The present invention provides an inorganic foaming thermal-insulation
mortar and a preparation method thereof, and belongs to the technical field of
building material preparation. The thermal-insulation
mortar comprises a cementing material, expanded
perlite particles, a
macromolecule polymer, a coagulant, an early strength agent, a physical
foaming agent, a chemical
foaming agent hydrogen peroxide, a chemical
foaming agent foaming catalyst, a hydrophobic agent, reinforced short fibers and water. According to the present invention, the inorganic foaming thermal-insulation
mortar can be directly coated on the wall and the roof requiring the thermal-insulation treatment, the thickness of the inorganic thermal-insulation mortar layer can be adjusted within 10-100 mm, screeding finishing construction is performed before the cementing material is subjected to final setting, and hardening is performed to obtain the inorganic thermal-insulation mortar layer with characteristics of good durability, good
water resistance and good heat insulation, wherein the inorganic thermal-insulation mortar layer never sheds, and has the same service life as the building being subjected to thermal-insulation by the inorganic thermal-insulation mortar layer; and the
raw material cost is low, and significant
economic benefits and environmental benefits are provided.