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Soil is naturally occurring material that is used for the construction of pavements. Soil is a variable material and exhibits different properties in the different regions and becomes a challenge for the construction of roads sometimes. Hence detailed understanding of the nature of the soil in the site and its behavior as a subgrade material has to be properly assessed. Three types of soils are used for the present study namely, Black cotton soil, Gravelly sand and sandy soil. Their characteristics are assessed to decide its suitability as a road material. In-situ soil density measurement has been conventionally done using sand replacement and core cutter methods. There is an invent of a new gauge called the Non-nuclear soil density gauge which is getting popular nowadays in the determination of field density. In the present study an attempt is made to compare the densities obtained by the three different methods by varying the lift thickness of 150mm and 300mm as per MORT&H specification. The compaction of the soil is done with a rammer of size 20cm x 15cm with required number of blows. The density results obtained from the different approaches have been correlated and compared.

Comparison of Soil Characteristics and Density by Non Nuclear Soil Density Gauge with Conventional Method