Figure 2
From: Impact of Biocompatible Nanosilica on Green Stabilization of Subgrade Soil

(a) FTIR spectra of raw wheat husk and (b) wheat husk ash.
From: Impact of Biocompatible Nanosilica on Green Stabilization of Subgrade Soil

(a) FTIR spectra of raw wheat husk and (b) wheat husk ash.