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 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
SOILS IN INDIA The various types of soils found in India are discussed below 1. Laterite Soil/Red Soil: These soils are found in those regions which receive heavy rain fall. This soil is poor in lime content and hence it is more acidic. It is basically red in colour because of the presence of iron … Read more
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
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 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 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