| abstract |
A kind of negative pressure wheel cover room warming plate of good heat-insulation effect provided by the invention, including framework, outer thermal insulation layer, core thermal insulation layer, the inner insulating layer set gradually from bottom to top in framework, framework outer wall are provided with heat insulating coat；Filling air entrained concrete in outer thermal insulation layer；Filling-modified gangue RPUF compound insulating material in the core thermal insulation layer；Filling aerosil in the inner insulating layer.Present invention offer warming plate preparation technology is simple, cost is cheap, and fire resistance is good, high insulating effect. |