MR=fMC=1.2×6.66=7.992㎝
y=1.73(C-B/M) y=1.73(40-75/2.6)=19.26g 加入的氯化銨的數(shù)位19.26g
Ρ=m/100=188/100=1.88g/cm3 這批砂的堆密度為1.88.