Foam cement insulation board and preparation method thereof

The invention discloses a foam cement insulation board and a preparation method thereof. The foam cement insulation board comprises, by weight, 60-80 parts of cement, 20-40 parts of fly ash, 15-35 parts of hollow microbeads, 10-20 parts of calcined kaolin powder, 5-15 parts of wollastonite, 2-8 parts of micro-silicon powder, 4-10 parts of reinforcing fibers, 1-5 parts of light calcium carbonate, 1-5 parts of aluminum carbonate, 1-3 parts of functional additive, 0.5-1.5 parts of foaming agent and 80-100 parts of water. The foamed cement insulation board has excellent heat preservation performance; the calcined kaolin powder, the wollastonite, the micro-silicon powder, the light calcium carbonate and other materials are used, so that the weight of the foam cement insulation board is improved, and the strength enhancing effect is improved; the water absorption of the material is reduced, so that the foamed cement insulation board is light and fireproof, the heat preservation performance of the foamed cement insu