The effect of grain size on shearing strength of sand

The object of this study is to determine experimentally the effect of definite grain size on the shearing characteristics of sandy soils. As it will be discussed in detail under the article - The Mechanics of Shear, the shearing characteristics of sandy soils depends on many factors such as grain size and shape, soil structure and relative density, the water content of soil. An attempt is made throughout the entire investigation to determine the effect of definite grain size on the shearing value and the angle of internal friction under the dry and saturated conditions. Furthermore, the results of shear tests on saturated soils as well as dry soils depend to a large extent on the rate at which the shearing force is increased, the dimensions of the specimen, and other details of the testing procedure. Therefore, all the features of the testing procedure described fully in detail to avoid misleading interpretation of the data -- Object And Scope Of Investigations, page 4