Umbilical and Inguinal Hernia Symptoms and Treatment. A hernia occurs when an organ inside the body (usually the intestine or bladder) pushes through an opening in the abdominal wall. Learn how to spot the signs of two common hernias and when to seek treatment. Facebook.
Cohesion is the component of shear strength of a rock or soil that is independent of interparticle friction. In soils, true cohesion is caused by following: 1  Electrostatic forces in stiff overconsolidated clays (which may be lost through weathering)  Cementing by Fe2O3, CaCO3, NaCl, etc.
COMPACTION OF SOILS. Compaction means pressing of soil particles close to each other by mechanical methods. Air during compaction is expelled from the void space in the soil mass and therefore the mass density is increased.Compaction is done to improve the engineering properties of the soil. Compaction of soil is required for the construction of earth dams, canal embankments, highways, runways and many other structures.STANDARD PROCTOR TEST. To assess the amount of compaction and water content required in the field, compaction tests are done on the same soil in the laboratory.OMPACTION OF SOILS. Compaction means pressing of soil particles close to each other by mechanical methods. Air during compaction is expelled from the void space in the soil mass and therefore the mass density is increased.