The Role of Biliquid Foam in Generating Nanostructured Elements of the Submicron Structure of Foam Concretes

摘要

Nonautoclaved foam concretes manufactured by stirring a cement paste and a foam formed by an aqueous solution of a foaming agent, thanks to their low weights, low materials, power, and labor consumptions, durability, and high efficiency, are promising for use in low-floor house building. Here, we report the first comparison of the submicron structures of two fundamentally different types of nonautoclaved foam concretes, one being an ordinary (monoliquid) foam concrete and the other a new biliquid foam concrete. The use of biliquid foams generates nanostructured elements in the foam concrete microstructure, thereby radically improving the performance macroparame-ters of foam concretes, namely strength, frost resistance, and crack resistance.