先把实质密度求出来.2.7g/cm3 =2.7kg/L
2.7kg/L÷(1-1.2%)=2.7327935222672 kg/L
之后密度变成1.5kg/L
所以孔隙率P=(2.7327935222672-1.5)÷2.7327935222672 =0.45111111111111
=45.1%
先把实质密度求出来.2.7g/cm3 =2.7kg/L
2.7kg/L÷(1-1.2%)=2.7327935222672 kg/L
之后密度变成1.5kg/L
所以孔隙率P=(2.7327935222672-1.5)÷2.7327935222672 =0.45111111111111
=45.1%