PHYSICAL PROPERTIES OF SOILS — ENGINEERING PROPERTIES AND TYPES OF SOIL

PHYSICAL PROPERTIES OF SOILS Soils are viewed by Agriculturists and Engineers are in different way. The soil which is suitable may not suitable for civil Engineer for construction. Agriculturists look the soil in growing plant life, where as Civil Engineer study the soil behaviour and its application for foundations. 1.Plasticity: It is the ability of … Read more

FIELD CLASSIFICATION OF SOILS

FIELD CLASSIFICATION OF SOILS Soil are classified based on the structure, geologic origin and topography. 1. Sand Sand is the material which passes through 4.75 mm and retained in 75 micron IS sieve. It is of small rounded or angular particles. It is permeable, self draining, grifty to touch, non plastic, cohesion less, high internal … Read more

DIFFERENT SYSTEMS OF CLASSIFICATION OF SOILS

DIFFERENT SYSTEMS OF CLASSIFICATION OF SOILS The soil are classified into various classifications based on index properties of soil. 1. Textural classification 2. LS. classification 3. M.1.T. classification (Massachult Institute of Technology) 4. L.R.C classification 5. Structural classification 6. Rough classification We restrict our study to first three types. Textural Classification of Soils It is … Read more

BEARING CAPACITY OF SOIL

BEARING CAPACITY The foundation of all Civil Engineering structures transmits the loads to the soil beneath. The load per unit area of soil should be such that the resistance of soil is never exceeded. If it exceeds settlement or failure of soil in shear will takes place leads to collapse of structure. Bearing capacity of … Read more

CURVES OF ROADS — HORIZONTAL & VERTICAL CURVES

HORIZONTAL CURVES Necessity of Horizontal Curves: 1. To avoid certain religious places, monuments of Historic importance etc.. 2. To provide access to a certain locality (villages or town). 3. To preserve the certain existing amenities. 4. To solve the problems of land acquisition. Types of Horizontal Curves 1. Circular curves (a) Simple curves (b) Compound … Read more

COMPONENT PARTS OF A ROAD STRUCTURE

COMPONENT PARTS OF A ROAD STRUCTURE   COMPONENT PARTSOFAROADSTRUCTURE 1. SUB GRADE: It is the top of the ground on which the foundation rests. If the subgrade is selected at higher level leads to the natural drainage. The top of the subgrade is 600 mm above the H.FL of that area Functions: 1To support the … Read more

IMPORTANCE OF ROADS

IMPORTANCE OF ROADS Firstly,   i will talk about the importance of roads .1.Easy movement of men & material from one place to other 2 Increased education, employment, enforcement opportunities. 3. Development of tourism and better recreation 4.Increased trade and decreased cost of commodities5. Improve in road design. 6. Modernization of construction techniques. 7. Introduction of … Read more