Foaming composition, foaming agent, foam concrete and preparation method of foam concrete

The invention belongs to the technical field of building materials, and particularly relates to a foaming composition, a foaming agent, foam concrete and a preparation method of the foam concrete. The foaming composition is prepared from an acid component, a salt component, a bonding component, a foam stabilizing component and a synergistic component according to the mass ratio of (11.25-19.25): (7.5-11.25): (7-15): (0.2-1.8): (0.2-1). The foaming agent prepared from the foam composition is good in foaming performance and high in stability; foam concrete prepared from the foaming composition has relatively low dry density and heat conductivity coefficient, and is suitable for being used as a thermal insulation material. 本发明属于建筑材料技术领域，特别涉及一种发泡组合物、发泡剂、泡沫混凝土及泡沫混凝土的制备方法。本发明的发泡组合物由酸组分、盐组分、粘结组分、稳泡组分、增效组分按质量比(11.25～19.25)∶(7.5～11.25)∶(7～15)∶(0.2～1.8)∶(0.2～1)组成。由本发明的泡沫组合物制备的发泡剂发泡性能好、稳定性强；采用本发明的发泡组合物制备的泡沫混凝土具体较低的干密度和导热系数，适宜用作保温材料。