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Geotechnical Aspects of Pavement Engineering by Manjriker Gunaratne, Nishantha Bandara

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CHAPTER 3

GEOTECHNICAL EXPLORATION, TESTING, AND SUBGRADE CHARACTERIZATION

Geotechnical exploration, testing, and subgrade characterization play an important role in pavement design and construction. Generally, most of the pavement construction materials, except the foundation soils, are engineered in practice. The pavement designer can specify what type of materials to use in these upper pavement layers during the design process and also evaluate the quality of materials used during construction. On the other hand, existing foundation soils are naturally occurring materials, and thus their properties cannot be expected to be homogeneous and isotropic. Therefore, it is important to assess the characteristics of the foundation soils first during ...

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