苏联硅酸盐材料制品科研所研究成一种使加气混凝土制品的发气速度可以得到调节的复合发气剂。这是一种铝粉和硅铁合金粉的混和物。铝粉和硅铁合金粉本身都是发气剂,但是,它们的发气速度和发气量不同。硅离子和料浆中碱性成分发生反应的速度 The Soviet Scientific Research Institute of Silicate Materials Research has developed a composite gas generating agent that can regulate the gas generation rate of aerated concrete products. This is a mixture of aluminum powder and silicon iron alloy powder. Both aluminum powder and silicon-iron alloy powder are gas-generating agents themselves, but their gas-generating rates and gas-generating rates are different. The speed at which silicon ions react with alkaline components in the slurry