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    CE 340, Summer 2016. Soil Classification . In a sieve analysis, the dried soil sample is placed in the top of a stacked set of sieves. The sieve . The four basic grain sizes are indicated in Figure 1 below: Gravel, Sand, Silt and Clay. . exhibit plasticity (become putty like) when mixed with a small amount of water. The mineral.

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    Aug 4, 2015 . 1 CE 353 Geotechnical Engineering Lecture Outline: 1. . 2 Classification Systems Soils in nature rarely exist separately as gravel, sand, silt, clay or organic . 6 AASHTO Soil Classification System Group Index (GI): To evaluate the quality of a soil as a . A soil having GI of zero is considered as the best.

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    Geotechnical Engineering I. CE 341 . for identification, microscopic. Soils are generally called gravel, sand, silt or clay, depending . Particle size Classification (Grain size in mm). Name of . Well graded: soil contains a good representation of all . A small amount of soil is mixed with water to a soft consistency in the palm.

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