On the basis of number and arrangement of tetrahedral and octahedral sheets, silicate clays are classified into 3-different groups: 1. 1:1 Type Clay Minerals 2. 2:1 Type Minerals 3. 2: 1:1 Type Minerals. 1. 1:1 Type Clay Minerals: Such silicate clay is made up of one silica sheet and one alumina sheet combined. In soils, Kaolinite is the prominent member [...]
The grain size distribution of any soil can be determined using the grain size analysis, also called mechanical analysis. The basic method of mechanical analysis is to sieve the soil through a set of sieves of standard opening size. Sieve analysis can be used only for the mechanical analysis of gravel and sand as the smallest sieve size available is [...]
In this article we will discuss about:- 1. Need for Soil Classification 2. Particle Size Classification 3. Scientific Basis 4. Textural Classification 5. AASHTO Classification 5. Unified Soil Classification System. Need for Soil Classification: Soil classification is a system of arrangement of soils into different groups so that soils within a group have similar characteristics and behavior. It is more [...]