Generally, It's a kind of concrete that contains no big aggregates and just fine sand and cement, water, and foam. Simply because it doesn't include things like coarse material, it could be viewed as moderately homogenous compared to ordinary concrete. The foaming agent is mainly used in making foam concrete https://griffiniifgc.cosmicwiki.com/1537892/nickel_phosphorus_alloy_no_further_a_mystery