The inorganic lightweight foam materials with excellent thermal insulation were prepared using sodium silicate as main raw materials.The heating temperature was determined by TG-DSC.The microporous structure of foaming material was characterized by scanning electron microscope.The influence of fly ash,aluminum chloride,and silicone on the properties of the material was studied.Compressive strength was improved by the addition of the fly ash and aluminum chloride.The hydrophobicity was enhanced by adding sil...