The relation between porosity and void ratio
we know value of n, Firstly writes its
Now we reverse the equation by dividing by 1
total volume come upward due to divide
putting total volume V = Vv + Vs
putting e which divide by 1 so our value as according to the equation
star mark equation is most important you can find e from n and n from using this equation.
firstly finding e value from n
first transfer the 1 from the right side to the left side
then take l cm as shown in fig
the last step is lust reverse the value which give our final equation
we can also find an equation where n is find by e
an instant of transfer 1 toward left side this time
just take l cm of right side equation
now simply reverse the equation
and we ger a equation where you find porosity by using void ratio only.