure illustrates the stress-strain behavior of original and cement treated soil under vertical load. Initially the stress is rapidly increases with the increase of strain but in case of soaking untreated soil sample, stress increases gradually with the increase of strain. After attaining the peak stress, it decreases with the increase of strain for all the combination of cement and soil. Approximately all the specimen shows shear failure after observing the failure plane of specimens.