8 results about "Void ratio" patented technology

The void ratio of a mixture is the ratio of the volume of voids to volume of solids. It is a dimensionless quantity in materials science, and is closely related to porosity as follows: e=VV/VS=VV/(VT-VV)=ϕ/(1-ϕ) and ϕ=VV/VT=VV/(VS+VV)=e/(1+e) where e is void ratio, ϕ is porosity, VV is the volume of void-space (such as fluids), VS is the volume of solids, and VT is the total or bulk volume. This figure is relevant in composites, in mining (particular with regard to the properties of tailings), and in soil science.