Moisture Effects on Load-Penetration and Compaction Behavior of Well-Graded Granular MaterialsPages 87-95
Dalvir Singh Abstract:
In the current investigation, the soil sample was taken from Mukerian, Punjab, India. Initially, the index characteristics of the soil were examined using grain size distribution, moisture content, and specific gravity tests. Sieve analysis of the selected sample was also conducted as per the ISSC System to explore its type. A specific gravity test was performed using a pycnometer. The moisture level of the soil sample was measured under various conditions using the oven-dry method. The OMC of the soil sample was determined using a proctor test. In the last, the strength of subgrade-strength soil under different moisture conditions was also explored using the CBR test. The particle size curve formed after conducting sieve analysis revealed that the selected soil is "Well Graded Sand" (SW), and the obtained value of specific gravity was around 2.7. Also, the obtained value of OMC is equal to 10.22%. It has also been observed that CBR values increase from field moisture content to OMC conditions and then decrease rapidly. It has also been observed that under unsoaked and one-day soaking conditions, the moisture level is insignificant. Moreover, a longer soaking time results in more variations in moisture levels when taken from the top layer as compared to those in the lower layers.
Keywords: Soil index properties, Moisture content, Soaking effects, Optimum moisture content (OMC), Well-graded sand, Mechanical properties
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