Homework 4: A dry rock sample of a weight equal to 1350 gm and a diameter of 7.5 cm and a height equal to twice the length. If you know that the size of the voids inside the rock is 180 cm³, find the following: Moisture content, real specific weight of the rock, percentage of voids, dry density, degree of saturation, air content. [Ans: w=0, G,-2.797, e-0.373, ya-2.04 g/cm³, S₁-0 and a=1]

Q: A liquid limits test carried out on a sample of inorganic soil taken from below the water table gave…

A: Given data, Cone penetration (mm) 15.5 18.2 21.4 23.6 Moisture content % 34.6 40.8 48.2 53.4…

Q: A soil sample has a void ratio of 0.5 and its porsity will be close to O A. 50% O B. 66% O C. 100% O…

A: Void ratio- e=0.5 It is needed to find the value of the porosity n.

Q: Calculate the surface area to volume ratio of a series of rocks having spherical grains of radii 1,…

A: Let's calculate this step-by-step:First, we need to understand what we're calculating:Surface area…

Q: void ratio of 0.35. it was also found out that the porosity is 23%, moisture content is 12% and…

A:

Q: A large piece of dry rock has a mass of 2450 kg and volume of 0.925 m³. The specific gravity of the…

A:

Q: A soil sample has a bulk unit weight of 17.5 kN/m^3 at a water content of 10.1%. Use Gs=2.58…

A:

Q: provide solution and also the table

A: RockSedimentsPoreVolume,mm3Porosity, %Side, mmVolume,mm3Radius, mmVolume,mm3No. ofsediments…

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.