defined as the ratio of the volume of water to the volume of voids S V VV w aw = + The distribution of the volume phases may be expressed in terms of e and S, and by knowing the unit weight of water and the specific gravity of the particles the distributions by weight may also be determined as indicated in Table 3. Relation Between Submerged Unit Weight, Specific Gravity, Void Ratio and Unit Weight of Water 23rd April 2020 0 By Malay Sautya In this article, we shall make a formula or relation between the submerged unit weight( ), specific gravity(G), void ratio(e) … G = specific gravity of soil solids S = degree of saturation of the soil e = void ratio w = water content or moisture content Density of water and gravitational constant ρ w = 1000 kg/m 3 ρ w = 1 g/cc ρ w = 62.4 lb/ft 3 g = 9.81 m/s 2 g = 32.2 ft/sec 2 Relative Density The water content is 0.70%. Darcy's Law - Void Ratio Calculation. Calculate the void content in the aggregate using the bulk density determined by either the rodding, jigging, or shoveling procedure, as follows: %Voids= 100[(SxW)-M]/ (SxW) Equation 6. where: M: bulk density of the aggregate, kg/m^3, S: bulk specific gravity . The posoity and the void ratio are inter-related as follows: e = n /(1-n) and n = e / (1+e) The value of void ratio depends on the consistence and packing of the soil. The specific gravity of the soil particles is 2.75. Read More: Void ratio is usually used in parallel with soil porosity (n), which is defined as the ratio of the volume of voids to the total volume of the soil. W: density of water, 998 kg/m^3. Specific gravity of soil solids c. Void ratio Solution ... A soil sample has a void ratio of 0.72 , moisture content =12% and Gs=2.72 determine the following: a)Dry Unit Weight, moist unit weight (KN/m3) b)Weight of water in KN/m3 to be added for 80% degree of saturation. Void ratio with specific gravity of solids and water content? Darcy's law is a simple proportional relationship between the instantaneous discharge rate through a porous medium, the viscosity of the fluid and the pressure drop over a given distance. Here we can calculate for Darcy's Law Void Ratio. I have a soil and I will say that the specific gravity of solids, Gs = 2.65. S V V V eV w v w s == Vw = e S Vs Void Content. 2. This void ratio calculator can be used to calculate the ratio of the volume of void space to the volume of solids. Also, determine its dry density and degree of saturation. – Calculate the bulk specific gravity of the combined aggregate – Calculate the effective specific gravity of the aggregate – Calculate the percent absorbed asphalt for the mixture – Calculate the percent effective asphalt for the mixture – Calculate the percent voids in total mix for the mixture Determine the void ratio of a soil if its bulk density is 125 lb/ft 3 and it has a moisture content of 24 percent. Home (current) ... e = void ratio, ρst = specific gravity or particle density, w = net water content by weight and S = degree of saturation. Related Calculators Bulk Unit Weight Specific gravity of soil solids, G = 2.72; ... During testing, the deformation is measured from LVDT, but need to calculate the void ratio to plot void ratio-stress relationship.