The invention discloses a preparation method of a high-performance heat-preservation thermal-insulation
wall material. The high-performance heat-preservation thermal-insulation
wall material comprises, by weight, 20-40 parts of
cement, 10-30 parts of ceramsite, 20-40 parts of
blast furnace slag and 30-50 parts of
fly ash. The high-performance heat-preservation thermal-insulation
wall material has a sand ratio of 39-42%, contains 0.2-0.5% of
silicon oxide aerogel based on dry materials, contains a
water reducer of which the use amount is determined according to fluidity and has a water-binder ratio of 0.45-0.50. The preparation method comprises dispersing prepared
silicon oxide aerogel in water, uniformly mixing
cement, ceramsite,
blast furnace slag and
fly ash according to the above ratio to obtain a uniform mixture, adding a
water reducer into water, carrying out strong stirring, carrying out
casting according to a certain volume ratio and carrying out maintenance to obtain the high-performance heat-preservation thermal-insulation wall material with excellent
thermal insulation and high strength. The high-performance heat-preservation thermal-insulation wall material has light weight, thermal-insulation effects, high strength and good fireproof performances.