Comparison of Soil properties between Normal Land and Waste Dump Site

Abstract

Geotechnical aspects and properties of the soil from the waste dump site sometimes show diverted behavior in comparison with normal land site. Soil from waste dump site shows abrupt nature and it may be acidic or alkaline based on the categories of the effluent that are being dumped on the top soil. When the soil treated with waste, it shows different nature than normal condition due to penetration of Leachate. This study aims to investigate into the effect of pH on the geotechnical properties of soil of normal land and waste dump sites and comparison between them based on the tests and considerations presented in this paper. To demonstrate this experiment, disturbed and undisturbed soil samples were collected from some selected locations of Khulna region. Experiments were conducted following the ASTM (2004) methods. The obtained results show that pH has a prominent influence on geotechnical properties including Specific Gravity, Plastic Limit (PL), Liquid Limit (LL), Shrinkage Limit (SL), Moisture Content, Undrained shear strength and preconsolidation stress of soil samples. Based on the test results it is seen that for the normal land soil show different behavior than the soil from dump site. Soil from dump site may range pH below 7 to upper 7, but for the normal land soil it shows always greater than 7. For this basic difference sometimes some properties of these two did not well match. Therefore, this paper provides insight regarding how the geotechnical properties of soil change with pH.