The foundation engineering is an important branch of soil engineering. The type of soil depends on the rock type, its mineral constituents and the climatic regime of the area. Soils are used as construction materials or the civil engineering structures are founded in or on the surface of the earth. Geotechnical properties of soils influence the stability of civil engineering … Engineering properties of fills depend upon the type of soil, its water content and the degree of compaction. Swedish soil scientist and chemist Albert Mauritz Atterberg, in the early 1900s, first identified that a gradual decrease in water content of a clay soil slurry causes the soil to pass through different states or conditions. Soils are used as construction materials or the civil engineering structures are founded in or on the surface of the earth. COHESION It is the internal molecular attraction which resists the rupture or shear of a material. Civil engineers just design buildings and oversee their construction, right? Fig.1. Soil is important to civil engineers for various reasons, some of which are described below- Foundations: Almost all the civil engineering structures rest on the soil. Gravel: It is a type of coarse-grained soil. The following properties of soil are taken into consideration while dealing with soil as a construction material. Importance of Permeability of Soil. What do engineers have to do with geology? Geology is an essential subject for civil engineer services to utilize. The design of earth dams is very much based upon the permeability of soil used. Cohesion It is the internal molecular attraction which resists the rupture or shear of a material. Fills: All manmade deposits of soil and waste-materials are called fills. Permeability influences the rate of settlement of a saturated soil under load. Atterberg Limit is a measure of the critical water content in a fine-grained soil. Wrong. Cohesion is derived in the fine grained soils from the water films… These are the soil embankments raised above the ground surface. Engineering Properties of Soil The following properties of soil are taken into consideration while dealing with soil as a construction material. Soil Engineering in Foundation. Cohesion is derived in the fine grained soils […] Importance of Soil Studies in Civil Engineering: Till the beginning of present century, the importance of study of soil properties was not felt. All the civil engineering structures are supported on or below the surface of the earth; This is applied to all structures whether it be building, bridge or dams. Keep reading to find out why. The stability of slopes and retaining structures can be greatly affected by the permeability involved. Retaining Structure. The knowledge of subsoil conditions at a site is a prerequisite for safe and economical design of sub-structural elements. 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